55results about How to "Low cost of use" patented technology

The invention relates to a lithium ion battery and the manufacturing method thereof, particularly relating to a high multiplying power gel polymer lithium ion power battery and the manufacturing method thereof. Mainly aiming at resolving the technical problems of safety performance, etc., which exists in the prior art, the invention provides the high multiplying power gel polymer lithium ion power battery, which has the advantages of reasonable design, simple structure, high safety performance and low cost, and the manufacturing method thereof. The main technical proposal of the invention is that the lithium ion power battery consists of a cathode mass flow liquid, an anode mass flow liquid, a cathode membrane, an anode membrane, a membrane and electrolyte, wherein, the membrane is the gel polymer electrolyte, the cathode membrane and the anode membrane are evenly coated or hot-pressed on the cathode mass flow liquid and the anode mass flow liquid; the cathode mass flow liquid, the cathode membrane, the membrane, the anode membrane and the anode mass flow liquid are orderly overlaid, forming a square single bag.

A bus arrival prompting system comprises a vehicle-mounted terminal, a network server and a client side. According to the system, an intelligent device of a user with a satellite positioning module and a wireless network data transceiver module is used as the client side, data carried with vehicle numbers and location information are sent to the network server through the vehicle-mounted terminal which is installed on the bus, the network server back feeds a vehicle line and a direction of the vehicle line and a position of the bus which is close to the user and travels in the direction of the user to the client side of the user according to a number and the direction of the vehicle line and a position of the user, the number and the direction of the vehicle line are inquired by the user through the client side, the client side displays an inquired real-time position icon of the bus on an electronic map in a screen according to the received location information of the bus, the vehicle speed and estimated time of arrival of the bus which is closest to the user are figured out, and simultaneously the figured out vehicle speed and estimated time of arrival of the bus are displayed on the screen of the client side.

A cord winding structure for window blind includes a cord winding assembly composed of a first and a second plate member, a guide rod, a first and a second shaft, a first and a second guiding wheel, and a spiral spring. The first plate member has a guide rod support bracket unit upward projected from one side thereof for supporting the guide rod thereon. The second plate member has a plurality of pulley sets provided thereon. The first and second guiding wheels are rotatably connected to between the first and the second plate member via the first and the second shaft, respectively. The spiral spring is fitted to one side of the second guiding wheel with an end extended to fasten to the first guiding wheel. A first cord is wound around the guide rod, the pulley sets and a first cord receiving groove of the first guiding wheel.

The invention relates to a trivalent chromium natural colour passivation solution for processing an aluminium alloy, comprising the following components by contents: 1-2 g/L of chromic salt, 0.05-0.1 g/L of zirconium salt, 0.01-0.03 g/L of nickel sulfate NiSO4.6H2O, 0.4-0.8 g/L of film-forming agents, 0.4-0.6 g/L of trisodium citrate Na3C6H5O7.2H2O, and the balance of water. The trivalent chromium natural colour passivation solution does not contain harmful substances, i.e. hexavalent chromium, lead, mercury, cadmium, polybrominated diphenyl ethers, polybrominated biphenyl, and the like, can be recycled, realize the clean production, passivate at normal temperature and save the energy; in addition, the aluminium alloy processed by the trivalent chromium natural-colour passivation solution has white and bright surface colour and lustre, colour approximate to the natural colour of the aluminium alloy and film neutral salt spray corrosion property meeting the national standard and can realize the substitution of the trivalent chromium passivation solution for a hexavalent chromium passivation solution.

The invention discloses a punching device strong in pressure control effect. The punching device comprises a bottom supporting base plate and a main thread sleeve with the center provided with a mainthread section. The punching device can control the pressure during punching every time, and accordingly the punched product quality and success rate are improved. In addition, the device conducts control under the combination action of various mechanical components, and therefore the manufacturing cost of the device is low, the usage cost and the maintaining cost are lower, and the beneficial effect of economy is achieved. In addition, the device is provided with a three-point positioning and clamping control mechanism, the three-point positioning and clamping control mechanism conducts positioning so that the components can be located at the center position, and accordingly the punching production quality is improved. Furthermore, the device is provided with a large air pressure air one-way flow control mechanism, large air air-pressure one-way flow can be controlled, and the phenomenon of air backflow is avoided. In addition, the device is provided with a top thread screwing type maximum air pressure control mechanism, the punching air pressure maximum value can be controlled under the action of the air pressure, and accordingly the pressure value is controlled.

