85results about How to "Reduce cleanup costs" patented technology

The utility model discloses a raw material lifting device for ultra-white glass production, which comprises a blanking bin and a climbing belt conveyor obliquely arranged in the blanking bin, a plurality of hoppers are uniformly arranged on the outer belt surface of the climbing belt conveyor, a scraper matched with the hoppers is arranged on the blanking bin, the scraper comprises a telescopic rod, a scraping rod and an elastic piece, and the telescopic rod is connected with the scraping rod. One end of the telescopic rod is rotationally connected with the blanking bin, the other end of the telescopic rod is rotationally connected with the scraping rod, one end of the elastic piece is connected with the blanking bin, the other end of the elastic piece is connected with the scraping rod, and the scraping rod abuts against the hopper. According to the raw material lifting device, sharp raw materials in a hopper on the climbing belt conveyor can be scraped off, so that no or less redundant raw materials exist in the hopper, the phenomenon that the raw materials fall off from a belt due to vibration of a machine when the climbing belt conveyor is used for conveying is avoided, and on one hand, a working site is guaranteed; and secondly, the cleaning and recycling cost of workers is reduced.

The utility model discloses a water-free humidifying oxygen generator which comprises an oxygen generating box, an air inlet is formed in the left side of the oxygen generating box, a high-pressure fan is installed in the oxygen generating box body and corresponds to the air inlet in position, a coarse filter is installed on the right side of the high-pressure fan, a compressor is installed on the right side of the coarse filter, and a water outlet is formed in the right side of the compressor. The right side of the compressor is connected with a condenser, the right side of the condenser is provided with an atomizer, the atomizer is connected with an air outlet pipe, and the oxygen generation box is provided with a controller. According to the oxygen generator, water vapor in compressed air is condensed and separated out through the condenser, condensed water drops are changed into mist through the atomizer, the problem that oxygen prepared by the oxygen generator is dry is solved, meanwhile, a humidifying cup does not need to be externally connected, dirt is prevented from being left after water in the humidifying cup is treated, the cleaning cost is reduced, and the cleaning efficiency is improved. Equipment performance fluctuation caused by water evaporation or temperature change is avoided, and the running stability of the oxygen generator is improved.

The invention discloses electric vehicle special-shaped pipe machining and welding equipment, and relates to the technical field of electric vehicle pipe welding, the electric vehicle special-shaped pipe machining and welding equipment comprises a machine shell, the inner wall of the machine shell is rotatably connected with a rotating shaft, the outer surface of the rotating shaft is fixedly connected with a protective cover, and the upper surface of the machine shell is fixedly connected with a pressing part; in the process that the surrounding device drives the rolling wheels to rotate circumferentially, the rolling wheels can be made to roll in the mode of being attached to the outer surface of the special-shaped pipe. Therefore, the extrusion force of the special-shaped pipe on the roller can change along with the change of the contact position of the roller and the surface of the special-shaped pipe, and the extruded roller can drive the moving box and the welding gun to move, so that the welding gun can automatically adjust the position of the welding gun according to the position, needing to be welded, of the special-shaped pipe; the rotary welding center and the center of the connecting position of the special-shaped pipes are always kept coincident, and it is guaranteed that in the process that the equipment conducts rotary welding on the special-shaped pipes with different diameters, weld joints at the connecting position are always kept complete and coherent.

The invention discloses an automatic material carrying device of an energy storage module production line, and belongs to the technical field of energy storage module carrying equipment, and the automatic material carrying device of the energy storage module production line comprises a fixing frame, a first hydraulic cylinder, a bracket, a conveyor belt, an adjusting mechanism and a pressing mechanism. According to the automatic material carrying device of the energy storage module production line, through the arrangement of the fixing frame, the bracket, the conveying belt, the adjusting mechanism and the pressing mechanism, the energy storage module can be rapidly shoveled up and moved, the manual carrying time and labor cost are reduced, the energy storage module can be extruded and fixed through the pressing mechanism, and therefore the energy storage module can be conveniently carried. And the situation that the energy storage module shakes or falls off in the carrying process is avoided, and the carrying safety is guaranteed.

