8776results about How to "Height adjustable" patented technology

The invention belongs to the technical field of mowers, and particularly relates to a mowing machine carrying a modular intelligent trolley, the modular intelligent trolley comprises a walking driving module and a power module, the walking driving module and the power module are connected through a first quick release assembly, and the mowing machine further comprises a cutting panel and a connecting support; a cutting cutter head is arranged on the cutting panel, the first end of the connecting support is fixedly connected to the upper surface of the cutting panel, and the second end of the connecting support is connected with the connecting assembly in a quick-release mode through a second quick-release assembly. The mowing platform and the power source of the mowing machine can be rapidly replaced, and the mowing machine with the structure is high in universality, good in adaptability and convenient and rapid to use.

The invention provides a petrochemical pipeline corrosion defect detection device and method, and relates to the field of pipeline defect detection. The detection device comprises a mounting plate, and further comprises a battery box mounted on one side of the mounting plate, and the extension structure comprises a transmission assembly arranged on one side of the mounting plate, a rotating frame rotationally connected to the outer side of the transmission assembly and a push arm rotationally connected to the outer side of the transmission assembly and rotationally connected with the rotating frame; a connecting wire connected with the controller is mounted on one side of the electromagnetic ultrasonic thickness measuring probe; the servo motor drives the lead screw to rotate, the moving frame drives the rotating frame to turn over, meanwhile, the auxiliary wheels and the moving wheels are tightly attached to the interior of the pipeline, the size adjusting function is achieved, the device can easily adapt to pipelines with different inner diameters so as to deal with various complex working conditions, the universality and flexibility of the detection device are enhanced, and the detection efficiency is improved. The problem that the size of a pipeline corrosion detection device in the prior art is inconvenient to adjust is solved.

The invention relates to the field of fluidization reaction, in particular to a staying-time-controllable multi-stage vibration fluidization gas-solid continuous reaction device which comprises a rack, a reaction bin and a vibration device, the reaction bin is divided into at least two bin chambers and a discharging chamber through partition plates, the adjacent bin chambers are communicated through first communication openings, and the vibration device is arranged in the rack; the discharging chamber is communicated with the adjacent bin chamber through a second communication port; each chamber is provided with an air outlet, the lower end of each chamber is provided with an air inlet, each air outlet is provided with a filtering mechanism, and the air outlet of each chamber is communicated with the air inlet of the adjacent chamber through a connecting pipe except the chamber farthest from the discharging chamber; a breathable supporting plate is arranged at the lower end of the reaction bin. According to the invention, the contact time of the gas-solid reaction materials can be effectively regulated and controlled according to the reaction process conditions, the gas-solid reaction is thorough, the powder applicability is high, and the technical problems that the existing gas-solid slow reaction system is difficult to realize continuous reaction and low in reaction efficiency are solved.

The invention provides strip magnetizing equipment which comprises a machine body, a strip, a transmission mechanism, a coating mechanism, a baking mechanism and a magnetizer, the strip penetrates through the machine body and is conveyed through the transmission mechanism, the coating mechanism is arranged on the front side of an inlet of the machine body in the conveying direction and used for coating the strip with a coating capable of being magnetized, and the baking mechanism and the magnetizer are arranged on the machine body. The baking mechanism dries the coating on the strip, and the magnetizer magnetizes the coating. According to the strip magnetizing equipment provided by the invention, continuous magnetizing of the strip can be realized, and the production efficiency of the magnetic strip is greatly improved.

The utility model discloses a hollow glass winding device, relates to the technical field of hollow glass winding, and aims to solve the problems that a traditional hollow glass winding device needs to position the starting point of an adhesive tape for the second time after completing primary winding, and meanwhile, a warm edge adhesive tape subjected to winding is easy to distort and deform and the radian of a corner is too large. The glass feeding device comprises a glass carrying frame, a movement mechanism used for driving glass to move horizontally is installed on the glass carrying frame, a fixing column is further connected to the surface of the side, provided with the movement mechanism, of the glass carrying frame, a machine head is connected to the fixing column in a sliding mode, and a strip feeding mechanism is further arranged on the outer side of the glass carrying frame. A guide wheel set, a transmission wheel, a pressing mechanism and a cutter are installed at the end, close to the glass carrying frame, of the machine head, the pressing mechanism is arranged on the side, away from the guide wheel set, of the transmission wheel, and the cutter is arranged on the side, away from the transmission wheel, of the pressing mechanism.

