168results about How to "Pass smoothly" patented technology

The invention provides an electrochemical method, an electrode and a system for synthesizing hydrogen peroxide without aeration, and relates to the technical field of electrochemical preparation of hydrogen peroxide. The multistage hole penetrating type cathode with a specific multistage hole channel structure is adopted, the oxygen-containing electrolyte penetrates through the multistage hole penetrating type cathode for electrochemical reaction under the non-aeration condition, dissolved oxygen in fluid is forced to make efficient contact with catalytic active sites through the multistage hole channel structure, the mass transfer process is greatly enhanced, and the catalytic activity of the catalyst is improved. And the diffusion limitation of the traditional flow-through electrode is overcome. And meanwhile, the structure required for synthesizing hydrogen peroxide is simplified by an aeration-free operation mode, and the energy consumption and the cost are reduced. Finally, through the synergistic effect of the technical characteristics, the high-yield and high-flux synchronous output of hydrogen peroxide can be realized under the condition that an expensive catalyst and external gas aeration are not needed.

The utility model relates to the technical field of universal crushers, in particular to an anti-residue universal material crusher. The device comprises a crushing operation shell, a discharging shell is arranged at the bottom of the crushing operation shell, a supporting table is arranged on the outer wall of the crushing operation shell, a cylindrical screen is movably arranged in the crushing operation shell, a crushing assembly is further arranged in the crushing operation shell, a screen rotating assembly is arranged below the cylindrical screen, and the screen rotating assembly is in transmission connection with the cylindrical screen. The screen rotating assembly is further in transmission connection with the smashing assembly, and a feeding assembly is arranged on the front face of the smashing operation shell. Through the matched design of the screen rotating assembly and the scrapers, the motor drives the cylindrical screen to rotate at a low speed through transmission of the chain wheel and the chain while driving the crushing operation, the scrapers tightly attached to the inner wall of the screen continuously scrape, powdery materials adsorbed or adhered to the surface of the screen due to static electricity can be removed in time, and the problem of screen blockage is effectively solved through the design; and the screen is always kept in a good transparent state.

This invention relates to the field of camouflage technology and discloses an inflatable camouflage device. The inflatable camouflage device includes a side inflatable module, a top inflatable module, and a camouflage decorative layer. The side inflatable module includes two side inflatable frames disposed on opposite sides of the device to be camouflaged. A first connector and a second connector are provided on the side inflatable frames. The first connector is used to connect to the device to be camouflaged. The side inflatable frames can be inflated and deployed or deflated and rolled up. The top inflatable module includes a top inflatable frame. A third connector and a fourth connector are provided on the top inflatable frame. The third connector is used to connect to the top of the device to be camouflaged. The top inflatable frame can be inflated and deployed or deflated and rolled up. The camouflage decorative layer can cover the upper surfaces of the side and top inflatable modules and can be detachably connected to the second and fourth connectors. This inflatable camouflage device is convenient and quick to set up and dismantle, can achieve multi-band camouflage, and provides good vehicle mobility and combat capabilities.

The utility model belongs to the technical field of cable production, and discloses a labeling device for pasting a cable label, which comprises a rack assembly for supporting and stripping the label to extend outwards, and a rolling assembly arranged in the middle of the rack assembly and used for elastically clamping and rolling the label to paste the cable, a discharging assembly used for gathering the cables to sequentially and horizontally fall to be labeled is arranged above the rolling assembly. The rolling assembly comprises a fixed pressing roller and a movable pressing roller; the discharging assembly comprises a discharging frame, a discharging hopper is arranged at the top of the discharging frame, the discharging frame and the discharging hopper are both of a two-half type, a cable passing channel is formed in the middle of the discharging frame, a material distributing mechanism used for separating single discharging of the cables is arranged on one side of the discharging frame, and a pulling mechanism used for pulling the cables to fall and be labeled is arranged below the material distributing mechanism. According to the labeling device for pasting the cable labels, through linkage of the rotary shifting wheel and the pulling wheel, automatic sorting, positioning and conveying of the cables are achieved, manual intervention is reduced, and the labeling speed is increased.

