229results about How to "Solve the problems in the background technology" patented technology

The invention discloses an electric heat airglow type smoking system which comprises a cigarette holder and a cigarette chamber, wherein the cigarette holder and the cigarette chamber are mutually matched; a heating element and a placing cavity which is filled with tobacco are arranged in a shell of the cigarette cavity; one end of the placing cavity is connected with one end of the heating element; the other end of the placing cavity is connected with the cigarette holder; and the other end of the heating element is connected with a control power supply. According to the heat airflow type smoking system, hot air and the heating element are jointly used for heating, and the airflow of the hot air is capable of uniformly flowing through the tobacco to heat the whole tobacco, so that the volatilization of the volatile matters of the tobacco smoke forming products and the smoke generation of the tobacco can be effectively improved and then the problem in the background art is solved.

The invention relates to the field of mobile application information systems, in particular to a mobile catering dish ordering and intelligent recommending system. The mobile catering dish ordering and intelligent recommending system comprises a mobile catering dish ordering terminal and a customer dish ordering intelligent recommending module. The mobile catering dish ordering terminal is a 7-inch-screen Android intelligent tablet with a Cortex-A9 processor, catering application software of the terminal has a foreground dish ordering function, a menu browsing function, a business dynamic condition function, a data maintenance function and the like; the customer dish ordering intelligent recommending module comprises a data mining module and a situation analyzing module, feature extraction is conducted on the former dish ordering situation of a customer, association rules in a model base are called to conduct intelligent analysis, and then recommendation is conducted on the customer. The mobile catering dish ordering and intelligent recommending system has the advantages that the mobile dish ordering function is provided, and therefore the customer can browse a menu and know specialties in a restaurant conveniently; intelligent recommendation is conducted on the basis of situational awareness and data mining, therefore, the time of the customer and the time of a waiter are greatly saved, and the labor cost is saved.

The invention relates to the technical field of dish washing machines, in particular to a novel dish washing machine. The novel dish washing machine comprises a machine shell. An inner container is arranged in the machine shell. A center shaft is arranged in the center of the inner container. A dish rack is arranged on the center shaft. A spray pipe is arranged in the inner container. A plurality of water spray holes are evenly formed in the spray pipe. The center shaft is connected with a driving device. According to the dish washing machine, the dish rack is arranged on the center shaft, the center shaft is driven by the driving device to rotate, the dish rack continuously rotates along the center shaft while the spray pipe sprays out water, bowls and dishes are washed in all directions, no dead angle residue is left, and tableware on the dish rack can be completely cleaned.

The invention discloses a steel plate double-sided derusting and the paint spraying integrated machine. The machine comprising a workbench with the supporting legs, the workbench is provided with a first mounting plate fixed on the workbench at two sides of the workbench, between the two first mounting plates are arranged a first conveying assembly, the tail end of the first conveying assembly isprovided with a derusting component fixed on the workbench, one side of the rust removal assembly is provided with a second mounting plate fixed at both sides of the workbench, a second conveying assembly is arranged between the two second mounting plates, one end of the second conveying assembly is located above the second conveying assembly and is provided with an upper-layer paint spraying assembly fixed to the second mounting plate, one side of the upper paint spraying assembly is provided with a drying assembly fixed on the second mounting plate, one side of the drying assembly is provided with a turning plate assembly fixed to the second mounting plate, and one side of the turning plate assembly is provided with a bottom paint spraying assembly fixed to the second mounting plate. Themachine may be performed while the rust removal, paint spraying, the paint spraying effect is good, and the paint spraying efficiency is high.

The invention discloses a combined type feed storing device which is convenient to move and facilitates material taking. The combined type feed storing device comprises a base, a tank body, a discharging opening and a first ventilation hole. Rolling wheels are fixed to the lower end of the base. The tank body is connected with a supporting base through a fixing clamping piece. An exhausting deviceis arranged on the other side of a motor. A heat preserving layer is arranged on the external surface of the tank body. A heating wire set is arranged on the internal wall face of the tank body. A limiting rubber block is arranged in a filtering screen. The motor is connected into the tank body through a shaft rod. A window is arranged on one side of the discharging opening. According to the combined type feed storing device which is convenient to move and facilitates material taking, feed in the tank body can be stirred and heated, the internal feed is prevented from being affected with dampand mildewed, the exhausting device facilitates water vapor discharging after the tank body is internally heated and stirred, the interior of the tank body is kept dry, dust in the feed can be collected through the filtering screen, the interior of the device is of an assembling and disassembling structure, the discharging opening is flexible in structure, the feed can be taken conveniently and accurately, and the device is multifunctional.

