16results about How to "Simplify operating procedures" patented technology

The utility model discloses a water quality standard solution titration device, including first container, liquid passage, solution container, water pump, control valve, flowmeter and colority detection subassembly, liquid passage is provided with two at least, and the one end of each titration tube is inserted to the above of first container, the liquid in solution container is made to flow into the liquid passage with the one end of each liquid passage away from titration tube intercommunication, water pump is communicated with liquid passage, and the liquid in solution container is dripped into first container under the drive of water pump through liquid passage and titration tube, control valve is arranged on titration tube, and colority detection subassembly is arranged above first container, water pump can drive solution to drip into first container through liquid passage and titration tube, replaces manual solution and drips into first container, realizes the automation, reduces the experimental error because of manual multiple comparison color, simplifies the operation procedure, and reduces the manual cost.

The invention provides a hydrocarbon generation simulation experimental instrument and a gas-liquid collection method and a cleaning method thereof. A gas-liquid separation tank, a telescopic pipe assembly, an evacuation protection valve, a bidirectional vacuum pump, a gas collecting bottle and a gas injection valve are connected in series along a main pipeline. A evacuation branch pipe is branched from the main pipeline between the evacuation protection valve and the bidirectional vacuum pump. The evacuation valve is connected in series to the evacuation branch pipe. A connecting pipe is connected between the gas collecting bottle and the main pipeline. A gas collecting pressure meter, a gas collecting valve and an automatic gas meter are connected in series to the connecting pipe. The gas collecting bottle is connected to a gas collecting bag soft tank through the gas collecting valve. A solvent branch pipe is also branched from the main pipeline between the bidirectional vacuum pump and the gas injection valve. A solvent valve is connected in series to the solvent branch pipe. A solvent flushing valve is connected in series to a branch pipe one at the end of the solvent branch pipe. The end of the branch pipe one is connected to a solvent collecting cold trap. A solvent injection valve is connected in series to a branch pipe two at the end of the solvent branch pipe. The end of the branch pipe two is connected to a solvent collecting tank. A heating resistor is arranged in the solvent collecting tank. A solvent recovery valve is connected between the solvent collecting tank and the solvent collecting cold trap.

The invention belongs to the technical field of medicine preparation, and particularly relates to a synthesis method and an intermediate of rosmeltirol. The method comprises the following steps: (1) mixing SM1, organic monobasic acid and inorganic acid in proportion, stirring and dissolving, dropwise adding a sodium salt solution, and then adding SM2 and a carboxylate solution for reaction to prepare an intermediate 1; (2) dissolving the intermediate 1 in an amide compound, adding potassium salt, heating for reaction, and purifying to obtain an intermediate 2; (3) dissolving the intermediate 2 in aromatic hydrocarbon, adding boride, and performing deprotection and purification to obtain an intermediate 3; and (4) dissolving the intermediate 3 in an organic sulfide, then adding SM3 and inorganic salt, and carrying out heating reaction and purification to obtain the rosimeltirome. The method provided by the invention has the characteristics of concise, efficient and safe synthesis of the rosmeltirol, reduces by-products, is helpful for improving the purity and stability of the product, avoids the use of expensive Grignard reagent and complex purification steps, and is more suitable for large-scale industrial production.

The present invention provides a method for controlling the segmented pressure relief and reinforcement of the tunnel roof based on double tunnel excavation, including: obtaining geological parameters of the coal seam roof; according to the geological parameters, drilling holes obliquely toward the coal seam roof at the side tunnel wall of the coal pillar in the second tunnel, so that the drilled holes pass through the direct roof of the first tunnel and extend into the basic roof of the mining face; based on the section where the drill hole located at the basic roof is located, hydraulic fracturing is performed on the basic roof; based on the section where the drill hole located at the direct roof is located, grouting reinforcement is performed on the direct roof. The present invention not only optimizes the fracturing and grouting operation procedures in terms of technology and improves the operation efficiency, but also can alleviate the influence of the high advanced support pressure and lateral support pressure caused by the difficulty of hard roof collapse on the stability of the tunnel surrounding rock, improve the structural integrity and bearing capacity of the local roof of the tunnel, transfer the stress above the coal pillar in the section to a certain extent, and achieve the purpose of controlling the deformation of the tunnel surrounding rock.