The utility model relates to an automatic slag discharging device for metallurgical slag, and aims to solve the problems that the slag cooling efficiency is low and the slag discharging process is not environment-friendly. The device comprises an L-shaped cooling pipe with a bent bottom, wherein the upper section of the L-shaped cooling pipe is communicated with a slag discharge port of the metallurgical furnace; the circulating cooling part is arranged on the cooling pipe and is used for cooling slag; the dispersing part comprises a rotating power mechanism, a rotating shaft and a dispersing plate, dispersing holes are densely distributed in the dispersing plate, the dispersing plate is located below the slag discharging opening, the rotating shaft is driven by the rotating power mechanism to rotate, slag is discharged from the dispersing holes under the action of gravity and centrifugal force and dispersed into particles, and rapid cooling and subsequent recycling treatment are facilitated; the blades are arranged on the rotating shaft and located above the slag discharging opening, and the blades rotate synchronously when the rotating shaft rotates; one end of the waste gas discharge pipe is communicated with the top of the cooling pipe, and the other end is connected with a waste gas treatment system for discharging and treating waste gas generated by slag cooling. According to the utility model, the slag cooling efficiency is improved, and the slag discharging process is more environment-friendly.

The utility model discloses an edible oil blending tank capable of uniformly stirring, which is characterized in that filter screen positioning rods are arranged in a one-up and two-down manner, so that a filter frame, the filter screen positioning rods and a filter screen main body among the interiors of the plurality of filter screen positioning rods form a W-shaped structure, and the stability of the filter screen main body is enhanced; the oil liquid can pass through the filter screen main body more stably and uniformly, filtering dead angles caused by non-uniform fluid distribution are reduced, the filtering efficiency is further improved, in addition, the W-shaped structure increases the contact area of the filter screen and the oil liquid, more oil liquid can be in full contact with the filter screen main body, impurities have more opportunities to be intercepted, and the oil liquid filtering effect is improved. According to the device, the discharging pipeline is arranged, so that the filtering precision and effect are improved, the device is provided with an assembly for filtering discharged oil products, impurities generated in the blending process or blocks which are not fully mixed are prevented from entering the discharging pipeline, the filtering efficiency can be improved by improving the structure, and the discharging uniformity and quality can be ensured.

This utility model discloses a powder coating device for stainless steel welding wire, including a processing box with an inlet and an outlet at both ends. Two movable plates are connected to the processing box via an adjustment mechanism. The adjustment mechanism includes a fixed plate, a drive assembly, a bidirectional threaded rod, and a limiting rod. The fixed plate is fixedly installed inside the processing box, the limiting rod is fixedly connected between the fixed plates, the bidirectional threaded rod is rotatably connected to the fixed plate, the drive assembly is connected to the bidirectional threaded rod, and the bidirectional threaded rod is threadedly connected to the movable plates. Two powder coating brushes are engaged at one end of the two movable plates via a locking mechanism, and several powder spraying heads are installed at the other end of the movable plates. Each powder spraying head is connected to a powder spraying assembly. This utility model allows adjustment of the distance between the powder coating brushes and the spraying heads, solving the problem of uneven powder coating in traditional devices when dealing with welding wires of different diameters, and improving the uniformity and quality of powder coating.

The utility model relates to a diameter-variable blood vessel sheath structure, which solves a series of problems of large operative wound, incapability of intraoperative radiography and the like in the process of treating lower limb artery embolism by opening a Fogarty catheter to take thrombus. The device comprises an outer sheath, an inner sheath and a sheath core which are sequentially nested from outside to inside, the outer sheath comprises an outer sheath main body and an outer sheath base arranged at the near end of the outer sheath main body; the inner sheath comprises an inner sheath body, an inner sheath base is arranged at the near end of the inner sheath body and connected with a hemostasis valve, the far end of the inner sheath body is connected with a self-expansion covered stent sample structure with two open ends, and the length of the inner sheath is larger than that of the outer sheath. The sheath core comprises a sheath core body, a sheath core base is arranged at the near end of the sheath core body, a conical end with the outer diameter gradually reduced is arranged at the far end of the sheath core body, a middle hole for a guide wire to penetrate through is formed in the sheath core body, and the length of the sheath core is larger than that of the inner sheath. The utility model has the advantages of high effectiveness, high safety, strong adaptability, good adaptability, simple structure and convenient operation.