The invention provides a slip machining device which comprises a mandrel, an elastic supporting assembly arranged on the outer surface of the mandrel, a first pressing plate and a second pressing plate, the outer surface of the mandrel is sleeved with the first pressing plate and the second pressing plate, a first clamping groove and a second clamping groove are formed in the first pressing plate and the second pressing plate respectively, and the two ends of a slip are clamped in the first clamping groove and the second clamping groove respectively. The end, away from the mandrel, of the elastic supporting assembly abuts against and makes contact with the surface of the slip. According to the slip machining device, enough supporting force can be provided through the first pressing plate, the second pressing plate and the elastic supporting assembly, vibration reduction performance can be provided for the slip through the elastic supporting assembly, and therefore the slip has good stability in the machining process, the slip is prevented from falling off from the loading mechanism, and the machining efficiency is improved. The workpiece precision and the machining efficiency are improved.

The invention relates to the technical field of wheelchairs, in particular to a wheelchair front cross-country wheel capable of being quickly assembled and disassembled, which is applied to wheelchairs and comprises a cross-country wheel assembly, a connecting assembly and a mounting assembly, a wall pipe is fixedly connected to the wheelchair, and the mounting assembly is clamped on the wall pipe; the cross-country wheel assembly comprises a cross-country wheel, a connecting frame and a fender, the cross-country wheel is rotationally connected to the connecting frame, and the fender is fixedly connected to the connecting frame; the connecting assembly comprises an adjusting plate and a first hoop, a plurality of second through holes are formed in the adjusting plate, the first hoop is detachably connected to one side of the adjusting plate, an angle adjusting assembly is arranged on the other side of the adjusting plate, and the adjusting plate is detachably connected to the connecting frame through the angle adjusting assembly. The passing ability of the manual wheelchair can be improved, and the device is convenient to disassemble and assemble, wide in application range, capable of being matched with wheelchairs of different models and convenient to carry and maintain.

The present invention discloses a shared suspended charging pile for new energy vehicles, and relates to the technical field of charging piles. The shared suspended charging pile for new energy vehicles comprises a mounting base, a slide is provided on the mounting base, a threaded rod is rotatably connected inside the slide, a first drive motor is fixedly installed on one side of the mounting base, an output end of the first drive motor is fixedly connected to the threaded rod, a moving block is slidably connected inside the slide, the inside of the moving block is threadedly connected to the surface of the threaded rod, a moving sealing box is fixedly installed on one end of the moving block away from the mounting base, so that the charging pile moves downward and moves to the top of the new energy vehicle, so that the position and height of the charging pile can be adjusted according to the needs of use, so that the new energy vehicle can be charged, the convenience of charging the new energy vehicle is improved, the space occupation is reduced, and the waste of the shared charging station area is reduced.

The invention discloses a low-altitude fertilizer spraying unmanned aerial vehicle applied to modern agriculture, and relates to the technical field of agricultural instruments.The low-altitude fertilizer spraying unmanned aerial vehicle comprises an unmanned aerial vehicle body, a pesticide tank is fixedly connected to the lower side of the unmanned aerial vehicle body, an air pump is fixedly connected to the outer wall of the pesticide tank, and the output end of the air pump communicates with the interior of the pesticide tank; a feeding pipe is further fixedly connected to the outer side wall of the medicine tank, the interior of the medicine tank communicates with the outer side of the medicine tank through the feeding pipe, a sealing cover is in threaded connection with the inner wall of the end, away from the medicine tank, of the feeding pipe, and a fertilizer spraying mechanism is arranged in the middle of the medicine tank. When the fertilizer is sprayed, the pigment can be sprayed out through the atomization spray head to mark the sprayed area, the problem that due to insufficient fertilizer, part of land parcels are lack of fertilizer or excessive fertilizer is sprayed is solved, the accuracy and uniformity of fertilizer spraying are improved, and the fertilizer spraying device has the advantages of being high in practicability and capable of effectively conducting refined fertilizer management on crops.

