71results about How to "Reduce air" patented technology

The invention discloses a vacuum microcavity interferometer chip, a manufacturing method and a low-drift optical pressure sensor, a film island structure is formed on the upper surface of a first substrate, and the film island structure comprises a protruding part and a pressure sensitive film surrounding the protruding part; a first side wall part, a getter cavity, a second side wall part and an F-P interference cavity located in the center are sequentially arranged on the lower surface of the first substrate in the radial direction, a first reflecting surface is deposited on the lower surface of the first substrate in the F-P interference cavity, and a second reflecting surface is deposited on the upper surface of the second substrate in the F-P interference cavity. A first optical antireflection film is deposited on the surface of the protruding part, and the first optical antireflection film, the protruding part, the pressure sensitive film, the first reflecting surface and the second reflecting surface have the same center; the filter further comprises a vent hole, and the vent hole is formed in the second side wall part and used for communicating the getter cavity and the F-P interference cavity.

The invention relates to a vacuum microcavity interferometer chip, a manufacturing method and an ultra-high precision optical pressure sensor, the lower surface of a first substrate is etched to form a concave cavity, after the first substrate and a second substrate are bonded, the concave cavity forms an F-P interference cavity, and the F-P interference cavity forms an F-P cavity; a first reflecting surface is arranged on the surface of the first substrate in the F-P interference cavity, a second reflecting surface is arranged on the surface of the second substrate in the F-P interference cavity, an annular cavity is formed in the upper surface of the third substrate, and the getter film is deposited on at least one surface in the annular cavity. The second substrate is provided with at least one vent hole, and the vent hole is communicated with the F-P interference cavity and the annular cavity; the projections of the annular cavity and the F-P interference cavity on the horizontal plane at least partially coincide.

The invention discloses a glue supply device of an automatic fiber umbrella rib gluing device, and relates to the technical field of umbrella rib glue coating. Comprising a glue supply mechanism, and the glue supply mechanism comprises a quantitative glue supply assembly, a glue pushing assembly and a glue feeding assembly; the quantitative glue supply assembly comprises a glue bearing barrel, a glue inlet pipe fixedly communicated with the glue bearing barrel and a first liquid one-way valve connected to the glue inlet pipe, and the glue inlet pipe is externally connected with a glue pool. The movable glue head is arranged, the glue pumping holes of the moved glue head all face the lower total glue groove in the corresponding side, the glue in the glue pool is quantitatively pushed into the glue bearing cavity through the quantitative glue supply assembly, and the glue is finally pumped out through the glue pumping holes after being pressurized through the glue pushing assembly, so that the kinetic energy loss caused by blocking of a mold cavity wall to the glue in the prior art is reduced, and the production efficiency is improved. Therefore, the flowing speed of the rubber in the flowing channel on the outer side of the rubber after mold closing is increased, the flowing speed of the rubber in the rubber coating channels transversely distributed on the two sides is increased, the curing time of rubber coating blocks formed by the rubber coating channels is shortened, and the production efficiency is improved.

The utility model discloses a konjac powder packaging machine which comprises a conveying belt used for conveying packaging bags. The discharging hopper is arranged above the conveying belt and is used for discharging the konjac powder to a packaging bag; the air exhaust mechanism is installed on the conveying belt and used for exhausting air in the packaging bags and then sealing the packaging bags. According to the packaging bag sealing device, packaging bags are conveyed through the conveying belt, after discharging is completed under the action of the discharging hopper, the packaging bags move to the air exhaust mechanism along with the conveying belt, the air exhaust mechanism exhausts air in the packaging bags and then seals the packaging bags, redundant air in the packaging bags can be reduced, and the problem that the packaging bags occupy large space is solved.

The present invention discloses a dust-free paper production device, and relates to the technical field of dust-free paper transportation and feeding. The dust-free paper production device comprises a bottom plate, a device body and a conveying module, wherein the device body comprises a feeding port and an unwinder, the conveying module comprises a crane, and the crane comprises a lifting rope and a hook, the conveying module also comprises a connecting frame, and a lifting ring is fixedly connected to the top of the connecting frame, and a support plate is fixedly connected to the bottom of the connecting frame. The dust-free paper production device can absorb and pull the protective film when transporting and feeding the paper roll, and can automatically cut it, and it is convenient to separate the cut protective film from the surface of the paper roll, so as to facilitate the peeling of the protective film on the surface of the paper roll, which is more convenient and quick to use, and can avoid damage to the paper roll, and can improve the efficiency and quality of dust-free paper production; it is convenient to find the head of the paper roll and pull it out, and can improve the efficiency of dust-free paper production.