This invention discloses a heat dissipation structure for a thermal power plant transformer, including a body with a storage compartment inside, and a transformer protective shell inside the storage compartment. The transformer protective shell has an air intake grille, and a mounting component is located inside the protective shell. The mounting component has a vertically penetrating mounting groove, and a suitable transformer component plate is nested inside the mounting groove. The lower side of the mounting groove is spaced apart from the transformer shell, and the lower side of the transformer component plate has multiple semi-through slots. This invention solves the problems of poor heat dissipation in traditional thermal power plant transformers, heat accumulation on the back of the transformer component plate leading to overheating and malfunction, and reduced component lifespan.

The utility model belongs to the road surface vibration technology field discloses a road surface vibration device for municipal road construction, include: frame body, be equipped with vibration mechanism on the frame body, and vibration mechanism includes vibration subassembly and auxiliary assembly, vibration subassembly includes liftable adjusting's lifting plate, has the vibration plate through the spring connection under the lifting plate, and is installed with vibration motor on the vibration plate, makes the vibration plate produce vibration through vibration motor to road surface vibration construction, compares with prior art, the utility model has the following beneficial effect: when the road surface vibration construction, by the height -adjusting plate adjustment helical tooth height, frame body removes and leads into the sundry mouth with the helical tooth shovel to remove the road surface convex stone piece, the sundry mouth's barrier pole intercepts the stone piece while allowing the road surface material to pass. Subsequently, the pre -compaction roller compacts primarily, vibration subassembly vibrates to be even, the rear pressure roller compacts secondly, significantly improves the road surface flatness.

This invention provides a flue gas nitrogen oxide reduction catalyst and its preparation and processing methods, relating to the field of industrial catalysis technology. The flue gas nitrogen oxide reduction catalyst has two functional zones, A and B, arranged sequentially along the flue gas flow direction. Functional zone A is a porous structure located at the inlet end for intercepting dust in the flue gas; functional zone B is located downstream of functional zone A and is the main reaction zone for the catalytic reduction of nitrogen oxides. The flue gas nitrogen oxide reduction catalyst provided by this invention protects the catalytic activity of functional zone B by intercepting dust in functional zone A. This partitioned design synergistically solves the problems of clogging and poisoning, significantly extending the catalyst's lifespan.

The application relates to the technical field of building materials, in particular to a pervious concrete and a preparation method thereof. The pervious concrete is prepared from raw materials including the following components in parts by weight: water 100-125 parts, cement 270-300 parts, coarse aggregate 1300-1500 parts, water reducing agent 8-15 parts, single-end hydroxyl silicone oil 15-40 parts, tannic acid 25-50 parts and amphiphilic cellulose 50-80 parts. The pervious concrete prepared by the application has good compressive strength and freeze-thaw resistance.

The utility model relates to flow velocity measurement technical field discloses a kind of granule conveying flow velocity measuring devices, including pipeline, the top of pipeline is equipped with observation platform, the top of observation platform is equipped with measuring mechanism, the bottom of observation platform is equipped with vibration mechanism, and the vibration mechanism includes motor, the drive end of motor is fixedly connected with rotating plate, the other end of rotating plate is rotatably connected with follower plate, the other end of follower plate is rotatably connected with linkage disc, the bottom of observation platform is fixedly connected with two limit posts, spring is equipped outside two limit posts, the outside of limit post is slidably connected with connecting disc. In the utility model, start motor, drive rotating plate to rotate, make follower plate rotate, and then let linkage disc slide on limit post, limit post moves up and down by spring to drive connecting disc to move up and down, connecting disc drives fixed column to move up and down by cylinder, and hammering vibration pipeline.

