125results about How to "Low cost to manufacture and use" patented technology

The invention discloses a multi-channel parallel near infrared spectrum imaging system. A multi-wavelength light emitting diode (LED) is applied to finishing emission of near-infrared light. An avalanche photodiode is used for detecting a weak optical signal, the simulating lock-in amplifier technology is used for achieving amplification of the signal, and a near infrared spectrum cerebral function imaging helmet disclosed in Chinese patent application CN200520002784.8 can be used for improving the partial unreasonable design of a self-adaptation head portion. The multi-channel parallel near infrared spectrum imaging system can achieve continuous rapid accurate detection and collection of cerebral blood oxygen signals, overcomes the defect of an existing functional near infrared system, and brings superiority of the near infrared spectrum imaging technology compared with other cerebral function imaging technologies into full play.

The invention discloses a crop biomass nondestructive testing image acquisition and processing device and a testing method and aims at providing the crop biomass nondestructive testing image acquisition and processing device which is low in manufacturing and use costs and the testing method which is simple and convenient. The crop biomass nondestructive testing image acquisition and processing device comprises two camera height adjusting devices, a background wall, a calibration board, a lifting adjusting device, a seedling placing platform, a test bed and an image data acquisition, processing and analysis system. The image data acquisition, processing and analysis system comprises two charge coupled device (CCD) digital cameras and a computer. The camera control module of the computer is used for acquiring, displaying and storing the acquired images; and statistical analysis of the data is conducted through a biomass prediction algorithm module to finally obtain a crop biomass prediction model. The crop biomass nondestructive testing image acquisition and processing device and the testing method are suitable for the nondestructive testing of fresh biomass or dry biomass of potted crops or the biomass tracking and measurement of a single crop in the entire growth period.

The automatic backflush net filter has the basic structure including a filter casing with water inlet and water outlet, a filtering net set inside the casing, and a dirt draining pipe inside the filtering net. It features the filter casing separated into a filtering cavity a dirt draining cavity; and the dirt draining pipe penetrating the filtering cavity the dirt draining cavity and possessing one up and down moving water driven rotating body coaxial with the filtering net and homogeneously distributed dirt sucking tubes perpendicular to the filtering net. The dirt draining pipe has simultaneous radial rotation and axial shift to make the inside of the filtering net flushed successively without affecting the normal operation of the filter. The automatic backflush net filter has low manufacture and use cost and may be used widely in agriculture.

The invention discloses a biaxial drawing clamp with adjustable drawing ratio, relating to a clamp of a tensile testing machine. The biaxial drawing clamp comprises a base, a drawing plate and a mounting frame, wherein an upper chuck, a lower chuck, a left upper pull rod, a right upper pull rod, a left lower pull rod and a right lower pull rod are arranged on the base and the drawing plate correspondingly, a right connecting plate is arranged on the right side of the mounting frame, the upper end and the lower end of the right connecting plate are hinged with the right upper pull rod and the right lower pull rod, respectively, a left connecting block is arranged on the left side of the mounting frame, and is hinged with the left upper pull rod and the left lower pull rod, linear bearings are arranged on the left connecting block and the right connecting block, respectively, a left horizontal pull rod and a right horizontal pull rod are arranged in the linear bearings, a left chuck is arranged on the right end of the left horizontal pull rod, a right chuck is arranged on the left end of the right horizontal pull rod, the base is provided with a left guide pillar and a right guide pillar with adjustable inclination angles, a left slider and a right slider are arranged on the left and right guide pillars correspondingly, the left horizontal pull rod is hinged with the left slider, and the right horizontal pull rod is hinged with the right slider. The biaxial drawing clamp is simple in structure, low in cost, adjustable in drawing ratio, and high in biaxial drawing precision.

