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Magnetic inductive flow measuring instruments and measuring tubes
The invention relates to a magnetic-inductive flowmeter (1) for determining the flow of a medium, the magnetic-inductive flowmeter having a measuring tube (2) for guiding the medium along a longitudinal axis (L) of the measuring tube (2) and having two electrodes (3) for measuring a measurement voltage induced in the medium, wherein the measuring tube (2) has an inflow section (4), a measuring section (5) and an outflow section (6) arranged in sequence along the flow direction of the medium, wherein the inflow section (4) has a cross section that decreases in the flow direction, wherein the measuring section (5) has a constant cross section and is symmetrically designed with respect to a measuring section symmetry plane (MSE), wherein the measuring section symmetry plane (MSE) extends parallel to the longitudinal axis (L) of the measuring tube (2), and wherein the outflow section (5) has a cross section that increases in the flow direction. The object of specifying a magnetic-inductive flowmeter (1) in which the measuring accuracy is increased compared to magnetic-inductive flowmeters known from the prior art is achieved in that the outflow section (5) is at least partially designed asymmetrically with respect to the measuring section symmetry plane (MSE).
Owner:KROHNE MESSTECHNICK GMBH & CO KG
Folding anastomat anvil capable of being inserted through puncture
PendingCN119564275Asmall cross sectionavoid damageDiagnosticsSurgical needlesAnastomosis couplerEndoscopic surgery
The invention relates to the field of anastomosis devices, in particular to a folding anastomat anvil capable of being inserted in a puncture mode. By splitting and folding the nail anvil, the cross section of the device is reduced on the premise of ensuring sufficient strength, width and diameter of the nail anvil, so that on one hand, the device can be put into a body cavity through the operation hole during an endoscopic surgery, and the difficulty of the surgery is reduced; on the other hand, in combination with an anti-stabbing puncture device, on the premise that the internal organs are prevented from being injured, the hollow internal organs needing to be anastomosed can be punctured and placed with the minimum wound, meanwhile, the hollow internal organs with bacteria and other pathogens inside are prevented from being directly communicated with the clean body cavity, and the infection risk is reduced. After anastomosis is completed, the device can be folded again, the nail anvil can be conveniently taken out of the hollow visceral organ, and the anastomotic stoma of the hollow visceral organ is prevented from being damaged.
Owner:昔骜遥
Trench wall apparatus and method for creating a trench in the ground
Owner:BAUER MASCH GMBH
Fire-fighting machinery emergency starting cabinet processing device
InactiveCN119282200Asmall cross sectionachieve autonomous controlMaintainance and safety accessoriesBoring/drilling machinesWater sourceGear wheel
The invention relates to the technical field of starting cabinet machining, and discloses a fire-fighting machinery emergency starting cabinet machining device which comprises an electric telescopic rod, a first fixing plate is fixedly connected to the bottom of the electric telescopic rod, and a water inlet pipe is connected to the inner wall of a through hole of the first fixing plate in a penetrating mode. An electric telescopic rod drives equipment to move downwards, a motor drives a drill bit to conduct the drilling procedure through a driving gear and a first gear, the drill bit rotates to drive an inner fixing ring to rotate synchronously, when the drill bit rotates, the bottom slope of a warping plate makes contact with a water source, and along with the increase of the rotating speed of the drill bit, resistance borne by the warping plate is continuously increased; the wane is forced to tilt upwards with the turbine spring as the center, the outer wall of the top of the wane makes contact with the bottom of the blocking plate, a water outlet gap is formed between the wane and the water flowing groove, water on the top of the installation disc enters the bottom of the installation disc through the gap and is discharged outwards from the water outlet, and water cooling is conducted on the machining position.
Owner:SHENZHEN LIANGONG TECH GRP CO LTD
Filter module
PendingCN119548935Aeasy to separatesmall cross sectionCombination devicesAir-treating devicesMechanical engineeringPhysics
The invention relates to a filter module (1) having a housing (2) and a particle filter (3). The particle filter (3) is arranged in the housing (2) and divides the housing (2) into an untreated side (2a) and a clean side (2b). Furthermore, the filter module (1) has a bypass (5). A bypass (5) connects the untreated side (2a) and the clean side (2b) within the housing (2) by bypassing the particle filter (3). The invention also relates to an air-conditioning system having a filter module (1).