This application relates to the technical field of sewing machines, and in particular to a presser foot assembly and an overlock sewing machine. The presser foot assembly includes a presser foot frame and a presser foot plate. The presser foot frame has a presser foot head; the presser foot plate rests upward against the presser foot head and is capable of swinging up and down around the presser foot head. The presser foot plate has a starting state and a working state. When the presser foot plate is in the starting state, it is tilted upward, and the presser foot head is perpendicular to the presser foot plate. When the presser foot plate is in the working state, it swings upward or downward around the presser foot head. When the presser foot plate of this application encounters sequined fabric with a thicker stem, the sequined fabric can pass smoothly under the presser foot plate, preventing the thicker sequined fabric from accumulating at the presser foot plate. This allows the overlock sewing machine using this presser foot assembly to be suitable for overlock sequined fabrics with thicker stems.

The utility model relates to the field of nitrogen making machines, in particular to an efficient molecular sieve adsorption type nitrogen making machine. The device comprises a reaction cylinder, and an inner cylinder is fixedly connected to the interior of the reaction cylinder. The conical filter plate in the treatment mechanism is in a big-end-down shape, impurities in gas can be effectively filtered out, the unique shape of the conical filter plate can guide the impurities to slide to the flow guide groove along the inclined face, then the impurities are collected in a centralized mode through the collecting cavity, the impurities are prevented from entering the inner cylinder to affect the performance of the molecular sieve, and the purity of gas treatment is guaranteed; the nitrogen generation efficiency and quality are improved; moreover, the driving motor drives the conical filter plate to rotate, so that the gas treatment efficiency and quality of the nitrogen making machine can be remarkably improved, the contact frequency of the surface of the conical filter plate and impurities in the gas is greatly increased in the rotating process, and the impurity intercepting effect is remarkably enhanced; and meanwhile, the impurities are promoted to move towards the edge of the filter plate and slide to the diversion trench along the inclined surface due to the centrifugal force.

The invention relates to the technical field of dispensing equipment, and provides an automatic valve and glue changing device applied to dispensing equipment, comprising: a back plate main body, one side of which is provided with a back fixing plate, the other side of which is provided with a driving hinge, and which is internally provided with an air chamber and a movable push rod communicated by an air passage; a clamping hook clamped with the driving hinge is arranged on one side of the valve main body, an electromagnet is arranged on a mounting seat on the other side of the valve main body, and the bottom of the valve main body is connected with a runner; the cylinder fixing support is provided with a containing part, an adapter and a metal plate capable of being attracted by the electromagnet. The movable push rod can be driven by air pressure to push the drive hinge to stretch out and be clamped with the clamping hook, and therefore the valve body can be rapidly locked. The electromagnet can adsorb the metal plate to realize rapid combination of the rubber sleeve; the device has the characteristics of modular structure, reliable locking, quick replacement, good sealing performance and high integration level.

The utility model relates to the technical field of pest control box, disclose a corn is with field pest control box, including main box, the bottom fixedly connected with the chassis of main box, the top of chassis is provided with automatic mechanism, the top fixedly connected with the funnel frame of main box, the inner wall of main box is provided with the falling mechanism, automatic mechanism includes the feed tank, the bottom fixedly connected in the top of chassis of feed tank, the inner wall fixedly connected with the timing telescopic link of feed tank, the top fixedly connected with the bottom plate of timing telescopic link, the top fixedly connected with polyethylene pad of bottom plate, the inner wall of feed tank is set up with the storage groove. In the utility model, through material flow transfer timing telescopic link setting time telescopic, drive bottom plate to lift, polyethylene pad reduces bottom plate corrosion, through the conveying pipe with the storage tank in material outward transfer, support plate and sliding page cooperation simultaneously, guide material flow direction, reduced artificial cost.

This invention discloses a multifunctional biomimetic robot for field exploration, comprising a body structure, a variable-radius slewing wheel-leg mechanism, a variable-stiffness connection mechanism, a flexible tail mechanism, and a front-end actuator. The body structure includes multiple base plates; the variable-stiffness connection mechanism includes multiple variable-stiffness connection components, with adjacent base plates connected by these components; the variable-radius slewing wheel-leg mechanism includes multiple variable-radius slewing wheel-leg components, each capable of both wheel-based and leg-based movement; the flexible tail mechanism possesses degrees of freedom for circumferential rotation and vertical bending; and the front-end actuator has obstacle removal and / or data acquisition functions. This design achieves high movement speed on flat terrain while simultaneously meeting the requirement for high obstacle-crossing capability on complex terrain. Furthermore, the body stiffness can be automatically adjusted, and the tail structure exhibits high controllability and flexibility.

