41results about How to "Avoid Mixed Contamination" patented technology

The invention discloses an automatic distribution system, which is characterized by comprising two distribution rotary wheel mechanisms arranged in parallel, a storage rotary wheel mechanism, a dust collection mechanism, an electric control system and the like. The automatic distribution system has the advantages of convenience and high speed in use, long service life, low implementing cost, capabilities of increasing distribution efficiency and reducing labor intensity and the like.

The invention discloses a veterinary medicine material cleaning device capable of preventing epidemic diseases. The veterinary medicine material cleaning device comprises a cleaning barrel body, a fixed ring, a rotating rod, heating pieces, a material outlet and universal wheels, the upper portion of the outer side of the cleaning barrel body is provided with a barrel cover, the lower portion of the barrel cover is connected with a medicine inlet, the left side of the medicine inlet is provided with a water pipe, the front side and the rear side of the right side of the water pipe are providedwith ultraviolet sterilization lamps, the right sides of the ultraviolet sterilization lamps are provided with a lifting rod, the upper portion of the lifting rod is provided with a connection rod, the outer side of the connection rod is provided with a hot air fan, the fixed ring is located under the lifting rod, and a motor is installed below the fixed ring. The veterinary medicine material cleaning device capable of preventing epidemic diseases is provided with the ultraviolet sterilization lamps, sterilizing disinfecting treatment is conveniently performed on medicine materials, the medicine effect of the medicine materials is preserved, mixed pollution is avoided, the quality of the medicine materials is improved, so that the cure rate of veterinary medicines on animals is increased,and occurrence of the epidemic diseases can be effectively prevented.

The invention discloses sampling equipment for geological detection. The sampling equipment comprises an equipment body, wherein the equipment body comprises a drill bit and a drill barrel, an upper end of the drill bit is fixedly connected with the drill barrel, an upper portion of the drill barrel is connected with a driving device, a plurality of sampling barrels distributed at equal intervalsare embedded in the drill barrel, fan-shaped through grooves are formed in side walls of the sampling barrels, outer scraping plates are embedded in the fan-shaped through grooves, and protruding strips integrally formed with the outer scraping plates are fixedly connected. The sampling equipment is advantaged in that by arranging the sampling barrels, the fan-shaped through grooves, the outer scraping plates, a convex strip and a torsion spring, soil samples with different depths are accurately sampled, and mixed pollution of the soil samples with different depths is avoided; through an innerhinge plate and a limiting groove, soil is prevented from being thrown out when the drill barrel is lifted; through the arrangement of a drill bit with a water pumping cavity and a water pumping hole, a water pumping pipe and a piston disc driving mechanism linked with a stepping motor through a magnetic coupling, collection of a water sample at a specified depth is realized.

The invention discloses a suspension type waste accommodation device, which comprises a baseplate and more than one accommodation box arranged on the baseplate, wherein connecting parts are fixed on the back side of the baseplate and used for hanging the accommodation device; the accommodation boxes comprise medical waste boxes. The connecting parts are arranged on the back side of the waste accommodation device, the waste accommodation device can be hung on a guardrail at the head of a patient's bed through the connecting parts, and the waste accommodation device comprises multiple accommodation boxes arranged in a classified manner, so that a nurse can place the waste generated during treatment into the corresponding accommodation boxes and the treatment tray can be kept clean. Meanwhile, the patient and the relatives can place domestic waste in corresponding accommodation boxes, so that domestic waste and medical waste can be placed separately, mixed pollution can be avoided, and cleanness and sanitation of a ward can be kept. Moreover, as the accommodation boxes are detachably arranged on the baseplate, the accommodation boxes can be taken down conveniently to facilitate waste collection and the accommodation boxes can be disinfected and cleaned conveniently.

The utility model discloses an automatic sewage sampling tank based on pressure difference, and relates to the technical field of sewage. The automatic sewage sampling tank comprises a tank body, a liquid cavity is formed in the inner bottom wall of the tank body, a guide column is fixedly connected to the middle of the tank body, a liquid inlet is formed in the middle of the guide column, a hydraulic cover sleeving the outer side of the guide column is movably connected to the top of the tank body, and a groove matched with the guide column is formed in the middle of the hydraulic cover. According to the automatic sewage sampling tank based on pressure difference, through cooperated use of the tank and the hydraulic cover, before use, compressed gas is supplemented into the gas tank according to the depth of a to-be-collected sample; when the sampling device is used for sampling, and a set depth is reached, the hydraulic cover moves downwards under the action of water pressure, the groove is communicated with the liquid inlet, sampling is started, and compressed gas with different volumes can be filled when sampling is conducted in liquid with different depths, so that the effectof automatically sampling at a fixed depth is achieved, the sampling efficiency is improved, and the sampling work is effectively guaranteed.

