77results about How to "Suitable for promotion" patented technology

The present invention relates to the field of communication, especially to an installation rack for installation of a communication antenna. The rack comprises a pedestal, the top portion of the pedestal is provided with a fixed bottom barrel, triangular support plates are uniformly arranged at the side wall of the fixed bottom barrel, the triangular support plates are fixed at the top portion ofthe pedestal, the top portion of the fixed bottom barrel is provided with a connection barrel, the top portion of the connection barrel is provided with an opening, spacing blocks are symmetrically arranged at left and right sides of the inner wall of the opening, the connection barrel is internally provided with a fixed block, the fixed bottom barrel is internally provided with an internal threadrotating drum, the bottom portion of the internal thread rotating drum is rotationally connected with the pedestal, the upper end of the internal thread rotating drum penetrates the fixed block, theouter side of the internal thread rotating drum is provided with a driven bevel gear, and the right side of the driven bevel gear is engaged with a drive bevel gear. The installation rack for installation of the communication antenna is novel in design and convenient to use, can achieve high regulation of a communication antenna, can achieve convenient regulation of the angle of the communicationantenna, is high in applicability and is suitable for promotion and application.

The invention relates to the technical field of cutting devices, in particular to a cutting device facilitating adjustment of a corrugated board. The device comprises a paper board conveying mechanism, a mounting frame is arranged above the paper board conveying mechanism, the top of the mounting frame is connected perpendicular to two first hydraulic telescopic rods, the lower ends of the first hydraulic telescopic rods are connected with a lifting frame together, a spline shaft is rotationally installed on the lifting frame, and one end of the spline shaft is coaxially connected with an output shaft of a motor fixedly installed on the lifting frame, and cutting mechanisms are symmetrically arranged on the two sides of the bottom of the lifting frame. According to the device, the positionof a cutting disc is adjusted through the hydraulic telescopic rods so that the width of a paper board can be adjusted, the arrangement of the paper board is convenient, and the device is suitable for popularization and use.

The invention discloses a hair dryer. The hair dryer comprises a connected seat, in which an inserting near slot is arranged. The left end surface of the connected seat is internally and rotatably provided with a rotary drum. The rotary drum is provided with a square clamping slot. The right end surface of the connected seat is provided with a placement slot. A push slot is linked between the placement slot and the inserting near slot. The connected seat on the left side of the inserting near slot is internally provided with a vertical-side slot. An inserting near block sliding leftward and rightward is arranged in the inserting near slot. The hair dryer has the following beneficial effects: the overall structure of the hair dryer is designed reasonably; power supply is safe and stable, thereby greatly reducing electric shock accidents when a connected head is plugged and unplugged; therefore, personal safety of people is effectively ensured; the connected head is released and unlocked conveniently and quickly; the hair dryer is suitable for promotion and application, thereby greatly reducing production cost; the exercise amount of people is increased because adjustments are made by manual control; and therefore, the hair dryer may help improve physical health of people.

The invention discloses a traditional Chinese medicine herbicide.The traditional Chinese medicine herbicide is prepared from the following components in parts by weight: 30-35 parts of Radix Tripterygii Wilfordii, 10-15 parts of Rhizoma Gastrodiae, 25-30 parts of Fructus Cnidii, 18-20 parts of Fructus Quisqualis, 5-12 parts of Cortex Pseudolaricis, 8-10 parts of Melia azedarach L., 5-8 parts of omphalia, 1-3 parts of Semen Abri Precatorii and 2-6 parts of Spina Gleditsiae.The traditional Chinese medicine herbicide has the beneficial effects that the herbicide which is prepared from traditional Chinese medicines can effectively prevent and treat various kinds of weeds, meanwhile does not harm the environment or farmlands, is good in weeding effect, does not harm humans, is suitable for being popularized and meets requirements.