The application discloses a turnover chain machine, which belongs to the field of logistics and storage. The machine can significantly reduce the installation space of the driving assembly and the maintenance cost, and improve the stability of the equipment and the smoothness of logistics. The turnover chain machine comprises a fixed rack assembly, a turnover rack assembly driven by a turnover driving assembly is arranged on one side of the fixed rack assembly, the turnover rack assembly can be reciprocally turned around the shaft at the joint of the fixed rack assembly, two groups of conveying chain assemblies composed of end-to-end joints are arranged on the fixed rack assembly and the turnover rack assembly and driven by a conveying driving assembly, the fixed rack assembly is vertically supported by a fixed supporting leg assembly, and the turnover rack assembly is vertically supported by a turnover guiding supporting leg assembly during the conveying of goods, and the turnover driving assembly is arranged on the inner side of the end of the joint of the turnover rack assembly and the fixed rack assembly.

The adjustable electrostatic dust collection device comprises a dust collection box, a plurality of idler wheels are installed at the lower end of the dust collection box, a sliding groove is formed in the inner top of the dust collection box, and a sliding plate is connected to the inner wall of the sliding groove in a sliding mode. One side wall of the sliding plate is elastically connected with the inner wall of the sliding groove through a plurality of springs, an electrostatic dust collector is installed at the lower end of the sliding plate, a rotating shaft is rotationally connected to the inner wall of one side of the dust removal box, a cam is fixedly connected to the outer wall of the rotating shaft and matched with the electrostatic dust collector, and a dust outlet hopper is fixedly connected to the lower end of the dust removal box. And one side wall of the dust removal box is fixedly connected with two fixed plates. And by arranging the rotating shaft, the gear, the rack and other structures, the swing plate can drive the dust collection plate to swing, then the dust collection head can collect dust in the chemical workshop from different angles, the dust collection range is enlarged, and the dust collection efficiency is improved.

The utility model relates to battery separator technology field discloses a kind of separator and electric core, separator has mutually perpendicular first direction and second direction, comprising: base film layer, first coating, second coating and protective layer, base film layer has the first side and second side of opposite arrangement along second direction, base film layer has the second part and third part along first direction arrangement;First coating is located at first side, the surface of first coating forms second vacant area along second direction corresponding third part;Second coating is located at second side, the surface of second coating forms fourth vacant area along second direction corresponding third part;Protective layer is set on the surface of first coating and / or second coating, and protective layer and the second part of base film layer are oppositely arranged along second direction;Protective layer at least corresponds to the bending part of anode sheet or cathode sheet winding start segment.

The application relates to the technical field of ion exchange equipment and specifically discloses a device and method for removing air bubbles in an ion exchange column, which comprises a shell, multiple groups of ion exchange components and multiple gas-liquid separation pieces, the multiple groups of ion exchange components are arranged in the shell and are spaced apart along the axial direction of the shell, the gas-liquid separation pieces correspond to the ion exchange components one by one, each gas-liquid separation piece is arranged on the side of the ion exchange component close to a discharge port, the gas-liquid separation piece is umbrella-shaped, a separation cavity is formed between the gas-liquid separation piece and the ion exchange component, the top of the gas-liquid separation piece is connected with an exhaust pipe, the exhaust pipe extends to the outside of the shell, the gas-liquid separation piece comprises a body and a flow blocking part, the body is connected with the flow blocking part, a flow hole is formed in the body and is used for passing fluid, the normal projection of the flow blocking part on the body covers the flow hole, so that the gas phase can rise along the flow blocking part to the exhaust pipe and be discharged. The application can efficiently remove the air bubbles generated in the ion exchange process.