The invention relates to the technical field of refrigerator temperature control, in particular to a refrigerator temperature and humidity control method and a refrigerator, and aims to solve the problem that the temperature and humidity in the refrigerator are affected due to the fact that the surface temperature of an evaporator fluctuates due to starting and stopping of a compressor of an existing refrigerator. In order to achieve the purpose, the control method comprises the steps that a first air door is controlled to be opened, the opening angle is gradually increased to the maximum, and a refrigeration evaporator is in a refrigeration working state; the outlet temperature of the mixed air duct and the indoor temperature of the refrigeration chamber are obtained; the outlet temperature is compared with the first preset temperature, and the indoor temperature is compared with the second preset temperature; and when the outlet temperature is smaller than the first preset temperature and the indoor temperature is larger than the second preset temperature, the refrigerating box is controlled to enter a temperature adjusting mode. According to the invention, the circulating air in the refrigerating chamber is heated and cooled by using the heat and cold of the refrigerant circulating loop, and then the desired outlet air temperature is obtained after mixing, so that the outlet air temperature is prevented from being too high or too low.

The invention relates to the technical field of polymer solution preparation devices used in the field of petroleum development, and particularly discloses polyacrylamide dry powder mixing equipment which comprises a powder storage device, a solution preparation device and a mixing device. The powder storage device comprises a powder storage tank, the powder storage tank is provided with a powder inlet and a powder outlet, and the powder outlet is connected with a powder outlet pipe. The liquid preparation device is connected with a liquid conveying pipeline, one end of the liquid conveying pipeline is connected with a liquid conveying pump, the other end of the liquid conveying pipeline is connected with a liquid preparation bent pipe, the liquid preparation bent pipe comprises a first pipe section and a second pipe section, and the first pipe section and the second pipe section are arranged in a bent mode. The first pipe section is connected with a liquid conveying pipeline, the powder outlet pipe is obliquely connected with a second pipe section, the second pipe section is connected with a venturi pipe, the pipe diameter of the venturi pipe is gradually increased in the direction deviating from the liquid preparation bent pipe, and the end, deviating from the liquid preparation bent pipe, of the venturi pipe is connected with a mixing device. The preparation method has the effect of reducing the probability of occurrence of polyacrylamide powder caking or non-uniform powder-liquid mixing during preparation of the polyacrylamide solution.

The invention relates to the field of tea making, in particular to a cake pressing device for tea making. The technical problems that according to an existing cake pressing device for tea making, tea is inconvenient to evenly press and soften, and tea to be pressed is inconvenient to shake before the tea is pressed are solved. A cake pressing device for tea making comprises supporting seats, a mounting frame, electric push rods, a supporting plate and the like, the mounting frame is jointly and fixedly connected between the two supporting seats, the two supporting seats are symmetrically arranged, each supporting seat is provided with one electric push rod, and telescopic rods of the two electric push rods are jointly provided with the supporting plate. The tea leaves are pressed under the uniform pressure of the pressing plate, the pressure generated when the pressing plate initially presses the tea leaves is reduced, the tea leaves are prevented from being pressed under high pressure quickly, the tea leaves are effectively prevented from being crushed in the pressing process, splashing of the tea leaves on the outer side in the pressing process is effectively reduced through the protection frame, and therefore waste of the tea leaves is reduced, and the production quality of tea cakes is improved and guaranteed.

The utility model provides a chlorinated paraffin density detection device, which comprises a base, a densimeter and an ultrasonic generator, the periphery of the top of the base is fixedly connected with bearing rods, a top plate is fixedly connected among the top ends of the four bearing rods, the top of the top plate is fixedly connected with a control box, the top of the base is fixedly connected with a placement seat, and the placement seat is fixedly connected with the ultrasonic generator. Compared with the prior art, the ultrasonic defoaming device has the following beneficial effects that the ultrasonic generator is started to perform vibration defoaming on chlorinated paraffin liquid in the glass container, bubbles float upwards along with vibration, the vacuum pump and the motor are started at the same time, the motor drives the transmission shaft to rotate, and the ultrasonic generator is started to perform ultrasonic defoaming on the chlorinated paraffin liquid in the glass container. The transmission shaft drives the defoaming deflector rod to revolve in the glass container, foam floating on the top of the liquid is quickly scattered, the defoaming speed is increased, then the densimeter is started to detect the density of the chlorinated paraffin liquid in the glass container, and the density detection efficiency of the chlorinated paraffin is effectively improved.