Owner:MAHLE INT GMBH
A method for realizing one-way radiation of an antenna
ActiveCN116315678Bsmall cross sectionEasy to implementAntenna supports/mountingsDisturbance protection
The present application relates to the technical field of wireless communication system, especially to a method for realizing one-way radiation of antenna, which gives different excitation phases to antenna one and antenna two which are adjacent and arranged at intervals to offset the backward radiation of the antenna. The present application offsets the backward radiation of the antenna through field offset principle, and gives different excitation phases to the antenna to offset the backward radiation of the antenna, thereby enhancing the forward radiation. The method for offsetting the backward radiation of the antenna does not need to increase additional structure, and the cross section is small. The radiation principle is simple to implement and easy to expand, and can be widely applied in communication system.
Owner:XI AN JIAOTONG UNIV
Coil structure applied to bladeless wind driven generator
ActiveCN222356051UIncrease the number ofEasy to fixMagnetic circuit stationary partsWindings conductor shape/form/constructionStructural engineeringTurbine
The utility model relates to a coil structure applied to a bladeless wind driven generator, the coil structure applied to the bladeless wind driven generator comprises a coil assembly, the coil assembly is fixed on a supporting assembly, and the coil assembly is located between an upper magnetic group assembly and a lower magnetic group assembly in the vertical direction; the coil assembly comprises a coil fixing seat and a plurality of coils, the coil fixing seat is arranged in a hollow mode, the coil fixing seat is fixed to the supporting assembly, and the coils are evenly fixed to the inner side of the coil fixing seat at intervals. According to the utility model, the coil assembly is independently fixed on the supporting assembly, and the magnetic group assembly is divided into the upper magnetic group assembly and the lower magnetic group assembly which are arranged above and below the coil assembly, so that the cross section is reduced, and the problems that a bladeless wind driven generator in the prior art is not convenient to transport and install and the material cost is increased are solved.
Owner:微澜能源(江苏)有限公司
A simulated experimental circulating water tank
ActiveCN112834167BIncrease the number ofincrease water velocityHydrodynamic testingReciprocating motionCoupling
The present invention provides a simulated experimental circulating water tank, including a test section, a drainage pipeline and a water pump, which is characterized in that: the water inlet end of the test section is connected to the water outlet end of a rectifying and contracting pipeline, the water outlet end of the test section is connected to the water inlet end of an expanding pipeline, there are at least two drainage pipelines, and each drainage pipeline is symmetrically arranged around the test section, and a water pump is arranged on each drainage pipeline. The water outlet end of the drainage pipeline is connected to the water inlet end of the rectifying and contracting pipeline, and the water inlet end of the drainage pipeline is connected to the water outlet end of the expanding pipeline. The symmetrically arranged drainage pipelines significantly reduce the unevenness of the flow velocity of the water flow section, and can achieve accurate adjustment of the water flow velocity in the test section. The drainage pipelines symmetrically arranged on both sides of the test section form a circulation system with the test section, and the motor of the water pump is connected to the adjustable pitch propeller in the drainage pipeline. By adjusting the propeller speed and pitch, the water flow velocity and reciprocating motion can be adjusted, and flow, wave and wave-current coupling tests can be carried out.
Owner:OCEAN UNIV OF CHINA
Lightweight high-strength motorcycle shock absorber
PendingCN122834618Asmall cross sectionReduce fatigue loss
The application relates to the technical field of shock absorbers, and discloses a light-weight high-strength motorcycle shock absorber which comprises a connecting cylinder, a nut plate one is threadedly connected to the outer wall of the connecting cylinder, a spring one is fixedly connected to the top of the nut plate one, and the device will appear hard bottom impact when bearing huge impact; the slide rod bears pressure and drives the piston to quickly move downwards along the inner wall of the connecting cylinder; the bottom sharp corner of the supporting plate will first contact the groove at the bottom of the connecting cylinder; after the sharp corner is limited, the piston continues to move downwards and forces the supporting plate to push the fixed plate to slide along the sliding groove through the universal joint, forces the feeding port one to be dislocated with the feeding port three, and the overlapping area of the two is reduced, which will reduce the cross section of the flow aperture, increases the sliding resistance of the piston before hard bottom, and reduces the fatigue loss of the related components caused by hard bottom.
Owner:JIANGSU JINTAIBAO MACHINERY
Burner shell, burner and cooking device
PendingCN121876439Asmall cross sectionevenly distributedGaseous fuel burnerCombustorMechanical engineering
The invention provides a shell of a burner, the burner and a cooking device. The shell comprises a first cavity wall and a second cavity wall, and the first cavity wall is provided with a drainage opening; the second cavity wall and the first cavity wall are encircled to form an accommodating cavity with an opening; the distance between the second cavity wall and the plane where the opening is located is reduced in the first direction. The first direction points from the drainage opening to the second cavity wall. According to the shell provided by the invention, parts of the combustor can be reduced, and the structural complexity of the combustor is reduced.