The invention belongs to a directed dipole antenna for an underground earth-probing radar. The directed dipole antenna comprises an antenna shell, three dipole antennas, three reflecting plates, a low-loss dielectric, a high-loss dielectric, an insulation dielectric and a cable outlet, wherein the three dipole antennas are arranged in the shell; the three reflecting plates are arranged correspondingly back to back around the center lines of the dipole antennas; the low-loss dielectric, the high-loss dielectric and the insulation dielectric are respectively filled among the dipole antennas, the reflecting plates and the shell; each dipole antenna comprises two monopole antennas; and a loading resistor is respectively arranged between the antenna head and antenna section and between the antenna sections of each monopole antennae. The invention has the characteristics that the diameter is small, probing in a deep well under 1000m can be realized, the emission and receiving frequencies are low, the probing range is wide, the working band is wide, the s11 curve in a frequency range of 0-500M is very flat, fluctuation in a frequency range of 40M-500M under -10dB is only 1.6dB, the wave main-to-side lobe ratio is 2.5, the tail oscillation is very small, the tailing of the main peak after 10ns is less than 1/40 of the main peak, the production and use cost of the overall system is low, and the like.

The invention relates to a hydraulic drive differential feed system, which comprises an oil cylinder (3) and a ball screw(4) arranged at the front end of the oil cylinder (3); a third gear (7) is arranged at the front end of the ball screw (4); a first gear (5) is fixed on a nut (13) of the ball screw (4); the first gear (5) is meshed with a second gear (2); a fourth gear (6) is hollowly sheathed on a main shaft (1); the fourth gear (6) is meshed with the third gear (7); a fifth gear (8) is positioned at the left side of the third gear (7) and is meshed with the fourth gear (6); a first bevel gear (9) is meshed with a second bevel gear (10) on which a lead screw (11) is fixed. The differential feed system overcomes the shortcomings of the existing differential feed system of a metal cutting machine tool that not only is the number of the grade limited, but also the amount of feed of the machine tool can not be infinitely regulated and the maintenance cost is high. The hydraulic drive differential feed system has the advantages of large transmission torque and better meeting the requirements of processing and manufacturing industry and that the feed speed can be infinitely regulated.

The invention provides an external air purification device for an air conditioner. The external air purification device for the air conditioner comprises an electrostatic precipitation unit, a control unit and a housing and is characterized in that the control unit comprises a wireless communication module and an infrared ray emitting apparatus and can receive external control instructions and send remote control instructions to the air conditioner or other electric devices, the external air purification device comprises an air flow switch for detecting the start state of an indoor unit of the air conditioner for further automatically starting and stopping the purification unit according to the start and stop of the air conditioner, the electrostatic precipitation unit comprises an air flow channel formed by electrically conductive material films or sheets and a plate array, the spaced two electrically conductive materials are connected to the same electrode of a high-voltage electrostatic power supply, and at least one of the adjacent two electrically conductive materials is an electrically conductive material coated with an insulating material. Therefore, the external air purification device for the air conditioner can quickly add an air purification function to the indoor unit of the air conditioner, has the advantages of being high in purification efficiency, small in air resistance, intelligent in control and the like and can be used as an intelligent home control center if the external air purification device is provided with an air quality sensor.

The invention discloses a luminous liquid level meter for indicating a liquid level position in a liquid storage container, which solves the problem that liquid level is not easy for clear observation at night and in places with relatively dark light at relatively low cost. According to the technical scheme adopted by the invention, a light source and an electrical box are arranged at the end of a liquid level indicating tube which is made from a transparent material and vertically installed on the outer wall of the liquid storage container, a liquid level buoy with a reflective mark is placed in the tube, and scale marks are arranged on the tube wall or positions close to the left side and the right side of a tube body. In case of need, the electrical light source is started to form a bright light area inside and surrounding the liquid level indicating tube to facilitate observation; and the reflective liquid level mark on the liquid level buoy reflects light rays and then clearly indicates the current liquid level, and can indicate the current liquid volume in the liquid storage container by matching with the scale marks.