The hydraulic core mold device of the concrete hollow slab beam comprises a bottom plate, side plates, end molds and a mold core, the two end molds are erected on the bottom plate in a spaced mode and connected through the side plates, a forming cavity is defined by the end molds, the side plates and the bottom plate, the mold core is erected in the middle of the forming cavity, the mold core comprises two crescent-shaped mold plates arranged oppositely, and the crescent-shaped mold plates are arranged oppositely. The crescent formwork comprises an L-shaped connecting plate and two wing plates arranged up and down, the connecting plate is welded to the wing plates, and every two adjacent wing plates are connected through a hinge on the connecting plate. The whole structure is simple, the hydraulic cylinder is located on the end mold, operation procedures are simplified, and overhauling and maintaining are convenient; the middle supporting plate, the hinge seat and the wing plate of the crescent mold plate are integrally connected through the full-length linkage rod, on one hand, the number of the hydraulic cylinders can be greatly reduced, the mold core is expanded to form a cavity shape or retracted to form a folded shape, forming or demolding of the mold core is facilitated, and on the other hand, the stroke of the piston rod can be shortened by directly pushing the full-length linkage rod through the hydraulic cylinders.

The present invention discloses a fusion protein of Fel D1 and Fel D4 and its application. The present invention obtains the fusion protein of Fel D1 and Fel D4 by prokaryotic expression. The fusion expressed protein greatly simplifies the operation procedures in terms of inducing protein expression, purification, concentration and immunization, and reduces the economic cost. The present invention provides a method for preparing egg yolk antibodies. The egg yolk antibodies obtained by immunizing laying hens with fusion proteins can react with Fel D1 and Fel D4 respectively, and the titer is higher than that of a single antigen protein immunization group and a combined immunization group. The present invention also provides a method for preparing a functional cat food. Egg yolk powder is added to the cat food in a certain proportion. After feeding for a period of time, the content of Fel D1 and Fel D4 in the cat's hair and saliva is significantly reduced, and the cat food prepared by the fusion protein egg yolk antibody can resist Fel D1 and Fel D4 at the same time, and the blocking effect is significantly improved.

The utility model discloses a water storage box and refrigeration equipment, the water storage box comprises a water box main body and a water box cover, the water box main body is provided with a water storage cavity and a first opening communicated with the water storage cavity; the water box cover is used for being mounted on water utilization equipment; the water box main body is in sliding connection with the water box cover in a movable switching mode between a first matching position and a second matching position, and when the water box main body slides to the first matching position relative to the water box cover, a first opening of the water box main body is sealed and covered by the water box cover; and when the water box main body slides to a second matching position relative to the water box cover, at least part of the first opening of the water box main body is separated from the water box cover and is exposed. According to the water storage box provided by the utility model, the cleanliness can be ensured, and meanwhile, the operation procedure of adding water into the water storage box by a user can be simplified.

The application provides an AC-DC power supply test bed power distribution control system, comprising an AC power supply, a switching power supply, a DC power supply, a touch screen, a PLC, a communication interface conversion circuit, a frequency converter and a motor, wherein the AC power supply is connected with the switching power supply, the touch screen and the frequency converter respectively, the switching power supply is connected with the DC power supply, the touch screen, the communication interface conversion circuit and the frequency converter in sequence, the communication interface conversion circuit is connected with the frequency converter and the PLC respectively, and the frequency converter is connected with the motor; the I0.0 input port of the PLC is connected with a change-over switch to select a manual or automatic working mode for the test bed power distribution control system, the I0.1 input port of the PLC is connected with a start button to start the frequency converter of the test bed power distribution control system, the I0.2 input port of the PLC is connected with a stop button to stop the frequency converter of the test bed power distribution control system, and the I0.3 input port of the PLC is connected with an emergency stop button to control the stop of the test bed power distribution control system.

