92results about How to "Achieve the purpose of repeated use" patented technology

The invention discloses a domestic water filtering and purifying structure, which comprises a hollow cylindrical filtering shell and at least one filtering unit, wherein the at least one filtering unit is arranged at the inner side of the filtering shell and is further arranged in a superposition manner along the vertical direction; the top of the filtering shell is provided with a water inlet; the bottom of the filtering shell is provided with a water outlet; each filtering unit comprises a filtering upper cover and a filtering base respectively; each filtering upper cover is provided with an umbelliform upper filtering surface; each upper filtering surface is provided with a filtering material which is used for adsorbing and filtering out impurities in water; the outer side edge of the circumference of the filtering upper cover is provided with a water outlet hole; each filtering base is arranged below the corresponding filtering upper cover and is further provided with an inverted umbelliform lower filtering surface; each lower filtering surface is provided with a filtering material which is used for adsorbing and filtering out the impurities in the water; the middle part of each filtering base is provided with a water outlet. By adopting the technical scheme, according to the domestic water filtering and purifying structure, the increment of water filtering time is realized through the oblique filtering surfaces provided with the filtering materials; the domestic water filtering and purifying structure is excellent in filtering effect; further, a filtering structure can be repeatedly used after being cleaned.

The invention discloses a spinal intervertebral foramen surgery model. The model comprises an artificial spine composed of multiple segments of artificial vertebral bones,an artificial intervertebraldisc located between every two adjacent artificial vertebral bones,an intervertebral disc protrusion simulated object bonded to each artificial intervertebral disc and artificial tissue wrapped on theexterior of the artificial spine; the intervertebral disc protrusion simulated objects are made of viscose fibers and bonded to arbitrary positions of the corresponding artificial intervertebral discs. The intervertebral disc protrusion simulated objects made of the viscose fibers can be glued to appropriate positions outside the corresponding intervertebral discs to simulate different types of intervertebral disc protrusions,and the shape and size of the intervertebral disc protrusion simulated objects can be adjusted according to needs to be better in line with the real state of the human body. Compared with a traditional mode of using corpses or non-dedicated models for training,the model has the advantages that the cost of training doctors can be greatly reduced,the repeatability is excellent,surgical modes are diversified,and the training period can be shortened.

The invention provides a self-adaptive deformation reset anti-collision method capable of resisting uneven impact force. A self-adaptive viscous damping anti-collision pier is arranged on the foundation, the anti-collision pier comprises a main structure and a rigid framework embedded in the main structure, a viscous damping chamber is arranged in the rigid framework, a piston with a damping holeand a spring abutting against the piston are arranged in the viscous damping chamber, and the tail end of a piston rod extends out of the rigid framework and is connected with a collision plate in a hinged mode. During collision, the collision plate enables a viscous liquid to flow through the damping hole to consume collision energy. The collision plate can be subjected to tipping movement in various directions when bearing eccentric collision impact, and the anti-collision pier can automatically adapt to the situation of eccentric collision. After the collision occurs, the collision plate can be automatically reset under the action of the spring. During manufacturing of the anti-collision pier, the rigid framework is firstly manufactured, a liquid injection hole is drilled in the rigid framework, and then the rigid framework is integrally cast with the main body structure, the anti-collision pier is simple and convenient, the practicability is strong, and the economical efficiency isgood. The method is particularly suitable for bridge abutments, bridge bodies, mountain roads and the like.

The invention provides magnetic COF-TpPa for enriching amide pesticides and a preparation method and application of the magnetic COF-TpPa and belongs to the technical field of adsorption materials. The preparation method provided by the invention comprises the following steps: (1) mixing 2,4,6-trihydroxy benzene-1,3,5-trioxin, amination magnetic beads and ethanol, and carrying out a first aldehydeamine condensation reaction so as to obtain aldehyde magnetic beads; and (2) putting a solution of p-phenylenediamine into a dispersion liquid of the aldehyde magnetic beads, further adding a solution of 2,4,6-trihydroxy benzene-1,3,5-trioxin, and carrying out a second aldehyde amine condensation reaction, thereby obtaining magnetic COF-TpPa for enriching amide pesticides. The magnetic COF-TpPa which is prepared by using the preparation method provided by the invention has excellent adsorption upon amide pesticides (prochloraz and tolfenpyrad), is good in stability, has superparamagnetism andis easy to separate, in addition, the preparation method is simple to operate, and reaction conditions are gentle and controllable.

