29results about How to "Wet evenly" patented technology

The invention discloses a programmable high-low temperature alternating humidity and heat test box, and relates to the technical field of test boxes, the programmable high-low temperature alternating humidity and heat test box comprises a box body, a box door is mounted on the box body, the programmable high-low temperature alternating humidity and heat test box further comprises a temperature and humidity control part used for controlling temperature and humidity in the box body, a water accumulation pool is arranged at the inner bottom of the box body, a shaking table is slidably connected in the box body, and a main pressure bag is mounted on the bottom surface of the shaking table; a vertical shaft is rotationally connected to the shaking table, a plurality of test beds are arranged below the shaking table, and a distance adjusting module is mounted on the shaking table and is in transmission connection with the lowest test bed. When the test box works, on one hand, a to-be-tested product can be effectively clamped during a test, so that the stability and safety of the to-be-tested product during the test are ensured, on the other hand, the to-be-tested product can be uniformly heated, wetted and cooled during the test, and meanwhile, when the test box works, the test efficiency is improved. And the residual rate of moisture on the to-be-tested product can be effectively reduced through vibration, and recovery of redundant water vapor in the test box is realized.

The invention relates to the technical field of concrete curing, and particularly discloses a concrete tower column curing system which comprises a data acquisition module, a data monitoring module, an analysis control module, a data storage module and an automatic water spraying system which are connected in sequence. The data monitoring module is used for acquiring environment data in real time and sending the environment data to the analysis control module, and the environment data comprises wind speed, wind direction and humidity parameters; the wind field construction module is used for constructing canyon wind field information; the analysis control module comprises an analysis judgment unit and a mode switching unit; the analysis and judgment unit is used for judging whether the wind speed is larger than the set wind speed or not, if yes, the mode switching unit controls the automatic water spraying system to work in a spraying mode, and if not, the mode switching unit controls the automatic water spraying system to work in a spraying mode. The invention aims to solve the problem of poor water spraying maintenance effect of the concrete tower column due to the fact that the wind environment of the canyon where the existing tall tower column is located is complex and spray is blown away.

The invention provides a wet curtain assembly and an air conditioning device. The wet curtain assembly comprises a wet curtain; the water distribution disc is mounted at the top of the wet curtain and comprises a disc body, a water inlet and a water outlet; the first channel is arranged on the disc body; the second channel is arranged on the disc body and is arranged in the circumferential direction of the disc body; the first water drainage holes are formed in the second channel at intervals in the circumferential direction of the disc body; and the communicating channel is arranged between the first channel and the second channel and used for communicating the first channel with the second channel when the water level in the first channel reaches a first preset water level. According to the wet curtain assembly, in the process that water entering the second channel flows into the second channel, the water flow direction is converted by a certain angle, so that the impact force generated when the water flow just flows out of the water feeding hole is greatly eliminated, the first water discharging hole discharges water purely depending on gravity, and the influence of the impact force of the water flow on water discharging of the first water discharging hole is reduced; therefore, the water drainage of the plurality of first water drainage holes is more uniform.

The invention provides toughened anti-cracking and anti-corrosion solid waste concrete and a preparation method thereof. Mixing the cement, the fly ash, the slag and the natural aggregate; sequentially adding water, a weakly alkaline regulator and an additive solution containing a polycarboxylic acid water reducer to obtain concrete slurry; and curing to obtain the product. According to the invention, fly ash, slag solid waste and natural aggregate are used as aggregate, a water reducer is added to reduce the water consumption of concrete and improve the fluidity of concrete, and specially-made weakly-alkaline conditioning agent particles are introduced, so that the self-water-absorption-water-release behavior and bridging effect of the particles are utilized to improve the concrete fluidity. The early-stage and later-stage continuous hydration ability of a rubber material in the concrete is enhanced, the self-shrinkage and drying shrinkage resisting effects are achieved, the compactness and corrosion resistance of the concrete are improved, and then the anti-cracking ability of the all-solid waste concrete is improved. The surface of an obtained test piece is free of cracks, the 28d compressive strength reaches 46.6 MPa, the 28d breaking strength reaches 8.5 MPa, the self-shrinkage rate is 0.035%, and the drying shrinkage rate is 0.01%.