The invention discloses an efficient breeding warm air furnace which comprises a furnace body. A combustion chamber is arranged in the furnace body and connected with a coal adding port located in the front portion of the furnace body. Furnace grates are arranged at the bottom of the combustion chamber. An ash box is arranged below the combustion chamber. An ash box ash removing port extending outside the furnace body is formed in the ash box. An outlet of the combustion chamber is connected with a smoke and fire channel arranged above the combustion chamber. An air outflow air flow cavity is formed among the smoke and fire channel, the combustion chamber and the furnace body. An air inflow air flow cavity is formed between a smoke channel set and the furnace body. By the adoption of the efficient breeding warm air furnace, smoke and air flow in different pipelines, gas mixture pollution is avoided, heat exchange efficiency is greatly improved and is as high as 92%, the temperature of output hot air is high, the temperature is increased rapidly, and the size is small; it can be guaranteed that oxygen in a breeding chamber is sufficient, the temperature is proper, and the requirements for breeding livestock and poultry are met.

The invention discloses an automatic bag breaking and collecting device and method for resident household garbage. The device simultaneously has three functions of garbage classified throwing, automatic bag breaking and sorting of garbage and garbage compression and volume reduction, and an integrated scheme of manual classified throwing, automatic mechanical bag breaking and sorting, compression and volume reduction, packaging and clearing and intelligent induction is adopted. The effects of classified throwing, automatic bag breaking and sorting and classified packaging and clearing of the household garbage of community residents are achieved, meanwhile, the dual characteristics of humanization and mechanization are achieved, source classification and sorting of the household garbage are facilitated, and garbage recycling and source volume reduction are facilitated. The automatic bag breaking and collecting device and method for the resident household garbage solve the problems of high management difficulty, high management cost and difficulty in realizing effective garbage source classification in the existing community resident household garbage source only depending on the consciousness of residents, and also solves the problems that source classified garbage is not compressed and subpackaged, high garbage clearing cost, heavy pollution on the way of transportation, mixed loading and terminal mixed processing in the garbage classification process and the like are caused.

The invention belongs to the field of beam tube monitoring, and particularly relates to a positive-pressure sampling pump station for a sampling system. The positive-pressure sampling pump station comprises an A-path positive-pressure sampling device, a B-path positive-pressure sampling device and a gas branching switching device. By adopting the positive-pressure sampling pump station, the A-path positive-pressure sampling device and the B-path positive-pressure sampling device can perform independent conveying work respectively, the A-path positive-pressure sampling device and the B-path positive-pressure sampling device can be combined into one path to be used for conveying, and switching between the two conveying ways is mainly completed by the gas branching switching device. The positive-pressure sampling pump station can meet the actual working condition requirement under a coal mine, the conveying ways are configured flexibly, and sampling work of a coal mine safe beam tube monitoring system can be performed conveniently.

The invention discloses a kit for rapidly separating and culturing umbilical cord mesenchymal stem cells and a use method thereof. A kit cover seals an accommodating space, a distribution device is used for separating to avoid mixed pollution, a damping device enables the distribution device to be installed more stably, a monitoring device monitors the internal temperature of a kit body, disinfectants such as alcohol are contained in a disinfectant bottle, and the disinfectant bottle is connected with a spray nozzle. An extrusion mechanism is composed of an extrusion rod and a piston, the piston moves up and down in the disinfectant bottle by pressing the extrusion rod, the disinfectants in the disinfectant bottle is sprayed into the kit body through the spray nozzle according to the differential pressure principle, the interior of the kit body is disinfected, independent sterilization is not needed, time is shortened and labor is saved, and the working efficiency can be improved.