The invention discloses a sculpture making technology. The sculpture making technology comprises the following steps of 1 mud fermenting, 2 skeleton model making according to a design pattern, 3 sculpture skeleton model covering by applying cement mud, 4 shaping, 5 smoothing through pushing, 6, duplicating, 7 mould repairing and mould supplementing, 8 sizing, 9 glass steel part module splicing, 10 grinding and 11 surface treating. According to the sculpture making technology, the technological steps are simple, the creation time is shortened, the cost is low, a sculpture is not out of shape and is not deformed, and the precision and the completeness are both obviously improved; in addition, the surface texture effect can be enhanced, the sculpture image is more vivid, and then the work achieves the best effect; surface treatment is conducted on the sculpture according to the environment, and then the shaped image is integrated with the ambient environment.

The invention discloses a porous composite organic phase change heat-storing material and a preparation method thereof, belonging to the field of energy materials. The phase change heat-storing material is a combination of n-octadecane and n-eicosane; a molecular sieve is taken as a carrier; the mass ratio of the phase change heat-storing material to the molecular sieve is 1:(1-5); and the mass ratio of the n-octadecane to the n-eicosane is 3:7-7:3. The invention further discloses a preparation method of the phase change heat-storing material. High-stability alkane is taken as the phase change heat-storing material, and the upper and lower limits of a phase change temperature are adjusted by combining the n-octadecane with the n-eicosane, so that the requirement of the phase change heat-storing material for an outer wall body of a building is met; moreover, the phase change heat-storing material is non-corrosive, and is prevented from being overcooled; and the molecular sieve is taken as a carrier, so that the problem of permeation of the phase change heat-storing material during heat absorption melting is solved, and the overall heat stability is enhanced.

The invention discloses an ironing device for processing a novel textile fabric. The device comprises a frame, the front side of the bottom end of the frame is fixedly connected with a dehumidifier, motors is arranged at the inner bottom end of the dehumidifier, the top end of every motor is rotatably connected with fan blades, a second carding roller is arranged at a position, close to the dehumidifier, in the frame, a first carding roller is arranged above the second carding roller, and a carding driven gear is mounted at one end of the second carding roller. The ironing device has a scientific and reasonable structure, and high-temperature steam is generated by a steam generated and is conveyed into an ironing plate in order to comprehensively iron the fabric, so the artificial labor intensity is reduced, and the production efficiency is improved; and the motors drive the fan blades to rotate in order to dry the textile fabric, so the processing cost is reduced, the ironing efficiency is improved, the ironing quality is improved, and the ironing device is suitable for being comprehensively promoted and used.

The invention discloses a test bench for a hydraulic excavator pump valve, comprising a power mechanism, a hydraulic pump operating platform, a control platform, a pump test platform mechanism, a main control valve test platform mechanism and connecting pipelines. The test bench is characterized in that the power mechanism comprises a variable-frequency motor and a torque sensor, wherein the control end of the variable-frequency motor is connected with the control platform; the signal output end of the torque sensor is connected with the control platform; the pump test platform mechanism comprises two hydraulic pipelines which are connected in parallel; the two hydraulic pipelines are internally and respectively provided with a first hydraulic control device and a second hydraulic controldevice, output ports of which are connected with an oil tank by a first flow meter; the main control valve test platform mechanism is provided with a hydraulic pipeline for connecting a hydraulic pump and a main control valve to be tested; a second flow meter is arranged in the hydraulic pipelines in series, and the main control valve test platform mechanism further comprises a hydraulic loop connected with the main control valve; and a third adjustable overflow valve and a third flow meter are connected in the hydraulic loop in series. The test bench disclosed by the invention can be convenient to carry out comprehensive test on the pump valve.