This utility model discloses a highway bridge with convenient drainage, comprising a beam body and concrete and asphalt layers arranged sequentially from bottom to top on the beam body. Drainage ditches are provided on both sides of the beam body, with a filter layer at the top of the drainage ditches. A water collection trough of a certain height is reserved above the filter layer. Multiple drainage holes are spaced along the length of the bridge on the filter layer, with filter plugs inside the drainage holes. A drain pipe is provided at the bottom of the drainage holes, with the outlet of the drain pipe extending to the pier foot and connecting to a collection pool. This utility model has a simple structure, high ease of construction, short construction period, and low construction cost. It ensures good drainage effect and is very easy to clean, greatly reducing cleaning costs. The addition of a rainwater collection pool at the pier foot of the highway bridge enables rainwater recycling, which is environmentally friendly and prevents foundation corrosion at the pier foot, thus improving the service life of the bridge.

The invention discloses a cleaning device for plasma knife production, which belongs to the technical direction of plasma knife production. The device comprises a plasma knife cutting device, a first cleaning table and a second cleaning table. A first cleaning pipe is fixedly installed on the first cleaning table, and a second cleaning pipe is fixedly installed on the second cleaning table. The plasma knife cutting device is also provided with a cleaning box, a first water pipe, a first water pump, a first gear, a first paddle wheel, a second water pipe, a second water pump, a second gear, a second paddle wheel, a first motor, a third gear, a first fan, a second motor, a fourth gear and a second fan. Through the coordinated use of four groups of electric valves, the two groups of cleaning tables can be automatically flushed to different degrees to avoid metal debris rusting and adhering to the surfaces of the two groups of cleaning tables due to humidity in the workshop, thereby improving the cleaning efficiency, centrally collecting the waste liquid generated during deep cleaning, facilitating subsequent secondary utilization, reducing the cleaning cost of the factory and reducing the waste of resources.

The utility model discloses a closed-cell sound insulation sponge gradient pressure foaming preparation device which comprises a foaming barrel, the top surface of the foaming barrel is fixedly connected with a mounting frame, the foaming barrel is rotatably connected with a rotating rod, the rotating rod is rotatably connected with the mounting frame, the rotating rod is slidably connected with a pressure plate, and the pressure plate is fixedly connected with the foaming barrel. A block-shaped stirring rod is connected to the rotating rod in a sliding mode, a discharging valve is arranged on the foaming barrel, the foaming device further comprises a stirring assembly and a moving assembly, the stirring assembly is used for stirring a sponge material in the foaming barrel, and the moving assembly is used for driving the block-shaped stirring rod to move up and down in the foaming barrel. By arranging the stirring assembly and the moving assembly, sponge materials in the foaming barrel can be stirred in multiple directions, the mixing uniformity of the sponge materials is improved, sponge foaming is more uniform, the quality of closed-cell sound insulation sponge is guaranteed, meanwhile, attachments on the inner wall of the foaming barrel can be effectively scraped by adjusting the positions of stirring blades, and the foaming efficiency is improved. And material waste and cleaning cost are reduced.

The present application discloses a seaweed active ingredient and a gradient extraction process thereof, and belongs to the field of seaweed extraction technology. The gradient extraction process of the seaweed active ingredient comprises the following steps: harvesting freshly salvaged seaweed, washing impurities on its surface with seawater, then slicing and adding sodium carbonate solution to stir, to obtain seaweed slurry; adding ethanol thereto and stirring, and obtaining a precipitate and an ethanol extract 1 after extrusion; adding ethanol to the precipitate and stirring, and then centrifuging to obtain a crude alginate extract and a supernatant 1, which is evaporated to recover ethanol and obtain a crude fucoidan extract; adding water to the ethanol extract 1 and stirring, and then centrifuging to obtain a crude fucoxanthin extract and a supernatant 2, which is evaporated to recover ethanol and obtain a crude brown algae polyphenol extract. The gradient extraction process can obtain crude extracts of multiple active ingredients at the same time, and does not require the use of a large amount of fresh water resources and toxic reagents, does not generate waste, is simple to operate, and has low cost, which is conducive to promotion and application.