The invention discloses a carbon fiber short-cut production line sizing device which comprises a faceplate provided with a tension adjusting device, a godet, a rack, a rectangular frame fixed at the upper end of the rack and a sizing tank positioned below the rectangular frame and fixedly connected with the rack through bolts. A sizing roller partly soaked in size is arranged in the sizing tank, a size extruding device for extruding excessive size on carbon fiber and enabling the same to drip into the sizing tank for recycling is arranged on the rectangular frame, and after the carbon fiber is sized and extruded, extruded excessive size is enabled to drip into the sizing tank for recycling. The carbon fiber short-cut production line sizing device meets sizing application needs on a small-amount carbon fiber short-cut production line and is low in manufacturing cost, simple and reliable to operate and easy to clean and maintain.

The invention relates to a waste and old battery paid recovering device, which can automatically recognize input articles, can collect and store the input articles in a classified way, and can send out corresponding coins according to the models and the number of batteries. The whole device comprises three mechanisms including a battery detecting mechanism, a classified recovering and placing mechanism and a coin feedback mechanism. When the device receives the articles, the battery detecting mechanism distinguishes whether the articles are batteries or other sundries and detects the battery model; if the articles are the batteries, the batteries are conveyed into corresponding battery collecting boxes through the classified recovering and placing mechanism, and in addition, corresponding number of coins are sent out through the coin feedback mechanism; if the articles are the other sundries, the device conveys the sundries into a sundry collecting box through the classified recovering and placing mechanism, and the coin feedback mechanism does not work.

The invention relates to a modular series master robot comprising a flange serving as a base, three rocking joint modules, two rotating joint modules and a handle module. The modules are sequentially connected in series according to a connection sequence from the base to the tail end: the flange, the first rotating joint module, the first rocking joint module, the second rocking joint module, the second rotating joint module, the third rocking joint module and the handle module; each two of the modules are fixedly connected through a span ring; a base segment is fixed on an operating table through the flange; joint mandrels of the first and second rocking joint module are parallel to each other and are naturally perpendicular to those of the rotating joint modules arranged at two ends. The modular series master robot has the advantages such as ease in construction, configuration variability, simple structure, good extensiveness, high universality, capability of indifferent equilibrium, convenience in operation and ease in isomorphic mapping with slave robots; the modular series master robot is widely applicable to remote control of slave robots in the fields such as industry, medical treatment, building industry, nuclear industry and chemical industry.

The invention relates to a pumping cable fishing gear and method. The fishing gear includes a motor, a cable and a fishing tool, wherein the motor is connected with a driven pulley through a transmission belt and drives a roller and the cable wound on the roller to wind and unwind; the cable enters a drill stem through a T-union and is connected with the fishing tool; the roller is mounted in a box body and contacted with a central shaft in the box body through a ball bearing; central shaft fixing brackets are arranged at the two ends of the central shaft; and further, one end of the roller is matched with the driven gear, and the other end thereof is a roller stopping end provided with a brake ribbon, a movable core shaft, a brake handle and the like. During the use, the fishing gear is mounted, a slurry pump is started, drilling fluid is pumped from the upper end of the drill stem and impacts a cylindrical pipe column at the upper part of the fishing tool, and the dropping speed of the cable is controlled through pressing down and releasing back the brake handle; when a fishing spear collides with a wire-line coring tool or a measuring instrument and gets stuck, the slurry pump is shut down and the motor is started, and then, the tool or the instrument can be fished up by adjusting the rotating speed of the motor. The fishing gear is simple in structure and low and cheap in cost, and has simple use method and high popularization value.

The invention relates to a bionic massager for treating shoulder muscle strain, and belongs to the field of medical instruments. The bionic massager comprises a base, wherein a back plate is vertically fixed to the base, a seat plate is fixed to the back plate, two massage assemblies are arranged on the back plate, and a power assembly is arranged on the base. The bionic massager can simulate human hand operation to knead strain parts, the massage effect is greatly improved, the manufacturing cost and the use cost are low, and a patient can operate the bionic massager by himself/herself.

The invention relates to a quick oil grease oxidation degree detection method, in particular to a quick oil grease oxidation degree test box manufactured based on the quick oil grease oxidation degree detection method. According to the quick oil grease oxidation degree detection method, based on a Kreis test, a color reaction between an oil grease oxidation secondary decomposition product and phloroglucinol is conducted; by adjusting the addition proportion of an acid solution and a phloroglucinol solution, the reaction speed can be increased, color developing stability can be improved greatly, and the instability defect of an original experiment is overcome; the layering velocity is increased greatly, the clarified and transparent colorimetric layer is obtained quickly, and the interference of contrasting colors of oil samples is reduced; furthermore, the concentration of the used acid solution can be lowered greatly, operation is safer, and pollution to the environment by waste is reduced.