The invention discloses a photoelectric effect tester. The photoelectric effect tester includes a charging indication lamp, a tester body, a switch and a voltage polarity knob; a protective shell is fixed onto the exterior of the tester body; and a voltage input interface, which is adjacent to the bottom end of a test display screen, is embedded into the front surface of the tester body. Accordingto the photoelectric effect tester of the invention, the protective shell is adopted, so that the compressive capability of the tester body can be improved, and the detector body can be prevented from being damaged by external collision; a heat-dissipating plate is adopted, so that air circulation speed can be increased through the rotation of fan blades, and therefore, a heat dissipation effectcan be improved, and the service life of the tester body can be prolonged; and a first damping spring and a first buffer plate are adopted, so that the detector body can be protected during a movementprocess, and therefore, the problem of damage to the protective shell caused by hitting due to the swing of the detector body can be solved. The photoelectric effect tester of the invention has the advantages of convenient installation, convenience in carrying and suitability for general popularization and use. According to the photoelectric effect tester, the service life of the detector body can be prolonged.

The invention discloses a safe welding equipment, which comprises a connection box, and a baffle plate fixedly arranged on the top of the connection box, an insertion slot is arranged inside the connection box, and the left end surface of the connection box A swivel is rotatably provided, and a rectangular snap-in slot is provided in the swivel, a receiving slot is provided in the right end surface of the electrical connection box, and a propulsion slot is connected between the receiving slot and the insertion slot, A vertical slot is provided in the connection box on the left side of the insertion slot, and an insertion block is provided in the insertion slot to slide left and right. The overall structure design of the present invention is reasonable, and the connection is safe and stable, greatly It reduces the electric shock accidents when plugging and unplugging the electric connector, effectively guaranteeing the safety of people's lives, the unlocking and locking of the electric connector is convenient and fast, suitable for popularization and use, and greatly reduces the production cost, and through manual control adjustment, Increasing the amount of exercise of people is helpful to people's health.

The invention discloses an alignment method and system of multiple paths of parallel data signals, and relates to the field of reception of multiple paths of parallel signals. The method comprises the following steps: performing analog-to-digital conversion on two paths of test analog signals to obtain two paths of test digital signals, computing two paths of adjustment parameters according to the two paths of test digital signals, adjusting the corresponding parallel digital signals according to the adjustment parameters, and the adjusted parallel digital signals are parallel data automatically aligned by the alignment method and system disclosed by the invention. By adoption of the alignment method and system disclosed by the invention, the paths of parallel data can be aligned simply and accurately, receiving terminal data demodulation errors are avoided, use of people is very convenient, and thus the alignment method and system is suitable for popularization.

The invention discloses an integrating and conveying mechanism with the tracing function. The integrating and conveying mechanism with the tracing function comprises a tension servo motor (1) and a thrust servo motor (2) and is characterized in that the tension servo motor (1) drives a tension chain (5) fixedly provided with a tension integration conveying belt (4) by driving a tension chain wheel (3); the thrust servo motor (2) drives a thrust chain (8) fixedly provided with a thrust integration conveying belt (7) by driving a thrust chain wheel (6); the tension chain (5) and the thrust chain (8) are arranged in parallel so that the tension chain (5) and the thrust chain (8) cannot interfere with each other in the running process; and the tension integration conveying belt (4) and the thrust integration conveying belt (7) are arranged in a spaced manner. Under the joint action of the tension servo motor and the thrust servo motor, the tension integration conveying belt and the thrust integration conveying belt which are adjacent to each other mutually make tracing movement, the integrating and conveying efficiency and precision of materials are improved, and the integrating and conveying mechanism with the tracing function is suitable for being used and popularized.

The invention relates to a water insoluble dietary fiber prepared from red alga plant gracilaria agar residue and a preparation method thereof. The water insoluble dietary fiber is prepared from residue obtained by processing red alga plant gracilaria agar as a raw material through the procedures of washing treatment and acid treatment, bleaching treatment, drying and pulverizing on water soluble dietary fiber. The water insoluble dietary fiber has powdery appearance and light yellow color, the water holding capacity is 4.325, and the expansion force is 3.93 ml/g. The preparation method has short reaction time, simple and practical technology and low investment and quick effect taking in actual production and is applicable to popularization and application.