The utility model provides a releasing tool for plugging an oil pipe leakage point below a joint hoop by an oil pipe joint hoop, which comprises an upper central pipe, a sheath fixedly nested on the outer side of the upper central pipe, a positioning claw arranged in an interlayer between the upper central pipe and the sheath, a pin arranged on the upper central pipe, and a pin limiting rail arranged on the sheath and matched with the pin limiting rail. The lower end of the upper center pipe is connected with a lower center pipe through a middle center pipe, and a setting mechanism is arranged on the outer side of the middle center pipe and the outer side of the lower center pipe. The device has the advantages of being suitable for throwing and fishing in steel wire operation, simple and compact in overall mechanical structure, low in cost, simple in operation procedure, easy to operate and convenient for constructors to conduct field operation. The whole structure adopts a screw thread connection mode to adjust the plugging distance, and compared with a plugging releasing tool in the prior art, the plugging releasing tool has better adaptability and can be used according to various different conditions. And the inner drift diameter is relatively large, so that the later test operation is facilitated.

The utility model discloses a rolling type vacuum packaging machine which comprises a vacuum chamber, a vacuum meter, a water cooling water nozzle, a vacuum chamber air exhaust nozzle, a vacuum chamber stop valve, a pressurizing valve and a rack. The vacuum meter is installed on the vacuum chamber and used for monitoring the vacuum degree in the vacuum chamber. The water cooling water nozzle is arranged on the vacuum chamber and is used for providing cooling water to maintain the temperature of equipment; the vacuum chamber exhaust nozzle is connected to the vacuum chamber and is used for extracting air in the vacuum chamber; the vacuum chamber stop valve is installed on the vacuum system and used for controlling gas circulation between the vacuum chamber and the vacuum pump. The pressurizing valve is connected to the vacuum chamber and used for pressurizing the interior of the vacuum chamber; the rack is connected with the transmission mechanism and used for achieving transmission of mechanical motion. The vacuum packaging box is reasonable in structure, easy and convenient to operate, capable of effectively carrying out vacuum packaging on various objects, capable of prolonging the quality guarantee period and the fresh-keeping period and convenient to store and transport.

The utility model relates to the technical field of hydraulic engineering equipment, in particular to a guide vane lower end shaft dismounting tool. Comprising an abutting piece, a first positioning piece and a second positioning piece. The abutting piece is provided with a threaded rod opening and is provided with a first abutting end connected with the threaded rod opening and a second abutting end movably connected with the threaded rod opening. The second positioning piece and the second abutting end achieve smooth adjustment in the horizontal direction through the sliding groove, and the second positioning piece can be fixed to a certain position through the locking piece. The ends, away from the screw opening, of the first positioning face and the second positioning face vertically extend downwards and are provided with meshing sections, the meshing sections are connected with the positioning faces through arc transition, and the lower ends of the meshing sections further form an embedded section structure parallel to the positioning faces. According to the utility model, accurate positioning of the dismounting tool can be quickly realized.

The present invention belongs to the technical field of silver contacts, and specifically discloses a combined pressing production equipment for silver contacts, including an L-shaped body, a pressing mechanism installed on the top of the L-shaped body, a first conveyor belt and a second conveyor belt symmetrically installed on the bottom surface of the L-shaped body, a connecting block is arranged between the first conveyor belt and the second conveyor belt, both sides of the first conveyor belt and the second conveyor belt are installed with stop surfaces, a connecting piece is connected between the stop surface and the connecting block, a pressing bin is arranged inside the connecting piece, a supporting mechanism is arranged on the surface of the connecting block, an L-shaped connecting frame is arranged on the side of the L-shaped body, a positioning mechanism is installed on the inner wall of the first conveyor belt and the second conveyor belt, and a material discharge chute is opened on the bottom surface of the L-shaped body. The present invention can alternately press the silver contacts inside the pressing bins on both sides, can simplify the operation procedure, improve production efficiency, reduce working costs, and improve product quality.

