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210results about How to "Simple structure and operation" patented technology

Digital isothermal nucleic acid detecting device and detecting method thereof

The invention provides a digital isothermal nucleic acid detecting device which comprises a micro-fluidic chip, a temperature control system and a pressure driving system. A microfluidic channel for microsphere forming and a reaction section for nucleic acid amplification are formed by the micro-fluidic chip through sequential laminating of a substrate layer, a channel layer arranged on the substrate layer and a cover plate layer arranged on the channel layer. The temperature control system comprises a lower press plate for applying pressure to the substrate from bottom to top and an upper press plate for applying pressure to the cover plate layer from top to bottom, and temperature sensing chips and temperature control heating elements for heating the reaction section are arranged in the upper press plate and the lower press plate. The pressure driving system is connected to the micro-fluidic chip and used for applying pressure to the channel layer in the micro-fluidic chip so that liquid to be detected can flow into the reaction section from the inflow end. According to the scheme, microsphere preparation and nucleic acid amplification and detection are integrated through the digital isothermal nucleic acid detecting device and the detection method, and the advantages of being high in sensitivity and the like are achieved.
Owner:SUZHOU INST OF BIOMEDICAL ENG & TECH CHINESE ACADEMY OF SCI

Local pressure controllable planar optical element polishing device

The invention discloses a local pressure controllable planar optical element polishing device, and relates to an optical element polishing device. The device is provided with a connecting shaft, a base, a sealing cylinder, a magnetorheological device disc, magnetorheological fluid, a rubber film, an embedded control device and a clamping jaw; one end of the connecting shaft is fixed on the upper surface of the base, the lower surface of the base is provided with a clamping jaw fixing groove, and the sealing cylinder is fixed on the lower surface of the base; the magnetorheological device disc, the magnetorheological fluid and the rubber film are arranged in the sealing cylinder; a regional magnetic field adjusting device is fixed in the magnetorheological device disc; the bottom center of the magnetorheological device disc is provided with a small hole, and the small hole is connected with a lead through hole in the center of the base; a lead of a connecting coil in the regional magnetic field adjusting device and a micro motor power wire pass through the small hole and the lead through hole on the base and are connected with the embedded control device; and a layer of magnetorheological fluid is sealed between the magnetorheological device disc and the rubber film at the bottom of the sealing cylinder. The device can realize quick convergence of surface shape error of a workpiece.
Owner:XIAMEN UNIV

Automatic portable paper-based micro-fluidic photoelectric detection device and method of pesticide residue

The invention belongs to the field of crop pesticide residue detection and biochemical detection, and discloses an automatic portable paper-based micro-fluidic photoelectric detection device and method of pesticide residue. A paper-based chip carrying an indophenol acetate reagent in a first test paper box is conveyed by a chip replacing and conveying belt to a chip installing strip, a paper-based chip carrying an acetylcholin esterase reagent in a second test paper box is conveyed by a chip outgoing and conveying belt to a lower installing strip of an acetylcholin esterase paper-based micro-fluidic chip; a reagent enters a sampling tank through a sampling port, enters an acetylcholin esterase fixed groove under the effect of a paper-based chip sampling channel and is mixed with the acetylcholin esterase; the chip installing strip is driven to move downwards by pressing a component, so that the indophenol acetate reagent and the acetylcholin esterase reagent are in full contact with each other and generate color reaction, and a color region is detected by a photoelectric detection device. The automatic portable paper-based micro-fluidic photoelectric detection device and method are based on an enzyme inhibition reaction principle, obviously improve the detection resolution and sensitivity, and realize an automatic process from inputting a sample to be detected to displaying the amount of pesticide residue.
Owner:JIANGSU UNIV

Continuous coating device

The invention discloses a continuous coating device. The continuous coating device comprises a bottom plate; a protective cover is fixedly connected with the upper surface of the bottom plate and is internally provided with a first rotating motor; the bottom end of the first rotating motor is fixedly connected with the upper surface of the bottom plate; the output end of the first rotating motor is fixedly connected with a supporting plate; the lower surface of the supporting plate is fixedly connected with a supporting rod; the bottom end of the supporting rod is fixedly connected with a universal wheel; a workpiece fixing mechanism is fixedly arranged on the upper surface of the supporting plate; an electric pushing rod and a material storing box are perpendicularly and fixedly connectedwith the upper surface of the bottom plate; the left side face of the material storing box is provided with a groove which is connected with a third fixing block in a sliding manner; and the left side face of the third fixing block is fixedly connected with a spraying head. The continuous coating device is easy to operate, saves time and labor, is convenient, fast and efficient, improves the workpiece fixing efficiency, can achieve continuous coating of workpieces, improves the coating quality, improves the workpiece coating efficiency and lowers the work intensity for coating personnel.
Owner:张耀忠