The invention discloses a product serving as coating or paint, which belongs to the technical field of fine chemical engineering and coating. The manufacturing technology for the conventional coating is complex or the performance cannot reach the performance reached by the product. In order to solve the problems in the background technology, the product serving as the coating or the paint comprises one or more of fluorine resin, silicon resin, fluoro-silicon resin, dissolved or melted fluorine resin, dissolved or melted fluoro-silicon resin, dissolved or melted silicon resin, silicone sealant, polysiloxane and other silane substances; and the product also can comprise one or more of inorganic pigment, organic pigment, filler, pigment, dye, essence, silicon oil, coupling agent, cross linker, vulcanizing agent, curing agent, antistatic agent, dispersant, surfactant and solvent.

The invention discloses a livestock manure dehydration device. The livestock manure dehydration device comprises a support; a feeding mechanism and a dehydration mechanism are arranged on the support; the feeding mechanism comprises a housing provided with a feed inlet; a spiral feeder driven by a motor is arranged in the housing; the dehydration mechanism comprises a sewage accommodation tank; the sewage accommodation tank is provided with a sewage outlet, and is connected with the support via a supporting rod; a centrifugal dehydration barrel driven by a motor is arranged in the sewage accommodation tank via embedding; the surface of the centrifugal dehydration barrel is provided with a plurality of water outlets. In applications, livestock manure is delivered into the centrifugal dehydration barrel by the spiral feeder, and is subjected to primary extruding in pushing process of the spiral feeder so as to realize primary manure water separation; and the centrifugal dehydration barrel is adopted for secondary manure water separation so as to realize complete separation of manure and water. The livestock manure dehydration device is capable of realizing complete dehydration and achieving excellent dehydration effect.

A dust-proof solid waste crushing device is disclosed. The device includes a pedestal, sprayers and knife rollers. Slide rails are fixed to the inside center of the pedestal. A storage box is disposedat upper ends of idler wheels. The inner two sides of the storage box are fixed to limiting blocks. A draining screen is mounted in the limiting blocks. One side surface of the storage box is provided with a hole plug. The upper ends of electric telescopic bars are provided with fixed bases. The inner bottom of a tank body is provided with a waste outlet. The sprayers are disposed on left and right side surfaces of the tank body. Mist spraying heads are fixed to inner wall surfaces of the tank body. The external surfaces of water storage tanks are fixed to fixing racks. According to the device, water is conveyed to the mist spraying heads through water suction pumps and water conveying hoses to perform water spraying to achieve dust fall, thus effectively reducing the concentrations of dust in air and in the tank body. The surface of the tank body is provided with an observation window, and the dust concentration in the tank body can be observed through the observation window so as tocontrol the water mist spraying amount.

The invention discloses a horizontal type square tube cutting machine for steel structure machining. The horizontal type square tube cutting machine comprises a workbench. Lead screw assemblies drivenby drive mechanisms are mounted on the two sides of the top of the workbench through support plates. A square tube locating assembly mounted at one end of the workbench is arranged between the two sets of lead screw assemblies. Sliding frames are in screw joint to the lead screw assemblies. A cutting assembly is mounted on the sliding frames. A square tube clamping assembly is arranged at the ends, away from the square tube locating assembly, of the lead screw assemblies in a sleeving manner. During use, a closed plate is drawn out, a square tube enters from a square tube inlet, so that one end of the square tube is connected to an abutting connecting plate in an abutting manner, the closed plate is inserted, screws are rotated, and the square tube is clamped and fixed through a clampingplate; a motor a drives first lead screws to rotate, then second lead screws are driven to rotate, sector bases move along the first lead screws and the second lead screws, and the positions of the sector bases are adjusted according to needs; and an air cylinder drives a knife holder to move downwards along sliding grooves, so that a disc-shaped cutting knife is in contact with the square tube, and a motor b drives the disc-shaped cutting knife to rotate to cut the square tube.