The utility model relates to the technical field of circulating water aquaculture, especially to a filter device for circulating water aquaculture convenient to clean, solve the problem that the filter screen in the filter equipment and the vertical direction exist angle in the prior art, and the filter equipment internal structure is relatively complex, needs to disassemble multiple components when cleaning, and the operation is complicated and time -consuming is longer, not only reduces the cleaning efficiency, still increased the problem of aquaculture personnel's labor intensity. A filter device for circulating water aquaculture convenient to clean, including the cylinder, the top of cylinder is fixedly connected with the top plate, and the top plate's top side is fixedly connected with hydraulic oil cylinder through bolt, and the inside of cylinder is equipped with the bearing frame. The utility model through the cooperation of hydraulic oil cylinder and drive motor, realized the cleaning function of filter device, the impurity on the inner wall of cylinder and filter plate can be cleaned completely in the process of rotation and up and down movement of brush, greatly improved the cleaning efficiency and convenience, and the connection between parts is reliable.

The utility model provides a micro-arc oxidation electrolyte cooling device, comprising: a liquid storage assembly having a first liquid storage space and a second liquid storage space, the first liquid storage space being used for accommodating a cooling liquid, and the second liquid storage space being used for accommodating an electrolyte; the circulating pump is provided with a first liquid inlet end and a first liquid outlet end; one end of the first circulating pipeline is communicated with the second liquid storage space, the other end of the first circulating pipeline is communicated with the first liquid discharging end, and at least part of the first circulating pipeline is located in the first liquid storage space; one end of the second circulation pipeline is used for communicating with the second liquid storage space, and the other end of the second circulation pipeline communicates with the first liquid inlet end; the first circulation pipeline is used for being in heat conduction contact with cooling liquid. According to the micro-arc oxidation electrolyte cooling device provided by the embodiment of the invention, based on the arrangement, the electrolyte can be efficiently cooled, the cooling efficiency is improved, and meanwhile, good maintainability is achieved.

An improved scraper includes vertical plates and rings. The upper and lower sides of the vertical plates are respectively fixed to the outer walls of the rings. A scraper structure is connected to the inner wall of each ring. The scraper structure includes a rod and a cylinder. The outer end of the rod is rotatably connected to the inner wall of the ring, and the outer wall of the rod is fixed to the inner wall of the cylinder. This ensures that the left scraper remains in contact with the outer wall of the square heat pipe. After the right scraper moves to the end of the square heat pipe, the vertical plates are pushed to the left. At this time, the vertical plates, together with the left rod and cylinder, move the left scraper to the left, keeping it in contact with the square heat pipe. The left scraper and the vertical plates are then subjected to force, which removes the scale layer from the outer wall of the square heat pipe, thus cleaning the surface of the square heat pipe. This scraper reduces the cost of cleaning heat exchange pipes, reduces labor, and improves the cleaning effect.

The utility model provides a micro-arc oxidation electrolyte cooling device. The micro-arc oxidation electrolyte cooling device comprises a first tank body; the second tank body is arranged in the first tank body, a first liquid storage space is formed between the first tank body and the second tank body, a second liquid storage space is formed in the second tank body, the first liquid storage space is used for containing cooling liquid, and the second liquid storage space is used for containing electrolyte; and the second groove body is made of a metal material. According to the micro-arc oxidation electrolyte cooling device provided by the embodiment of the invention, on the basis of the arrangement, the electrolyte can be cooled, meanwhile, good cleanliness and use convenience are achieved, and the cooling operation cost of the electrolyte can be reduced.