The invention relates to the field of soldering flux, and particularly discloses environment-friendly high-stability soldering flux. The corrosion-resistant coating is prepared from the following raw materials in parts by mass: 8 to 10 parts of triethanolamine, 3 to 5 parts of vaseline, 5 to 8 parts of cyclohexane citric acid, 0.1 to 1 part of corrosion inhibitor, 5 to 8 parts of solvent, 1 to 3 parts of coumarone resin, 5 to 8 parts of hydroxy acrylic resin, 1 to 2 parts of vinyltriethoxysilane, 2 to 6 parts of tetraethoxysilane, 1 to 2 parts of cholesterol, 0.1 to 0.5 part of phospholipid, 0.1 to 0.3 part of dicumyl peroxide and 1 to 3 parts of polyamide monomer. 3-5 parts of brucite fiber, 0.5-1.0 part of sodium stearate, 1-2 parts of hydrogenated castor oil and 1-2 parts of zinc dichloride. The invention further discloses a preparation method of the environment-friendly high-stability scaling powder, organic matter is adopted for compounding the activated silicon balls and various effective components, the stability of a system is effectively enhanced, and the using effect of the scaling powder is improved.

This utility model relates to an atomizing device and a window cleaning robot, comprising a mounting housing and two atomizing components disposed on the mounting housing. The two atomizing components are spaced apart, with a preset distance between the central axes of their nozzles, and / or the nozzles of the two atomizing components are angled away from each other, with their central axes forming a preset angle, ensuring that the corresponding spray areas of the two atomizing components on the surface to be cleaned do not intersect. This utility model abandons the traditional approach of increasing liquid concentration in the central area through cross-spraying, instead configuring the atomizing components with angled away from each other and / or with sufficient distance. This design allows each spray to cover an independent area, thereby fundamentally solving the problems of uneven distribution and excessive wetness of the cleaning surface caused by cross-spraying in existing technologies. This significantly improves the cleaning efficiency and effect of the window cleaning robot and helps maintain the adsorption stability of the robot on the glass surface.

The utility model discloses concrete preparation and maintenance equipment which comprises a box body, a plurality of placing plates are transversely and fixedly arranged in the box body from top to bottom, a plurality of ultrasonic atomization nozzles are evenly arranged at the positions, corresponding to the upper sides of the placing plates, in the box body, a water tank is fixedly arranged on the lower side in the box body, and a water leakage net is arranged in the middles of the placing plates. Water leakage holes are formed in the left sides of the lower side faces of the water collection grooves, the water leakage holes of the adjacent water collection grooves are communicated through communicating pipes, a filtering structure is arranged in the water tank, a water supply structure is arranged on the right side in the water tank, and the water supply structure is communicated with the multiple ultrasonic atomization nozzles. The water supply structure is matched with the multiple ultrasonic atomization nozzles to spray concrete test blocks on the water leakage net, it is guaranteed that the concrete test blocks are evenly and comprehensively wetted, meanwhile, impurities in the concrete test blocks are isolated through the filtering structure, the overall structure is simple, normal operation of equipment is guaranteed in the curing process, and practicability is high.

The application discloses a control method for the liquid rate of a rubbing cloth in a textile rubbing fastness test, and the steps for controlling the liquid rate of the rubbing cloth to be 95%-100% are as follows: placing a weighing bottle on an electronic balance and zeroing the electronic balance; placing the rubbing cloth into the weighing bottle and weighing; spraying tertiary water on the rubbing cloth uniformly by using a syringe with a small specification needle until the reading of the electronic balance is twice the weight of the rubbing cloth plus the residual tertiary water mass of the weighing bottle; standing for more than 30s, and taking out and using; wiping the residual tertiary water in the weighing bottle so as to use again. The method is simple in operation, low in cost, high in efficiency, capable of precisely controlling the liquid rate, ensuring uniform wetting of the rubbing cloth, and strong in replicability and popularization.

