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43results about How to "Solve the problem that is not easy to take out" patented technology

Method for removing salt from antimicrobial lipopeptide solution in low temperature refrigeration environment

ActiveCN105001303ATo achieve the purpose of concentrationAchieve the purpose of purificationPeptide preparation methodsSlurryImpurity
The invention relates to a method for removing salt from an antimicrobial lipopeptide solution in a low temperature refrigeration environment. The method comprises 1, carrying out bacillus amyloliquefaciens fermentation for antimicrobial lipopeptide preparation, filtering the fermentation broth, and removing bacteria so that a clear liquor is obtained, 2, feeding diluted hydrochloric acid into the clear liquor, carrying out standing at a room temperature, and removing a supernatant so that slurry-form fluid is obtained, 3, adding an extractant into the slurry-form fluid, carrying out uniform stirring, carrying out extraction and centrifugation, and carrying out microfiltration by an organic membrane to obtain filtrate, and 4, carrying out crystallization on the filtrate at a temperature of -25 to -10 DEG C, and carrying out microfiltration to remove crystals so that an antimicrobial lipopeptide solution is prepared. In a low temperature refrigeration storage environment, the inorganic salt is fully precipitated from the extraction system, and the organic solution subjected to precipitation and microfiltration does not crystallize in low temperature refrigeration storage so that the problem that impurity salts produced by the existing antimicrobial lipopeptide preparation process are removed difficultly is solved.
Owner:山东华辰制药有限公司

Multifunctional cooking pot

The invention relates to a multifunctional cooking pot. The multifunctional cooking pot comprises a pressure pot cover, a pot body and a seal ring arranged between the pressure pot cover and the pot body. The pressure pot cover comprises a fixing board, a cover board, a pressing board, a handle, a plurality of buckles and a plurality of transmission mechanisms used for connecting the buckles and the handle. A shell of the pressure pot cover is formed by the fixing board and the cover board. The pressing board is arranged between the fixing board and the cover board. The handle comprises a cam base and a handheld portion connected to the upper portion of the cam base. The lower portion of the cam base penetrates through the cover board and the pressing board and is rotationally connected to the fixing board. A plurality of lugs extending outwards are arranged on the portion, between the cover board and the pressing board, of the cam base in the circumference direction and an arc through groove is formed in each lug; the buckles are arranged at the edge of the fixing board in the circumference direction and connected with the handle through the transmission mechanisms located between the pressing board and the fixing board; each transmission mechanism comprises a sliding shaft, a sliding sheet and a guide post.
Owner:THE QUARTERMASTER EQUIPMENT RESEARCH INSTITUTE OF THE GENERAL LOGISITIC DEPARTME

Memory alloy embracing type clavicle connector extractor

The invention provides a memory alloy embracing type clavicle connector extractor capable of greatly saving operation time and enabling an operation to be easy and convenient.When the extractor is used for taking out a clavicle connector, the two ends are opened simultaneously, and the clavicle connector can be taken out in one time.The memory alloy embracing type clavicle connector extractor comprises a support, the support comprises a left support body and a right support body which are connected through a threaded shaft, a boss is arranged at the lower end of the threaded shaft, the left support body and the right support body are installed on the outer sides of the threaded shaft in a sleeving mode, the two sides of the left support body and the two sides of the right support body are each provided with extracting hooks which are symmetrical about a hinge pin, torsional springs are arranged between the extracting hooks and the support bodies, a right-hand thread is formed in the outer side of the upper portion of the threaded shaft, the threaded shaft is hollow and is internally provided with a left-hand rectangle thread, the outer side of the upper portion of the threaded shaft is connected with a sleeve thread, a rotating rod is installed in a sleeve in a sleeved mode, the lower end of the rotating rod is in thread connection with the rectangle thread inside the threaded shaft, the lower end of the rotating rod is connected with a left pressing plate and a right pressing plate which are located below the left support body and the right support body respectively, and the left pressing plate is movably connected with the right pressing plate.
Owner:LANZHOU SEEMINE SMA CO LTD