The utility model relates to a hardware product surface polishing device, include: mounting bracket, install the object table in mounting bracket, and the object table is equipped with the through slot, and the pivot rotation is connected in mounting bracket, and the pivot is wrapped with the polishing wheel, and mounting bracket installs power assembly, is used for driving pivot rotation, and mounting bracket installs push assembly, is used for promoting product movement, through starting servo motor, makes the polishing wheel high -speed rotation, when the staff puts the product on the object table, pushes the handle and push rod, promotes the push plate and product together to the polishing wheel direction movement, after the product passes two polishing wheels, can realize the two -sided synchronous polishing of product, and when promoting product close to the polishing wheel, the clamping plate also will be close to the polishing wheel, provides the take -up operation for taking up the product after polishing, to improve product polishing efficiency.

The utility model belongs to the technical field of gas pressure regulating equipment, and particularly discloses gas pressure regulating equipment for a laboratory, which comprises a main pipeline, branch pipelines are communicated with two ends of the main pipeline, and a pressure stabilizing component is arranged at one end of the main pipeline; the pressure stabilizing assembly comprises a pressure stabilizing cavity, the pressure stabilizing cavity is communicated with one end of the main pipeline, an annular base is arranged in the pressure stabilizing cavity, a spring is arranged at one end of the annular base, and a diaphragm is arranged at the end, away from the annular base, of the spring. When gas enters the pressure stabilizing cavity through the gas inlet of the main pipeline, gas pressure acts on the diaphragm, the diaphragm compresses the spring, the elastic force of the spring plays a buffering role, further rising of the gas pressure is limited, the through holes and the micropores formed in the diaphragm allow the gas to pass through, the through holes can ensure that the gas passes through the pressure stabilizing cavity at a relatively stable flow rate, and the gas pressure is reduced. And the stability of gas supply in the experiment process can be maintained.

The invention provides an advanced detection integral type drilling machine suitable for a roadway driving working face and a using method. One end of a dislocation unfolding mechanism is rotatably installed at the rear end of a right vehicle body platform, and the other end of the dislocation unfolding mechanism is installed on a left vehicle body platform in a sleeving mode; the left vehicle body platform can slide backwards in the longitudinal direction relative to the right vehicle body platform under driving of the dislocation unfolding mechanism, and sliding type longitudinal dislocation is achieved. The left vehicle body platform can be driven by the staggered unfolding mechanism to rotate around the rear end of the right vehicle body platform to be longitudinally unfolded. When a small-angle advanced manhole needs to be constructed in the left front of the driving face, the left vehicle body can slide backwards by a certain distance to protrude out of the position of the drilling device in the right vehicle body; when the roadway heading machine needs to make way, the forepoling drilling machine can walk to the position of the right roadway side, and after the upper and lower stable stand columns in the right vehicle body abut against a roadway top plate and a bottom plate, the left vehicle body is longitudinally unfolded and is close to the right roadway side, so that the width of the vehicle body of the forepoling drilling machine is reduced, and the roadway heading machine can smoothly pass through.

The application relates to a cloth feeding device for a flame-retardant base cloth production tentering setting machine, and relates to the technical field of cloth processing, which comprises a bottom plate, a mounting seat is arranged above the bottom plate, a mounting frame is connected to the top surface of the mounting seat, a first motor is connected to one side of the mounting frame, a bidirectional screw rod is connected to the output end of the first motor, a moving block is threadedly connected to the outer wall of the bidirectional screw rod, a connecting rod is connected to the bottom surface of the moving block, a fixing seat is connected to the bottom surface of the connecting rod, a limiting mounting plate is arranged in the fixing seat, the device drives the bidirectional screw rod to rotate through the first motor, drives the two moving blocks to move towards or away from each other along the screw rod axis direction, further enables the fixing seat and the limiting mounting plate in the fixing seat to realize transverse movement, different-width cloths can be adapted, cloth deviation, wrinkles, sliding and other conditions caused by the fact that the base cloth width does not conform to the preset size of the limiting structure are avoided, and the cloth feeding efficiency is greatly improved.