The invention relates to the technical field of automobile testing, and particularly discloses a new energy automobile driving shaft torque testing device which comprises a base, a conveying bearing table, a first supporting plate and a second supporting plate, the conveying bearing table, the first supporting plate and the second supporting plate are arranged on the base, and the first supporting plate and the second supporting plate are located on the two sides of the conveying bearing table. A first testing mechanism and a second testing mechanism are arranged on the plate face of the first supporting plate and the plate face of the second supporting plate respectively, the first testing mechanism and the second testing mechanism are oppositely arranged, the structures and the installation modes of the first testing mechanism and the second testing mechanism are the same, the automobile driving shaft is arranged on the conveying bearing table, and the shifting assembly drives the first pushing plate to move close to the end of the automobile driving shaft. Then, the spline housing is matched with an external spline at the end of the automobile driving shaft, the second baffle abuts against the first baffle, the pressing plate moves towards the circumference close to the driving shaft, the pressing plate presses the strain gauge attached to the circumference of the driving shaft, and therefore the strain gauge is tightly attached to the circumferential surface of the driving shaft.

The utility model relates to the technical field of vest pocket production, and particularly discloses a vest pocket production film blowing device which comprises a blowing device and a supporting plate, a through hole is formed in the supporting plate, two sets of positioning blocks are fixedly connected to the top of the supporting plate, and two sets of positioning rollers are arranged between the two sets of positioning blocks. The positioning block is provided with an adjusting assembly used for adjusting the distance between the two sets of positioning rollers, the bottom of the supporting plate is provided with a guide ring, the guide ring is rotationally connected with at least eight sets of supporting rods, and one side of each supporting rod is provided with a plurality of transverse rods. And the adjusting assembly can adjust the distance between the two sets of positioning rollers, vest bag films with different thicknesses can be conveniently guided and conveyed, meanwhile, air in the vest bag films is extruded, next operation is facilitated, and practicability is improved.

The invention relates to the technical field of soft package lithium battery production, and particularly discloses a soft package lithium battery top side sealing and air tightness detection all-in-one machine, which comprises a detection box, which is internally provided with a fluorination liquid; the lifting mechanism is arranged in the middle of the rear side of the detection box; the fixing mechanism is arranged at the output end of the lifting mechanism; the top side sealing mechanism is arranged at the upper part of the lifting mechanism; wherein the fixing mechanism comprises a supporting seat which is fixedly connected to the front part of the output end of the lifting mechanism; the base is fixedly connected to the upper part of the supporting seat; the fixing groove is formed in the upper front side of the base; the cavity is formed in the lower part of the front side of the base and is communicated with the fixing groove; the elastic block is slidably connected into the cavity; the spring is arranged between the inner top wall of the elastic block and the inner bottom wall of the cavity; the pressing assembly is arranged on the upper portion of the rear side of the base. According to the invention, the automatic and standardized detection process can be realized, the production efficiency is improved, the personal error is reduced, and the detection precision is improved.

The utility model discloses a heat sealing assembly and an aluminum plastic packaging bag processing device, and relates to the technical field of packaging bag processing. The device comprises a shell, one side of the shell is open, a sliding plate is connected to the inner wall of the bottom of the shell in a sliding mode, a sealing plate is fixedly connected to the side, away from the shell, of the sliding plate, and a sealing gasket is bonded to the open side of the shell and used in cooperation with the sealing plate; and the vacuumizing mechanism is arranged at the bottom of the shell and used for reducing the pressure in the shell. According to the packaging bag heat sealing device, when heat sealing is conducted on a packaging bag, air in the shell can be extracted, negative pressure is formed in the shell, air in the packaging bag is reduced, the problem that the packaging bag expands due to heat change after hot pressing is avoided, meanwhile, the end of the packaging bag can be limited, the heat sealing quality is improved, the sliding frame can move, and the sliding frame is convenient to use. And packaging bags with different widths can be subjected to heat sealing, and the use flexibility is improved.