The invention belongs to the field of beam tube monitoring, and particularly relates to a positive pressure sampling system. The positive pressure sampling system comprises a pressure pump, a pressure relief device and an automatic filtered water drainer. An inlet of the pressure pump is connected with a gas inlet, and an outlet of the pressure pump is connected with a gas inlet of the pressure relief device. A gas outlet of the pressure relief device is connected with the gas inlet end of the automatic filtered water drainer. The gas outlet end of the automatic filtered water drainer is connected with a gas outlet. A check valve is installed on a pipeline between the gas outlet and the gas outlet end of the automatic filtered water drainer. Remote and rapid conveying of gas of the beam tube system is achieved, gas mixed pollution can be avoided, and the monitoring result is ensured; due to the pressure relief device, gas inside a pump body can be exhausted when the pressure pump stops working, it is ensured that no load is formed when the pressure pump is started again, and use is safe and reliable. The invention further relates to a positive pressure sampling pump station for the sampling system. The positive pressure sampling pump comprises at least two sets of the positive sampling systems, and multi-way sampling gas conveying is achieved.

The invention discloses an exhaust method for animal houses in the field of animal husbandry breeding. Through the installation of paralleled air channels and manure channels at the bottom of the animal houses and the installation of exhaust pipes inside the air channels, the exhaust pipes are communicated with the side wall of the manure channels; ventilating buildings are built at two ends of the animal house; the air channels are communicated with the ventilating buildings; the exhaust pipes are communicated with the outside; in this way, waste air is sucked and exhausted from the bottom of the animal houses through the exhaust pipes; at the same time, heat exchange is carried out by the gas inside the exhaust pipes and the air channels. Therefore, the gas entering the animal house can be preheated or pre-cooled; on one hand, the problem that present animal houses may be polluted during ventilating or exhausting can be solved, on the other hand, the temperature of gas entering the animal houses is more suitable for the animals.

The invention provides a water washing air conditioner and a water collecting and supplementing method thereof, and relates to the technical field of air conditioner cleaning. A front water collectingtank and a rear water collecting tank which are separated are arranged in an air conditioner shell of the water washing air conditioner; when an air conditioner indoor unit operates in a refrigerating mode, the front water collecting tank and the rear water collecting tank are used for respectively collecting condensed water generated by an indoor heat exchanger; the condensed water collected bythe front water collecting tank and the condensed water collected by the rear water collecting tank can be used as a water source for cleaning the inside of the air conditioner, wherein use of the condensed water collected by the rear water collecting tank is prior to use of the condensed water collected by the front water collecting tank; the condensed water collected by the front water collecting tank is used as standby cleaning water; and only when the condensed water collected by the rear water collecting tank of the air conditioner cannot meet the water volume of the cleaning water, the condensed water collected by the front water collecting tank is used. The condensed water collected by the front water collecting tank and the condensed water collected by the rear water collecting tank are separated, the water volume is sufficient, the relatively clean condensed water on the rear side is utilized, and the condensed water on the front side is only reserved, thereby solving the problem of poor water quality caused by mixed condensed water and problems of little condensed water on the rear side and insufficient water supply.

The invention discloses a cement powder manufacturing vertical mill applied to constructional engineering. The cement powder manufacturing vertical mill comprises a machine base and a collecting and feeding hopper, an adjusting air cylinder is installed on the outer side of the machine base, a swing arm is arranged on the outer portion of the adjusting air cylinder, an auxiliary roller motor is arranged above the swing arm, a grinding roller is installed on one side of the auxiliary roller motor, a bearing part is arranged at the front end of the swing arm, a lubricating assembly is installed above the bearing part, a main machine motor is arranged on the inner side of the machine base, and a grinding disc assembly is installed above the main machine motor. The cement powder manufacturing vertical mill applied to constructional engineering has the beneficial effects that the ceramic shell is arranged in the lower barrel shell and the upper barrel shell, so that viscous materials are difficult to attach to the ceramic shell, meanwhile, the vertical mill is prevented from being damaged by some corrosive materials, small vibrators installed on the two sides of the ceramic shell are started, the ceramic shell can automatically shake, therefore, materials on the inner wall of the ceramic shell fall off, waste of leftover materials is avoided, and mixed pollution of the materials during secondary use is also avoided.