The invention relates to the technical field of glycerol triacetate preparation, in particular to an esterification phase splitter for preparing glycerol triacetate, which comprises a tower tray arranged in a rectifying tower, umbrella-shaped covers are uniformly distributed on the upper surface of the tower tray, and the tower tray comprises a movable tray, a fixed tray, a riser and an adjusting mechanism. By optimizing the structure of the umbrella-shaped cover and the design of the adjusting mechanism, the problems of a viscous layer and entrainment caused by high viscosity of glycerol triacetate are solved, by reducing the diameter of the bottom of the umbrella-shaped cover and reducing the comprehensive height of the overflow weir, the liquid flowing space is enlarged, the liquid retention time is shortened, and by forming an air inlet groove and an adjusting hydraulic oil cylinder, the liquid retention time is shortened. The gas-phase flow area is increased, gas-liquid contact is optimized, entrainment is reduced, through adjustment of the hydraulic oil cylinder, adaptation to the requirements of different reaction stages is achieved, the height of the downcomer is increased, and the flooding risk is reduced.

The drilling device for mechanical part machining comprises a machining table and a drilling machine body, a protection mechanism is arranged on the drilling machine body, the drilling machine body comprises a feeding table, a motor and a drill bit, the motor is installed on the feeding table, and the drill bit is driven through the motor; the protection mechanism comprises a protection sleeve, a fixed sleeve, a transmission sleeve, an adjusting shaft sleeve, a compression spring, a first valve block, a second valve block, a first wave spring, a second wave spring, a start-stop piston and a grinding piece. The protection mechanism is installed on the outer side of the drill bit. The device has the advantages of being high in safety, convenient to operate and low in production cost, and the problems that metal chippings and cooling liquid generated in the drilling process of traditional equipment are prone to splashing, cleanliness and safety of the working environment are affected, supply of the cooling liquid is generally fixed and cannot be adjusted according to the actual rotating speed and the load condition of a drill bit, and the service life of the drill bit is affected are solved. And the cooling effect is not good.

The invention discloses a circuit board detection device for artificial intelligence software development, and relates to the technical field of circuit board processing, the circuit board detection device comprises a supporting seat and a circuit board body, the top of the supporting seat is provided with a top plate, the circuit board body is placed on the top plate, and a detection assembly for detecting the circuit board body is arranged above the top plate. According to the circuit board detection device for artificial intelligence software development, through combination of a lifting motor and lead screw transmission, up-and-down movement of a detection probe can be accurately controlled, so that the detection probe can be accurately in contact with a test point on a circuit board body; through the spline rod driven by the servo motor, the adjusting gear and other components, the detection probe can be adjusted up and down, and through a series of mechanical linkage, the bristles can automatically clean the outer wall of the detection probe in the moving process of the detection probe, so that impurities or residues possibly attached to the detection probe are effectively removed, and the detection efficiency is improved. And the detection accuracy and the long service life of the probe are ensured.

The invention discloses three-dimensional diversified notching equipment with an adjustable notch, and relates to the technical field of notching equipment.The three-dimensional diversified notching equipment comprises a rack and an adjusting mechanism, the adjusting mechanism comprises a supporting plate, an air cylinder is installed in the middle of the outer side of the supporting plate, and a sliding sleeve is fixedly installed at the telescopic end of the air cylinder; a bending guide rod is fixedly installed at the position, close to the sleeve, of the side of the outer side of the sliding sleeve, a cross beam is fixedly installed in the middle of the outer side of the sliding sleeve, a notch assembly is installed at the position, close to the linear driver, of the bottom of the cross beam, and the notch assembly comprises a C-shaped sliding block, and a flat plate is fixedly installed at the bottom of the C-shaped sliding block; and rotating connectors are installed at the corresponding positions of the outer sides of the flat plates, servo motors are installed at the rotating ends of the bottoms of the rotating connectors, and cutting cutterheads are fixedly installed at the output ends of the servo motors. According to the three-dimensional diversified incision equipment with the adjustable incision, the adjustable effect is achieved, the incision can be adjusted, the incision is diversified, and cutting is safe and reliable.