The application discloses a modular quick-change module of an OMR vacuum laminating machine and a laminating device, relates to the field of vacuum laminating machines, and comprises a rack, a linear module is mounted on the inner side of the rack, an installation plate is fixedly connected to the top of the linear module, a workpiece is placed on the inner side of the installation plate, a hydraulic cylinder is mounted on the inner side of the rack, and a top seat is fixedly connected to the output end of the hydraulic cylinder; the cooperation of the rectangular plate and other parts enables the second nozzle to start from the sealed end, gradually advance to the middle area and the area close to the other end, and apply uniform pressure; this process not only continuously discharges air to the end, but also assists the close lamination of the film and the workpiece surface through uniform air flow pressure, ensures that the back glue of each area can fully contact the workpiece, reduces the air bubble hidden danger caused by local lamination from the root, and realizes the dead-angle-free air exhaust from one end of the workpiece to the other end, and further reduces the overall air bubble generation rate.

The invention discloses a mouse hypoxia experiment device in the technical field of medical experiment equipment, and the mouse hypoxia experiment device comprises a base, the base is fixedly provided with a box body, the base is further rotatably connected with a rotating disc for sealing the bottom of the box body, the box body comprises a feeding area and an object placing area, the feeding area is provided with a feeding opening, the object placing area is provided with an object placing opening, and the object placing area is provided with an opening. The rotating disc is provided with an object containing groove which is alternately communicated with the feeding opening and the object placing opening; an inner groove is formed in the rotating disc, an air bag is fixedly arranged in the inner groove, the air bag comprises an air inlet end and an air outlet end, the inner groove is further slidably connected with an extrusion plate used for extruding the air bag, and the extrusion plate is fixedly connected with a sliding rod extending out of the rotating disc; the base is fixedly provided with a ring body located below the rotating disc, the top of the ring body is fixedly provided with an arc-shaped extrusion part, and the extrusion part comprises a horizontal tangent plane and inclined planes connected with the two sides of the tangent plane. According to the invention, the accuracy of experimental results can be improved.

The present invention relates to the technical field of concrete performance detection, and specifically to a sampling structure for concrete performance detection, comprising a shovel shell and a rod body arranged on the shovel shell, and also comprising a sleeve shell, wherein the sleeve shell is arranged on the shovel shell through a rotating shaft; a circular opening, wherein the circular opening is opened on the shovel shell; a plate one, wherein the plate one is arranged on the shovel shell, and the plate one is located in the circular opening; the sleeve shell is turned over and rotated around the rotating shaft, and an unsealing component is used to displace the plate one and the circular opening, so that the circular opening is connected, and the circular opening is connected so that concrete flows from the circular opening into the sleeve shell, and then the concrete flows into the sleeve shell to drive the auger to rotate, so that the concrete is mixed and stirred, and a linkage component is used to drive multiple tamping rods to tamp the concrete, so that a part of the air in the concrete can be reduced, thereby reducing the operation steps of the operator.

The invention discloses a granulation device for probiotic production, and relates to the technical field of probiotic production, the granulation device comprises a granulation box; the granulation box comprises a raw material box; a granulation assembly is arranged in the middle of the raw material box and comprises a rotating shaft, a granulation plate is arranged in the middle of the rotating shaft, a reset spring is arranged on one side of the inner wall of the bottom of the granulation plate, a scraping plate is arranged on one side above the reset spring, and a separation plate is arranged in the middle of the bottom surface of the scraping plate; the bottom surface of the separation plate is fixedly connected with an extrusion spring, and the bottom surface of the granulation plate is slidably connected with a cutting knife; wherein the bottom of the rotating shaft is fixedly connected with a rotating support, a sieve plate is arranged above the rotating support, probiotic particles are separated from the cutting knife through a scraping plate, the probiotic particles are separated from the scraping plate through a separating plate, and the condition of adhesion of the probiotic particles is reduced through cooperation of inclined rotation of the separating plate and the sieve plate; and the uniform granulation effect of the granulation device is improved.