Plate stamping device

The invention discloses a plate stamping device. The stamping device comprises a stamping platform, an upper die fixing part is arranged on the stamping platform in a sliding manner, an upper die is installed on the upper die fixing part, a lower die is installed on the stamping platform, a hydraulic cylinder is fixed to the stamping platform, and an output shaft of the hydraulic cylinder is fixed to the upper die fixing part. Limiting pieces which are symmetrically distributed are arranged on the upper die fixing part and the stamping platform in a sliding manner, the limiting pieces on the upper die fixing part are located on the upper die fixing part and clamped on the upper die in a sliding manner to limit the upper die, and the limiting pieces on the stamping platform are located on the stamping platform and clamped on the lower die in a sliding manner to limit the lower die; and supporting pieces distributed in an array manner are installed on the lower die, first elastic pieces are connected between the supporting pieces and the lower die, and a driving piece used for jacking up the supporting pieces is fixed to the stamping platform. According to the stamping device, the supporting pieces are jacked up through the driving piece, and the problem that a plate is not easy to take out after stamping is solved.
Owner:ANHUI UNIV OF SCI & TECH

Temperature-controllable magnetic stirrer and working method thereof

The invention discloses a temperature-controllable magnetic stirrer which comprises a base, a motor, a magnet bracket, an objective table, a bracket assembly, a stirring body, a stainless steel pot body and a temperature sensor; a motor and a magnet bracket are arranged in the base; the objective table is arranged on the base; the stainless steel pot body is arranged on the objective table, a plurality of reaction cavities are formed in the stainless steel pot body, heating wires are arranged on the outer walls of the reaction cavities, a sliding rail is arranged on the base, the support assembly is slidably arranged on the sliding rail, a plurality of stirring bodies and temperature sensors are arranged on the support assembly, and a temperature controller, a rotating speed adjusting knob, a power switch and a heating switch are arranged on the front side of the base; a plurality of stirring cups containing liquid can be used for simultaneously heating the liquid in the stirring process; the stirrer is arranged in the reaction cavity, so that the stirring cup is not liable to moving in the rotating process of the stirrer, and the stirring body located above the stirring cup can beconveniently taken out of the stirring cup after stirring is finished, and thereby the problem that the stirrer is not prone to being taken out of viscous liquid is solved.
Owner:SUZHOU BEIKAI BIOCHEM EQUIP

Grinding and riveting clamp

The invention provides a grinding and riveting clamp. A clamping groove M and a clamping groove N are formed in a cushion block M and a cushion block N respectively and are opposite. The left end of the cushion block M and the left end of the cushion block N are connected through a movable bolt A. One end of the movable bolt A is movably arranged on the cushion block N through a pin B, and the other end of the movable bolt A is arranged in a clamping groove in the left end of the cushion block M and sleeved with a locking nut A. According to the grinding and riveting clamp, the two ends of the cushion block M and the two ends of the cushion block N are locked and fixed through screws and nuts instead of manual work, and therefore the operation dangers are reduced for operators. A gap is reserved between the cushion block M and the cushion block N. After the locking nut is released, the cushion blocks are separated when force is exerted through the gap between the two cushion blocks so that a part can be taken out, and the problem that the cushion blocks can not be easily taken out is solved. The clamp is simple in structure and easy to machine, workpieces can be more easily and rapidly assembled and disassembled when the grinding and riveting clamp is used on a bench drill device, and the production efficiency is improved.
Owner:GUIZHOU TIANYI ELECTRICAL

High-moisture-content soil vibration triaxial test sample preparation method and sample preparation device

The invention relates to the related technical field of tests, and discloses a high-moisture-content soil vibration triaxial test sample preparation method and a sample preparation device. The high-moisture-content soil vibration triaxial test sample preparation device comprises a fixed base, a movable base matched with the fixed base is movably installed on one side of the surface of the fixed base, and locking rods are movably installed on the two sides of the fixed base correspondingly; pins are movably connected to the two sides of the top end of the fixed base correspondingly, the movable base is fixedly connected with the fixed base through the pins, a three-section mold is movably installed on the inner wall of the movable base, a top base is movably installed at the top end of the three-section mold, driving handles are movably installed on the two sides of the top base, and a compactor is movably installed at the top end of the top base. The movable base and the fixed base are convenient to disassemble through the pins, so that the movable base and the fixed base can be disassembled from the characteristic of high-water-content soil, layered sample compaction is finally achieved, and the problems that a soft sample is difficult to prepare and difficult to completely take out are solved.
Owner:NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER

Outdoor stalk incineration device and method convenient for clearing dust

The invention discloses an outdoor stalk incineration device convenient for clearing dust. The outdoor stalk incineration device convenient for clearing dust comprises an incineration furnace body, wherein a top plate is fixedly connected between tops of two sides of the inner wall of the incineration furnace body; the inner part of the top plate is fixedly connected with a thick tube; the bottomend of the thick tube communicates with a filter cavity; a first filter screen is fixedly connected inside the filter cavity; and slide rods are fixedly connected between tops and bottoms of the two sides of the inner wall of the filter cavity. The invention relates to the technical field of stalk incineration equipment. According to the outdoor stalk incineration device convenient for clearing dust disclosed by the invention, a brush plate, a brush, a top plate, a movable plate, a first threaded rod and a stable plate are matched, so that the brush plate can drive the brush to perform dust clearing on the bottom of the filter screen, the problem that dust is adsorbed into mesh holes of the filter screen and is not liable to take out is solved, use efficiency of the incineration furnace body is improved, normal use of the filter screen is guaranteed, and follow-up use of the stalk incineration device is more convenient.
Owner:威海君祥企业管理咨询有限公司

A storage box with the functions of liquid nitrogen cryopreservation and oct embedding of rat brain

The invention relates to a preservation box with rat brain liquid nitrogen cryopreservation and OCT embedding functions. The preservation box comprises a preservation box body which is a cylinder. A part of the internal main space of the preservation body that contacts a rat brain sample is sterile. The length of the preservation box body is 1.2 times that the length of an adult rat brain. The cross-section area of the preservation box body is 1.5 times that the cross-section area of a rat brain. A sterile sample slot is arranged in the preservation box body. A floating base is connected under the preservation box body. The center of the floating base is protruding downwards, and the periphery of the floating base is upturned. A sample marking reserved zone is arranged on the floating base. A transverse reserved seam and a longitudinal reserved seam are arranged on the preservation box body. A transverse easy-pulling string and a longitudinal easy-pulling string are respectively arranged in the transverse reserved seam and the longitudinal reserved seam. With the preservation box, one-stop processing of rat brain sampling and preservation, liquid nitrogen quick freezing and OCT embedding can be realized, such that experimenter labor efficiency can be improved, and phenomena of sample damage and experimental result error caused by improper preservation tools are reduced.
Owner:新汉方(河南)生命科技有限公司

A foam molding energy-saving ejector device and production method

The present invention relates to the technical field of foaming devices, in particular to a foam molding energy-saving ejector and production method. Aiming at the problem that the foamed body formed in the existing foaming device is not easy to take out, the following proposal is proposed, which includes a box body , the bottom of the box is provided with a groove, the groove is provided with a top plate, the bottom of the top plate is provided with a plurality of third limit columns, the outside of the box is provided with a bottom plate, and the inner cavity of the box is provided with two push plates. One side of the two push plates is fixedly connected with a push bar, and the sides of the two push plates away from each other are provided with a rotating plate and a connecting column, and one side of the rotating plate is provided with a through groove, and the push bar is slidably connected with the through groove , there are two supporting plates and two second connecting rods between the box body and the bottom plate, one end of the second connecting rod is slidingly connected with the bottom plate, and the other ends of the two second connecting rods are fixedly connected with a connecting shaft, the two One end of each connecting shaft is fixedly connected with a first connecting rod. The invention solves the problem that the foamed body formed in the existing foaming device is not easy to take out.
Owner:安徽艾普塑料科技有限公司

A butt welding positioning fixture and its application method

The invention relates to a butt-welding locating clamp and a use method thereof. A locating assembly in the butt-welding locating clamp comprises a locating seat and a locating combined piece for being connected with a part to be welded in a sleeving manner. The size of the interior of the part is matched with the size of the exterior of the locating combined piece. A first groove is formed in the upper end of the locating seat. The locating combined piece is arranged in the first groove and comprises a first wedge-shaped block and a second wedge-shaped block. At least one of the upper end face and the lower end face of the first wedge-shaped block is flush with at least one of the upper end face and the lower end face of the second wedge-shaped block. Pressing assemblies are distributed on the two sides of the locating combined piece and can press the outer side face of the part after the part is sleeved with the locating combined pace. A discharging block is provided with a through hole where the first wedge-shaped block or the second wedge-shaped block can penetrate. According to the butt-welding locating clamp and the use method, the first wedge-shaped block and the second wedge-shaped block can slide and fall off relative to each other after being knocked, and demolding is facilitated; and the part can be protected through the discharging block and prevented from being damaged when the first wedge-shaped block and the second wedge-shaped block are knocked, operation is convenient, and locating is reliable.
Owner:AECC AVIATION POWER CO LTD

Single-bearing-platform separated pier column expansion joint construction device and construction method