The invention provides an acoustic-wave fish attracting/driving device. The device utilizes acoustic waves to attract/drive targets, can effectively overcome the disadvantages that the prior art is high in manufacture and application cost, low in action efficiency, small in action range and application time range and severe in environmental pollution, has the advantages of low cost, fast far signal propagation, no limit on time and no environmental pollution, and can remarkably increase yield and income. The device consists of a sound source, a power amplifier, an acoustic generator, a power source, a switch, a shell and other parts, wherein audio signals sent by the sound source are subjected to power amplification, and corresponding acoustic waves are generated by the acoustic generator to attract or drive the targets.

The invention discloses a calibration method for a non-contact R-test measuring instrument using an eddy current displacement sensor. Calibration of a measuring coordinate system and calibration of adisplacement sensor plane are included. A measuring ball is installed on a machine tool spindle, the bottom face of a measuring instrument is placed on a machine tool working table, the spindle is moved so that the measuring ball center is roughly located at the intersection point of the axes of three displacement sensors, a measuring coordinate system origin of the R-test measuring instrument iscalibrated, and the direction of a machine tool coordinate system is taken as the direction of the measuring coordinate system; the spindle is moved to make a ball head move to different coordinate points. Calibration of the non-contact R-test measuring instrument sensor reaction plane is completed according to the distances from the coordinate points to a sensor reaction plane. According to the calibration method for the non-contact R-test measuring instrument using the eddy current displacement sensor, the influence of installation errors of the non-contact R-test measuring instrument in processing and assembling and on the machine tool on the measuring accuracy can be greatly reduced, so that the manufacturing and using costs of the instrument are lowered, and the measuring accuracy andefficiency are improved.

The invention relates to the technical field of medical instruments, in particular to an electromagnetic cardiac pulse assisting device. The electromagnetic cardiac pulse assisting device comprises an inner membrane, an outer membrane supporting body, two permanent magnets, electromagnets, a power source and a controller. The inner membrane covers the surface of the heart, and the outer membrane supporting body covers the outer side of the inner membrane. The two permanent magnets are fixed to the outer side of the inner membrane and correspond to the left ventricle and the right ventricle respectively. The two electromagnets are fixed to the inner side of the outer membrane supporting body and are opposite to the permanent magnets. The power source and the controller are used for supplying power to the electromagnets and adjusting the magnitude and the direction of current, so that the electromagnets can apply repulsive force or attractive force to the permanent magnets, and then the heart is driven to contract or relax. The device has the advantages of being capable of assisting the heart of the human body to beat, high in controllability, capable of improving the heart failure symptom and prolonging the service life of a patient, simple in structure, small and exquisite in size, capable of being implanted only through surgical operation, convenient to replace, low in manufacturing and using cost, long in service life and easy to accept by doctors and patients.

The invention relates to a device and method used for detecting surface shape errors of a plate optical element. The device comprises an optical element support, matching liquid and a matching liquid containing tank. When a vertical interferometer is used for measuring the plate optical element, the device can eliminate interference caused by reflective light of a rear optical surface of the plate optical element on surface shape error detection of the front optical surface, so that reliable optical surface shape error distribution of the optical surface is detected. By means of the device and method, the problem that a common vertical interferometer can not detect the surface shape errors of the plate optical element can be effectively solved, the device and method are simple in principle, manufacturing and use cost is low, and detection of the surface shape errors of the plate optical element can be finished on the condition that an original vertical interferometer structure is not changed. The surface shape errors of the optical element are detected in a non-contact mode, the optical element is not damaged, clamping stress does not exist, the optical element can be cleaned with tap water during the detection process of the surface shape errors of the optical element, and special cleaning solvents and methods are not needed.

The invention discloses a mounting structure for an appliance guide rail. The mounting structure for the appliance guide rail is that a mounting groove is formed in an appliance base; at least one first fixing clamp is formed on one side of the mounting groove; a first clamping groove is formed between the first fixing clamp and a base; at least one second fixing clamp is formed on the other side of the mounting groove; a second clamping groove is formed between the second fixing clamp and the base; a first limiting block and a second limiting block are respectively formed on two sides of the second fixing clamp and respectively form a first limiting groove and a second limiting groove with the base, wherein the first limiting groove and the second limiting groove are circular arc shaped limiting grooves; two ends of a clamping spring are circular arc shaped and are respectively arranged in the first limiting groove and the second limiting groove and are in line contact with the sidewalls of the first limiting groove and the second limiting groove; and the medium section of the clamping spring is arranged in the second clamping groove. The mounting structure for the appliance guide rail has the advantages that the structure is simplified, the production cost is decreased, the mounting stability of the guide rail is ensured, and the automatic assembling can be conducted.