The present invention discloses a sodium ion battery positive electrode material precursor and a preparation method and application thereof. The sodium ion battery positive electrode material precursor includes a positive electrode material precursor and a NASICON type material precursor; the NASICON type material precursor is a substance that is converted into a NASICON type material after calcination. The present invention uses the NASICON type material precursor and the positive electrode material precursor in combination to effectively improve the sodium ion migration efficiency and sodium storage performance. Preferably, the NASICON type material is coated on the surface of the positive electrode material to improve the uniformity of the coating layer, thereby greatly improving the cycle performance and rate performance of the material. At the same time, the present invention solves the disadvantages of poor air and water stability of the coating in the sintering stage of the rear-end positive electrode material by using an ordinary positive electrode material precursor and a NASICON type material precursor in combination at the precursor end, reduces the complexity of the subsequent process, and reduces the production cost.

The utility model discloses a gas-phase rust-proof bag, which is characterized in that an exhaust structure and a corresponding sealing cover are arranged to control the opening and closing of an airflow channel, so that air in the bag can be exhausted after the bag is sealed, and a triple sealing structure which takes an exhaust hole as a center is formed below the sealing cover, so that good air tightness in the bag after the exhaust is finished is ensured. And air outside the bag is prevented from invading from the exhaust holes, and anti-rust factor gas is prevented from leaking. Articles placed in the gas-phase rust-proof bag can be clamped and fixed in the central area in the bag through the flexible cushion layer, gas flow is sucked in from the gas inlet holes in the side face of the gas flow channel table body and faces the open area in the bag, gas in the bag can be exhausted more efficiently, and when the bag is exhausted and contracts, the flexible cushion layer replaces the bag face to make contact with the articles, so that the gas-phase rust-proof bag is formed. And abrasion of the bag surface can be avoided. The gas-phase rust-proof bag can still achieve an ideal rust-proof effect in various complex and severe storage environments, and is particularly suitable for long-term storage of some precision metal products and rust-proof protection during marine transportation.

This utility model relates to dishwashers, specifically providing a water cup assembly and a dishwasher, aiming to solve the problem of insufficient water intake in existing dishwasher water pump inlet structures, which leads to air or foam easily entering the water pump, causing cavitation and affecting the stability and reliability of the system operation. To this end, the water cup assembly of this utility model includes: a water cup with a downwardly recessed first groove; an insert disposed within the first groove to restrict the water flow path within the first groove; the insert has a notch, allowing water in the first groove to flow along the notch. The notch in this utility model increases the water intake in the first groove, helping to form a stable water seal layer in the water tank, effectively preventing air from entering the washing pump and preventing cavitation, thereby improving the operational stability and reliability of the washing system. Simultaneously, the notch structure of the insert reduces material usage while meeting functional requirements.

The utility model provides a batching device for preparing a nitride ceramic substrate, which comprises a stirring barrel and a cover, the cover is provided with a stirring paddle extending into the stirring barrel, the stirring paddle is in transmission connection with a servo motor, the cover is provided with a vacuumizing pipe connected with vacuumizing equipment, and the cover is provided with a solid feed port and a liquid feed port. Valve plates capable of being opened towards the inner side of the stirring barrel are arranged at the solid feeding port and the liquid feeding port, a batching barrel is arranged at the upper ends of the solid feeding port and the liquid feeding port, a screw cap is arranged at the upper end of the batching barrel, a piston is arranged in the batching barrel, an air cylinder is arranged on the screw cap, and the output end of the air cylinder penetrates through the screw cap to be connected with the piston. A feeding hole is formed in the side wall of the upper side of the batching barrel. According to the batching device for preparing the nitride ceramic substrate, the two batching barrels are arranged on the stirring barrel for transfer, the feeding hole is opened and closed through the piston, raised dust is reduced, meanwhile, air entering the stirring barrel is reduced, and the processing cost of defoaming is reduced.

The utility model discloses an energy-saving concrete telegraph pole pouring device, which relates to the technical field of concrete telegraph poles and comprises a pouring mold, positioning plates are arranged at the front end and the rear end of the pouring mold, and a steel cable is mounted in the pouring mold. And a knocking mechanism for reducing bubbles in the cement mortar is arranged at the lower end of the fixing plate. According to the energy-saving concrete telegraph pole pouring device, a first cam is driven by the output end of a driving motor to rotate, the first cam synchronously extrudes a pushing rod when rotating, the pushing rod reciprocates accordingly, a knocking block is pushed upwards in the moving process of the pushing rod, the knocking block is knocked upwards, and therefore the energy-saving concrete telegraph pole is poured. The knocking block can penetrate through the fixing groove and knock the bottom end of the pouring mold when moving upwards, so that air in concrete in the pouring mold can be reduced, and residual air holes in the surface of the pouring mold can be effectively reduced when the pouring mold is centrifugally rotated through a centrifugal machine.