The invention discloses a liquid filtration type enclosed space air purifying method. The working principle is to design and manufacture a working system comprising a plurality of parts, namely a liquid filtration type air purifying box (1), an air conveying device (16) and a three-dimensional tent (21); according to the design, the three-dimensional tent is provided with an air charging opening (19) and an air discharging opening (20), so that people can live and rest in the three-dimensional tent; a working unit of each part is connected by a ventilation pipe (17); an intelligent controller (13) is controlled in manners of manual operation and remote control to enable the air conveying device (16) to start working, and a tent space is internally and continuously filled with fresh purified air, and discharges stale air, so that the purpose of purifying air is achieved. The method can be used for effectively absorbing various air pollutants such as formaldehyde, haze and the like, and avoiding air mixed pollution, has the advantages of saving energy, reducing noise, facilitating maintenance, being relatively low in cost and the like, and is suitable for household application.

The invention discloses a traditional Chinese medicine processing raw material screening device with the adjusting function. The traditional Chinese medicine processing raw material screening device with the adjusting function comprises a barrel body, wherein a feeding pipe is fixedly connected to the top of the barrel body, a flow dividing pipe is fixedly installed on the inner wall of the top of the feeding pipe, a water inlet pipe is fixedly connected to the left side of the flow dividing pipe, and cleaning pipes are fixedly connected to the inner wall of the bottom of the flow dividing pipe. According to the traditional Chinese medicine processing raw material screening device with the adjusting function, when the size of screening plates is adjusted, the bottom screening plate is replaced according to the needed screening size, fixing nuts outside fixing columns are screwed off, then movable clamping strips on the side edges of the bottom screening plate are moved out from the outer side of the fixing columns, the bottom screening plate is taken out from the interior of a bottom screening frame, and then a needed screening plate is installed; and in this way, the screening size can be adjusted conveniently, the situation that a screening device can only conduct screening of one specification on raw materials is avoided, the applicability of the screening device is improved, and the application value of the screening device is increased.

The invention discloses a drug crushing device for pediatric nursing, and relates to the technical field of ceramic medical treatment apparatuses. The device comprises an air handling box, wherein a grinding device is mounted at the front side of the upper end of the air handling box; a pneumatic cyclone separating device is connected to the front side of the grinding device; the grinding device comprises a guide housing which is fixed to the front side of the upper end of the air handling box; a semispherical filtering net is mounted at a through hole in a fitting manner; a grinding ball is fixed to the lower end of a connecting rod; an air outlet tube is rotatably mounted at the inner rear side of the guide housing; the pneumatic cyclone separating device comprises a pneumatic cyclone barrel, a tapered barrel and an air exhausting tube; and tapered edible sweet wrapper is arranged close to the inner sidewall of the tapered barrel. The device has the beneficial effects that air is blown through high pressure in order to remove the surface, so that the waste is reduced, and the next drug crushing operation is conveniently carried out; and meanwhile, the device is matched with the pneumatic cyclone separating device, so that drug particles can be quickly greatly separated and collected; and the edible sweet wrapper is damaged a little and achieves drug collection.

The present invention discloses a medicine breaking device for pediatric nursing and relates to the technical field of porcelain medical devices. The medicine breaking device comprises an air treatment box; a grinding device is arranged on a front side of an upper end of the air treatment box; a cyclone separation device is connected to a front side of the grinding device; the grinding device comprises a guiding shell fixed on the front side of the upper end of the air treatment box; a hemispherical filter mesh is arranged on a through-hole; a grinding ball is fixed at a lower end of a connecting rod; an air outlet pipe is rotatably arrange an inner rear side of the guiding shell; a pulse valve is arranged on an air guiding pipe; the cyclone separation device comprises a cyclone cylinder,a cone cylinder and an air exhaust pipe; and an inner side wall of the cone cylinder is fitted with cone edible sugar paper. Beneficial effects are as follows: high pressure is used for air blowing toclean surface, waste is reduced, a next medicine breaking operation is facilitated, at the same time the cyclone separation device is cooperated to separate and collect medicine particles faster andbetter, and the medicine breaking device is very small on destroy of the edible sugar paper and realizes use of the edible sugar paper for drug collection.