The invention discloses a cosmetic packaging machine convenient for pasting description paper. The cosmetic packaging machine convenient for pasting description paper comprises bases, an installing frame, chain plates, a paper pasting structure and a storage table, wherein the installing frame is of a U-shaped blocky structure; a group of bases is fixed at the bottom of the installing frame; an installing cavity is formed inside the installing frame; a bearing structure comprises a bearing table and a clamping structure; the bearing table is of a rectangular blocky structure, and is clamped and arranged in a clamp connection cavity; an accommodating cavity for accommodating a bottle body is formed in the top of each bearing table; a clamping structure is arranged in each accommodating cavity; a pressing and covering roller is arranged at the side edge, near a conveying belt, of a slide block; and two groups of meshing discs matched with the clamping structure are sleeved on the pressing and covering roller. The cosmetic packaging machine convenient for pasting description paper has the advantages that the design is reasonable; the bottle body can be driven to rotate for labeling inthe work process; the problem that labeling is not facilitated since the bottle body does not rotate is avoided; and the cosmetic packaging machine convenient for pasting description paper is suitable for being used and popularized.

The invention relates to a compound herbicide, as well as a preparation method and a using method thereof. The compound herbicide mainly comprises 1-75% by weight of lvxiancaolin, 1-75% by weight of nicosulfuron and the balance of auxiliary materials, and the formulation of the herbicide can be oil suspension, wettable powder or water dispersible granules. The preparation method comprises the following steps: supplementing the auxiliary materials into 1-75 parts by weight of the lvxiancaolin and 1-75 parts by weight of the nicosulfuron till 100 parts by weight, then mixing and uniformly stirring; and grinding, crushing or extruding the raw materials which are uniformly stirred. The using method is that the compound herbicide is used during the 4-6 leaf stage of corn, the 2-3 leaf stage of gramineous grass or the 2-6 leaf stage of broadleaf weeds. The compound herbicide disclosed by the invention has the advantages of simple production process, good product effects, broad weed control spectrum, special effects against the broadleaf weeds, safety to the corn, no impacts on afterreap crops, low control cost and convenience in use.

The invention provides a method for detecting water-soluble magnesium in saline-alkali soil. The method comprises the following steps of: preparing a soil leaching agent, processing the soil leaching agent, and analyzing the atomic absorption spectrum. In the method provided by the invention, the saline-alkali soil leaching agent is clear and transparent, interference of colloid particles is avoided, and the absorbance is reduced. The anion concentration is the sum of the equivalent concentrations of CO3<2->, HCO<3->, Cl<-> and SO4<2->, and the cation equivalent concentration is the sum of the equivalent weights of ions Ca<2+>, Mg<2+>, Na<+> and K<+>. Theoretically, the anion equivalent concentration of the 8 ions in soil is similar to the cation equivalent concentration; and in the method provided by the invention, the sum of cation equivalent concentration is similar to the sum of anion concentration, and the detection result is closer to the real value. The method provided by the invention has relatively good reproducibility. The method for detecting water-soluble magnesium in saline-alkali soil provided by the invention is simple and practical, has relatively low cost and deserves popularization.

The invention discloses an ultrasound knife for an ophthalmologic operation. The ultrasound knife comprises an ultrasound knife instrument, a rotating support is installed at one corner of the top ofthe ultrasound knife instrument, a longitudinal telescopic rod is rotatably arranged on the ultrasound knife instrument through the rotating support, a transverse telescopic supporting rod is fixedlyconnected to the upper end of the longitudinal telescopic rod, a storage device is fixedly arranged at the end, away from the longitudinal telescopic supporting rod, of the transverse telescopic supporting rod and used for storing the head of the ultrasound knife, and a winding mechanism is fixedly arranged on the part, on one side of the storage device, of the telescopic supporting rod, and comprises a round bottom plate, a screw rod and a movable disc. The longitudinal telescopic supporting rod and the transverse telescopic supporting rod are arranged rotatably, in this way, during the operation, a connecting line of the head of the knife and the instrument is wired, the operation is conducted conveniently, meanwhile, the winding device can take up and pay off the wire, the length of thewire is determined according to the operation, during the operation, pulling and falling caused by the wire are voided, the convenience of the operation is improved, and the ultrasound knife is suitable for application and popularization.