The invention discloses drainage equipment for grading energy dissipation of debris flow. The drainage equipment comprises a V-shaped drainage channel, wherein energy dissipation basins are arranged on the drainage channel every fixed length; an energy dissipation stepped section is connected between every two adjacent energy dissipation basins; a desilting hydraulic hoisting device is arranged atthe bottom end of each energy dissipation basin; a safety protection net is arranged at the bottom end of the drainage channel; and a plurality of prism-frustum-shaped fixed pillars are arranged on the left sides and the right sides of the drainage channel and the energy dissipation stepped section. According to the drainage equipment for grading energy dissipation of the debris flow, the debrisflow can be smoothly drained through the V-shaped drainage channel; the energy dissipation basins and energy dissipation steps perform grading energy dissipation on the debris flow; the safety protection net is utilized to further filter massive stone, trees and the like, which probably cause risks; and at last, the desilting hydraulic hoisting devices work together to clean the debris flow in theenergy dissipation basins, so that mutli-stage energy dissipation and smooth drainage are achieved, and no silt is left. The drainage equipment is stable in mounting and excellent in energy dissipation and drainage effect and can be used repeatedly.

The invention provides a multifunctional multi-hole drilling machine. The multifunctional multi-hole drilling machine comprises a machine table, wherein a workbench is arranged above the machine table; a transmission box is arranged above the workbench; a left fixing plate and a right fixing plate are arranged on the machine table on the two sides of the workbench correspondingly; one end of a left electric telescopic rod is connected to the end face of the left fixing plate through a shaft, and the other end of the left electric telescopic rod is fixedly connected with a left rotating plate;one end of the right fixing plate is connected with one end of a right electric telescopic rod through a shaft; one end of the right electric telescopic rod is connected with a small motor through a coupler, and the other end of the right electric telescopic rod is fixedly connected with a right rotating plate; a drill bit clamp is arranged at the bottom of the transmission box; the drill bit clamp is in sliding connection with a fixing cylinder; the top of the drill bit clamp is connected with a piston; and the top of the fixing cylinder is connected with an air pump through an air inlet pipe. An existing single-face multi-hole drilling machine can be connected for multi-face operation, and through the arrangement of the machine table, the fixing cylinder, the air pump and an electromagnetic valve, drilling operation of different depths can be carried out on one workpiece at the same time.

The invention discloses an automatic cutting device. Four clamping cylinders are used for clamping raw materials; after the raw materials are cut, the raw materials can directly fall into a blanking box and can be counted; an air blowing mechanism and an air absorbing mechanism are arranged for treating the cutting dust; the problems of the prior art are effectively solved; when long raw materials appear, the long raw materials can be conveyed to a clamping position by a conveying belt and can be cut and blanked, and then the remained raw materials after cutting can be automatically blanked; such a mode can effectively and quickly cut the raw materials; the automatic cutting device is simple in structure, easy in operation and fit for production.

The invention relates to the technical field of a gear measurement center. A non-contact measuring device comprises an optical signal emitter, a measurement platform, a lift device and a base. The lift device is arranged on the base; the lift device is provided with an H-shaped lifting slide block; the optical signal emitter is connected with the lifting slide block through a bolt; the measurement platform is arranged at the front side of the lift device; the measurement platform is provided with a protection frame; the protection frame is fixedly arranged on the measurement platform through bolts; the protection frame is equipped with a fiber measuring plate at the place of a square through hole in the middle of the protection frame; and the protection frame above the fiber measuring plate is provided with a transparent glass plate. The non-contact measuring device can realize geometric parameter measurement of gear contour innovatively by utilizing optical fibers; through non-contact measurement, the measurement result is allowed to be more accurate, and the gear tooling process before conventional contact measurement is saved; and contour point data is obtained directly, and such mode is more convenient than an image processing mode.