The invention relates to a medical clamping-type disinfection box which comprises a disinfection box main body, a mounting plate, a withdrawing tank, clamping holes, a base and a fastening plate, wherein a disinfection lamp holder is arranged at the upper end inside the disinfection box main body, and a disinfection lamp is mounted at the bottom end of the disinfection lamp holder; the mounting plate is arranged below the disinfection lamp, and a slide block is fixed on the outer side of the mounting plate; a first handle is fixed on the outer surface of the mounting plate, and a hand cushionblock is arranged on the first handle; the withdrawing tank is arranged on the inner side of the first handle, and a withdrawing button is fixed on the outer surface of the withdrawing tank; the clamping holes are formed in the upper and lower sides of the withdrawing tank; the base is arranged at the bottom end of the disinfection box main body; supporting legs are arranged on the left and rightsides below the base; and a storage tank is arranged inside the withdrawing tank. The medical clamping-type disinfection box disclosed by the invention has the beneficial effects that the clamping holes are formed in the disinfection box, and medical apparatuses and instruments can be directly inserted into the clamping holes, so that each of the medical apparatuses and instruments can be well conveniently isolated.

The invention discloses a rare earth feed liquid feeding and conveying device for rare earth separation and extraction in the technical field of conveying equipment, and discloses a rare earth feed liquid feeding and conveying device for rare earth separation and extraction, the rare earth feed liquid feeding and conveying device for rare earth separation and extraction comprises a base and a conveying pipe, and a motor frame is fixedly mounted at the left end of the conveying pipe. In the process that the air pressure in the conveying pipe is gradually reduced, the suction pipe inserted into the extraction bottle sucks the extraction agent into the conveying pipe from the upper portion, active material liquid suction is achieved when upper-layer material liquid conveying is carried out, mixed pollution of extraction material liquid caused when the upper-layer material liquid is poured from the upper portion when the material liquid is conveyed is avoided, and the extraction efficiency is improved. The purity of the extracted feed liquid during active suction of the feed liquid is guaranteed, the actual separation effect is improved, the lower-layer feed liquid attached to the inner wall of the extraction bottle in the dumping process is prevented from being mixed with the upper-layer feed liquid, the purity of the actually conveyed feed liquid is greatly improved, the extraction separation effect is improved while the feed liquid is conveyed, and the use effect is good.

An automatic sampling tank for sewage based on pressure difference, relates to the technical field of sewage, and includes a tank body, the inner bottom wall of the tank body is provided with a liquid cavity, the middle part of the tank body is fixedly connected with a guide column, and the middle part of the guide column is provided with For the liquid inlet, the top of the tank body is movably connected with a hydraulic cover sleeved with the outer side of the guide column, and the middle of the hydraulic cover is provided with a groove matching with the guide column. The automatic sampling tank for sewage based on pressure difference is used in conjunction with the hydraulic cover. Before use, the compressed gas is added to the gas tank according to the depth of the sample to be collected, so that the sampling device reaches the set depth when sampling. , the hydraulic cover moves downward under the action of water pressure, so that the groove is connected to the liquid inlet, and sampling starts. When removing liquids of different depths, different volumes of compressed gas can be filled, so as to achieve the effect of automatic sampling at a certain depth. , improve the sampling efficiency, effectively ensure the sampling work.

The invention discloses a raw material screening device for traditional Chinese medicine processing with adjustment function. A water inlet pipe is fixedly connected to the left side of the water tank, and a cleaning pipe is fixedly connected to the inner wall of the bottom of the shunt pipe. The raw material screening device for traditional Chinese medicine processing with adjustment function, when adjusting the size of the sieve plate, replace the bottom sieve plate according to the required screening size, unscrew the fixing nut outside the fixed column, and then turn the side of the bottom sieve plate The movable clip strips are removed from the outside of the fixed column, and then the bottom sieve plate is taken out from the inside of the bottom sieve frame, and then the required sieve plate is installed, which facilitates the adjustment of the size of the screen and avoids the fact that the sieve device can only The situation of screening raw materials of one specification further improves the applicability of the screening device and increases the applicable value of the screening device.

The invention discloses an organic-matter-halogen electrolyte and an application of the organic-matter-halogen electrolyte to a flow battery. The electrolyte is prepared from an organic matter and a halide, which are dispersed in an organic solvent, wherein the organic matter is benzophenone; the halide is lithium bromide, lithium iodide, or lithium chloride; and the organic solvent is acetonitrile, propylene carbonate, ethylene carbonate, dimethoxyethane, dimethyl carbonate, or diethyl carbonate. By taking the mass of the whole electrolyte as a standard, the mass percentage of the organic matter is 0.1-30%, and the mass percentage of the halide is 0.5-30%. Compared with the prior art, in the technical scheme of the invention, a double flow battery system, taking the organic matter as a negative electrode active material and taking the halide as a positive electrode active material, has advantages of high open-circuit voltage, high power density, and high energy density; cost of active matters is greatly reduced; and the electrolyte is not limited by mineral resources of transition metals.