Provided is a television advertisement automatic switching system based on an intelligent mobile phone. The intelligent mobile phone comprises a mobile phone processing module, a storage module and a network module. A machine code of a set top box is stored in the storage module. The system further comprises a control convertor and a server. The control convertor comprises an infrared emission module. The network module sends a television station selected by a user to the server. The server obtains time information of the television advertisement inserted in the television station. When the television station begins to insert the television advertisement, a television station switching instruction will be sent to the network module. The mobile phone processing module analyzes the television station switching instruction and forms a control signal of television channel switching according to the machine code of the set top box, and the control signal of the television channel switching is sent to the set top box through the infrared emission module. When the television station stops inserting the television advertisement, a television station return instruction is sent to the network module. The mobile phone processing module analyzes the television station return instruction and forms a control signal of television channel return according to the machine code of the set top box, and the control signal of the television channel return is sent to the set top box.

The invention relates to a classified recycling and reutilization system based on domestic sewage. The classified recycling and reutilization system based on domestic sewage comprises a kitchen recycled water storage tank, a washing machine recycled water storage tank, a recycled bath water storage tank, an outdoor recycled water storage pond, three-way solenoid valves, glass tubes with nano-coatings and turbidity sensors, wherein the turbidity sensors and the three-way solenoid valves are electrically connected with a control system, water of the kitchen recycled water storage tank, the washing machine recycled water storage tank and the recycled bath water storage tank converges through an indoor toilet flushing pipeline and then is delivered to a toilet for flushing the toilet, and water of the outdoor recycled water storage pond is delivered to residential areas through pipelines for serving as water used for plant irrigation, pavement washing and car washing. The system can be laid during building of new residential areas, and also can be used for reconstruction installation in the existing residential areas, and thus the universality is wide; meanwhile, the device is low in use and operation costs, and good in generalizability, water resources can be saved, and the water use cost of residents also can be reduced. The classified recycling and reutilization system is simplein structure, is convenient to use, is safe and reliable, is low in cost, is low in energy consumption, and is obvious in sewage separation effect.

The invention discloses an unattended fitness instructor remote teaching method. The method at least includes the following steps: step 1, instructor upload videos to a server after verifying identities, and users select target instructors; step 2, two-dimensional codes different in sum are displayed according to different grades of the instructors, and the users scan the two-dimensional codes to finish payment; step 3, a third-party payment system determines whether the users finish payment successfully; step 4, the instructors determine whether the users activate any fitness equipment, and guide the users to exercise in a remote manner; and step 5, the guiding time is up, and service ends. The instructors can have more students through an application, and the price is lower. The students can select desired exercise programs and fitting courses in a more convenient manner and at lower cost. Through unattended running of hardware, fitness equipment can be arranged closer to potential customers in places such as districts, schools and business buildings, and is lower in use cost and convenience.

The invention relates to the field of medical devices, and discloses an intelligent control device for clinical drainage assistance, which comprises a weight base assembly, a suspension assembly, a drainage adjustment assembly, a controller and a power supply assembly; in the course of drainage, the suspension assembly can provide support for a drainage bag, the weight base assembly can feedback the weight signal that reflects the change of the liquid in the drainage bag to the controller, and the drainage adjustment assembly includes two rolled pipe mechanisms, the working states of which areregulated by the controller. Through a roll, the on and off of the drainage pipe can be controlled and the flow velocity of the efflux can be adjusted. Through the matching of two rolls, the necessary negative pressure for the negative pressure drainage can be provided. The intelligent control device is intelligently designed, and can achieve automatic control of timing drainage, quantitative drainage and constant speed drainage by combining a prior drainage assembly, and the safety and stability of drainage operation are improved. The device has two drainage modes: normal pressure drainage and negative pressure drainage, which can meet most clinical drainage requirements.

The invention relates to the technical field of building engineering, in particular to a spray type dust removal device for building construction. The device comprises a PLC control box, a tractor, a detection assembly, a fog gun assembly and a dust removal assembly. Clean water mist can be sprayed out by a conical pipe, and meanwhile, dust in air sucked by the conical pipe can be filtered and collected into a dust collection box through cooperation of the dust removal assembly and a sweeping assembly, so that the total amount of dust in a construction area is effectively restrained; therefore, the air quality of the construction area can reach the standard all the time without frequent and long-time work of the purification assembly, and a better dust removal effect is achieved.

