445results about How to "Increase speed" patented technology

An edge guide is provided. A structure includes curved surface over which a print media can travel. The print media includes a first edge and a second edge that is opposite the first edge. A first media guide is contactable with the first edge of the print media. A second media guide is contactable with the second edge of the print media. The second media guide is spaced apart from the first media guide. A relative spacing between the second media guide and the first media guide is adjustable such that a distance between the first media guide and the second media guide is variable. The second media guide includes a mechanism that applies a nesting force to the second edge of the print media to cause the first edge of the print media to move toward and contact the first media guide.

The invention relates to the technical field of drying, and discloses a solar heat collection tube heating and drying device and a tube row manufacturing method thereof.The solar heat collection tube heating and drying device comprises a first rack, and a first heat collection module is arranged on an inclined mounting platform formed by a first-stage step and a second-stage step of the first rack; a drying cavity defined by first steel plates is installed on the outer wall of the three-stage step of the first rack, and a first partition plate is arranged in the drying cavity. A second partition is arranged on the top surface of the first partition, a third partition is arranged on the side wall of the second partition, and an air delivery pipe is arranged between the third partition and the first partition; an air inlet shutter is mounted on the first steel plate, a fan opposite to the air inlet shutter is mounted on the second partition plate, and an exhaust shutter is mounted on the first steel plate; a supporting beam located above the third partition plate is arranged on the first rack, a footstand is arranged on the supporting beam, and a drying bin used for drying corn is placed on the footstand; according to the device, the solar energy utilization rate is increased through the heat collection structure, heat collection and drying chambers are reasonably partitioned, the airflow circulation path is clear, and stable drying of corn is achieved.

The invention discloses a triazine desulfurizer and a preparation method thereof, and belongs to the technical field of gas purification. The triazine desulfurizer is mainly prepared from the following raw materials in percentage by weight: 20 to 50 weight percent of triazine derivative, 10 to 15 weight percent of sterically hindered amine, 3 to 7 weight percent of stabilizer, 1 to 3 weight percent of synergist, 0.5 to 1.5 weight percent of penetrant, 0.5 to 1.5 weight percent of inhibitor, 1 to 2 weight percent of additive and the balance of water, the preparation method of the triazine derivative comprises the following steps: adding 2-(diphenylphosphino) ethylamine into a toluene solvent, adding a paraformaldehyde aqueous solution in batches under a stirring condition, and reacting for 2-8 hours to obtain the triazine derivative. According to the triazine desulfurizer and the preparation method thereof provided by the invention, the triazine derivative and the sterically hindered amine are taken as a host, and the stabilizer, the synergist, the penetrant, the inhibitor and the assistant are compounded, so that the scaling trend of the triazine desulfurizer in an oil and gas well can be slowed down, the dissolution rate of hydrogen sulfide and the mass transfer rate in a solution are increased, and the desulfurization reaction is promoted; the desulfurization effect and the desulfurization rate are improved, and meanwhile, a very good scale inhibition effect is also achieved.

The invention discloses a sectional type drainage combined pile and a consolidation calculation method, and relates to the technical field of soft soil foundation treatment.The sectional type drainage combined pile comprises a lower pile body, a pile core, a permeable shell and a plurality of pore water pressure monitoring components, the lower portion of the pile core is fixedly arranged in the lower pile body in a sleeved mode, and the permeable shell is fixedly arranged outside the upper portion of the pile core in a sleeved mode; the pile core and the lower pile body are both of a rigid structure and are waterproof, a plurality of pore water pressure monitoring components are sequentially embedded in one side of the water-permeable shell from top to bottom, and a plurality of pore water pressure monitoring components are sequentially embedded in one side of the lower pile body from top to bottom. According to the sectional type drainage combined pile, the foundation bearing capacity and the consolidation rate are improved. Meanwhile, a consolidation calculation method considering radial and vertical seepage of the sectional type drainage composite pile is established, the consolidation calculation method is suitable for consolidation analysis of the sectional type drainage composite pile, and an accurate theoretical basis is provided for engineering design.