Leakage drainage structure of waterproof curtain

The invention provides a leakage drainage structure of a waterproof curtain. The structure is arranged on a foundation pit leaking part and a supporting structure to construct. The structure comprises a hole body arranged in the foundation pit leaking part, wherein a drainage pipe is arranged in the hole part and comprises a needle part section with a screw thread at the end part, an extended connection section and an end part section which are connected by a connection barrel through the screw thread; an inverted filtering water layer is arranged at the periphery of the needle part section; a plugging section is arranged at the periphery of the extended connection section and is used for plugging; a spherical valve is arranged on one side of the end part section and leaked water of the leaking part is discharged by the spherical valve. The leakage drainage structure has the effects that the structure is simple to operate, low in construction cost and rapid in construction speed, and can be used for discharging a water body of the leaking part of the waterproof curtain in time, reducing the pressure of water and soil of the leaking part, excluding dangerous cases as soon as possible and guaranteeing the safety of a foundation pit; meanwhile, the drainage pipe can be repeatedly turned over and used so that the energy-saving effect is realized.
Owner:天津一建建筑工程有限公司

Conveniently loading twin-screw extruder

The invention discloses a conveniently loading twin-screw extruder which comprises a rack. The upper part of the rack is fixedly connected to a supporting seat through a connecting rod, a conveying motor is mounted in a U-shaped slide, a rotating shaft is rotatably mounted on one side of the U-shaped slide through a supporting bearing, a first spring is connected to the rotating shaft in a sleeving manner, one side of the U-shaped slide is fixedly connected to an insertion rod, a second spring is connected to the insertion rod in a sleeving manner, a screw is thread-mounted on a fixed plate, one end of the screw is fixedly connected to a bushing, an adjusting hand wheel is fixedly mounted at the other end of the screw, a sealing bearing is fixedly mounted on the rotating shaft, a piston block is connected to the sealing bearing in a sleeving manner, and one end of the rotating shaft is fixedly connected to a spiral conveying blade. By means of resetting and pressure balancing characteristics of the springs, the conveniently loading twin-screw extruder feeds materials continuously and stably, is simple in structure and easy to operate and implement and is convenient to adjust the feeding pressure reasonably according to an actual production condition, so that the service life of the conveying motor is prolonged.
Owner:新沂天晟新材料有限公司

Multifunctional body-building chair and use method

The invention discloses a multifunctional body-building chair and a using method. The multifunctional body-building chair includes a chair seat, a backrest, chair feet, a pair of L-shaped movable armrests and a group of torsion spring mechanisms; the two ends of the movable armrests are respectively provided with an operation handle and a plug vertical to the movable armrest; the movable armrests are inserted at the two sides of the chair seat by the plugs; the operation handle is blocked on the back surface of the backrest; one group of torsion spring mechanisms have two torsion spring mechanisms; the two torsion spring mechanisms are respectively fixed at the front end at the two sides of the chair seat; jacks matched with the plugs of the movable armrests are arranged on the two torsion spring mechanisms. The L-shaped movable armrests after being taken down are inserted into the jacks, thus being capable of changing a common chair into a body-building chair to carry out exercise at any moment and any place, thus not only saving space, but also being simple and convenient; the hexagonal prism plugs and the torsion spring mechanisms arranged at a plurality of locations can conveniently adjust the angles of the movable armrests and change the parts and modes for exercise, thereby realizing the goal of exercise with full-orientation, a plurality of forms and a plurality of funs; the whole structure is conveniently used; the cost is low and the multifunctional body-building chair is applicable for being used at home or in a working environment.
Owner:曾文华