The invention discloses a novel push-type micrometer caliper. The micrometer caliper comprises a pipe body. The pipe body is movably provided with a rotation sleeve. A measurement top rod is fixedly inserted into the rotation sleeve. The pipe body is fixedly connected to a fixed rod. A U-type scale holder is movably provided with a measuring anvil. The fixed sleeve is engaged with the internal thread on the rotation sleeve through an external thread. One side of the measurement top rod, which is far away from the U-type scale holder, passes through and enters into the pipe body via a fixed seat in the pipe body. A pressing rod passes through the pipe body and is fixedly connected to a first connection rod. A second connection rod is movably inserted into the first connection rod. Driven wheels are engaged with a first driven gear. The first driven gear is engaged with a second driven gear through a connection rod. In the invention, object measurement can be performed without repeatedlyrotating a threaded rod, and the object measurement can be completed only through pressing a push plate, and simultaneously, during a measurement process, there is no need to fix the U-type scale holder by hands so that convenience is brought for the measurement of a measurer, and the micrometer caliper is suitable for popularization.

The invention discloses a height and angle adjustable wheelchair seat. The wheelchair seat comprises a base, two parallel handrails are arranged at the top of the base, an action mechanism is arranged on one bottom side of the base, a movable cavity is arranged on one side inside the base, a limit groove is arranged on the lower end of the base, a drive device is fixedly arranged in the limit groove, an output shaft of the drive device passing the side wall of the base is extended into the movable cavity, a screw rod is fixed on the end of the output shaft of the drive device, one end of the screw rod is connected in a transmission mode with one end side wall in the movable cavity, a movable board is arranged inside the movable cavity, thread through holes are arranged in the movable board, the screw rod is passed through the thread through holes, and slide blocks are fixed on two sides of the movable board. By the height and angle adjustable wheelchair seat, the automation control for the height and angle of the wheelchair is achieved by the combination of the drive device, the screw rod, a bearing plate, and a control device, the patient's charge is greatly expedient, and the wheelchair seat is suitable for generalization.

The invention provides a method for detecting water-soluble potassium in saline-alkali soil, which includes preparation of soil leaching solution, treatment of leaching solution and atomic absorption spectrometry analysis. In the saline-alkali soil leachate of the present invention, after colloid coagulation and precipitation, the leachate becomes clear and transparent, the interference of colloid particles is avoided, the light absorption value is reduced, and the measured result is closer to the real value. The reproducibility of the measurement results of the method of the present invention is good. The total equivalent concentration of anions and cations, the anion concentration is the sum of the equivalent concentrations of CO32-, HCO3-, Cl-, and SO42-, and the equivalent concentration of cations is the sum of the equivalent concentrations of Ca2+, Mg2+, Na+, and K+ ions. Theoretically speaking, the anion equivalent concentration sum and the cation equivalent concentration sum should be close to the eight ions in the soil. The cation equivalent concentration sum measured by the method of the present invention is close to the anion concentration sum, and the result is closer to the real value. The method of the invention is simple and practical, has low cost and is suitable for popularization.

The invention relates to the technical field of three-dimensional detection of the outer surface of a steel pipe, in particular to a detection method for identifying water drops in three-dimensional detection of the outer surface of a seamless steel pipe. The detection method comprises data preprocessing, model training and online detection. According to the method, the seamless steel pipe is detected through three steps of data preprocessing, model training and online detection, in actual production, the three-dimensional laser sensor splices contour lines of a pipe body and converts the contour lines into a to-be-detected steel pipe surface depth map, and a water drop detection model is used for detecting the depth map; according to the method, morphological operation and out-of-region search are carried out on the depth image to obtain the to-be-detected region suspected to be water drops, and then a convolutional neural network is used for identifying the to-be-detected region, sothat the water drops on the surface of the steel pipe can be accurately identified, the steel pipe three-dimensional detection false alarm is greatly reduced, the detection time is short, and the method is suitable for popularization and application.