The utility model relates to the technical field of excrement cleaning, in particular to an excrement backflushing system applied to a pasture. The device can reduce the use amount of flushing water and the output of sewage, is more environment-friendly, and effectively reduces the excrement cleaning cost; comprising a movable chassis, a manure scraping mechanism installed on the movable chassis, a spiral conveyor, a dehydrator, a water tank and a flushing assembly, the manure scraping mechanism is used for scraping and gathering manure on the ground to a feeding port of the spiral conveyor, the discharging end of the spiral conveyor is communicated with the feeding end of the dehydrator, and the liquid phase discharging end of the dehydrator is communicated with the interior of the water tank; the flushing assembly comprises a booster pump and a flushing pipe set, the input end of the booster pump extends into the water tank, and the output end of the booster pump communicates with the input end of the flushing pipe set; the manure scraping mechanism comprises a frame body, a swing arm installed on the frame body in a hinged mode, a scraping plate installed on the swing arm in a hinged mode, a first telescopic cylinder and a second telescopic cylinder.

The utility model provides a kind of coal mine directional gas extraction borehole gas, water, residue separation system, belong to gas extraction technical field, to solve the problem of poor construction environment, artificial cleaning intensity of coal mine underground gas extraction directional turning hole, the utility model discloses coal mine directional gas extraction borehole gas, water, residue separation system includes primary separator, gas collector, secondary separator, residue slurry tank and coal slime vibrating screen, realizes the integration of residue discharge, drainage and gas extraction in directional drilling construction and assembly line operation, improves drilling environment, guarantees safety production, and reduces comprehensive cost.

The invention discloses a smoke filtering and processing device based on the casting production process of cast iron ductile manhole covers, relates to the technical field of smoke filtering and processing, comprises a filter body and an air inlet pipe, the top of the filter body is fixedly connected with an air outlet pipe, and the smoke filtering and processing device based on the casting production process of cast iron ductile manhole covers also comprises: a pretreatment replacement mechanism and an angle adjustment mechanism, through the setting of the pretreatment replacement mechanism and the angle adjustment mechanism, the filter net is pre-cleaned in advance before being taken out, thereby saving the time of staff cleaning the filter net, reducing the difficulty of cleaning the filter net, saving operation steps, and at the same time, through the pre-filtration of the smoke, the cleanliness of the smoke when entering the filter body can be improved, thereby reducing the inspection and replacement frequency of the filter element in the filter body, avoiding the frequent disassembly and fixing of multiple bolts in the existing filter body, and reducing the cost of inspection and maintenance.

The invention relates to the technical field of biomass fluidized beds, and discloses an internal circulation biomass fluidized bed device coupling coal-fired boiler gas supply device and method, the internal circulation biomass fluidized bed device coupling coal-fired boiler gas supply device comprises: a non-equidistant screw feeder for conveying biomass raw materials; and the output end of the non-equidistant spiral feeder is fixedly connected with the gasification furnace. According to the internal circulation biomass fluidized bed device coupling coal-fired boiler air supply device and method, the stirring device is arranged, air flows sprayed out through the oblique air spraying opening enable materials to generate rolling and fluidizing effects in a gasification furnace, the materials make more sufficient contact with the air, the reaction rate and gasification efficiency are improved, and the gasification efficiency is improved. The airflow can stir the materials, prevent the materials from accumulating or dead angles in the gasification furnace and keep the reaction environment in the gasification furnace stable, and the airflow can optimize heat transfer and material reaction and reduce energy waste, so that the efficiency and reliability of the whole system are improved.

This utility model discloses a threading device for anchor bolts, relating to the field of threading machine technology. It includes a processing table and a clamping assembly. A bolt threading machine is mounted on the upper surface of the processing table. A protective cover retainer is fixedly connected to the outer wall of the bolt threading machine near one end. A transparent protective cover is movably inserted into the inner wall of the protective cover retainer, and the transparent protective cover is slidably connected to the upper surface of the processing table. By using a transparent protective cover and a protective cover retainer, along with auxiliary limiting components (limiting rod, limiting spring, and receiving hole), this utility model can quickly and stably fix the transparent protective cover in a suitable position, effectively preventing debris from flying during the threading process, providing a safe working environment for operators, reducing pollution to the working environment, and lowering cleaning costs.