The invention discloses a detachable flowerpot comprising pot shards, clamping structures, fixing structures, a reinforcing band, a chassis, a groove, a pot shard pit, a chassis pit, convex structures, convex ridges and clamp boxes. One flowerpot comprises three pot shards. The clamping structures are arranged between the pot shards, and the pot shards are fixed by the fixing structures. The position, which is close to the lower end of the fixing structures, of the pot body is provided with one groove which is internally provided with the reinforcing band. The chassis is arranged at the lower end of the pot shards. The convex ridges stretch into the chassis pit to be clamped with the chassis pit. The pot body is decomposed into multiple pot shards, the pot body can be directly detached into multiple shards in case of requirement, and the potted landscape can be easily taken out when the pot of the potted landscape or the potted landscape requires to be changed so as to save labor. The fixing structures can be easily disassembled in detachment without damaging the flowerpot so as to achieve the purpose of reuse.

The invention discloses a reusable flexible inorganic electroluminescent device, comprising a plastic film layer printed with image-text information, a non-setting adhesive layer, a transparent electrode layer, a luminescent layer, an insulating layer and a back electrode layer in sequence from bottom to top. The non-setting adhesive layer is adhered to the transparent electrode layer in a roll coating mode; the transparent electrode layer, the luminescent layer, the insulating layer and the back electrode layer are tightly attached to one another in a screen printing mode, and the plastic film layer and the non-setting adhesive layer are tightly attached to each other in a manner of being capable of being repeatedly stripped and bonded. The flexible inorganic electroluminescent device prepared by the invention serves as a light source of a thin light box, and can achieve the purpose of reuse through repeated stripping and bonding of the plastic film layer, replacement of image-text content is relatively convenient and easy, resources are saved, and waste is reduced.

The invention provides a preparation method and application of sea anemone polypeptide toxin, and the preparation method comprises the following steps: 1, extraction of sea anemone crude venom: after live sea anemone is hungry, extracting an aqueous solution containing sea anemone crude toxin by using a manual extrusion method or/and an electrical stimulation method, freeze-drying the aqueous solution containing sea anemone crude toxin, and dialyzing and desalting by using a biological CE membrane dialysis bag; 2, filtering sea anemone crude toxin molecules: centrifuging the extracted sea anemone crude toxin by using an ultrafiltration tube to obtain a filtered component; and 3, purification of the sea anemone toxin: filtering the filtered component obtained in the step 2 through a microfiltration membrane, carrying out gradient elution through a reversed-phase high performance liquid chromatograph to obtain F1-F3 components, collecting the F1 component, and carrying out freeze drying to obtain the purified sea anemone polypeptide toxin, The sea anemone polypeptide toxin prepared by the invention not only can inhibit the activity of colon cancer cells HCT-116, but also can promote the apoptosis of the colon cancer cells HCT-116.

The invention relates to an authenticable multi-user quantum key distribution method based on a single particle, and the method takes the single particle as a quantum carrier of information, and completes the distribution of session keys between any two users in a network under the assistance of a semi-trusted third party. Through two eavesdropping detection processes, identity authentication of the two participants is realized. And finally, the security of the master key of the user is ensured by distilling the master key of the user, so that the purpose of reusing the master key is achieved. The quantum mechanics principle ensures the unconditional safety of the method in theory. Meanwhile, each user only needs to store the respective master key, and does not need to store the transmission particles, so that the method is high in practicability.