The invention provides a WIFI-based scenic spot entrance guard examination system. The system comprises an information management subsystem which comprises a user authentication module, a positioning module, a database module, a processing module and an output module, wherein the user authentication module is used for carrying out identification and authentication on a user; the positioning module is used for determining a scenic spot where the geographical position of the user belongs; the database module is used for storing identity information and travel route information on the user; the processing module is used for processing real-time geographical position information, real-time time-date information, identity information and travel route information on the user and operation feedback of the user; the output module is used for outputting information obtained through the processing of the processing module. The invention further provides a use method of the WIFI-based scenic spot entrance guard examination system. The aim of replacing the traditional scenic spot entrance guard examination systems and methods is achieved through an intelligent terminal on the basis of a WIFI network environment, a large number of human, material and financial resources required to be consumed by a scenic spot entrance guard examination link are further reduced, intermediate links are avoided, and miscellaneous and complicated flows are eliminated.

The invention provides a shooting platform. The shooting platform comprises a bracket and a background sheet, wherein the bracket is formed by multiple sections of pipe bodies in a spliced manner; the bracket at least comprises a left side part consisting of a first vertical pipe, a first bent pipe, a first horizontal pipe and a second bent pipe which are connected, and a right side part consisting of a second vertical pipe, a third bent pipe, a second horizontal pipe and a fourth bent pipe which are connected; the left side part and the right side part are connected through a third horizontal pipe and a fourth horizontal pipe; the bracket is provided with multiple stand bars for supporting the bottom; and the background sheet covers along the pipes to form a vertical part, a horizontal part and a lower swing part which are connected. According to the shooting platform, various kinds of elements required by the existing shooting are taken into consideration; the problems existing in product placement, background supporting, obvious distinction between a background color and the product, and the like are solved; in addition, by adoption of the shooting platform, the post processing of product photos can be carried out by a designer conveniently; and the labor force is reduced, and photo shooting can be implemented by only one person.

The invention relates to a manual-free control mechanism of a household faucet. The manual-free control mechanism of the household faucet is characterized by comprising an external pedal box and a pressure transmission device, wherein the external pedal box and the pressure transmission device independently control the faucet to open and close a valve through mechanical transmission. According tothe mechanism, the opening and closing control of the valve of the faucet is provided, the opening and closing of the faucet is realized through a foot stepping control mode, in addition, the water storage dead weight of a floating type water tank can be used for driving the valve of the faucet to be continuously opened as well, the opening of the valve of the faucet can be realized without manualor continuous foot stepping, the faucet valve pure mechanical type control structure which is independently realized by relying on the driving of a pedal plate and dead weight of water is strong in stability, and the mechanism is suitable for popularization and application.

The invention discloses a health information management system which comprises a signal acquisition system, a wireless transmitting-receiving system and a terminal server. The signal acquisition system is in communicating connection with the wireless transmitting-receiving system, the wireless transmitting-receiving system is in communicating connection with the terminal server, the signal acquisition system is connected with multiple health information acquisition terminals, and the terminal server is further connected with a mobile phone client-side. The health information management system collects information reports detected by the health information acquisition terminals through the signal acquisition system, then sends health reports to the terminal server through the wireless transmitting-receiving system for checking of doctors, and the doctors make feedback opinions according to the health reports and sends the health reports to the mobile phone client-side of a user. The health information management system is convenient to use and suitable for popularization.