The invention discloses a single-bearing-platform separated pier column expansion joint construction device and a construction method. The single-bearing-platform separated pier column expansion jointconstruction device comprises an inner mould frame, wherein the inner mould frame is formed by two mould frames in a U-shaped frame structure, and two expansion joint steel plates are respectively and correspondingly laid between the two mould frames in the U-shaped frame structure, a finish rolling threaded steel bar is installed between the two expansion joint steel plates, an outer mould framesleeves the exterior of the inner mould frame, all structures related by the construction device are detachable, the multiple times of recycling of the device are realized, the economic cost is low,and the popularization and application are easy. The rigidity of the expansion joint steel plates is used, a phenomenon that the inner wall of an expansion joint is unsmooth while the expansion jointis filled with a foam board is avoided, and a problem that the foam board is not easily taken out because the foam board is adhered to concrete and reserved in the expansion joint is also solved. A width of the reserved expansion joint can be accurately determined through the expansion joint steel plates and the finish rolling threaded steel bar, after casting, the clamped finish rolling threadedsteel bar can be directly drawn out through a hydraulic jack, the operation is safe and convenient.
Owner:CR10BG NO 3 CONSTR

Water trap damage evaluation instrument for high temperature and high pressure tight gas reservoirs

The invention discloses an evaluation instrument for the damage of aqueous phase trapping of a high-temperature high-pressure tight gas reservoir. The evaluation instrument comprises a rock-core holder system, a liquid displacement system, a gas displacement system, a gas-liquid metering system and a data acquisition system, wherein the rock-core holder system comprises a rock-core holder 3, a confining pressure pump 4, a confining pressure sensor 14 and a temperature-rising / temperature-controlling device 21; the liquid displacement system comprises a liquid storage tank 12, a liquid metering pump 11 and a liquid displacement pressure sensor 18; the gas displacement system comprises a gas cylinder 1, an inlet pressure stabilizing tank 2, a pressure returning device 6 and a pressure returning stabilizing tank 10; the gas-liquid metering system comprises a gas-liquid separator 7, an electronic scale 8 and a gas flow meter 9; and the temperature-rising / temperature-controlling device 21 and the confining pressure sensor 14 and the like are connected with a computer 13 to form the data acquisition system. The evaluation instrument disclosed by the invention has the advantages that the automation degree is high, the function is complete, the damage process of the aqueous phase trapping of the tight gas reservoir under the operation links such as drilling, completion, workover and yield increase can be simulated, and the damage degree of the aqueous phase trapping can be evaluated.
Owner:SOUTHWEST PETROLEUM UNIV +1

Machining device and machining method for conical groove in surface of grooved pin

PendingCN113245390ARealize one-time molding processingHigh shape accuracyEngineeringMachine
The invention discloses a machining device and method for a conical groove in the surface of a grooved pin, and belongs to the technical field of machining. The machining device comprises a hydraulic machine used for applying pressure, an extrusion clamp used for clamping a workpiece and an extrusion tool installed in the extrusion clamp, wherein the extrusion clamp comprises a bottom plate which is arranged at the bottom end of the machining device and makes contact with a workbench, a base installed on one side of the bottom plate, an extrusion tool apron installed at the upper end of the base, a guide block installed at the upper end of the extrusion tool apron, a pressing handle connected to the interior of the base through a shaft and a movable guide sleeve arranged at the upper end of the guide block, through holes for placing workpieces are formed in the middle positions of the extrusion tool apron, the guide block and the movable guide sleeve, an extrusion cutter is installed on the outer sides of the through holes of the extrusion cutter holder and the guide block, and the device is used for machining the conical groove of the surface of the grooved pin. According to the machining device and machining method for the conical groove in surface of the grooved pin, one-time forming machining of the conical groove in the surface of the grooved pin is achieved, the shape and size precision of the conical groove is improved, and the phenomena that in the prior art, finished products are difficult to assemble, and scraps are generated and piled up are avoided.
Owner:HEBEI HUABEI DIESEL ENGINE