The invention discloses a reusable UV transfer film. The reusable UV transfer film sequentially comprises a PET base layer, an UV imaging information layer, an isolation layer, an aluminum layer and a back adhesive layer from top to bottom, wherein the UV imaging information layer adopts UV intaglio printing. Meanwhile, the invention also discloses a production method of the reusable UV transfer film. The production method comprises the following steps of S1, carrying out corona treatment on the PET base layer; S2, adopting intaglio printing, coating the PET base layer with UV printing ink, and then carrying out ultraviolet irradiation to cure the UV printing ink to obtain the UV imaging information layer; S3, spraying the isolation layer on an information face of the UV imaging information layer; S4, plating aluminum on the surface of the isolating layer to form the aluminum layer; and S5, coating the positon below the aluminum layer with the back adhesive layer. According to the reusable UV transfer film, a concave-convex microstructure on the UV imaging information layer can form a special holographic anti-counterfeiting pattern on the aluminum layer, the aluminum layer is directly adhered to paper, and the UV imaging information layer is reserved on the PET base layer so as to achieve the purpose of repeated use.

The invention discloses a novel tablet which mainly consists of a porcelain plate and a mounting frame. The porcelain plate is a plane plate block and the mounting frame is provided with a holding part which can hold the porcelain plate to be placed and is matched with the porcelain plate in size and shape; the porcelain plate is arranged in the holding part of the mounting frame. As the invention can adopts the common clean water as ink to write on the porcelain plate, the porcelain plate can be used for writing again after the water stain written on the porcelain plate is dried quickly, thus reaching the purpose of using repeatedly. The invention is especially suitable for practicing calligraphy with a writing brush, can save a lot of paper and reduces the cost of practicing calligraphy; the invention is also suitable for writing with a fountain pen, the middle of which can be filled with clear water, thus being suitable for both the writing brush and a hard pen with wide application range. The main part of the invention is the porcelain plate with the advantages of low price, simple structure, portability and convenient use.

The invention relates to an anti-floating method and device for a bored concrete pile reinforcement cage. The anti-floating method is characterized in that the technological process is as follows: before starting to drill a hole, taking the center of a pile position as the center of a circle, confirming the position of a steel pile casing on the soil according to the radius of the steel pile casing of the anti-floating device of the bored concrete pile reinforcement cage, after placing the steel pile casing, applying pressure for embedding the steel pile casing into the soil, and then starting to drill the hole; after forming the hole in a bored concrete pile, placing the reinforcement cage into the hole; penetrating a U-shaped lock catch into the reserved hole in the steel pile casing; using a bolt to connect the U-shaped lock catch with a connecting loop bar; inserting the tail part of a fork rod into the connecting loop bar; clamping the head of the fork rod on a top hoop of the reinforcement cage, and then starting to pour concrete; when the concrete is about to be poured to the pile top position, detaching the bolt on the U-shaped lock catch; taking down the connecting loop bar, the steel fork rod and the U-shaped lock catch; continuing pouring the concrete to the designed elevation, and pulling out the steel pile casing. According to the anti-floating method and device provided by the invention, the floating of the reinforcement cage while pouring the concrete can be effectively avoided.

The invention discloses a gear set meshing detection auxiliary device for intelligent production of an electromechanical valve of a gas meter, and the device is characterized in that a self-resetting deformation part is arranged on a transmission gear set conveying track, and is used for making contact with a conveyed transmission gear set for deformation; and gears in the gearbox gear set are driven to rotate and mesh based on friction force generated by contact of the two and/or self-resetting deformation force generated by deformation of the self-resetting deformation piece. The self-resetting deformation piece makes contact with the gearbox gear set in the conveying process and then makes contact with the gearbox gear set in the conveying process to deform, and the self-resetting deformation piece and the gearbox gear set generate contact friction force and resetting deformation force; and the gears in the gearbox gear set can be driven to generate slight actions such as shaking, floating, fluctuating or rotating based on the friction force and/or the deformation force, when the gears which are not meshed or not completely meshed conduct the actions, mutual tooth grooves and gear teeth are meshed more easily, and then auxiliary meshing in the gearbox gear set is achieved.