The utility model relates to a scrubber, in particular to a water absorption rake lifting mechanism convenient to adjust, which comprises a frame, a swing assembly, a driving assembly, a pressure applying assembly, a height adjusting assembly, an elevation angle adjusting assembly and a water absorption rake, and one end of the swing assembly is rotatably connected with the frame; one end of the driving assembly is rotationally connected with the frame; the pressure applying assembly is connected with the swinging assembly, and one end of the pressure applying assembly is rotationally connected with the frame and the driving assembly through the linkage assembly; the other end of the height assembly is in contact with the ground; the elevation angle adjusting assembly is installed on the swing assembly, and one end of the elevation angle adjusting assembly is rotationally connected with the swing assembly. The water absorption rake is installed on the swing assembly, and one end of the water absorption rake is hinged to the swing assembly. The elevation angle adjusting assembly is rotationally connected with one end of the water absorption rake. By means of the scheme, the problems that when an existing scrubber water absorption rake needs to be subjected to left-right height adjustment and front-back elevation angle adjustment, adjustment is difficult, and stability is poor can be solved.

The utility model relates to the technical field of material distribution, in particular to a concrete production material distribution mechanism for a concrete pump, which comprises a mounting seat mounted on the side surface of a concrete pump truck, a hydraulic cylinder is fixedly connected to the inner bottom surface of the mounting seat, and the output end of the hydraulic cylinder is fixedly connected with a lifting frame. A lifting frame is fixedly connected to the output end of the hydraulic cylinder, a material distribution frame is fixedly connected to the surface of one side of the lifting frame, a fixing seat is fixedly connected to the upper surface of the material distribution frame, and an arc-shaped fixing plate is connected to the surface of the other side of the fixing seat in an embedded mode. Limiting grooves and limiting rods limit lifting of the lifting frame, so that the height of the material distribution frame is adjustable, material distribution can be further conducted on flower bed molds with different thickness requirements, a first roller and a second roller are used for conducting paving operation, material distribution is more uniform, the material distribution frame prevents concrete from splashing, and a stepping motor is protected.

The utility model discloses a horizontal packaging machine, and relates to the technical field of packaging machinery. The utility model discloses a quick release type feeding tailstock, material conveyer, film walking device, roll film forming device, longitudinal sealing device, horizontal sealing device and electrical appliance box, adopts quick release type feeding tailstock, has quick release function, is convenient to clean feeding tailstock, ensures the hygiene of material on quick release type feeding tailstock, improves the production efficiency, reduces the production cost, and improves the production efficiency. The film feeding device is arranged below the material conveying device, namely, a lower film feeding mode is adopted, so that materials are directly conveyed to a rolled film after being output from the quick-disassembly type feeding tailstock, the materials are prevented from making contact with other devices outside the quick-disassembly type feeding tailstock, sanitation of the materials to be packaged is guaranteed, meanwhile, a protective cover is arranged, and the protective cover can be used for protecting the materials to be packaged. External pollution is avoided during longitudinal sealing and transverse sealing, the quick-frozen materials are protected to a certain extent, corrosion of the packaging machine caused by water vapor of the quick-frozen food is avoided, and the packaging machine can be waterproof and moistureproof.

The invention discloses inclined hole machining equipment for a compressor crankshaft. The problem that in the prior art, a drill floor cannot conveniently machine inclined holes of the crankshaft is solved. The device comprises a rack, a first moving mechanism arranged on the rack, a second moving mechanism arranged on the first moving mechanism in a sliding mode, a plurality of clamping mechanisms arranged on the second moving mechanism, a lifting mechanism arranged on the rack, a mounting base arranged on the lifting mechanism, a mounting plate rotationally arranged in the mounting base and an angle adjusting mechanism arranged on the mounting base. The drilling mechanisms are arranged on the mounting plate, and the balance mechanism is arranged in the rack and connected with the angle adjusting mechanism. According to the crankshaft inclined hole drilling device, the first moving mechanism, the second moving mechanism, the clamping mechanism, the lifting mechanism, the mounting base, the mounting plate, the angle adjusting mechanism and the drilling mechanism are matched, so that crankshaft inclined holes are conveniently machined, the machining efficiency of the crankshaft inclined holes is improved, and the labor intensity of workers is reduced.