Owner:GUANGDONG MIDEA KITCHEN APPLIANCES MFG CO LTD
Vehicle body side structure and vehicle
PendingCN121757279APlays the role of energy absorption in front impactSmall amount of deformationSuperstructure subunitsSuperstructure connectionsControl theoryMechanical engineering
The invention provides a vehicle body side structure and a vehicle. The vehicle body side structure comprises an A column and an A column anti-collision beam located on the front side of the A column. The A-column anti-collision beam extends in the vertical direction of the whole vehicle and inclines forwards relative to the A column, the top end of the A-column anti-collision beam is connected with the front cabin edge beam, the bottom end of the A-column anti-collision beam is connected with the connecting position between the A column and the threshold beam, and the A column, the front cabin edge beam and the A-column anti-collision beam are connected to form a triangular structure. According to the vehicle body side structure, the front collision energy absorption effect can be improved in the mode that the vehicle body forms a double-A-column structure and a triangular structure is formed in the A-column area, the A columns are protected, the deformation amount of the A columns is reduced, and therefore the safety of passengers under the small overlapping collision working condition can be improved, and the whole vehicle has higher collision safety.
Owner:GREAT WALL MOTOR CO LTD
Adjustable rice transplanter steering structure
ActiveCN121153428Bsmall distance differencereduce frictionTransplantingGuiding agricultural machinesAgricultural engineeringCheck valve
This invention relates to the field of check valve technology for drilling, and discloses a steering structure for an adjustable rice transplanter, including a vehicle, a transplanter rotatably connected to the side wall of the vehicle, a front wheel rotatably connected to the bottom of the vehicle, and a rear wheel rotatably connected to the bottom of the vehicle. After ensuring that the vehicle can no longer drive the transplanter forward, the front wheel is rotated in the direction where the rice is not transplanted, and rotated to the maximum angle. Then the speed of the rear wheel is increased until the speed reaches the maximum value. At this time, due to the pressure mechanism restricting the forward movement of the vehicle, and the mud and water in the muddy ground reducing the friction between the rear wheel and the ground, the vehicle drives the transplanter to turn in the direction of the front wheel, reducing the difficulty of turning the equipment. After the vehicle and the transplanter complete the turn, the original distance between L and U is K, and the distance between the original position of L and the new position of L after the turn is 2K, which is equal to the original distance between the seedlings, ensuring that the distance difference between the seedlings is small after the equipment completes the turn.
Owner:JIAXING DINGSHI MASCH MFG CO LTD
2D-DOA estimation method and system for acoustic vector sensor of any array structure
ActiveCN119667598AReduce positioning errorsReduce mutual coupling effectsDirection/deviation determination systemsComputation complexitySignal subspace
The invention provides an acoustic vector sensor 2D-DOA estimation method and system of any array structure, and relates to the array sensor direction finding technology. According to the method, the covariance matrix is obtained, characteristic decomposition is performed on the covariance matrix, the signal subspace is solved, rough estimation is performed on the two-dimensional DOA in the vector information according to the signal subspace by adopting the ESPRIT algorithm, and then phase compensation is performed on spatial ambiguity by utilizing the rough estimation result. The 2D-DOA accurate estimation of the acoustic vector sensor of any array structure is realized; the spatial layout of any array is realized by using the vector sensor, and the array element spacing of the sensor is not limited by half wavelength any more; according to the method, the information of a vector part is utilized, the information of a space phase is also utilized, the estimation precision is remarkably improved, spectral peak search and additional two-dimensional angle pairing calculation do not need to be carried out on a covariance matrix of a received signal, and the calculation complexity is remarkably reduced.
Owner:CHINA THREE GORGES UNIV
A charging socket
ActiveCN224669009Usmall sectionlarge section
The application provides a charging socket, and relates to the technical field of charging accessories. The charging socket comprises at least two power terminals, the power terminals are provided with connecting end faces, at least two connecting assemblies, the two connecting assemblies are connected with the connecting end faces of the two power terminals in one-to-one correspondence, and at least four conductive pieces, at least one power terminal is connected with at least two conductive pieces through the connecting assembly. The application connects a single power terminal with multiple conductive pieces (such as at least two conductive pieces) through the connecting assembly, so that the charging power is increased. Compared with the method of increasing the charging power by using a single large-section wire, since the increased power and total current-carrying capacity remain unchanged, the single large-section wire is replaced by multiple conductive pieces, so that the cross-sectional area of each conductive piece is smaller than that of the single wire, the conductive piece with a small cross section is easier to prepare, and the cross section is smaller, so the conductive piece is easier to bend and wire, and assembly is facilitated.