The invention discloses a side slope supporting method, in particular a recompression supporting method of a tall side slope. The invention aims at providing a supporting method of the tall side slope, which is safe and reliable, reduces the construction period and saves the cost. At least two anchor rods are transversely arranged on the position above the top of the side slope to be supported; a connection reinforcing steel bar is connected between the anchoring rods; geotextile is fixed on the anchor rods and the connection reinforcing steel bar and is paved from the slope surface to the slope toe. The falling of collapse rocks and instability of instable areas can be prevented by using the geotextile to cover the high side slope, and special collapse rock treatment is not needed on the side slope, thereby effectively saving manpower and material resources. The geotextile can recompresses the collapse rock to prevent falling of the collapse rock. The collapse rock fallen occasionally can only fall down along the geotextile and the slope surface and is extruded by the geotextile in the falling process, thereby the friction function, falling speed and energy are reduced and impact downward with accelerated speed is avoided.

The invention discloses an ultrafiltration membrane cleaning machine with recyclable cleaning fluid. The ultrafiltration membrane cleaning machine comprises a storage container for containing the cleaning fluid. The cleaning fluid goes through a first filter, a booster pump and a disk type filter in sequence and then enters an ultrafiltration component; effluent fluid of the ultrafiltration component returns to the storage container after filtration by a second filter; and both the filter mediums of the first filter and the second filter are gravel particle filter material. Clotted protein and colloid substance cleaned away from an ultrafiltration membrane are filtered out of the ultrafiltration membrane cleaning fluid by the filter material of the first filter and the second filter, so that the cleaning fluid is always kept clean as before and the purpose of repeated use is achieved.

The invention provides magnetic COF-TbPa for enrichment of triazole pesticide and a preparing method and application of the magnetic COF-TbPa, and belongs to the technical field of adsorption materials. The preparing method of the magnetic COF-TbPa comprises the following steps of (1) mixing 1,3,5-tris(p-formylphenyl)benzene, amination magnetic beads and ethyl alcohol, and carrying out a first aldimine condensation reaction to obtain formylation magnetic beads; (2) adding a solution of p-phenylenediamine into a dispersion solution of the formylation magnetic beads, then adding a solution of the 1,3,5-tris(p-formylphenyl)benzene, then dropwise adding an aqueous solution of acetic acid, and carrying out a second aldimine condensation reaction to obtain the magnetic COF-TbPa for enrichment ofthe triazole pesticide. The material obtained by means of the preparing method has excellent adsorbability on the triazole pesticide, is high in stability, has high superparamagnetism, and can be directly separated and recycled from a solution medium through magnetic separation; moreover, the preparing method is easy to operate, and the reaction condition is mild.

A commercial stove, including a panel, a hearth, an air intake pipe, a built-in burner in the hearth, and an air duct. There are smoke exhaust holes, and the inner wall of the furnace is covered with an infrared reflective net; the inlet pipe is divided into a horizontal pipe and a longitudinal pipe, and the longitudinal pipe is connected with the horizontal pipe, and the end of the longitudinal pipe is an air inlet, and one end of the horizontal pipe is The fire gas outlet and the main fire gas outlet are set at the other end; the fire ignition valve is connected to the horizontal pipe between the fire gas outlet and the longitudinal pipe, and the main fire air-gas linkage valve is connected to the horizontal pipe between the main fire gas outlet and the longitudinal pipe; the panel A display screen is provided on it. The invention can simultaneously adjust the flow rate of the gas pipe and the air pipe, maintain a fixed ratio of air and gas, make the gas fully burn, and recover excess heat energy for reuse, so that the furnace is heated evenly, and the firepower can be checked intuitively in time.