The utility model discloses a municipal guardrail welding positioning tool, which belongs to the field of guardrail welding, and comprises a bracket used for placing a cross rod and a vertical rod, the bracket comprises a cross beam, and two sides of the cross beam are respectively provided with a plurality of support arms used for supporting the cross rod; end plates are arranged at two ends of the cross beam; a rotating shaft is arranged on one side of each end plate; the mounting height of the bracket is greater than the distance between the outer edges of two cross rods of the guardrail; the supports are arranged at the two ends of the bracket, and the rotating shafts are rotationally installed on the supports; the clamps are mounted on the bracket and used for clamping the vertical rods; and the positioning seats are mounted on the supporting arms and are used for supporting and positioning the cross rod. By turning over the bracket, double-sided welding of the guardrail is completed through one-time clamping, the clamping times during guardrail welding are reduced, the labor intensity of operators is reduced, the production efficiency is improved, and meanwhile, the stability and consistency of product quality are ensured.

The utility model discloses an auxiliary supporting device for a heading machine, which relates to the technical field of heading equipment and comprises a supporting column, a cross beam and a top beam. The cross beam is located between the two supporting columns which are connected in the left-right direction, first sleeve rods are arranged at the two ends of the lower portion of the cross beam, first sleeve bases matched with the first sleeve rods are arranged on the two opposite sides of the two supporting columns which are connected in the left-right direction, and the first sleeve rods are inserted into the first sleeve bases; shearing frames are arranged between the two connected cross beams and between the two supporting columns connected front and back, connecting bases are arranged on the cross beams and the supporting columns, and each end of each shearing frame is detachably connected with the corresponding connecting base through a bolt; the supporting column, the cross beam, the top beam, the shearing frame, the cross beam, the adjustable supporting rod and the telescopic rod can be disassembled and assembled, a worker can disassemble and maintain the supporting structure conveniently in the later period, a spiral inserting rod is inserted into the position below the earth surface, and therefore the whole device is more stable.

The utility model discloses a dust raising prevention device, and relates to the technical field of dust prevention equipment. The water spraying device comprises a supporting base, a driving motor is installed in the supporting base, the output end of the driving motor is connected with a supporting shaft, the upper surface of the supporting shaft is fixedly connected with a supporting seat, the upper surface of the supporting seat is provided with two fixing blocks, the two fixing blocks are both rotationally connected with connecting shafts, and a water spraying barrel is arranged between the two connecting shafts. A rotating shaft is connected to the output end of the driving motor; a scraping plate is arranged on the circumferential side face of the rotating shaft; a water spraying pipe is connected to one end of the water spraying barrel; a water storage tank is connected to one end of the water spraying pipe; the device can be moved to any required site through the self-locking universal wheels, the exhaust fan and the water pump are started to perform multi-direction treatment on surrounding dust, and the driving motor is started to enable the device to rotate so as to comprehensively control the surrounding dust.

The utility model relates to the technical field of offshore wind turbine hoisting, in particular to an integral hoisting frame for a cabin hub. Comprising a hanging bracket which is used for assisting in hoisting of a cabin hub. The hanging rope is connected to the upper portion of the hanging frame, and the hanging rope is used for connecting the hanging frame and a crane main hook; the lifting rope is connected to the lower portion of the lifting frame, and the lifting rope is used for connecting the lifting frame and a cabin hub; the multiple connecting assemblies are arranged, and the multiple connecting assemblies are arranged at the two ends of the hanging bracket correspondingly; the hanging bracket comprises a cabin hanging beam, a hub hanging beam and a connecting beam, and the connecting beam is detachably connected between the cabin hanging beam and the hub hanging beam. The flexibility of the lifting frame can be improved, so that the lifting requirements of different machine types can be met.