The utility model discloses a die pressing device for refractory brick production. The die pressing device comprises a rack, a die assembly, a hydraulic assembly, a discharging assembly and a feeding assembly, wherein the die assembly, the hydraulic assembly, the discharging assembly and the feeding assembly are arranged on the rack. The feeding assembly drives a feeding frame through a mounting plate, a pushing air cylinder and a sliding structure, refractory brick materials are accurately fed into a mold cavity of the mold assembly, and scattering of the materials is avoided. The mold assembly comprises an upper mold, a lower mold, a demolding plate and a material surrounding plate, and the material surrounding plate standardizes materials and is matched with the excess material recycling structure to collect overflowing materials. The excess material recycling structure is composed of a recycling plate, a recycling opening, a collecting plate, a collecting pipe and a collecting box, materials overflowing from the side edge of the material surrounding plate are automatically recycled, and waste is reduced. The hydraulic assembly drives the upper mold and the demolding plate through the first hydraulic cylinder and the second hydraulic cylinder and is matched with the limiting rod to ensure stable pressing and demolding. Through precise feeding, efficient excess material recovery, stable pressing and automatic operation, the production efficiency of refractory bricks is remarkably improved, and material waste and manual cleaning cost are reduced.

This utility model discloses a pouring funnel device for the top of a structural column, relating to the field of building construction. The device includes L-shaped side plates and a front panel disposed inside the L-shaped side plates. The L-shaped side plates and the front panel are connected by a rotating shaft, with the L-shaped side plates fixedly connected to the rotating shaft and the front panel rotatably connected to the rotating shaft. First angle steel is welded to the outer side of the apex corners of both L-shaped side plates near the template, and second angle steel is welded to the outer side of the bottom corners of both L-shaped side plates near the template. Two L-shaped handles are welded to the front panel. This utility model, employing the above-described pouring funnel device for the top of a structural column, enables the concrete at the top of the structural column to be formed in one step, avoiding secondary chiseling, simplifying the construction process, improving construction efficiency, reducing material waste, thereby reducing construction costs, reducing construction waste, and achieving the goal of green construction with increased benefits and efficiency.

This utility model relates to the field of water conservancy engineering technology, and in particular to an algae collection device, comprising a first outer shell, a second outer shell fixedly connected to the top of the first outer shell, the first and second outer shells being interconnected, two collecting rollers movably installed inside the first outer shell, two drive shafts movably installed inside the first outer shell, and a cutting blade holder fixedly connected to the bottom of the drive shafts movably; a second drive shaft movably installed inside the second outer shell, multiple stirring blocks fixedly connected to the outer wall of the second drive shaft, an auger movably installed inside the second outer shell, and a drain pipe opened at the bottom of the second outer shell; a drive assembly is installed between the collecting rollers, drive shafts 1 and 2, and the auger. This utility model, through the drive assembly driving the collecting rollers, cutting blade holder, stirring blocks, and auger to work together, achieves the collection of algae with roots, chopping and processing, and separation of chopped algae from sediment, solving the problem of incomplete algae removal in existing algae collection devices, and contributing to the improvement of the river ecological environment.

The utility model discloses a breather valve automatic cleaning system, and relates to the technical field of breather valves, and the breather valve automatic cleaning system comprises a storage tank, a steam conveying pipeline, a nitrogen conveying pipeline, a three-way solenoid valve, a decentralized control cabinet, a bleeder, a gas opening valve, a gas closing valve, a breather valve, a normally open root valve, a first connecting pipeline, a second connecting pipeline and a pressure detector; a decentralized control system is arranged in the decentralized control cabinet, the pressure detector is arranged at the top of the storage tank, the decentralized control system is connected with the pressure detector and the three-way electromagnetic valve, the two ends of the first connecting pipeline are connected with the storage tank and the breather valve respectively, the gas stop valve is arranged on the first connecting pipeline, and one end of the diffusing pipe is communicated with the first connecting pipeline; the three-way electromagnetic valve is arranged at the joint of the steam conveying pipeline, the nitrogen conveying pipeline and the second connecting pipeline, and the output end of the second connecting pipeline is connected to the breather valve. The cleaning efficiency of the breather valve can be effectively improved, meanwhile, the cleaning cost of the breather valve is reduced, and the operation risk of workers is also reduced.