The invention provides an infant regulative CT examination protecting cover which is provided with a back plate for an infant to lie on. A first sliding way is arranged on the position corresponding to the part from the chest to the legs of the infant on the inner layer of the back plate. A chest lead plate and a belly lead plate of the inner layer of the back plate slide in the length direction of the back plate in the first sliding way respectively. Second sliding ways which are parallel to the first sliding way are arranged on the two sides of the back plate corresponding to the part from the chest to the legs of the infant. An arch-shaped chest protecting cover and an arch-shaped belly protecting cover are arranged in the second sliding ways in a sliding mode though the two ends respectively. During using, by flexibly adjusting the positions of the chest protecting cover, the belly protecting cover and the corresponding lead plates, the head or the chest or the belly of the infant can be selectively subjected to CT examination.

An automatic pneumatic dredging valve comprises a valve body. A spring cavity, a mandrel cavity and a valve plate cavity are formed in the valve body. An end cover is installed at the end, provided with the valve plate cavity, of the valve body, a spring gland is installed at the end, provided with the spring cavity, of the valve body, the mandrel cavity is communicated with the valve plate cavity and the spring cavity, a valve plate is installed in the valve plate cavity and separates the valve plate cavity into a first chamber and a second chamber which are independent and are not communicated, a mandrel is installed in the mandrel cavity, a certain gap is formed between the mandrel and the mandrel cavity, a spring is installed in the spring cavity, the two ends of the spring are in contact with the spring gland and the mandrel respectively, one end of the mandrel is in contact with the valve plate, and the spring can provide reset force for the valve plate through the mandrel. The automatic pneumatic dredging valve is low in manufacturing and using cost and accurate and stable in running, and has the advantages of being large in instant inflating amount, high in responding speed and blocking removing efficiency, stable in running, simple in structure and convenient to machine and assemble.

The invention discloses a washing system for a dish-washing machine. The washing system comprises a cylinder and a bubble generating device, wherein the cylinder contains washing liquid, and the bubble generating device is arranged on the inner side of the bottom of the cylinder and used for continuously and/or intermittently generating gas. According to the washing system, when the dish-washing machine runs, the bubbles which are generated by the bubble generating device in the cylinder rush to the washing liquid in the cylinder, afterwards, the bubbles vertically rise and reach to the surface of tableware, and the tableware is cleaned by using shock waves generated when the bubbles are broken on the surface of the tableware, so that the tableware is more thoroughly cleaned and is cleaner. Meanwhile, the washing system is simple in structure, so that the dish-washing machine with the washing system is lower in manufacturing or using cost. The invention relates to the technical field of dish-washing machines.

The invention relates to the technical field of a packer used for petroleum drilling and provides a hydraulic sealing permanent packer. The hydraulic sealing permanent packer comprises a central pipe, a lower connector, a spindle pipe, a rubber plug sealing device, an upper base hanging device, a lower base hanging device and a hydraulic driving device, wherein the spindle pipe is fixedly mounted on the exterior at the lower end of the central pipe through screw threads; the lower connector is fixedly mounted on the exterior at the lower end of the spindle pipe through screw threads; an upper connecting thread is arranged on an inner wall of the upper part of the central pipe; a lower connecting thread is arranged on the inner wall of the lower part of the lower connector; and the rubber plug sealing device, which can swell along a radial direction after being pressed so as to seal a well, is mounted outside the upper part of the central pipe. The hydraulic sealing permanent packer is reasonable and compact in structure and is convenient in usage. Under the condition of keeping the pressure, the lower base hanging device, the rubber plug sealing device and the upper base hanging device are driven to move upward by the hydraulic driving device, the upper base hanging device and the lower base hanging device are located and hung on a well wall, and meanwhile, the sealing is realized by the rubber plug sealing device. The hydraulic sealing permanent packer has the characteristics of simple operation, low manufacturing and using costs, reliable sealing, safety and high efficiency.