The utility model relates to the technical field of hydroponic vegetables, and discloses hydroponic vegetable culture equipment which comprises a base, the top of the base is fixedly connected with a sliding rod and a screw rod which are close to the left side and the right side of the base respectively, and the outer wall of the sliding rod and the outer wall of the screw rod are movably sleeved with supporting plates. A water culture frame is fixedly connected between the two supporting plates, the outer wall of a screw rod is in threaded connection with a threaded sleeve, the top of the threaded sleeve abuts against the bottom of the supporting plate on the right side, a liquid injection mechanism is arranged above the base, and a stirring mechanism is arranged on the liquid injection mechanism. According to the hydroponic vegetable culture equipment, a hydroponic frame is lifted to drive a supporting plate to vertically move along a sliding rod and the outer wall of a screw rod, and meanwhile a threaded sleeve is rotated to move along the outer wall of the screw rod and abut against the supporting plate, so that the supporting plate is supported and limited, the height of the hydroponic frame can be adjusted, and planting of vegetables with different heights is facilitated; and the practicability is improved.

The invention belongs to the technical field of tunnel segment repairing equipment, and particularly relates to supporting equipment applied to shield tunnel segment repairing and an installation method thereof.The supporting equipment comprises a bottom plate, a supporting platform is fixedly installed at the top of a guide plate, a guardrail is fixedly installed on the supporting platform, and a crawling ladder is fixedly installed on the side face of the supporting platform; a flange plate is fixedly installed in the center of the supporting platform through bolts, a threaded cylinder is fixedly installed on the flange plate, a threaded rod is in threaded connection with the interior of the threaded cylinder, and a servo motor is fixedly installed on the bottom plate. According to the supporting equipment applied to shield tunnel segment repairing and the mounting method of the supporting equipment, the height of the supporting platform can be conveniently and rapidly adjusted for use through a mounted threaded barrel and a mounted threaded rod, so that a servo motor works to push the supporting platform to move through cooperation of the threaded rod and the threaded barrel and a flange plate, and the supporting platform stably moves; and therefore, the purpose of adjusting the height of the supporting platform is achieved, different heights can be conveniently adjusted, and the flexibility of equipment is improved.

The utility model discloses a connector welding machine with an automatic polishing structure. The connector welding machine comprises a supporting structure, a machine body is arranged above the supporting structure, a control panel is arranged on one side of the outer wall of the machine body, a moving structure is arranged on one side above the machine body, clamping rotating structures are arranged at the two ends above the machine body, and a polishing device is arranged on one side of each clamping rotating structure. By means of the automatic polishing device, the welding seam of the pipe fitting can be automatically polished after the pipe fitting is welded, the surface flatness of the pipe fitting is improved, and efficiency is improved.

The utility model discloses foam thickness automatic detection equipment, which relates to the technical field of foam detection and comprises a detection table, an operation area is fixedly connected to one side of the detection table, a plurality of vertical rods are fixedly connected to the bottom of the detection table, a bottom plate is fixedly connected to the bottoms of the vertical rods, and electric control equipment is fixedly connected to the top of the bottom plate. A vacuum adsorption mechanism is arranged at the top of the detection table, movable frames are arranged at the two ends of the outer wall of the top of the detection table, limiting buffer mechanisms are arranged on the outer walls of the movable frames, distance adjusting mechanisms are arranged between the movable frames and the detection table, an equipment frame is arranged on the outer wall of the detection table, and a detection mechanism is arranged on the outer wall of the equipment frame. The foam on the top of the detection table can be subjected to vacuum adsorption treatment by arranging the vacuum adsorption mechanism, the detection stability is ensured, the foam can be buffered, stably contacted and limited by arranging the limiting buffer mechanism, and the detection stability is ensured; and by arranging the distance adjusting mechanism, the two ends of the foams with different sizes can be clamped, limited and fixed.

The utility model belongs to the technical field of full-automatic car washing machines, and particularly relates to a full-automatic car washing machine with the size convenient to adjust. The spraying device comprises a base, an electric sliding rail, two sliding sleeves, two spraying plates, an extension frame, a spraying frame and a positioning rod, the electric sliding rail is fixedly connected to the top of the base, the two sliding sleeves are symmetrically and fixedly connected to the top of the electric sliding rail, and the two spraying plates are fixedly connected to the sides, close to each other, of the two sliding sleeves correspondingly; the extending frame is connected to the inner wall of the sliding sleeve in a sliding mode, the top of the extending frame extends to the outer portion of the sliding sleeve, and the spraying frame is fixedly connected to the bottom of the extending frame. And the effect of adjusting the size of the full-automatic car washing machine is achieved, so that different car types can be washed according to use requirements, and the full-automatic car washing machine has good practicability.