The invention relates to a grassland desertification classifying method and application thereof. The grassland desertification classifying method comprises partitioning a grassland, selecting multiplesamples from every partition, monitoring the total coverage of every sample as well as the percentage occupied by the aboveground edible grass yield from the total aboveground grass yield in the summer and the winter of the same year, and removing the partitions, of which the annual changes of the total coverage of more than 90% of the samples are higher than 60% and the average total coverage islower than 10%; when four or more monitored indexes meet the standard of a corresponding level of desertified grassland, determining the grassland to be a desertified grassland of the corresponding level; when five or more monitored indexes fail to meet the standard of a corresponding level of desertified grassland, determining the grassland to be an undesertified grassland. The grassland desertification classifying method and the application thereof enables classification to be more practical and effectively improve the efficiency and effects of subsequent corresponding desertification treatment.

The invention discloses UPS (Uninterrupted Power Supply) equipment with a monitoring function, which comprises a partition plate II arranged in a case, three diversion columns II and a diversion column I form a rectangle, heat absorption strips are arranged between the diversion columns II and between the diversion columns I and the diversion columns II, and cooling liquid is arranged in the heat absorption strips. The heat absorption strips communicate with the second flow guide column, but only the heat absorption strip on one side communicates with the first flow guide column, a main power source is arranged in a rectangle formed by the second flow guide column and the first flow guide column, a top piece is slidably connected between the two limiting plates in a limiting mode, and the end, away from the heat absorption strips, of a first communicating pipe communicates with a liquid bag. A trigger switch is arranged at the position, away from one side of the liquid bag, of the inner wall of the monitoring strip, a first spring capable of resetting the top piece is arranged in the limiting plate, and a supporting device controlled by the trigger switch is further arranged on the machine box. According to the invention, the function of monitoring the power supply can be realized while the heat dissipation function is realized, and the function of automatically replacing the power supply can also be realized.

The invention discloses a trichosanthes kirilowii seed washing machine, which comprises a bracket, wherein the bracket is provided with a concave base, the concave base is internally fixed with a washing box, the washing box is internally equipped with a seed-pulp separating cylinder driven by a driving mechanism, the internal part of the seed-pulp separating cylinder is horizontally equipped witha transverse shaft fixed on the side wall of the washing box, the transverse shaft is wound with a spiral sheet, and the outer surface of the seed-pulp separating cylinder is uniformly provided witha plurality of stirring blades. When the trichosanthes kirilowii seed washing machine is used, trichosanthes kirilowii seeds and pulp are firstly separated by the seed-pulp separating cylinder, and then the separated seeds get into the washing box for washing. The trichosanthes kirilowii seed washing machine is high in working efficiency and good in separating and washing effect.

The invention discloses a T-shaped steel pipe cutting and welding integrated device comprising a support. A transverse clamping assembly is arranged in the center of the support. A longitudinal clamping assembly is arranged on one side of the transverse clamping assembly, is perpendicular to the transverse clamping assembly and is movably installed on the support. An n-shaped installation frame ismovably installed on the support, is driven by a driving mechanism and is movably connected to a rail formed in the support. A cutting assembly is fixedly installed at the bottom of the n-shaped installation frame. A welding assembly fixed to the bottom of the n-shaped installation frame is arranged on one side of the cutting assembly. Through the T-shaped steel pipe cutting and welding integrated device, cutting and welding are completed together, welding procedures are simplified, and work efficiency is high.

The invention discloses an online security assessment method. The method comprises the steps that based on an "Anyi security management platform", the industry category, scale and economic type of a to-be-assessed unit are imported, and correction parameters are given respectively; based on the "Anyi security management platform", historical management levels, education backgrounds, majors, work experience and ages of employees, material characteristics, equipment characteristics and emergency supporting capability of the to-be-assessed unit are imported, and values are given; and based on the"Anyi security management platform", the correction parameters and the given values are weighted, and real-time ranking is performed on the to-be-assessed unit, wherein the "Anyi security managementplatform" is an online security management support system based on security standard elements. Through real-time ranking on the to-be-assessed unit, the current secure degree of the to-be-assessed unit is evaluated on line, it is convenient for the to-be-assessed unit and a security supervision department to effectively perform supervision, it is convenient for a bank, an insurance company, a riskinvestment institution, an investor and employment joining personnel to know the risk of the to-be-assessed unit in real time, and the security production level of the to-be-assessed unit is raised.