The utility model discloses a pouring device for a counterweight casting, which relates to the technical field of casting pouring, and adopts the technical scheme that the pouring device comprises a device base, a pouring outer column and a vibration fixing block, a fixing ring is fixedly mounted outside the device base, a sliding bulge is fixedly mounted outside the pouring outer column, and a mold component is slidably connected outside the sliding bulge; a vibration fixing block is fixedly installed outside the pouring outer column, the vibration fixing block is connected with a fluid vibration assembly, and the fluid vibration assembly comprises a sliding rod, a motor, a rotating disc and a vibration spring. Due to the liquidity of molten metal and shrinkage in the solidification process, accurate balance is difficult to achieve due to the defects of air holes, shrinkage cavities and the like which are easily generated, and the pouring efficiency is low in the casting process.

The utility model discloses a printing and dyeing pre-wetting device which comprises a pre-wetting shell, a cloth inlet and a cloth outlet are formed in the left end and the right end of the pre-wetting shell respectively, cloth roller sets are arranged at the cloth inlet and the cloth outlet respectively, a pre-wetting device body is arranged in the pre-wetting shell, and the pre-wetting device body comprises a pre-wetting roller set, a water filtering assembly, a first water pump and a water return connecting pipe. The pre-wetting shell is designed in a segmented mode and comprises the material cloth cavity and the pre-wetting cavity, the inner diameter of a channel is reduced, water backflow is reduced, the washing effect is enhanced, and the coloring quality is improved. And a reverse osmosis water filter is used, so that the cleanliness of pre-wetting water is ensured. The first water pump is added to accelerate the filtering process and improve the efficiency. Filtered water flows in from the top through the design of the water return connecting pipe, and the pre-wetting effect is improved. The three-way electric control valve and the water replenishing pipe facilitate water replenishing, and continuity and stability of the pre-wetting process are guaranteed.

The utility model discloses a paperboard folded edge wetting mechanism which comprises a rack, a through cavity is formed in the center of the rack, a sliding mechanism is arranged in the through cavity, a plurality of wetting mechanisms are arranged at the front end of the sliding mechanism and horizontally slide in the through cavity through the sliding mechanism, detachable wetting contact pieces are arranged at the front ends of the wetting mechanisms, and the wetting contact pieces are obliquely suspended. A conveying partition plate is arranged on the inner bottom face of the through cavity, the front end and the rear end of the conveying partition plate symmetrically deflect downwards, a conveying belt is arranged on the conveying partition plate, and paperboards are conveyed through the conveying belt and make contact with the wetting contact pieces. By means of the slidable wetting contact piece, adjustment is carried out in combination with the actual situation of a paperboard, folding side lines are wetted in a more matched mode in combination with the protrusions on the bottom face, follow-up folding is facilitated, difficulty is lowered, and the condition of a carton is improved; the paperboards are smoothly conveyed in through the inclined wetting contact pieces and the edge-folded conveying partition plates, so that the surfaces of the paperboards are prevented from being slippery and rubbed; and the wetting contact piece is uniformly, continuously and reasonably wetted through the opening of the rod body of the mounting insertion rod.

The utility model provides an upper-water-adding evaporative humidifier which is convenient for a user to carry out water supplementing operation, comprises a machine body, air is discharged from the top of the machine body and air is fed from the side part of the machine body, and is characterized in that an air blowing mechanism, a filter element module and a water tank are sequentially arranged in the machine body from top to bottom, and a water filling opening is formed in the top of the machine body; the water injection port is communicated with the water tank through a water injection channel in the machine body, the filter element module comprises a support, cylindrical filter element cotton installed on the support and an annular water channel arranged above the support, a plurality of draining holes right opposite to the top end of the cylindrical filter element cotton are formed in the bottom of the annular water channel, and a backflow hole is formed in a top cover of the water tank. A water pump and a water feeding pipe connected with the water pump and the annular water channel are arranged in the water tank.