The invention discloses air purifying equipment provided with a secondary purifying bracket. The air purifying equipment comprises a guiding tube with a vent hole, bagged activated carbon, an air exhausting covering plate, a heater, an air outlet, a control room, a controller and a control panel; an air inlet chamber is located below a body, and a primary filter plate with an air inlet hole is designed below the air inlet chamber; an air guiding chamber is designed above the air inlet chamber, and the secondary purifying bracket is fixed between the air inlet chamber and the air guiding chamber in a screw joint mode; the whole secondary purifying bracket is of a square structure; a frame body is arranged on the periphery of the whole secondary purifying bracket and is a main body of the whole secondary purifying bracket; and a first passing hole is designed and formed in the side wall of the frame body. A second washing water pipe is arranged on the air purifying equipment provided with the secondary purifying bracket, because silting and blockage of the breathable nylon mesh surface are easily caused by the fact that the size of pollutant needing to be filtered is large, the separately designed second washing water pipe can conduct high-speed water flow scouring and cleaning on the breathable nylon mesh surface and the primary filter plate at the bottom, so that the breathable nylon mesh surface is kept smooth to ensure normal air filtering operation.

The invention discloses a storing and taking device for packaging bags. The storing and taking device comprises a machine base provided with a machining chamber, a sensor is arranged at the top of the machining chamber, and a controller is electrically connected with the sensor; a plurality of boxes are connected into the machining chamber in a sliding manner, and a feeding opening is formed in the top of each box; the left inner wall and the right inner wall of each box are each provided with a plurality of supporting arms at equal intervals, and each supporting arm is located between two corresponding adjacent sliding grooves; a gravity sensor is arranged at the top of each supporting arm and is electrically connected with a processor, and the processors are electrically connected with the controller; the storing and taking device further comprises an extrusion mechanism comprising an air cylinder and an air inflation bag connected with the air cylinder, and the air cylinder is electrically connected with the controller; a plurality of exhaust holes are formed in the side wall of the air inflation bag; an ozone storage box is further arranged on a piston rod of the air cylinder and is located in the air inflation bag; and a control valve is arranged on the storage box and is electrically connected with the controller. According to the scheme, the problem that according to the traditional storage manner of the packaging bags, the separating efficiency is low is solved.

The invention provides a gas phase magnesium purification method based on a pure iron filter material. The method uses the pure iron filter material to filter magnesium vapor, on one hand, the pure iron does not react with the magnesium vapor, and no new impurities are brought to the system; on the other hand, impurities Al, Mn and iron in the magnesium vapor have special affinity, and stable solid solution can be formed with iron; meanwhile, pure iron can be used as a site for nucleation of certain impurities in the magnesium vapor, so that the nucleation energy barrier can be reduced, the certain impurities can be deposited in advance, and impurities can be removed. The method can be applied to industrial large-scale gas phase magnesium purification, the production efficiency of magnesium purification is improved on the order of magnitude through increasing the temperature, the content of impurities Mn in the magnesium raw material is reduced to 10 ppm or below, the content of Al isreduced to 10 ppm or below, the content of Ca is reduced to 20 ppm or below, and meanwhile, non-metal impurity elements such as F, Cl and S can be removed to obtain the magnesium with the purity of 99.99% or above.

The invention discloses an Internet of Things intelligent gas meter electromechanical valve gearbox gear set assembling system. The Internet of Things intelligent gas meter electromechanical valve gearbox gear set assembling system comprises a gearbox cover body conveying system; and the Internet of Things intelligent gas meter electromechanical valve gearbox gear set assembling system further comprises a gearbox cover body feeding system, a lower-layer gear assembling system and an upper-layer gear assembling system which are sequentially arranged in the gearbox cover body conveying direction. The gearbox cover body conveying system is used for automatically conveying gearbox cover bodies, the gearbox cover body conveying system is filled with the cover bodies through the gearbox cover body feeding system, and the lower-layer gear assembling system and the upper-layer gear assembling system are used for gear assembling of lower-layer gears and upper-layer gears correspondingly. After assembly, the lower-layer gears and the upper-layer gears are meshed with each other to form gearbox gear sets, the assembly cost is low, and the efficiency is high.