The application discloses an underwater navigation seabed pipeline detection robot capable of autonomously avoiding obstacles, which comprises a mounting frame, horizontal propellers, vertical propellers, obstacle-removing mechanisms, an equipment cabin assembly and a limiting mechanism, symmetrically arranged with illuminating lamps on the upper side of the mounting frame, and symmetrically arranged with vertical propellers below the left and right sides of the mounting frame, and horizontally arranged with propellers in the middle of the left and right sides of the mounting frame, and arranged with the limiting mechanism in the middle of the mounting frame, and arranged with the equipment cabin assembly on the limiting mechanism, and symmetrically arranged with the obstacle-removing mechanisms on the left and right sides of the mounting frame; when the robot encounters obstacles, the extrusion plate will be pressed by the obstacles, and when the extrusion plate moves, the obstacle-removing plate on the rotating frame will swing, which enables the robot to push away or bypass the encountered obstacles, and the obstacle-removing mechanisms can help the robot to identify and avoid obstacles, and ensure the smooth passing of the robot.

The utility model discloses an adjustable vibration classifying screen for rice processing, which relates to the technical field of grain processing and comprises a support, a screening box is rotatably connected onto the support, a feed port and a discharge port are respectively arranged on two sides of the screening box, two screening plates are fixedly mounted in the screening box, and the feed port is communicated with the discharge port. A collecting box is placed at the bottom end of the support, and an adjusting assembly capable of adjusting the diameter of screen holes is assembled on the screening plate. By assembling the adjusting assembly capable of adjusting the diameter of the screen holes on the screening plate, the limitation caused by fixation of the screen holes of an existing grading screen is effectively solved, firstly, the size of the screen holes can be flexibly adjusted according to the size of rice so that the size of the screen holes can be matched with the height of eight-treasure rice in the Guangdong county, and the eight-treasure rice can smoothly pass through by increasing the diameter of the screen holes; by reducing the diameter of the sieve pores, the eight-treasure rice and impurities can be accurately separated, and the screening precision is remarkably improved.

The utility model relates to the field of reverse osmosis water treatment equipment, and discloses anti-scale reverse osmosis water treatment equipment which comprises a base and a support, the support is fixedly connected to the top end of the base, a raw water tank is arranged on the left side of the support, a water storage tank is arranged on the right side of the support, and a multi-stage reverse osmosis filter assembly is arranged between the raw water tank and the water storage tank. The multi-stage reverse osmosis filtering assembly comprises a first osmosis membrane tank, a second osmosis membrane tank, a third osmosis membrane tank and a fourth osmosis membrane tank. According to the anti-scaling reverse osmosis water treatment equipment, the water outlet is formed, a descaling opening is independently designed, a special connecting pipe is additionally arranged to discharge waste into a waste water tank, after the equipment stops running, waste water can be rapidly discharged, and the scaling risk on the surface of a reverse osmosis membrane and in a pipeline is reduced; pressure can be independently adjusted among different filtering levels, water flow is prevented from being retained in the multi-level filtering process, and the problems of scale deposition and wastewater retention are solved.

The utility model relates to a fan with a magnetic screen, which comprises a main frame, a mounting groove is arranged in the main frame, the main frame comprises a fan upper cover and a fan lower cover, a clamping groove is arranged on the inner side of the fan lower cover, a clamping block is arranged at the bottom of the fan upper cover, a hollow plate is connected to the inner side of the fan lower cover, and the top of the hollow plate extends upwards to be provided with a first mounting cylinder. And a main control board is mounted on the first mounting cylinder. The magnetic screen is tightly attached to the magnetic mounting plate through magnetism and is positioned through the buckles and the clamping rods, so that the magnetic screen can be quickly positioned and mounted and only needs to be pulled out during disassembly, operation is simple, a user can easily replace the screen according to own preferences or requirements, and flexibility is high; due to the design of the hollow shaft, the fan blades can be detached very conveniently, the magnetic attraction mounting plate on the hollow shaft can not abut against the positions above the fan blades any more by rotating the nut at the bottom of the hollow shaft, then the fan blades are taken out, and a circuit cannot be affected.