The invention discloses a multifunctional tillage machine, comprising a machine body, an engine, a transmission case, a handrail rack, a coulter and a soil guiding scraper. The engine respectively drives a transmission organ of the coulter and a transmission organ of a driving wheel by the transmission case. The transmission organ of the coulter drives the coulter, and the transmission organ of the driving wheel drives the driving wheel; the end of the transmission organ of the coulter is provided with the soil guiding scraper; both the transmission organ of the coulter and the transmission organ of the driving wheel are vertical type transitional transmission organs; the coulter is composed of two independent coulters respectively positioned at both sides of the machine body. The tillage machine of the invention has a high chassis, thereby having convenience to have ride work on the farmland ridge growing with crops, being capable of not only high-efficiently finishing plowing preparation work such as ridge forming, ditch cleaning, and the like, but also carrying out cultivating and banking in the growing process of crop so as to be an ideal tillage implement of crops such as tobacco leaf, potato, taro, cane, etc. Simultaneously, the multifunctional tillage machine provides an ideal work platform and source of power for small watering machines and small fertilizer machineries.

The invention belongs to the technical field of stainless steel, and particularly relates to antibacterial stainless steel composite powder. The antibacterial stainless steel composite powder is prepared from the following components in percentage by mass (based on 100% in total): 0.2%-1% of nano-scale silver oxide, 16%-18% of chromium powder, 0%-1% of manganese powder, 0-0.6% of nickel powder, and 78%-83% of iron powder. According to the antibacterial stainless steel composite powder provided by the embodiment of the invention, nano-scale silver oxide powder, chromium powder, manganese powder, nickel powder and the like are added, so that homogeneous-phase distribution, in composite powder, as a result of a small particle diameter of the nano-scale silver oxide powder is easily formed while performances such as stability, oxidization resistance and corrosion resistance of stainless steel are improved, and therefore, more uniform silver-phase distribution is effectively realized, usageamount of silver is reduced, and antibacterial property of stainless steel is improved.

The invention discloses a pearlife filling system and a filling method thereof. The pearlife filling system comprises a vacuuming device, a dehydration tank, a heater, a dehydrator and an air supply device, wherein the air outlet of the air supply device is connected with the air inlet of the dehydrator through a pipeline; the air outlet of the dehydrator is connected with the air inlet of the heater through a pipeline; the air outlet of the heater is connected with the air inlet in the lower part of the dehydration tank through a pipeline; a sand outlet in the bottom of the dehydration tank is connected with the sand inlet of a low-temperature container to be filled through a pipeline; the vacuuming hole of the low-temperature container to be filled is connected with the vacuuming devicethrough a pipeline; a depressurizing valve is arranged on the pipeline between the dehydrator and the heater; a first valve and a second valve are respectively arranged at both ends of the depressurizing valve; an air outlet is formed in the upper part of the dehydration tank. The pearlife filling system is capable of solving the problem that pearlife is liable to be affected with damp when beingput into a conventional low-pressure container, is high in filling efficiency, good in filling effect, not easy to be affected with damp, simple in structure, convenient to operate and low in manufacturing and use cost.

The invention discloses an exhaust gas pretreatment system for a diesel engine. A humidifying device, a cyclone separator, a Laval nozzle and a diffuser pipe are sequentially arranged in the flowing direction of exhaust gas, wherein a central body is arranged inside the cyclone separator, the Laval nozzle and the diffuser pipe; a flowing passage of the exhaust gas is formed inside space between the tube wall of the cyclone separator, the Laval nozzle and the diffuser pipe, and the central body; screw blades are arranged inside the cyclone separator through a semi-ellipsoidal section of the central body; the screw blades are designed in an unequal-screw pitch method according to a spiral line; a first particulate matter outlet is formed in a throat of the Laval nozzle and is used for discharging sulfide and particulate matters during separation of the exhaust gas. The exhaust gas pretreatment system for the diesel engine is simple in structure and low in manufacturing and using cost, can provide the purified exhaust gas for the diesel engine without adding too much equipment, and can reduce sulfur emission, so that a stricter emission requirement can be met.