The invention discloses a compression moulding device for a molasses-mineral-urea block. The compression moulding device comprises supporting frames, wherein a conveying mechanism driven by electric motors is arranged on the supporting frames; a molasses-mineral-urea block mold is placed on the conveying mechanism; a discharging mechanism and a pressing mechanism which are fixed on the supporting frames are arranged above the conveying mechanism; the pressing mechanism comprises a connecting rod driven by an air cylinder; a pressing block is fixed to the tail end of the connecting rod; mounting plates are arranged on the two sides of the connecting rod; and gripping mechanisms driven by the air cylinder are embedded in the mounting plates. In the use process of the compression moulding device disclosed by the invention, the mold is placed on the conveying mechanism, raw materials are added into the mold through the discharging mechanism and are compressed tightly and subjected to compression moulding by the pressing mechanism, and the compression-moulded molasses-mineral-urea block enters the next processing procedure along with the conveying mechanism. The compression moulding device disclosed by the invention is simple in structure, simple and convenient to operate and high in compression efficiency.

The invention discloses a novel automatic glutinous cake tamping machine. The novel automatic glutinous cake tamping machine comprises a base, wherein a basin body is fixedly arranged on the base; the bottom of the basin body is hollowed out; a movable disk is movably arranged at the bottom of the basin body; a first driving device is arranged below the base and is connected with the lower end of the movable disk; a main rod is connected to the base; a support rod is connected to the main rod; a driving rod is connected to the support rod in a penetrating manner; a second driving device is fixed on the upper end face of the support rod and is connected with the driving rod; a poke head of which the lower end is semispherical is connected to the lower end of the driving rod; the driving rod is perpendicular to the movable disk; the position of the poke head corresponds to that of the movable disk; a pick is arranged on the inner wall of the basin body; one side of the pick is connected with the inner wall of the basin body; the body of the pick is inclined towards the side wall of the basin body; in addition, the inclination direction of the pick is matched with the rotating direction of the basin body. The device has the advantages of reasonable structure and long service life.

The invention discloses a chain board turning machine and relates to the field of conveying equipment. The chain board turning machine comprises an arc-shaped inner side board and an outer side board;an annular conveying chain board is arranged between the inner side board and the outer side board; a plurality of carrier roller devices arranged at intervals are arranged below the conveying chainboard in the conveying direction; and the conveying chain board is internally provided with a plurality of upper guide rails used for supporting and guiding of the upper layer of the conveying chain board and a plurality of lower guide rails used for supporting and guiding of the lower layer of the conveying chain board. The chain board turning machine is characterized in that the back face of theconveying chain board is provided with a plurality of limiting bearings in the conveying direction, and the limiting bearings are attached to the outer side walls of the upper guide rail on the outermost side and the lower guide rail on the outermost side. The limiting bearings are arranged on the back face of the conveying chain board and attached to the outer side walls of the upper guide railon the outermost side and the lower guide rail on the outermost side, so that the stress point of the conveying chain board moves to the outer side from the inner side, continuous stress is achieved,it is ensured that the conveying chain board can be smoothly and stably conveyed, the problem that the inner side end face of the conveying chain board is stressed unevenly and is broken is eliminated, and the service life of the chain board is prolonged.

The invention relates to a novel dish-washing machine which comprises a machine shell. An inner container is arranged in the machine shell, the lower end face of the inner container comprises a filter screen, a blanking port is formed in the filter screen and is lower than the edge of the filter screen, the screen surface of the filter screen obliquely and downwards faces the blanking port, the lower end of the blanking port is connected with a residue channel, and a cutter is arranged in the residue channel and is connected with a first motor. In the dish-washing machine, the residue channel is directly led out of the dish-washing machine, the screen surface of the filter screen obliquely faces the residue channel, residues which cannot pass through the filter screen are poured into the residue channel along the screen surface, the first motor in the residue channel drives the cutter to rotate constantly and cut residues, large residues such as bones are cut into small pieces by the cutter and are not clamped in the channel so as to avoid blockage, all the residues are mixed with sewage to be led out of the dish-washing machine, water subjected to residue filtering treatment can enter a water circulating system to repeatedly flush dishes, blockage is not caused, a washing effect is ensured, and the problems in the background art are solved.