A multifunctional cooking pot

The invention relates to a multifunctional cooking pot. The multifunctional cooking pot comprises a pressure pot cover, a pot body and a seal ring arranged between the pressure pot cover and the pot body. The pressure pot cover comprises a fixing board, a cover board, a pressing board, a handle, a plurality of buckles and a plurality of transmission mechanisms used for connecting the buckles and the handle. A shell of the pressure pot cover is formed by the fixing board and the cover board. The pressing board is arranged between the fixing board and the cover board. The handle comprises a cam base and a handheld portion connected to the upper portion of the cam base. The lower portion of the cam base penetrates through the cover board and the pressing board and is rotationally connected to the fixing board. A plurality of lugs extending outwards are arranged on the portion, between the cover board and the pressing board, of the cam base in the circumference direction and an arc through groove is formed in each lug; the buckles are arranged at the edge of the fixing board in the circumference direction and connected with the handle through the transmission mechanisms located between the pressing board and the fixing board; each transmission mechanism comprises a sliding shaft, a sliding sheet and a guide post.
Owner:THE QUARTERMASTER EQUIPMENT RESEARCH INSTITUTE OF THE GENERAL LOGISITIC DEPARTME

A processing box with liquid nitrogen cryopreservation and oct embedding functions for rat spinal cord

The invention discloses a treatment box with rat spinal cord liquid nitrogen freezing storage and OCT (optimal cutting temperature) embedding functions. The treatment box comprises a treatment box body. The treatment box is characterized in that the treatment box body is a hollow cuboid; a part, in contact with a rat spinal cord sample, of an internal space of the hollow cuboid is aseptic; the length of the hollow cuboid is 1.2 times that of the adult rat spinal cord and the cross section area of the hollow cuboid is 2.5 times that of the rat spinal cord; an aseptic sample tank is arranged in the treatment box body; a floating fixed wing is connected to the lower part of the aseptic sample tank; the center of the floating fixed wing protrudes downwards and the periphery of the floating fixed wing warps upwards; a sample mark reserved region is arranged on the floating fixed wing; a transverse reserved gap and a longitudinal reserved gap are formed in the treatment box body; and a transverse easy-pull line and a longitudinal easy-pull line are arranged in the transverse reserved gap and the longitudinal reserved gap respectively. The treatment box is reasonable in structure; and the rat spinal cord can be subjected to one-stop treatment of sample storage, liquid nitrogen quick freezing and OCT embedding, so that the labor efficiency of experimental workers is improved and the phenomena of sample damage and experimental result errors caused by an improper storage tool are reduced.
Owner:新汉方(河南)生命科技有限公司

Electronic design soldering tin intelligent manufacturing and machining device

The invention relates to the technical field of electronic design and machining, and discloses an electronic design soldering tin intelligent manufacturing and machining device which comprises a connecting plate. A rotating piece is rotatably connected into the connecting plate, a supporting block is arranged on the outer side of the rotating piece, a first connecting shaft is fixedly connected tothe bottom end of the supporting block, and a sliding groove is formed in the bottom end of the first connecting shaft. A first connecting rod is slidably connected into the sliding groove, a first spring is fixedly connected to the bottom end of the first connecting shaft, and a fixing block is rotatably connected to the bottom end of the first connecting rod. According to the electronic designsoldering tin intelligent manufacturing and machining device, through connection of the connecting plate and the first spring, the advantage of being suitable for small factories is achieved, adaptability is high, good practicability and popularization performance are achieved, and the problem that a soldering tin ring is not easy to take out in soldering tin production in the prior art is solved;and the soldering tin ring can be intelligently pushed out in time when rolled to a certain perimeter, the cost is effectively reduced, and the practicability is improved.
Owner:南京瑞然峰电子商务有限公司

A method for desalting from antimicrobial lipopeptide solution using low-temperature freezing environment

The invention relates to a method for removing salt from an antimicrobial lipopeptide solution in a low temperature refrigeration environment. The method comprises 1, carrying out bacillus amyloliquefaciens fermentation for antimicrobial lipopeptide preparation, filtering the fermentation broth, and removing bacteria so that a clear liquor is obtained, 2, feeding diluted hydrochloric acid into the clear liquor, carrying out standing at a room temperature, and removing a supernatant so that slurry-form fluid is obtained, 3, adding an extractant into the slurry-form fluid, carrying out uniform stirring, carrying out extraction and centrifugation, and carrying out microfiltration by an organic membrane to obtain filtrate, and 4, carrying out crystallization on the filtrate at a temperature of -25 to -10 DEG C, and carrying out microfiltration to remove crystals so that an antimicrobial lipopeptide solution is prepared. In a low temperature refrigeration storage environment, the inorganic salt is fully precipitated from the extraction system, and the organic solution subjected to precipitation and microfiltration does not crystallize in low temperature refrigeration storage so that the problem that impurity salts produced by the existing antimicrobial lipopeptide preparation process are removed difficultly is solved.
Owner:山东华辰制药有限公司
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