The utility model relates to the technical field of solid wood furniture processing, in particular to anti-loosening wood board pressing equipment which comprises a processing table, one side of the surface of the processing table is rotatably connected with a movable panel, the other side of the surface of the processing table is provided with a push plate, and one side of the push plate is connected to one end of a first air cylinder through a bolt; the other end of the first air cylinder is connected to the machining table through a bolt, and a limiting assembly is arranged on the surface of the machining table. According to the improved wood board pressing equipment, the surface structure of the machining table plays a pressing role on the edges of the boards, the situation that the splicing positions are loosened due to the fact that the edges are lack of limiting structures is avoided, the boards can be made to be regular, uniform and continuous pressure can be applied to the boards through the transmission and continuous rolling structures of the pressing rollers, and the board pressing efficiency is improved. The shape of the surface provides more contact points for the contact with the plate, so that the pressure is dispersed to a certain extent, and the adaptability is higher when the plate with grains on the surface is treated.

The utility model belongs to the technical field of poria cocos cultivation, in particular to an efficient poria cocos cultivation device which comprises a cultivation pipe, an adjusting mechanism is arranged on the cultivation pipe and comprises a bearing mechanism, a water outlet pipe, a fixing pipe, a follow-up mechanism, a follow-up block, a lateral block, a conical spring and an attaching block, the bearing mechanism is installed on the cultivation pipe in a matched mode, and the fixing pipe is connected with the bearing mechanism. The water outlet pipe communicates with the cultivation pipe, the fixing pipe is installed on the water outlet pipe, the adjusting mechanism can accurately control the speed and quantity of water flow, through cooperative work of the water outlet pipe, the fixing pipe and the attaching block, the adjusting mechanism enables the water flow to be adjusted according to the cultivation requirement, and it is guaranteed that water supply is matched with the plant requirement; the regulation capability ensures that the growth environment of the poria cocos is maintained under the optimal humidity condition, and the use of irrigation resources is optimized, so that the cultivation efficiency and yield are improved.

The utility model provides a vertical air humidification purifier, which solves the problems of indoor air purification and humidification, and is characterized by comprising a water tank, a filter element module and an air blowing mechanism, the water tank is positioned at the bottom of a machine body, and an atomizer is arranged in the water tank; the air blowing mechanism is located at the top of the machine body, the filter element module comprises a cylindrical filter element, the cylindrical filter element is located above the water tank, a center channel of the cylindrical filter element is right opposite to an air inlet of the air blowing mechanism, a draining mechanism is further arranged above the cylindrical filter element, the draining mechanism is provided with an annular flow channel and a plurality of draining holes right opposite to the top of the cylindrical filter element, and the annular flow channel is communicated with the draining holes. A water pump is arranged in the water tank, the water pump is communicated with a water injection port of the annular flow channel through a water pipe, a confluence base plate is arranged at the bottom of the cylindrical filter element, an annular confluence groove is formed in the confluence base plate, a through confluence port is not formed in the groove bottom of the confluence groove, and the confluence port is communicated with the water tank.

This utility model belongs to the technical field of seedling equipment, specifically disclosing a controllable seedling box for raspberry seedling cultivation. The seedling box is arranged from top to bottom as a seedling chamber and a water tank, which are separated by a partition. The partition has evenly distributed ventilation holes and a tray is fixedly connected to the top. The bottom of the tray is set with a continuous "V" shaped groove, and an electric heating element is fixedly connected to the lower end of the groove ridge. A layer of guide cloth is laid on the upper surface of the "V" shaped groove. The guide cloth extends into the water tank through the side wall of the tray and the ventilation holes on both sides. A permeable seedling tray is detachably connected to the top of the tray. A lamp tube is fixedly connected to the top of the seedling box, and air vents are symmetrically opened on both sides. This utility model can continuously supply water and avoid water accumulation by setting the guide cloth, and can control light and temperature by setting the lamp tube and electric heating element.