The invention relates to the technical field of medical care, in particular to an infusion device for medical general nursing. The infusion device comprises a bottom plate, wherein a vertical fixing column is arranged on a top face of the bottom plate, a rotatable rotating column is arranged on a side face, close to a top end, of the fixing column by a circle, a fixing block is arranged at an end,away from the fixing column, of the rotating column, a rod body between the rotating column and the fixing block is designed to be a guide rod, a sliding sleeve is arranged on the guide rod in a sliding fit mode, a clamping sleeve is rotatably installed at a bottom of the sliding sleeve through a damping rotating shaft, and an infusion bottle can be clamped through the clamping sleeve. The infusion device solves a problem that an infusion stand has a simple structure and cannot meet needs of different infusion environments. According to the infusion device, multiple rotating columns distributed on an infusion support in a circumferential direction can conduct infusion on a plurality of patients at the same time, positions of the clamping sleeves arranged on the rotating columns can be adjusted, the positions can be changed in real time according to different infusion requirements, thus the infusion device has a significantly expanded application range and is suitable for popularization and use.

The invention discloses a wind power generation wind power generator unit shell self-cleaning device, and relates to the technical field of wind power generator unit cleaning equipment. In order to solve the problem that due to the fact that no specially designed cleaning device is arranged for an existing wind power generator unit shell, dust is accumulated on a wind power generator unit for a long time and is not easily cleaned away, the following scheme is put forward. The wind power generation wind power generator unit shell self-cleaning device comprises a wind power generator unit shelland wind wheel blades. A tower frame is fixedly installed on the surface of the bottom of the wind power generator unit shell, and the side face of the wind power generator unit shell is connected with the wind wheel blades in a rotating mode. Bolt holes which are uniformly distributed are formed in the side face, far away from the wind wheel blades, of the wind power generator unit shell, fixingpieces which are uniformly distributed are connected with the surface of the side, far away from the wind wheel blades, of the wind power generator unit shell, and a fixing bolt is installed on the surface of the side, far away from the wind wheel blades, of each fixing piece in a rotating mode. The wind power generation wind power generator unit shell self-cleaning device is novel in structure, fulfills the function of flushing and cleaning the wind power generator unit shell, and fulfills the function of conducting dust sweeping operation on the wind power generator unit shell.

A continuous-conveyance type coating system is characterized by comprising a material storage hopper, a vibrating hopper, a spiral material conveyer, a material counter and a manual isolation valve, wherein a material level detector is arranged on the inner wall of the material storage hopper, the spiral material conveyer is arranged at the bottom of the material storage hopper, the material counter and the manual isolation valve are arranged on a pipeline between the spiral material conveyer and the vibrating hopper, the bottom of the material storage hopper is further provided with a rotating rod which is located above the spiral material hopper and used for preventing blockage, and the rotating rod is driven by a motor to rotate; and the vibrating hopper is provided with multiple vibrators, a nitrogen conveying pipe used for conveying coating communicates with the upper portion of the vibrating hopper, and the nitrogen conveying pipe is inclined downwards.

The invention discloses a baby bed, comprising a bed frame, a hammock detachably arranged on the bed frame and a sleep basket in detachable connection with the hammock, wherein the hammock is supported by a plurality of rigid strips and encloses an accommodating space in cooperation with a piece of hammock seat cloth. The periphery of the hammock seat cloth is correspondingly provided with pipe bodies for the penetrating of the rigid strips. At least one connecting piece is arranged between the hammock and the sleep basket and is arranged on the rigid strips of the hammock; the sleep basket is detachably arranged on the connecting piece. The baby bed has a simple structure; the sleep basket can be reliably and safely positioned; the baby bed can meet requirements of users and is suitable for popularization.

The invention discloses a preparation method and application of flower-like silicon dioxide nano abrasive particles. The flower-like silicon dioxide nano abrasive particles are silicon dioxide nano particles with extremely irregular shapes, and the preparation method comprises the following steps: preparing flower-like seed crystals by utilizing irregular hydrolytic condensation fracture of tetraethyl orthosilicate on the surfaces of small water drops in a water-in-oil system, and by utilizing asymmetry of the seed crystals in an oil-in-water system during silicic acid condensation growth, obtaining the flower-shaped silicon dioxide nanometer abrasive particles. Compared with conventional spherical silicon dioxide abrasive particles, the flower-like silicon dioxide nano abrasive particleshave the advantages that the material removal rate of sapphire wafers is increased by 117%, and the surface roughness after polishing can be effectively reduced.