A household environment-friendly mobile organic fertilizer collector comprises a liquid medicine box located in the upper portion of one side, the bottom end of the liquid medicine box is communicated with a pedestal pan box, a sewage inlet is formed in the inner side of the pedestal pan box and connected with a pipeline, the pipeline is inserted into a sediment treatment box located at one side of the liquid medicine box, a vacuum pump communicated with the pipeline is arranged in the inner side of the sediment treatment box, the lower portion of the sediment treatment box is communicated with a water filter box, sewage passing through a filter screen flows out through a water outlet pipe communicated with one side of the water filter box, the lower portion of the water filter box is communicated with a secondary dehydration box, a spin dryer is arranged in the inner side of the secondary dehydration box, solid dirt dried by the spin dryer enters a compression box, and a vacuum compressor is arranged in the compression box. The collector is compact in structure, dry and wet separation is carried out through a series of equipment including the sediment treatment box, the water filtering box, the secondary dehydration box and the compression box, urban underground water sources and rivers are effectively prevented from being mixed and polluted, and urban organic garbage can be effectively recycled and fully utilized.

The invention relates to the technical field of flushing-free sanitary toilets, and particularly relates to an antibacterial flushing-free urinal capable of automatically collecting urine and isolating urine odor. The bottom of the urinal is connected with an antibacterial biological treatment box, a floating ball urine discharging valve and a biological antibacterial odor blocking agent are arranged in the antibacterial biological treatment box, when the liquid level of the urine rises, the urine discharging floating ball is driven to rise, the urine discharging valve is automatically opened due to the lever effect of rising of the floating ball, and the urine is automatically discharged out of the antibacterial biological treatment box; and after the liquid level of urine drops, the urine discharging valve with the floating ball is automatically closed under the lever action of dropping of the floating ball. The urinal can effectively isolate the odor and peculiar smell of urine, ensures the environmental sanitation of the toilet, and solves the problems of waste of a large amount of water resources and diffusion of mixed pollution of urine and water in the urinal of the water flushing toilet in the prior art, and theproblems that a non-flushing urinal in the existing toilet field is heavy in peculiar smell and not sanitary enough, and a flushing-free urinal odor is high in consumable cost and frequent in replacement of blocking biological products are solved..

The invention relates to a handheld device for electro-brush plating and restoring, which comprises a housing and a hand shank, wherein an electrode tip is arranged at the front end of the housing; an electrode tip anode identifying ring and an electrode tip cathode identifying ring connected with the electrode tip are arranged at the end part of the housing; a micro-processor control module connected with the electrode tip anode identifying ring and the electrode tip cathode identifying ring is also arranged on the housing; a solution pipe is arranged inside the housing; the front end of the solution pipe is a round table; the rear end of the solution pipe is an opening; a piston is arranged inside the solution pipe; a piston is connected with a push rod; the lower bottom surface of the push rod is tooth-shaped; a trigger is arranged under the end part of the push rod; a trigger baffle sheet is fixed on the trigger; a resetting baffle sheet is arranged at one side of the trigger; the push rod extends out of the opening at the rear end of the solution pipe and in sequentially contact with a resetting baffle sheet and the trigger baffle sheet; the upper end part of the baffle sheet is located inside a sawtooth of the push rod; the upper end of the resetting baffle sheet is matched with the sawtooth of the push rod, and a spring is arranged on a rotating shaft of the trigger. The handheld device for electro-brush plating and restoring has the advantages of being uniform in electroplating, precise in electroplating voltage control, easy to operate, and the like.