The invention is applicable to the technical field of special-shaped composite materials, and provides a high-strength arc-shaped composite material plate which comprises a glass fiber layer and a resin layer, wherein the glass fiber layer is formed by sequentially laying three kinds of glass fiber cloth with different specifications; the resin layer is prepared from the following raw materials in parts by weight: 100 parts of resin, 81.95 to 82.05 parts of a curing agent and 0.245 to 0.0.25 part of an accelerant. The invention further provides a forming process of the high-strength arc-shaped composite material plate. According to the invention, a vacuum resin pouring molding process is adopted, and the resin infiltrates the glass fabric in a vacuum state, so that the contents of air and other volatile matters are greatly reduced, and the composite material plate has excellent performance; the mold adopts the female mold, so that the problem of wrinkles after vacuumizing of the glass fabric is greatly reduced, shrinkage and deformation of a formed product are fully considered, during specific implementation, the reversible deformation size is calculated according to actual conditions, the mold is designed according to the size, the processing amount is reduced, and the mechanical strength of the composite material plate is improved.

This invention relates to the field of chemical packing sintering technology and discloses a chemical packing sintering device with controllable sintering temperature. The device includes a base, with a combustion furnace and a gas storage tank fixed to the top of the base. A connecting pipe is fixed to the side wall of the gas storage tank, and the end of the connecting pipe away from the gas storage tank is fixed to the outer wall of the combustion furnace. In this device, pulling a block upwards moves a limiting rod out of a limiting hole, pushing a push rod. Through the cooperation of a movable rod and a baffle, the baffle moves downwards, thus blocking the connecting pipe. When the baffle is adjusted, the push rod can be rotated through the limiting rod and the limiting hole to fix the baffle. This reduces the air volume in the combustion furnace, decreases the firepower, and lowers the temperature, thereby allowing for temperature regulation within the combustion furnace.

The present invention relates to the technical field of mixing and stirring, and specifically to a polypropylene mixing and stirring tank, comprising: a bracket, a top cover is slidably mounted on the upper end of the bracket, a tank body is fixedly mounted on the inner bottom end of the bracket, the top cover is airtightly slidably connected to the upper end of the tank body, a material discharge cover is slidably mounted on the lower end surface of the bracket, and a material discharge barrel is fixedly mounted on the upper end surface of the top cover. The present invention sets a detection element, and in the process of stirring the upper, middle and lower layers of the material in the tank body by the stirring blade, the viscosity of the material will hinder the rotation of the stirring blade, thereby driving the stirring blade and the rotating ring to rotate on the connecting ring, and in the process of the rotating ring rotating, the rotating ring will drive the detection rod to rotate at the detection end of the detection element, so that the detection element detects that when the transmission rod is rotating, the rotating ring rotates on the connecting ring due to the excessive viscosity of the material, thereby determining that the viscosity of the material is too high.

The present invention provides a prestressed pipeline grouting device, which relates to the technical field of grouting equipment, including a mounting base, a stirring barrel arranged above the mounting base, a feed barrel arranged above the stirring barrel, the bottom of the feed barrel being connected to the inside of the stirring barrel through a feeding pipe, a partition arranged in the feed barrel, the partition dividing the feed barrel into a feeding chamber and a suction chamber, a driving component arranged in the feed chamber, a suction component arranged in the suction chamber, a discharge pipe and an extraction pipe arranged on the side walls of the feed barrel, one end of the discharge pipe being connected to the inside of the suction chamber, the other end of the discharge pipe being connected to the outside of the feed barrel, one end of the extraction pipe being connected to the inside of the suction chamber, the other end of the extraction pipe extending into the stirring barrel and being provided with a suction block, and the bottom of the stirring barrel being connected with a discharge pipe. In the present invention, the air in the stirring barrel can be drawn into the suction chamber through the extraction pipe and discharged from the discharge pipe, thereby reducing the air in the stirring barrel, thereby reducing the generation of bubbles inside the grouting material, improving the grouting quality, and ensuring the smooth progress of the pipeline grouting.