The invention discloses a vermicelli making device. The vermicelli making device comprises a supporting bottom plate, wherein a first inverted L-shaped supporting rod is arranged at the right end of the upper surface of the supporting bottom plate; a raw material extruding box body and a receiving box body are sequentially arranged on the outer wall of the first inverted L-shaped supporting rod; afeeding funnel is arranged at the upper end of the raw material extruding box body; the bottom of the inner wall of the raw material extruding box body is an equal cone, and a plurality of output meshes for discharging vermicelli are formed in the center of the bottom of the inner wall of the raw material extruding box body; a slide for allowing the vermicelli to penetrate out is arranged at thelower end of the receiving box body in a communicating manner; an extruding mechanism capable of extruding the raw material extruding box body is arranged at the upper end of the first inverted L-shaped supporting rod; a centralized rotating mechanism capable of sending out the dropped vermicelli from the slide in a centralized manner is arranged on the receiving box body; a rotary pressing mechanism capable of cutting the vermicelli extruded by the extruding mechanism during rotation and driving the centralized rotating mechanism during pressing is arranged between the receiving box body andthe supporting bottom plate; and a power mechanism capable of driving the extruding mechanism and the rotary pressing mechanism at the same time is arranged on the outer wall of the first inverted L-shaped supporting rod.

The invention discloses a processing device for manufacturing chalks. The processing device comprises a first support frame, and a second support frame is arranged on one side of the first support frame. The processing device for manufacturing the chalks is characterized in that a first conveying mechanism is disposed at the front end of the first support frame, and a plurality of chalk molds aredisposed above the first conveying mechanism; and a chalk manufacturing box for feeding the chalk molds is disposed above the chalk molds; a rotating mechanism capable of driving the chalk manufacturing box to rotate is arranged above the chalk manufacturing box, and a powdery feeding box capable of adding powder to the chalk manufacturing box is connected to one side of the rotating mechanism; and a second conveying mechanism is disposed on one side of the first conveying mechanism, and the second conveying mechanism is provided with a blowing mechanism capable of air drying the chalk molds.According to the processing device for manufacturing the chalks, by arranging the chalk manufacturing box, the rotating mechanism, the powdery feeding box, the first conveying mechanism, the second conveying mechanism and the blowing mechanism, the operation is simple, quick and integrated, the manufacture is convenient, convenience is brought to the people, working time is greatly reduced, and the problems in the background art are solved.

The invention discloses a paper pulp spreading device. The device comprises telescopic support pillars, a water collecting drawer, second slide rails, a leveling device and a paper pulp storage area,wherein a stabilization frame is fixed at the upper ends of the telescopic support pillars, the water collecting drawer is connected with the stabilization frame through a first slide rail, the secondslide rails are fixed on front and back sides of the stabilization frame, the leveling device is connected with the stabilization frame through the second slide rails, clamping parts and scraping heads are fixed in a scraping piece from top to bottom, taking ports are formed in two sides of the paper pulp storage area, the stabilization frame is connected with a spreading frame through a connecting block, and a limiting frame is fixed on the upper end surface of a limiting rod. The paper pulp spreading device can store to-be-spread paper pulp, the leveling device can quickly spread the paperpulp, the operation method is simple and quick, the condition that residual paper pulp cannot be taken out is reduced due to the shape structure of the paper pulp storage area, and raw materials are saved.

The invention belongs to the technical field of hotel access, and discloses an NFC based safe intelligent hotel access control system and method. One end of a door lock hardware control system is connected with an authentication server through network, and the other end of the door lock hardware control system is connected with a mobile phone client through NFC; the authentication server is provided with a user data management module, a door lock data management module and a permission association management module; the mobile phone client is provided with a logon module, a registration module, a door-open module and an authentication module. According to the system, the door lock hardware control system is interacted with the mobile phone client and the authentication server under supportof a safe transmission server to complete normal door opening operation, a user can input a command by utilizing the door-open module of the mobile phone client to control open and close of a door lock, and the door lock hardware control system can be controlled remotely by utilizing network interface connection equipment. The system has a reasonable structure, and the safety of a hotel can be effectively improved.