The invention relates to a grease oxidation degree fast detection method and a grease oxidation degree fast detection testing box prepared on the basis. The method is based on a Kreis test, namely the color development reaction of grease oxidation secondary decomposed products and phloroglucinol. By adjusting the ratio of an added acid solution to an added phloroglucinol solution, reaction speed can be greatly increased, color development stability can be greatly improved, and the defect that an existing test is not stable is overcome. The layering speed is greatly increased, a clarified and transparent colorimetric layer can be fast obtained, and interference of oil sample contrast color is reduced. Besides, the concentration of the acid solution in use can be greatly reduced, operation is safer, and pollution of waste to the environment is reduced.

Disclosed is a petroleum drilling top drive safety valve protecting joint. According to the petroleum drilling top drive safety valve protecting joint, a joint body is in a round tube shape, and both ends of the joint body are provided with threads; the middle of an internal hole is provided with a small-diameter section, which is radially upwards provided with two symmetric threaded holes, and screws are mounted inside the threaded holes; the inside of the joint body is provided with a filter tube, the upper outer circumferential surface of the filter tube is provided with two symmetric inverted L-shaped grooves matched with the cylindrical sections at the tail ends of the screws to form a rotary positioning structure; the lower outer surface of each inverted L-shaped groove is provided with a ring groove, a sealing member is arranged inside the ring groove and matched with the small-diameter section of the internal hole. The petroleum drilling top drive safety valve protecting joint is of an integrated structure, and the filter tube is directly mounted inside the protecting joint, so that the petroleum drilling top drive safety valve protecting joint is simple and compact in structure, high in reliability, convenient to operate and use and long in service. By applying the petroleum drilling top drive safety valve protecting joint, a filter joint for filtering slurry between the lower portion of a safety joint and a drill pipe can be saved, the slurry quality can be improved, the service life of a top drive safety valve can be prolonged, and the drilling risk and the production cost can be reduced.

The invention provides a device and method for improving the interior quality of a casting blank through removing of the superheat degree of molten metal in the casting process and generating of a large number of free isometric crystal nucleation cores in the liquid phase to homogenize casting blank solidification. By means of the device and method, the superheat degree of the molten metal can be obviously reduced, and the ultra-cold degree is formed in part of the casting blank liquid phase so that a large number of isometric crystal nucleation cores can be generated; meanwhile, the multiple isometric crystal nucleation cores move into the liquid phase of the center of the casting blank in a vibration mode, a rotation mode and other modes to enable the interior of the casting blank to be rapidly and evenly cooled and improve the interior quality of the casting blank, and accordingly the requirement for the quality of special fracture surfaces (the interiors of large continuously-cast circular blanks and large casts), special steel grades (silicon steel, automobile plates and the like) and the like can be met. According to the device and method, repeated utilizing can be achieved, equipment cost and the using and maintaining cost are low, and the production cost cannot be increased basically while the interior quality of the casting blank is improved.

The invention provides a railway sleeper capable of being heated which comprises a sleeper body, a heating carrier, a control power source and a temperature sensor. The sleeper body is made of a fiber cement composite. The fiber cement composite comprises, by weight, 55% to 65% of fiber materials. The heating carrier is arranged on the sleeper body, installed on the upper side of the sleeper body and connected with the control power source. A heating circuit is arranged in the heating carrier. The temperature sensor is further arranged on the sleeper body. According to the railway sleeper, the safety running level of a train is increased, it is guaranteed that the train is not threatened by freezing and snowing disasters, the transportation efficiency of a railway is improved, the railway sleeper can save more energy and is environmentally friendly, and a contribution to protection of ecological resource balance is made.

The invention relates to the technical field of a fan and particularly relates to a dual-pressure fan, comprising a power device, a high-pressure fan and a low-pressure fan, wherein driving forces of the high-pressure fan and the low-pressure fan are provided by the power device; the dual-pressure fan can respectively provide compressed gas and lower-pressure gas during operation. The power device is respectively in coaxial connection with the high-pressure fan and the low-pressure fan by the output shaft of the power device. The dual-pressure fan has the advantages of scientific and reasonable structural design and compact structure and can solve a problem that an existing fan cannot respectively provide compressed gas and low-pressure gas for gas equipment. By single power device, the output shaft of the power device conducts rotary motion under driving of external energy sources, thereby driving the high-pressure fan and the low-pressure fan; compressed gas and low-pressure gas at respective air outlet are respectively output; the dual-pressure fan has the characteristics of simple installation and control and the low purchasing and using cost.