Owner:PHOENIX CONTACT (NANJING) NEW ENERGY VEHICLE TECH CO LTD
Thermal flow sensor and flow controller
ActiveCN222505513UStable resistancereduce biasVolume/mass flow measurementFlow transducerCapillary Tubing
The utility model belongs to the technical field of flow sensors, and discloses a thermal flow sensor and a flow controller. The flow channel pipe is arranged in the shell body; the at least two resistors are arranged at intervals, each resistor comprises a thermistor layer and a first insulating layer, and the thermistor layer is arranged on the first insulating layer; one surface, deviating from the thermistor layer, of the first insulating layer is arranged on the flow channel pipe so as to conduct heat of the thermistor layer to the flow channel pipe; and the bridge circuit is electrically connected with the resistor, and the bridge circuit is used for transmitting a voltage signal of the resistor. According to the thermal flow sensor provided by the embodiment of the invention, the technical problem that the thermal contact resistance between different resistors and the capillary tube is deviated in the prior art is solved.
Owner:SHENZHEN LANDONG PRECISION CO LTD
Device for separating impurities on roller with card clothing
PendingCN119301317Areduce gapEasy to adjustCarding machinesFibre cleaning/opening machinesStructural engineeringIndustrial engineering
The invention relates to a device for separating impurities on a clothing-attached roller of a flat carding machine, roller carding machine or cleaning machine, comprising at least one tool (21), which is arranged on a tool holder (20), the tool holder (20) being adjustable concentrically with respect to the clothing-attached roller (3a), and comprising a stationary suction hood (17), which is arranged on the tool holder (20), the inlet opening of the suction hood cooperates with a side opening (25c) of a stationary suction channel (25a). The invention is characterized in that the tool holder (20) is adjustably arranged within the suction channel (25a).
Owner:TRUETZSCHLER GRP SE
A corrosion-resistant detection device and method based on etching foil
The application discloses a kind of corrosion foil-based corrosion-resistant detection equipment and detection method, it is related to material corrosion-resistant detection technical field.The corrosion foil-based corrosion-resistant detection equipment, it includes: a plurality of passages are opened in the side of box, each passage is placed with material changing device, material changing device is set to move along horizontal direction and in and out of box, the lower side of the one end of each material changing device is provided with lower deflector, the side of each lower deflector away from box is provided with self-adapting cleaning device, and self-adapting cleaning device is used to absorb the liquid on the surface of material after salt fog treatment.The corrosion foil-based corrosion-resistant detection equipment and detection method, material moves in and out of box with placing plate, two ends of moving path are used as limit point, the sealing and rotation of placing plate are facilitated, and the placing plate after rotation is adapted to self-adapting cleaning device, and the replacement and cleaning of material are facilitated.
Owner:YANGZHOU HONGYUAN ELECTRONICS
Tubular material feeding equipment
PendingCN119387447AGuaranteed accuracysmall cross sectionOptically investigating flaws/contaminationMetal working apparatusStructural engineeringMachine
The invention discloses tubular material feeding equipment. The tubular material feeding equipment comprises a rack, a controller, a discharging device, a pushing device, a cutting device and a conveying device; the material pushing belt is arranged on the machine frame in a back-and-forth moving mode, the output end of the material pushing belt moves in the material storage groove in a back-and-forth mode, and the material pushing belt is a tin steel belt; the pushing device is arranged on the machine frame in cooperation with the pushing driving assembly and drives the pushing belt to move back and forth, so that an existing annular spring pushing mode is replaced with a tin steel belt pushing mode, the elasticity of a spring can be overcome, the pushing precision can be guaranteed in the pushing process, the cross section of the tin steel belt is smaller, and the service life of the tin steel belt is prolonged. According to the feeding device, various material pipes with different sizes can be used, so that the feeding process of different products is completed, and the application limitation is smaller.
Owner:DONGGUAN NANBU JIAYONG ELECTRONICS CO LTD
Deformable vertical photovoltaic system and installation method thereof
PendingCN119487746Asmall cross sectionlow costPhotovoltaic supportsSolar heating energyElectrical batteryMechanical engineering
The invention relates to a deformable vertical photovoltaic system (100) comprising at least one photovoltaic cell (105) and a post (110) having an axis (A), the deformable vertical photovoltaic system further comprising at least: first connection means (115), referred to as lower connection means, for connecting a lower portion of the module to the post; and second connection means (120), referred to as upper connection means, for connecting the upper part of the module to the column, each means being freely translatable at least along the axis of the column and / or being at least rotatable about an axis (B, C) perpendicular to the axis of the column, at least one of the lower connection means and the upper connection means being freely translatable at least along the axis of the column, the other connection means is free to rotate at least about an axis perpendicular to the axis of the post.