Saliva DNA (deoxyribonucleic acid) collection and storage bottle

The invention discloses a saliva DNA (deoxyribonucleic acid) collection and storage bottle. The saliva DNA collection and storage bottle comprises a storage bottle body and a collection cap matched with the bottle body. The collection cap comprises a connection portion, a hollow collection portion and a sampling portion, the hollow collection portion is positioned at the front end of the connection portion which is connected with the storage bottle body, and the sampling portion is positioned at the front end of the collection portion. The end face of the connection portion is provided with a liquid flow hole, and the collection portion and the storage bottle body are communicated through the liquid flow hole. A surface, connected with the collection portion, of the sampling portion is provided with a liquid inlet, and the edge of the liquid inlet is provided with a flow guide structure. The saliva DNA collection and storage bottle has the advantages that firstly, by the aid of the sampling portion fitting a mouth shape, sampling is facilitated, saliva is less prone to splashing all around, and sanitation and convenience are realized; secondly, by arrangement of the multi-section collection cap and a transition structure, a sample can be well protected hermetically, leakage is avoided, and accordingly sample contamination probability is greatly lowered; thirdly, simplicity and convenience in integral structure and operation and suitableness for extensive popularization and utilization are realized.
Owner:ZHEJIANG SORFA MEDICAL PLASTIC

Overturn-preventing falling-preventing attached lifting scaffold

The invention discloses an overturn-preventing falling-preventing attached lifting scaffold, comprising a frame body and a guide base. The rear side surface of the frame body is provided with at least two overturn-preventing lifting rails. The overturn-preventing lifting rail comprises guide rail components and support pillars supported between the guide rail components. The front side surface of the guide base is provided with an overturn-preventing guide wheel assembly cooperated with the guide rail components. The lower side surface of the guide base is provided with a falling-preventing assembly cooperated with the support pillars. When the frame body goes up and down, the rails move up and down along the guide wheels. The guide wheels prevent the rails from offset, so that the frame body goes up and down in a straight line. In a lifting process, if an accident occurs and the frame body falls down in a normal speed, a falling-preventing block would swing to the outer side of the support pillars by self-weight, and does not block or support the support pillars, and the frame body can fall down normally, if the frame body falls down in unnormal speed, the falling-preventing block does not have enough time to swing between the support pillars, so the falling-preventing block blocks and supports the support pillars, thereby effectively preventing the frame body from falling. The scaffold integrates overturn prevention and falling prevention, and structure and operation are simplified.
Owner:ZHONGYIFENG CONSTR GRP

Semiautomatic electronic lock with dissociation protection

The invention discloses a semiautomatic electronic lock with dissociation protection. The semiautomatic electronic lock comprises a lock shell. A main spring bolt assembly, a clutch and a latch bolt are arranged on the lock shell. A latch bolt limiting part is further hinged to the lock shell. The latch bolt limiting part comprises a limiting portion, and the clutch is sleeved with an outer clutchblock. The main spring bolt assembly comprises a motor, a verifying unit and a main spring bolt, the output end of the motor is in transmission connection with the main spring bolt, and the clutch issleeved with a square steel rotating shaft. The square steel rotating shaft is provided with a first rotating shaft stirring foot, and the square steel rotating shaft is further movably provided witha clutch pin. An insertion groove is formed in the clutch, and the clutch pin is inserted in the insertion groove to achieve linkage of the square steel rotating shaft and the clutch. A clutch pin reset spring is further arranged in the square steel rotating shaft. A clutch push part is hinged to the lock shell, and the clutch push part is in transmission connection with the output end of the motor. By means of the semiautomatic electronic lock, dissociation between a door handle and the structure in the lock body is achieved, and the antitheft performance is good.
Owner:浙江威欧希科技股份有限公司

General type CNC precision machining jig base

The invention relates to the technical field of CNC precision machining jigs, and discloses a general type CNC precision machining jig base. The general type CNC precision machining jig base comprisesa base, wherein the left side and the right side of the top of the base are fixedly equipped with limiting plates. According to the general type CNC precision machining jig base disclosed by the invention, a regulating rod, a clamping plate and a regulating plate are arranged, the regulating rod can be in threaded connection to a fixed plate by rotating the regulating handle, so that the regulating rod can move up and down; while the regulating rod moves upwards, the product clamping plate can be dismounted, and product clamping plates of different specification products can be replaced and are placed below the clamping plate; and the regulating handle is rotated, so that the clamping plate is in contact with the product clamping plate until the product clamping plate is fixed. The general type CNC precision machining jig base is simple in operation, is fewer in structure, can avoid using a relatively complex structure to achieve a relatively simple effect, reduces the cost of a user,also can be convenient for replacing the product clamping plate, and is more beneficial for use of the user.
Owner:东台东之达电子有限公司
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