The utility model relates to the technical field of wall repairing, and provides a painting bottle which comprises a bottle body, a connector and a roller. The bottle body is provided with a paint storage space for storing paint, and one end of the bottle body is provided with an opening communicated with the paint storage space; the connector comprises a mounting part and a connecting part; a mounting groove is formed in one side of the mounting part, and a groove frame is arranged on the bottom wall of the mounting groove; the connecting part is arranged on the other side of the mounting part, the end, away from the mounting part, of the connecting part is arranged at the end, located at the opening, of the bottle body, and a liquid passing groove is formed in the connecting part so that the groove frame can be communicated with the opening; and the roller is rotationally connected to the mounting part and is partially positioned in the mounting groove. On the basis, repeated paint dipping is not needed, so that the wall surface can be conveniently painted and repaired.

The application discloses a floor brush mechanism, which comprises a floor brush body, a cleaning assembly, a flow divider and a cleaning device. The cleaning assembly is movably installed on the floor brush body. The flow divider is arranged on the floor brush body and has a water distribution surface arranged towards the cleaning assembly. The water distribution surface is an arc surface, which extends along the rotating direction of the cleaning assembly. At least one flow distribution port is arranged on the water distribution surface. When the cleaning assembly reversely rotates, dirt between the cleaning assembly and the water distribution surface is removed along the water distribution surface under the movement of the cleaning assembly. The application further discloses a cleaning device comprising the floor brush mechanism. The application further provides a cleaning system comprising the cleaning device and a base station. The floor brush mechanism, the cleaning device and the cleaning system can solve the problem that the self-cleaning of the cleaning device in the prior art cannot remove dirt in a chamber, thereby causing poor self-cleaning effect of a roller brush.

The utility model is applicable to the technical field of constructional engineering, and provides a concrete surface freeze-thaw-resistant maintenance structure which comprises four supporting legs, the four supporting legs are placed on the ground far away from concrete, a rotating roller is detachably installed between every two supporting legs, and the rotating rollers are arranged on the supporting legs. One rotating roller is sleeved with a curing film, and the other rotating roller is sleeved with heat preservation cotton; a mounting frame is detachably mounted among the four supporting legs, a plurality of branch pipes are detachably mounted on the bottom wall of the mounting frame, the branch pipes can be connected with a water pump through a main pipe, and water injection nozzles are uniformly formed in the bottom walls of the branch pipes. Through the arrangement of the rotating rollers, the movable blocks, the fixing plates and the springs, the rotating rollers can be mounted and dismounted, a maintenance film and protection cotton can be fixed conveniently, the maintenance film and the protection cotton can be pasted by a single person through the arrangement of the rotating rollers, time and labor are saved, and the use efficiency of the maintenance structure is improved.

The utility model discloses corn flour moisture control equipment, which relates to the grain processing technology and comprises a spiral conveying mechanism, an atomizing and spraying assembly and a corn screening mechanism, the spiral conveying mechanism comprises a conveying shell, a conveying shaft, a spiral blade and a conveying motor, the conveying shaft is mounted in the conveying shell, and the atomizing and spraying assembly is mounted in the conveying shell. The spiral conveying mechanism and the atomizing and spraying assembly are arranged, the atomizing and spraying assembly is installed above the spiral conveying mechanism, and the atomizing and spraying assembly can spray to the surfaces of corns to wet the corns in the process that the corns are conveyed by the spiral conveying mechanism; the corn screening mechanism is arranged, the corn screening mechanism can filter and screen impurities in the corn before the corn is wetted, and the situation that the processing quality of corn flour is affected due to the fact that the impurities in the corn are wetted together with the corn and adhere to the surface of the corn is prevented.