The invention discloses a refining agent for recovering red composition brass, which is prepared by smelting the following ingredients by weight percentage: 8-20% of Na2B4O7, 20-35% of MgF2, 45-70% of Na2CO3, and 1-3% of Y. The refining agent for recovering the red composition brass is low in cost, and service cost, has obvious deoxidation, degassing and impurity removal effects, can effectively purify brass liquid, and improves conductivity of regenerated red brass.

The invention relates to a spiral oil pumping device. The device comprises an oil pumping barrel with openings at the two ends, wherein an oil production machine is axially installed in the oil pumping barrel and comprises a drive motor, an output shaft of the drive motor and spiral fins arranged on the output shaft; the drive motor and the output shaft are installed at intervals with the inner wall of the oil pumping barrel and are coaxial with the oil pumping barrel; and a check valve is also installed at the oil outlet of the oil pumping barrel. The device has the following beneficial effects that: the drive motor is utilized to drive the spiral fins on the output shaft of the drive motor to rotate, thus transporting the oil from the oil inlet to the oil outlet via the gap between the drive motor and the inner wall of the oil pumping barrel and ensuring the oil to flow into the oil pipeline after the check valve at the oil outlet of the oil pumping barrel is pushed open by the oil pressure so as to achieve the aims of oil pumping and transport; and the device has a small overall volume and low manufacturing and use costs, can be used in combination with the solar or wind power supply equipment, without other energy consumption, is convenient to use, has high flexibility, can be butt-jointed for relay oil transport and can be used for long-distance oil transport to increase the oil transport pressure.

The invention relates to a water spraying car for winter peaches, which includes a trolley and a water tank fixed inside the trolley. The water tank is connected with a water pump. The left and right sides of the trolley are symmetrically equipped with spraying mechanisms, and the trolley is fixed with an adjustment mechanism for adjusting the spraying mechanism; The spraying mechanism includes a connecting rod whose bottom is hinged on the trolley, a mounting base hinged on the upper end of the connecting rod, a hydraulic rod whose one end is hinged on the mounting base and the other end is hinged on the connecting rod. The upper end is fixed with a spray rod, and the connecting shaft is connected with a drive mechanism fixed on the mounting base; the adjustment mechanism includes a slide plate slidably installed on two connecting rods, a hydraulic cylinder connected with the slide plate at one end and fixed on the trolley at the other end. The invention can adapt to spraying pesticides and water spraying operations of winter peaches in different heights, different row spacings and different ranges, reduces manual labor, has short working hours and high efficiency, can avoid potential safety hazards, and greatly facilitates the planting of winter peaches.

The invention discloses an electrode type water heater capable of adjusting descaling powder automatically. The electrode type water heater comprises an insulating shell and an insulating end cover encapsulated at one end of the insulating shell. The insulating shell is internally provided with at least one set of parallel electrode sets located at the lower half segment of the insulating shell in a spaced manner. The electrode sets are fixedly arranged on the insulating end cover through sealing pieces. The insulating shell is further internally provided with insulating pieces located at the upper half segment of the insulating shell. The top ends of the insulating pieces are connected with insulating pull rods driven by a power mechanism. The bottom end of each insulating piece extends into the spaces in each electrode set. The insulating pieces can be driven by the power mechanism to move up and down in the spaces in of the corresponding electrode set so that the circuit can be in the disconnected state or the power output state. By the adoption of the structure, dirt can be cleaned through the insulating sleeves, power can be adjusted as well, the service life is prolonged greatly, the manufacturing use cost is very low, the use requirement of people is met, and the electrode type water heater has good application and population value.