The invention discloses a feed powder storage device, and belongs to the technical field of feed storage, the feed powder storage device comprises a base and a storage mechanism, the storage mechanism comprises a rotating frame, a sliding groove, a stirring assembly, a cleaning assembly, a drying assembly and a discharging assembly; a rotating frame is arranged in the middle of the inner side of the storage tank, the stirring assembly can drive the rotating frame to rotate on the inner side of the storage tank, powder on the inner side of the storage tank is stirred and prevented from caking, and in the working process of the stirring assembly, the powder on the inner side of the storage tank can be dried and dehumidified through the drying assembly. A cleaning assembly is further installed on the rotating frame, the inner wall of the storage tank can be cleaned in the rotating process of the rotating frame, the powder is prevented from being attached to the inner wall of the storage tank, the height can be adjusted, comprehensive cleaning operation on the inner wall of the storage tank is achieved, the caked powder can be smashed through a discharging assembly, and the powder can be discharged through a discharging assembly. And stable discharging is achieved, and the discharging effect is effectively improved.

The utility model discloses a stacking type AGV which comprises a vehicle body and a door frame arranged on the vehicle body, a cargo carrying table is connected to the door frame in a sliding mode, a pallet fork and a supporting fork are arranged on the cargo carrying table, and the supporting fork and the pallet fork are arranged in parallel. The pallet forks comprise the first bottom fork connected with the cargo carrying table and at least one sliding pallet fork connected to the first bottom fork in a sliding mode. The supporting fork comprises a second bottom fork connected with the cargo carrying table and at least one sliding supporting fork connected to the second bottom fork in a sliding mode, the balance fork is arranged, in the cargo loading and stacking process, stable supporting can be provided for the vehicle body through stretching-out of the supporting fork, and therefore the cargo loading and stacking efficiency is improved. The problem of inclination of the vehicle body is avoided, and the safety performance is improved.

The utility model relates to the technical field of sound equipment, and discloses a sound equipment fixing structure which is characterized in that an outer ring of a bearing is fixedly connected to the top of a cavity, a first bevel gear is fixedly connected to an inner ring of the bearing, a rotating shaft is movably inserted into the outer side of a fixing frame, and one end of the rotating shaft is located in the cavity and fixedly connected with a second bevel gear; a first threaded rod movably penetrates through the top of the fixing frame, the first threaded rod sequentially penetrates through the inner ring of the bearing and the first bevel gear, and three supports are hinged to the bottom of the fixing frame; the rotary handle drives the second threaded rod to rotate, so that the second threaded rod drives the bottom plate to move downwards, and the bottom plate abuts against the ground, thereby improving the placement stability of the support, and preventing the support from being collided and toppled over, and preventing the sound equipment body on the support from being damaged; according to the utility model, the height of the sound box body can be adjusted, the practicability of the fixing bracket is improved, and the sound box body is more convenient to install.

The invention relates to a method for manufacturing a low-wavefront-error double-blazed grating for electron beam gray lithography, which comprises the following steps of: decomposing dose parameters of an electron beam into average dose and dose difference, decomposing grating parameters into grating height and grating depth, and constructing a mathematical model between the average dose and the dose difference; through differential calculation and least square fitting, the relation between the dose parameter and the height and depth of the grating is optimized, and then high-precision manufacturing of the target grating is achieved. The method comprises the following specific steps: firstly, decomposing dose and grating parameters, and establishing a first mathematical model among grating height, depth and dose parameters; and then obtaining relational data through an experiment, performing optimization calculation by using the second mathematical model, and finally obtaining a dose parameter corresponding to the target grating. And finally, manufacturing the double-blazed grating with the low wavefront error according to the target parameters. According to the method, wavefront errors can be effectively reduced, the photoetching precision is improved, and the method has relatively good manufacturing consistency and is suitable for the production requirements of high-precision gratings.