The utility model provides a kind of vehicle-mounted mobile road core sampling device, it is related to core sampling device technical field, including slide rail assembly, sliding seat plate, lifting assembly and rotary core component;Sliding seat plate bottom is slidably arranged on vehicle body by slide rail assembly, and sliding seat plate is equipped with lifting platform, two lifting barrels and two fixed guide rods, and one lifting support is equipped in each lifting barrel.The beneficial effects of the utility model are that sliding seat plate can slide out from vehicle body after moving to specified position, and lifting support can support and fix sliding seat plate;Rotary core component can drive core sampling barrel to rotate, and lifting assembly drives sliding seat plate to lift, to exert downward pressure on core sampling barrel, so that core sampling barrel drills sample on road surface, the core sampling device has the advantages of convenient movement and quick deployment, and the device is simple to operate, can save traditional equipment handling and assembly time, can be operated by a single person, greatly reduces the labor cost of road core sampling.

The present invention discloses a method for preparing a multi-stage slow-release prefabricated block for TiB2 micro-nano particle reinforced magnesium-lithium based composite materials; the preparation method comprises mixed ball milling, hot pressing and twice cold pressing of the reinforcement. The present invention uses a multi-stage slow-release prefabricated block prepared by TiB2 particles of three different sizes, namely micron, submicron and nanometer, to achieve a uniform and controllable reinforcement dispersion rate in a magnesium-lithium melt, and effectively solves the problems of low reinforcement particle yield and serious particle agglomeration in the traditional composite material preparation process. The process flow of the invention is simple and controllable, and shows broad application prospects in the field of magnesium-lithium based composite materials.

The application discloses a skin-nourishing powder cream composition and a preparation method thereof, and the skin-nourishing powder cream composition is a water-in-oil emulsion system, and contains, in parts by weight, 22.5-62.5 parts of an oil phase component, 4-14 parts of a powder component, 15-50 parts of an aqueous phase component and 0.1-2 parts of a skin conditioner; and the application uses high-content natural plant oils such as jojoba seed oil and olive fruit oil and high-quality emollient esters such as caprylic acid / capric acid triglyceride as core oil phases, thereby replacing a large amount of mineral oil or volatile silicone oil used in traditional powder creams. The plant oils are rich in unsaturated fatty acids and antioxidant components, and can provide long-lasting moisturizing, repair the sebum membrane and relieve dryness for the skin.

The invention provides a self-cleaning coating with high mechanical property and high adhesive force and a preparation method of the self-cleaning coating. The preparation method comprises the following steps: firstly, synthesizing polydimethylsiloxane-based polyurea (PDMS-PUa) with high light transmission through a solution mixing method; then, preparing CQDs by using an alkali-assisted ultrasonic method, and effectively loading and uniformly dispersing the CQDs in the PDMS-PUa under a continuous ultrasonic condition, so as to finally prepare the PDMS-PUa / CQDs material. According to the present invention, the strong hydrogen-bond interaction is formed between the polar group of the CQDs and the amino group of PDMS-PUa, such that the stability of the whole network structure is enhanced through the interaction, such that the mechanical property is improved, the adhesion property of the material is significantly improved, the adhesion of PDMS-PUa / CQDs can be improved to 3.1 MPa, and the tensile strength of 8.6 MPa and the elongation of 718.65% are provided. The introduction of CQDs also improves the surface tension characteristic of PDMS, promotes the uniform wetting of the coating material, effectively reduces the generation of bubbles and the occurrence of small hole phenomena, and also has better self-cleaning performance.

The invention discloses a slitting circular knife cleaning device and a cleaning method thereof, and belongs to the technical field of knife cleaning, the slitting circular knife cleaning device comprises a knife body and a knife rest, the knife body is mounted in the knife rest, a movable frame is arranged above the knife rest, a pneumatic push rod is mounted at the upper end of the movable frame, a glue removing assembly is arranged at the upper end of the knife body, and the glue removing assembly is mounted on the movable frame; a glue scraping assembly is arranged on one side of the knife body and fixedly arranged on the knife rest. According to the slitting circular knife cleaning device and the cleaning method thereof, the glue removing agent is injected through the liquid inlet, automatic soaking of the cleaning sponge is matched, the knife body can make friction contact with the sponge in the rotating process, and therefore automatic cleaning is achieved. The cleaning efficiency is improved, the labor time is saved, residues on the surface of the cutter body can be effectively removed, and the smoothness of the cutting process is ensured. The design of the adjustable angle of the scraper provides flexibility for an operator, so that the scraper can be adjusted according to the specific condition of the scraper body, the surface of the scraper body is optimally contacted, and the adhesive is effectively scraped.