The utility model relates to the field of machining, and discloses a numerical control lathe waste chip discharging and recycling mechanism which comprises a numerical control lathe, an empty groove is formed in the inner wall of the bottom of the numerical control lathe, a horizontal guide rail is fixedly arranged on the numerical control lathe, a machining device is connected to the guide rail in a sliding mode, and an air cylinder is fixedly installed on one side of the numerical control lathe. A vertical sliding groove is formed in the back face of the numerical control machine tool, a top plate is fixedly arranged at the position, corresponding to the position over the sliding groove, of the top of the numerical control machine tool, and a collecting assembly and a moving assembly are further included. A driving gear drives a driven gear connected with a main shaft to rotate in the rotating process, so that the driven gear drives a push plate connected with an auxiliary rack to uniformly push sweeps in an empty groove, the sweeps are effectively and uniformly managed, manpower resources are saved, the risk that the hands of operators are scratched when the sweeps are collected is avoided, and meanwhile, the working efficiency is improved. And the accumulation of scraps is reduced, and the cleaning and maintenance cost is also reduced.

The utility model provides a surface mine water-containing blast hole mixed emulsion explosive loading device which comprises a frame body, a roller and a limiting rod, the roller and the limiting rod are arranged on the frame body, the roller and the limiting rod are arranged in parallel, and the limiting rod is connected with the frame body in a sliding mode. When the device is used during operation, the explosive conveying pipe of the mixed loading explosive truck can be effectively prevented from being in contact with a blast hole opening (wall), the phenomenon that dross and gravels slide down to the bottom of the blast hole to block the hole is avoided, and the explosive conveying pipe of the mixed loading explosive truck does not need to reach the bottom of the blast hole during blasting operation; the loading efficiency of the mixed loading emulsion explosive truck is improved, the labor intensity of blasting workers is reduced, and the blast hole bottom loading quality is improved.

The utility model discloses a highway road safety protection device for environment-friendly construction, which comprises a track body arranged around a highway road construction foundation pit, a protection body is fixedly arranged on the track body, and the periphery of the highway road construction foundation pit is enclosed by the protection body. The rail body is provided with a long-strip-shaped rail plate, the two sides of the rail plate are bent ends used for limiting the lower end of the protection body, a plurality of fixing columns are fixed in the middle of the rail plate, the lower ends of the fixing columns are in a tapered shape, and the tapered lower ends can enable the rail plate to be fixedly installed around a highway road construction foundation pit conveniently. The upper end of the fixing column is provided with external threads; and the protective body is fixed through a nut after penetrating into the upper end of the fixed column. The method can be applied to the field of highway road construction safety protection, the overall stability of safety protection is improved, the good construction environment in the foundation pit is maintained, the foundation pit collapse risk is reduced, and construction safety and smooth proceeding are guaranteed. Installation is convenient, and complex tools and a large amount of manpower are not needed.

The utility model belongs to the technical field of flexible efficient punching and nailing integrated equipment for wooden toys, and discloses efficient punching and nailing integrated equipment for wooden toys with a flexible positioning function, which comprises a numerical control platform, and one side of the bottom end of the numerical control platform is provided with a feed port through a support. A containing table is installed at the position, under the feeding port, of the top end of the numerical control platform, a U-shaped groove is formed in the top end of the numerical control platform, a clamping mechanism is installed in the U-shaped groove, and a discharging port is formed in one side of the bottom end of the U-shaped groove. According to the device, wooden toys with different shapes and sizes can be clamped, wood chips remaining on the surface of a workbench and in a U-shaped groove during punching are swept into a first waste box and a second waste box, the wood chips remaining on the surfaces of the wooden toys are absorbed into a dust collection box, the adaptability of the device is improved, cleanliness of the surface of a numerical control platform is guaranteed, and the working efficiency is improved. The cleaning cost is reduced, and the product quality after punching and nailing is improved.