A method for preparing a transmission electron microscope sample of magnetic powder particles belongs to the technical field of transmission electron microscope sample preparation, and comprises the following steps: embedding magnetic powder particles in a transmission electron microscope sample support net, further fixing them with a special resin for ion thinning, respectively arranging thin film materials on the upper and lower layers, applying pressure with a clamp, making the special resin for ion thinning evenly distributed, completely wrapping the transmission electron microscope sample support net and the magnetic powder particles, exhausting the existing air, heating and heat preservation and then cooling, taking out the support net, preparing a thin area, and obtaining a transmission electron microscope sample of magnetic powder particles. The present invention can make the magnetic powder particles be subjected to transmission electron microscope microstructure observation, ensure that the magnetic powder particles can be stable and immobile under high-intensity magnetic field conditions, and make transmission electron microscope observation of the microstructure of the magnetic powder particles possible.

The invention relates to the technical field of medical instrument cleaning and disinfection, and discloses medical surgical instrument cleaning and disinfection equipment which comprises an equipment seat body, a placement basket, an ultrasonic cleaning mechanism, a clean water flushing mechanism, a high-pressure steam disinfection mechanism and a control display, the ultrasonic cleaning mechanism, the clean water flushing mechanism and the high-pressure steam disinfection mechanism respectively comprise a cleaning bin body, a flushing bin body and a disinfection bin body, a bubble stirring mechanism is arranged in the cleaning bin body, the bubble stirring mechanism comprises an air hole disc which is axially symmetrically and fixedly connected to the inner bottom of the cleaning bin body, and a vacuumizing mechanism is arranged in the disinfection bin body. Intermittent bubble stirring of cleaning liquid in the cleaning bin body can be achieved, the cleaning liquid can be assisted in macroscopic movement so as to improve the cleaning and decontamination efficiency of surgical instruments, meanwhile, air in the disinfection bin body is reduced, the working time of a vacuumizing pump is shortened, and the working efficiency is improved. Therefore, high-temperature steam can be assisted to uniformly permeate so as to improve the disinfection and sterilization effect.

The present invention relates to the field of bagging, and in particular to an easy-to-use packaging bag placement rack, including a placement rack; a limiting rack, a second connecting plate, a first multi-stage electric push rod and a translation component, etc.; the limiting rack is fixedly connected to the placement rack, and a plurality of first slide grooves are provided on the limiting rack; the limiting rack is connected to the translation component; the translation component is connected to a plurality of second connecting plates, and each second connecting plate is fixedly connected to the first multi-stage electric push rod. The present invention reduces the air in the limiting barrel and the second limiting plate, that is, the sealing elastic cloth will be concave inward, that is, in this way, it can be judged whether the packaging bag is damaged, and the valve on the external conveying equipment pipeline on the corresponding unloading barrel is closed, so as to avoid that when the medicinal materials are packaged in the packaging bag in the subsequent time, the medicinal materials cannot be better sealed due to the damage of the packaging bag, thereby reducing the waste of medicinal materials.

The present application relates to the field of medical devices, especially to a B-ultrasound image examination auxiliary device.The present application provides a B-ultrasound image examination auxiliary device, which can more evenly apply coupling agent on the surface of the human body, and can absorb the coupling agent on the surface of the human body, assisting artificial to perform more rapid B-ultrasound examination, so as to improve the efficiency of B-ultrasound examination.A B-ultrasound image examination auxiliary device comprises a shell, a gas storage bin, a B-ultrasound probe and a discharging mechanism, etc.The gas storage bin is arranged on the shell, the B-ultrasound probe is arranged on the shell, the gas storage bin is fixedly connected with the B-ultrasound probe, and the discharging mechanism is arranged on the shell.The present application can quickly apply coupling agent on the patient during B-ultrasound examination, and can absorb the excess coupling agent on the surface of the patient's skin.Compared with manual application of coupling agent, the present application is more time-saving and labor-saving, and the operation is simple, which can assist the staff to perform more rapid B-ultrasound examination on the patient, and improve the efficiency of B-ultrasound examination.