The invention belongs to the field of 3D printing, and specifically discloses a one-time multi-material 3D printing mechanism based on a mechanical arm. The one-time multi-material 3D printing mechanism comprises a data processing system, a control system, a dynamical system, a mechanical arm and an extrusion system, wherein the data processing system is used for presetting a printing path according to material characteristics; the control system is used for controlling the extrusion system to print according to the preset printing path by virtue of the dynamical system and the mechanical arm;the extrusion system comprises a multi-nozzle assembly, the multi-nozzle assembly is installed on the tail end of the mechanical arm and comprises a plurality of mutually independent single-nozzle units, each single-nozzle unit comprises a printing nozzle and a storage hopper which are connected with each other, and the diameters of the printing nozzles are varied. According to the one-time multi-material 3D printing mechanism, modeling software is combined with the mechanical arm, and additionally, the multi-nozzle assembly is designed, so that the extrusion speed of multiple nozzles with different diameters is adjusted on the basis of a one-time fixed moving speed, and the printing precision and the printing speed are increased.

The invention discloses a medicine crushing device for pediatric nursing, which relates to the technical field of porcelain medical instruments. It includes an air treatment box; a grinding device is installed on the front side of the upper end of the air treatment box; the front side of the grinding device is connected with a cyclone separation device; the grinding device includes a guide shell fixed on the front side of the upper end of the air treatment box; There is a hemispherical filter screen; a grinding ball is fixed at the lower end of the connecting rod; an air outlet pipe is rotated and installed on the rear side of the guide shell; a pulse valve is installed on the air guide pipe; the cyclone separation device includes a cyclone cylinder, a conical cylinder and an exhaust tube; the inner side wall of the conical tube is fitted with a conical edible sugar paper. The beneficial effects of the present invention are: high-pressure blowing is used to remove the surface, reduce waste, facilitate the next medicine crushing operation, and at the same time cooperate with the cyclone separation device to separate and collect medicine particles faster and better. The damage is very small, and the utilization of edible sugar paper for drug collection is realized.

The invention discloses a two-in-one faucet. A faucet body is included, a valve element assembly is arranged in the faucet body, and the valve element assembly is connected with a valve element in a matched mode. The valve element is connected with a handle switch in a matched mode. A first pipeline and a second pipeline are arranged in the faucet body; and the second pipeline is connected with adrawing head in a matched mode. The water outlet end of the first pipeline is fixed; the water outlet end of the second pipeline moves along with the change of the position of the drawing head; and opening and closing of a first pipeline waterway and opening and closing of a second pipeline waterway are controlled by the handle switch connected with the valve element in a matched mode. By means ofthe structural design, the first pipeline waterway and the second pipeline waterway are separated, in the specific embodiment, purified water and tap water are separated and do not influence each other, the safety of water quality is guaranteed, meanwhile, the structure of the multi-water-way functional faucet drawing head is simplified, and a user can conveniently use and control the drawing head.

The invention discloses a combined control device based on a green medium. The combined control device comprises an electromagnetic reversing valve, a hydraulic control reversing valve, a pilot control valve group and a servomotor, wherein an oil inlet of the electromagnetic reversing valve communicates with a control oil source, and an oil outlet control port of the electromagnetic reversing valve is connected with an oil inlet control port of the hydraulic control reversing valve; a water inlet of the hydraulic control reversing valve is connected with a constant-pressure control water source, a first control water outlet and a second control water outlet of the hydraulic control reversing valve are respectively connected with working cavity control ports of a first hydraulic control two-way valve and a second hydraulic control two-way valve; a working cavity water inlet connector of the first hydraulic control two-way valve is connected with a pressure water source, a working cavitywater outlet connector of the first hydraulic control two-way valve is connected with the second hydraulic control two-way valve and a cavity opening connector of the servomotor, and a working cavitywater outlet connector of the second hydraulic control two-way valve is connected with a water return opening. The combined control device disclosed by the invention solves the problems of medium failure caused by mutual leakage and serious pollution caused by leakage into the environment when oil media are adopted in an existing hydraulic control system for coupling.

The invention relates to an automatic sauce adding machine comprising a rack, wherein a plurality of sauce bins are arranged on the rack, a residue detection device used for detecting sauce residue isarranged in each sauce bin, a discharge hole is formed in the bottom of the sauce bin, a solenoid valve is arranged on the discharge hole, a discharge switch is arranged below the solenoid valve, therack is also provided with a single chip microcomputer and a power supply module, and the single chip microcomputer is connected with the residue detection device, the solenoid valve and the discharge switch. According to the invention, sealed and independent sauce bins are adopted for storing sauce, so as to avoid mixed pollution of the sauce and avoid sauce dripping and spilling due to hand shaking, and therefore, sauce adding is simpler and more convenient.