The invention discloses a checking fixture for detecting the machining dimension of a gear. The checking fixture comprises a cylindrical housing with a closed bottom. The inner wall of the cylindrical housing is provided with a groove engaged with the gear. The bottom of the cylindrical housing is provided with a cylindrical protrusion matching a gear shaft hole. Both sides of the cylindrical housing are hinged to a measuring device for measuring the depth of gear teeth. The measuring device comprises an L-shaped base and a movable plate connected to the L-shaped base. The L-shaped base is provided with a chute. When the machining dimension of the gear is detected, the gear is placed in the cylindrical housing. If the gear is engaged with the groove and is flush with the surface of the cylindrical housing, the shaft hole internal diameter, the external diameter, the thickness and inter-gear distance of the gear satisfy requirement. The movable plate of the measuring device is adjusted so as to be tightly clamped to the gear, thus, the depth of gear teeth can be known through scales. The checking fixture can easily and quickly detect the machining dimension of the gear, is simple in structure and convenient in operation.

The invention discloses a dust removing device for the outer surface of a large-diameter steel pipe. The dust removing device comprises a worktable with supporting feet, a steel pipe fixing assembly fixed onto the worktable and driven by a driving assembly is arranged at the position, in the center of the worktable, of the upper part of the worktable, a dust removing assembly fixed onto the worktable is arranged above one side of the steel pipe fixing assembly, and a feeding assembly slidably connected to the worktable is arranged on the other side of the steel pipe fixing assembly. During using of the dust removing device, the steel pipe is placed in arc-shaped clamping grooves in telescopic plates, an air cylinder b drives a connecting plate to drive the telescopic plates to move to theposition under the steel pipe fixing assembly along sliding grooves b, the telescopic plates rise to enable one end of the steel pipe to be connected to the exterior of one of inserting-connecting rollers in a sleeving mode, an air cylinder a drives a movable plate to move along a sliding groove a, thus the other inserting-connecting roller is inserted into the other end of the steel pipe to fixedly clamp the steel pipe, a motor drives a gear to drive a gear ring to rotate, thus the steel pipe is driven to rotate, and the surface of the steel pipe makes contact with a dust removing sand rollerto generate friction for dust removing.

The invention discloses an indoor positioning personnel gait recognition method based on an MEMS inertial sensor. In indoor positioning, accurate gait recognition can provide prior information for anattitude estimation algorithm, so that the positioning precision is improved. Acceleration and angular velocity of a testee under five gaits of walking, running, standing, going upstairs and going downstairs are collected. Secondly, difference filling, smooth filtering and other preprocessing are carried out on the collected data. Thirdly, feature construction is carried out, and the difference offeatures is increased through windowing, fast Fourier transform and a principal component analysis method. And finally, model training is conducted by using a random forest algorithm. Experimental results show that the model trained by adopting the random forest algorithm is high in classification precision because of other classification algorithms such as a support vector machine and a gradientboosting tree. And the average classification precision of the five states is 98.2%.

The invention discloses a water drinking device for a white goose. The water drinking device comprises a drinking trough, wherein a partition plate is arranged in the drinking trough and is of an L shape; the water trough is divided into a front water trough and a rear water trough by the partition plate; a water outlet is arranged on the end surface of the bottom part of the partition plate and connected with a water outlet electromagnetic valve; a water inlet is arranged on the end surface of the partition plate and is perpendicular to the bottom part of the partition plate; the water inletis connected with a water inlet electromagnetic valve; a filter screen is arranged in the rear water trough; a sealing cover is arranged at the top part of the rear water trough; an upper water inletis arranged on the sealing cover which is slidably connected with a front sealing cover; an electric heating wire is arranged on the inner wall of the rear water trough; a temperature sensor is arranged at one side of the electric heating wire; and a rear water outlet is arranged on the end surface of the rear water trough and connected with a rear electromagnetic valve. According to the invention, through arrangement of the partition plate and the filter screen, drinking water can be separated and automatically filtered; meanwhile, through the electric heating wire, the drinking water can beheated and subjected to heat preservation, so the problems in the background technology are effectively solved.