The utility model discloses an industrial solid waste belt conveying and distributing device which comprises a base, a supporting seat and a metering scale. A supporting frame is arranged at the top of the base, and a steel plate bin is arranged on the inner side of the supporting frame. A feeding part is arranged at the top of the supporting seat, and a belt conveyor is arranged on one side of the feeding part; a motor A of the conveying mechanism drives a belt to rotate, a rotating wheel is connected with the belt, the rotating wheel can effectively support and assist the belt to rotate stably, and a baffle is matched for use, so that solid waste is further shielded, and industrial solid waste loss and cleaning cost are reduced; the inclined part connected between the two supporting frames is ingenious in design, solid waste on the belt can smoothly slide to the feeding opening in the top of the pipeline by means of gravity, extra power is not needed, and time and energy are saved; the opening and closing states can be quickly switched through the pneumatic three-way valve connected to the bottom of the pipeline according to the actual requirements of operators, solid waste is conveyed to different target positions, and the conveying efficiency is greatly improved.

The application provides a device and method for improving cleaning efficiency of a decomposition tank, and relates to the technical field of alumina production, solves the technical problem that the existing decomposition tank cleaning device cannot accurately flush the scaling area and the flushing effect on stubborn scaling is limited. The application comprises a cleaning nozzle, a rotating disc arranged in a lifting manner, and a scraping disc rotatably arranged on the rotating disc; the scraping disc comprises a hinge rod connected to the rotating disc and a plurality of groups of scraping knives rotatably arranged at an inclination angle alpha with the hinge rod; the hinge rod is arranged at an inclination angle beta with the horizontal plane, and the sum of alpha and beta is 90 degrees; the cleaning nozzle is arranged on the hinge rod. The application greatly reduces the cleaning cost, reduces the labor input, shortens the construction period, reduces the cleaning risk, ensures the safety of workers, uses mechanical tools for cleaning, reduces the generation of waste water and waste gas, and is beneficial to environmental protection.

The application discloses a kind of clinical trial key data automatic checking system, belong to clinical trial data quality control field.The application includes: logic check module (L23), check the logic relationship between data items (such as death date cannot be later than test end date);Scope check module (L24), check whether value is in preset normal range (such as body temperature 35-42°C);Cross-form consistency check module (L25), check the consistency of the same data item in different CRF forms;Real-time prompt module (L26), feedback error in time when data entry;Quality report generation module (L27), generate data quality report.The application realizes data quality pre-control, discovers and corrects error in real time in data entry stage, reduces later data cleaning workload, improves clinical trial data quality.

The present invention discloses an air conditioning purification and ventilation device, including an exhaust duct, a filter slot is provided in the middle of the exhaust duct along the vertical direction, and a flip shell is provided on the upper end surface of the filter slot, and a cylindrical chamber connected to the filter slot is provided in the middle of the flip shell; a dust filter assembly, the dust filter assembly includes a suspension and a filter frame, the suspension is installed in the flip shell, and the suspension is longitudinally slidably connected to the flip shell, and the filter frame is fixedly installed at the lower end of the suspension. The present invention has an automatic flip filter frame, which is convenient for dust accumulated inside the filter frame to be flipped to the outside, and ensures that the dust accumulated on the filter frame can be discharged to the outside when the air conditioner is exhausted, thereby achieving the purpose of automatically purifying the internal environment of the exhaust duct, and the filter frame does not need to be disassembled during the entire cleaning process, which greatly increases the continuous use time of the exhaust duct and saves cleaning costs.

The invention discloses an intelligent weighing and sampling device for garlic granules, and relates to the technical field of garlic sampling. The device comprises a machine body, a transport seat is arranged on the upper surface of the machine body, a weighing plate is arranged on the upper surface of the transport seat, and a sample pushing and maintaining mechanism and a cleaning and collecting mechanism. The cleaning and collecting mechanism is driven by the sample pushing and maintaining mechanism, so as to realize the combination of automatic sampling and cleaning of garlic granules after sampling. The process reduces the steps of manual operation, avoids the situation that after sampling, some garlic granule fragments in the sampling box body are still retained in the sampling box body, prevents the retained fragments from deteriorating, ensures the purity of the next batch of garlic granules, and improves the quality of garlic granule sampling. Moreover, by setting a driving wheel and using friction as a power source, the spraying of the cleaning liquid does not need to install an additional driving pump body, thus saving the installation of the driving source and reducing the cleaning cost.