The invention discloses an air cooling type PEMFC low-hydrogen-consumption anode scavenging recycling system and a control method thereof, and belongs to the technical field of air intake and exhaust of an anode closed type air cooling type proton exchange membrane fuel cell. The scavenging gas recycling system comprises a first pressure sensor, a first electromagnetic valve, a gas inlet pipe, a gas outlet pipe, a second pressure sensor, an anode rear end water-gas management device and a voltage sensor, a gas source is communicated with a battery gas inlet through the gas inlet pipe, and the first pressure sensor and the first electromagnetic valve are installed on the gas inlet pipe; the battery gas outlet is communicated with the anode rear-end water-gas management device through the gas outlet pipe, the second pressure sensor is mounted on the gas outlet pipe, a gas outlet path for discharging gas in the device is arranged at the rear end of the anode rear-end water-gas management device, and a third electromagnetic valve is mounted on the gas outlet path. The discharged anode reaction residual gas is collected and recycled, so that the hydrogen waste is reduced, bidirectional gas inlet is realized, the hydrogen consumption is reduced, the water distribution uniformity in the battery is improved, and the service life of the battery is prolonged.

The invention discloses an electroplating processing device and method for a high-thickness-diameter-ratio circuit board, and belongs to the field of circuit boards, the electroplating processing device for the high-thickness-diameter-ratio circuit board comprises a bottom equipment board, one end of the bottom equipment board is provided with an electroplating pool, and the top of the bottom equipment board is provided with a vertical sliding column; a first U-shaped frame is arranged at one end of the top of the vertical sliding column, a second U-shaped frame is arranged at the top of the first U-shaped frame, a clamping mechanism used for clamping a circuit board is arranged in the first U-shaped frame, and through the arrangement of the clamping mechanism, stable and uniform clamping force can be provided for the circuit board; the defects that local plating cannot be achieved or plating layers are not uniform due to poor contact are overcome, the circuit board can be integrally rotated out of the outer space of the vertical sliding column, workers do not need to accurately assemble and disassemble the circuit board with great effort, and the circuit board can be assembled and disassembled more safely in a more labor-saving mode.

This application relates to a spray structure for a humidifier, including a spray element with a water collection tank. The water collection tank has a water inlet at its bottom. Multiple spray holes are provided on one side wall of the water collection tank, evenly distributed along the extension direction of the water collection tank. A preset height is maintained between the spray holes and the bottom of the water collection tank, allowing water to accumulate in the water collection tank to the preset height before being sprayed out through the spray holes. This application aims to solve the technical problem of uneven water output from the spray holes in existing spray structures, resulting in uneven wetting of the humidifier filter.

The utility model discloses a preprocessor for quickly unfreezing freeze-dried fruits, which belongs to the technical field of fruit unfreezing, and is characterized in that the preprocessor comprises a shell, the front side of the shell is rotatably connected with a sealing door, and the front side of the shell is provided with a PLC (Programmable Logic Controller); a placement frame is arranged in the shell, a drainage hole is formed in the bottom of the inner wall of the placement frame, a swing assembly is arranged at the bottom of the placement frame, a spraying assembly is fixedly connected to the top of the placement frame, and by arranging the swing assembly, the placement frame can swing, so that freeze-dried fruits in the placement frame continuously change positions, and the freeze-dried fruits can be sprayed to the freeze-dried fruits. Compared with a standing state, all parts of the fruits can be heated and wetted more uniformly, the conditions that the surfaces of part of the fruits are dried and burnt due to local overheating and the interiors of the parts of the fruits are not completely unfrozen are effectively avoided, and it is ensured that each freeze-dried fruit can achieve the ideal unfreezing effect.