Owner:GDF SUEZ SA
Magnetic group structure applied to bladeless wind driven generator
ActiveCN222356069USimple structureEasy to fixMagnetic circuit stationary partsWind energy generationClassical mechanicsStructural engineering
The utility model relates to a magnetic group structure applied to a bladeless wind driven generator, the magnetic group structure applied to the bladeless wind driven generator comprises an upper magnetic group assembly and a lower magnetic group assembly, the upper magnetic group assembly is arranged on the upper side of a coil assembly, and the lower magnetic group assembly is arranged on the lower side of the coil assembly; the upper magnetic group assembly comprises an upper magnet mounting seat, a plurality of upper magnets and an upper magnet connecting flange, the plurality of upper magnets are uniformly fixed on the upper magnet mounting seat at intervals, and the upper magnet mounting seat is fixed on the energy capturing assembly through the upper magnet connecting flange above the upper magnet mounting seat; the lower magnetic group assembly comprises a lower magnet mounting seat, a plurality of lower magnets and a lower magnet connecting flange, the lower magnets are uniformly fixed on the lower magnet mounting seat at intervals, and the lower magnet mounting seat is fixed on the energy capturing assembly through the lower magnet connecting flange below the lower magnet mounting seat. The device is convenient to transport and install, and the material cost is reduced.
Owner:微澜能源(江苏)有限公司
Any array MIMO radar angle estimation method and system based on phase compensation
ActiveCN119577309Aavoid phase bluraccurate predictionHandling data according to predetermined rulesComplex mathematical operationsSensor arrayComputation complexity
The invention provides an arbitrary array MIMO radar angle estimation method and system based on phase compensation, and relates to the technical field of radar positioning. Comprising the following steps: calculating a covariance matrix of a signal from a signal model after array matching filtering of a receiving end, blocking the obtained covariance matrix, obtaining a permutation matrix, constructing a matrix by using the permutation matrix and a unit matrix, carrying out blocking operation on the matrix, obtaining an initial phase difference matrix of array elements, and obtaining an initial phase difference matrix of the array elements; the method comprises the following steps: roughly estimating a non-fuzzy low-precision phase difference matrix by using a phase difference matrix in which the distance between adjacent sensor array elements is smaller than half wavelength, solving ambiguity, and compensating the ambiguity to an initial ambiguous phase difference matrix to obtain a non-fuzzy high-precision phase difference matrix; and finally, accurately estimating azimuth angles and pitch angles of the two-dimensional wave departure angle 2D-DOD and the two-dimensional direction of arrival 2D-DOA. The phase ambiguity is avoided, the estimation accuracy is improved, and the calculation complexity is reduced.
Owner:CHINA THREE GORGES UNIV
Fool-proof positioning connector
ActiveCN224217839Uavoid deformationprevent prolapseIncorrect coupling preventionStructural engineeringMechanical engineering
Owner:XIAMEN AIRUIKE ELECTRONICS
A rail mileage measuring device and track inspection instrument
ActiveCN224285960Uprevent intrusionHigh precisionRailway signalling and safetyRailway auxillary equipmentCouplingControl theory
This utility model discloses a rail mileage measuring device and a rail detector. The rail mileage measuring device includes a base, rollers, a connecting shaft, a coupling, and an encoder. The base has two fixing holes and a positioning part, with the positioning part located between the two fixing holes. The two fixing holes are screwed to the rail detector, and the positioning part abuts against the rail detector. The base also has a through hole penetrating the base, with a connecting shaft installed inside the through hole. The two opposite ends of the connecting shaft protrude out of the through hole and are respectively connected to the rollers and the coupling. The end of the coupling away from the connecting shaft is connected to the encoder. The rollers, connecting shaft, coupling, and encoder are coaxially arranged. The encoder is electrically connected to the rail detector through a wire. The rotation of the rollers directly drives the encoder through the coupling, converting mechanical motion into electrical signals in real time, eliminating the cumulative errors of traditional manual counting or indirect measurement. The rollers rotate more smoothly when in contact with the side of the rail, avoiding slippage or jamming.
Owner:JIANGXI EVERBRIGHT MEASUREMENT & CONTROL TECH CO LTD