The invention provides a glass anti-theft device consisting of an infrared transmitting tube, an infrared receiving tube, an optical fiber, a normally closed relay and an alarm, wherein the optical fiber is adhered to the lower side of glass in a wave shape and clamped between two layers of glass; the transmitting end of the infrared transmitting tube and the receiving end of the infrared receiving tube are arranged on two ends of the optical fiber, and the transmitting end of the infrared transmitting tube does not face toward the receiving end of the infrared receiving tube; infrared rays transmitted by the infrared transmitting tube after optical fiber breakage cannot enter into the infrared receiving tube; the normally closed relay is connected in series in a circuit in which the infrared receiving tube is positioned; the alarm is connected in a circuit controlled by the normally closed relay; when the infrared receiving tube is conducted, the normally closed relay is disconnected from the power supply of the alarm; and when the infrared receiving tube is not conducted, the normally closed relay is connected with the power supply of the alarm, and the alarm instantly starts alarming. The glass anti-theft device is simple in structure, can be installed on common glass, and is low in installation and use costs and good in reliability.

The invention relates to a tower type focusing honeycomb solar heat power generation steam generating boiler. The solar energy is inexhaustible and is a finally dependable and reproducible clean and cheap natural energy source for humans in the future. The invention adopts an objective, practical and practicable integrative technology in order to really combine and apply the solar energy resource and steam power and not to complicate the technology, and the poor fluid temperature difference in nature is particularly used to be combined with the technology to realize a solar heat power generation idea. The solar energy which is used as an eternal, unpolluted and reproducible natural energy source is benefit to humans and serves for people.

The invention relates to the field of medical devices, and discloses a clinical drainage control device, which comprises a weight base assembly, a suspension assembly, a drainage adjustment assembly,a controller and a power supply assembly; in the course of drainage, the suspension assembly can provide support for a drainage bag, and the weight base assembly can feedback a single which can reflect the change of the liquid in the drainage bag, to the controller. The drainage adjustment assembly includes a first rolled pipe mechanism and second rolled pipe mechanism which are regulated by the controller. A negative pressure drainage process can be controlled by using the first rolled pipe mechanism and the second rolled pipe mechanism, and a normal pressure drainage process can be controlled by using the first rolled pipe mechanism. The clinical drainage control device is intelligently designed, can achieve automatic control of timing drainage, quantitative drainage and constant speed drainage in conjunction with a prior drainage component. The device can improve the safety and stability of the drainage operation. The device has two drainage modes: normal pressure drainage and negative pressure drainage. The device can satisfy most clinical drainage requirements.

The invention discloses a shaking-table cross flow belt concentrator, which is provided with a frame, a head wheel, a tail wheel and conveyer belts, wherein the head wheel, the tail wheel and the conveyer belts are arranged on the frame; a tail wheel end is provided with an ore concentrate flushing drain pipe and an ore concentrate receiving groove; the low side of each conveyer belt is provided with a tailing groove; the high side of each conveyer belt is provided with an ore feeder and a flushing water pipe; the frame is supported on a sliding mechanism and moves in a reciprocating way; thehead wheel end, the tail wheel end or the lower part of the frame is provided with a push-pull rod connected with a machine head; the machine head is a mechanism with reciprocating push-pull effort; each conveyer belt is provided with a reciprocating bar; the frame is provided with a lifting plate inserted into a space between adjacent conveyer belts; multiple rows of multi-layer conveyer belts can be arranged on the same frame; and the machine head is driven by a speed regulating motor. In the invention, the motion characteristic of a shaking table is organically combined with a cross flow belt concentrator, and a revolving gear at the bottom of the frame is eliminated, so that a combination effect is achieved by using two motion characteristics. By adopting the concentrator, the concentrating indexes of heavy metal ores such as tin, tungsten, lead and the like of over 10 microns can be greatly increased, the concentration belt separation is very remarkable, the recovery ratio is up to 85 percent in maximum, the concentration ratio is as high as 10-40 times, and the handling capacity is 10-25 tons/set.

The present invention relates to the field of medical devices, and, more particularly, to a portable system for testing one or more lung functions, and novel techniques for noninvasive determination of one or more pulmonary function characteristics.