A tundish and flow guide pipe fixing device for vacuum gas atomization powder making comprises a base, a stand column, a tundish transverse limiting rod and a flow guide pipe transverse limiting rod, the stand column is fixed to the center of the base, the tundish transverse limiting rod is fixed to the center line of the stand column, and the flow guide pipe transverse limiting rod is connected with the tundish transverse limiting rod through threads; the inner diameter of the tundish down-flow opening is the same as the outer diameter of the tundish transverse limiting rod; the inner diameter of the flow guide pipe down-flow opening is the same as that of the flow guide pipe transverse limiting rod; a horizontal adjusting knob and a base supporting block are arranged at the lower part of the base; by means of the simple fixing device structure, it can be ensured that the coaxiality of the tundish and the flow guide pipe is consistent, compared with fixing of the flow guide pipe by hand, the installation accuracy is improved, compared with the prior art, the operation procedure is simplified, accurate installation of the flow guide pipe is completed, and the installation efficiency is improved. And moreover, the time cost and the instrument and equipment investment caused by complex procedures are saved, and the production efficiency is effectively improved.

The present invention discloses a car luggage spare tire cover plate edge wrapping machine, which relates to the technical field of car luggage, and comprises: a control box; an edge wrapping frame, which is fixedly mounted on the top of the control box; a support frame, which is fixedly mounted on the top of the edge wrapping frame; a lifting mechanism, which is fixedly mounted at the middle position of the support frame; a clamping and positioning assembly, which is fixedly mounted on the bottom of the lifting mechanism; and an XY axis displacement platform, which is fixedly mounted on the top of the edge wrapping frame. The present invention realizes automatic glue spraying operation, improves automation performance, and realizes the performance of simultaneous edge wrapping of the spare tire cover plate body of the luggage box. The operation procedure is simple, and the effect of hot pressing edge wrapping in a high temperature environment is also realized, so as to avoid the problem that the glue solidifies before the edge wrapping and reduces the bonding effect, so that the edge wrapping bonding is more firm, and the phenomenon of automatic edge popping is prevented.

The utility model discloses an extrusion forming device for producing prefabricated locking block bricks, which comprises a table board, and a forming mechanism and a detachable cutting mechanism are mounted on the table board. The forming mechanism comprises an adjustable shaping assembly and a dehumidification assembly. The adjustable shaping assembly comprises a working cavity, an electric sliding table and a sliding block. According to the utility model, through the installation and arrangement of the molding mechanism, a working cavity, an electric sliding table, a sliding block, an electric telescopic rod, an extrusion plate and a molding cavity in the adjustable molding assembly, and an installation cavity, a heating cavity and an electric heating wire in the dehumidification assembly, drying and molding can be integrated, so that the operation procedure is simplified to a certain extent, the working time is shortened, and the production efficiency is improved. The working efficiency is improved; and by installing the detachable cutting mechanism, a hydraulic telescopic rod in a cutting cavity, a U-shaped connecting frame, a fixing bolt, a fixing gasket and a cutting blade, a tool can be provided for corner cutting, so that consumption of manpower resources is reduced, and convenience is provided for a user.

The application relates to a primer and a locked nucleic acid probe group for real-time fluorescent quantitative PCR detection of two strong and weak strains of goose parvovirus, wherein the strong and weak strains of goose parvovirus include MDGPV strong and weak viruses and SBDSV strong and weak viruses, and the sequences of the primer and the locked nucleic acid probe group are shown in SEQ ID NO. 1-8. The LNA-TaqMan real-time fluorescent quantitative PCR detection method established by using the primer and the LNA-TaqMan probe group can simultaneously detect, differentially diagnose and accurately quantify the strong and weak strains of goose parvovirus (duck small goose plague virus and / or duck short-beak dwarf syndrome virus strong and weak viruses), and is high in sensitivity, strong in specificity and good in repeatability.