The invention belongs to the technical field of photocatalysts, and particularly discloses a CoMo6 / Fe3O4 (at) ZnO composite material and a preparation method and application thereof.The photocatalytic mechanism of the prepared CoMo6 / Fe3O4 (at) ZnO composite material is as follows: after the composite material CoMo6 / Fe3O4 (at) CeO2 is excited by light, photo-induced electrons on CoMo6 are transferred to the surface of Fe3O4 (at) ZnO, meanwhile, photo-induced holes absorb an electron donor H2O on the surface of POM polyanions to react to generate. OH, and the CoMo6 / Fe3O4 (at) ZnO composite material is obtained. The. OH free radical with strong oxidation capability oxidizes eosin B to generate oxidation products such as CO2 and the like. In the experiment, a small amount of electrons absorb an electron acceptor O2 and reduce the electron acceptor O2 to generate. O2 <->, and the two free radicals act at the same time to promote the photocatalytic reaction. When a magnetic field is added outside, the oxidation capacity and rate of. OH are also accelerated, so that the degradation rate of eosin B is improved; the highest degradation rate on an eosin B dye can reach 92.21%; after an external magnetic field is applied, the degradation rate is obviously accelerated, and the reaction is almost complete 40 minutes after illumination is started.

A multi-wire cutting machine achieving feeding action through movement of a cutting wire net is provided with a base, a machine frame, a workbench, a cutting feeding system, a wiring system and a control system, the base is horizontally arranged, the machine frame and the workbench are installed on the base, the cutting feeding system and the machine frame are assembled, and the wiring system is arranged on the base and the machine frame; the cutting feeding system comprises a lifting seat, a lifting motor and a lead screw nut transmission mechanism, the lifting motor is installed on the top of the rack, and the lifting seat is driven by the lead screw nut transmission mechanism to move up and down; the routing system comprises a cutting wire, a pay-off mechanism, a guide wheel, a tensioning mechanism, a grooved wheel and a take-up mechanism, the cutting wire bypasses the guide wheel and the tensioning mechanism which are arranged on the rack and is wound on the grooved wheel to form a cutting wire net, and the grooved wheel is mounted on the lifting seat. According to the multi-wire cutting device, cutting operation of large graphite material workpieces is achieved, and the purposes of simplifying the structure of multi-wire cutting equipment and improving the machining quality of the workpieces are achieved.

The invention provides an anti-blocking control method and system for a spiral conveying device and the spiral conveying device, and belongs to the technical field of material conveying equipment. The method comprises the following steps: acquiring real-time current data of a spiral motor of the spiral conveying device; based on the quantitative relation between the preset filling rate and the current value of the spiral motor, the real-time filling rate of the materials in the spiral conveying device is determined according to the real-time current data; comparing the real-time filling rate with a preset anti-blocking threshold value; under the condition that the real-time filling rate is larger than or equal to a preset anti-blocking threshold value, it is judged that the blocking risk exists, speed increasing operation is executed, and the speed increasing operation comprises the step that an instruction is sent to the variable frequency driving module to increase the rotating speed of the spiral motor. And the active anti-blocking effect of the spiral conveying device is achieved, the risk of manual disassembly and blockage clearing is reduced, and a guarantee is provided for continuous operation of the whole system.

The utility model discloses a windmill cylinder wall cleaning rolling brush which comprises a rolling brush shell and a supporting connecting frame fixed to the top of the rolling brush shell through bolts, and a servo motor serving as driving force is arranged on the side wall of the rolling brush shell. The output end of the servo motor extends into the reduction gear set, and the output end of the reduction gear set is connected with the shaft end of the connecting rod. A rolling brush body is arranged at the outer end of the rotating rod, an adjusting mechanism is arranged at the other end of the rolling brush body, the rolling brush body slides on the outer side of the rotating rod through movement of the adjusting mechanism, and cleaning treatment at different positions is achieved. According to the windmill cylinder wall cleaning rolling brush, the adjusting mechanism is arranged, through the arrangement of the adjusting mechanism, the rolling brush body can be moved in the rolling brush shell, then the rolling brush body can act on different positions of the outer wall of a windmill tower, and then cleaning treatment on the different positions can be achieved.

The embodiment of the invention discloses a cigarette finished product and cut tobacco association method, device and equipment and a storage medium, and the method comprises the steps: determining a first association relationship between a target batch of cut tobacco and the yield of a cigarette making and plug assembling machine based on a first association formula when the cigarette cut tobacco feeding weight reaches a preset association condition; wherein the first correlation formula is used for representing the corresponding relation between the cigarette shred feeding weight and the yield of the cigarette making and plug assembling machine; determining a second association relationship between the cigarette making and plug assembling machine yield and the target finished product small box based on a second association formula; wherein the second correlation formula is used for representing the corresponding relation between the cigarette making and plug assembling machine yield and the finished product small box number; and based on the first association relationship and the second association relationship, determining a target association relationship between the target batch of tobacco shreds and the target finished product small box. According to the technical scheme, the incidence relation between the cigarette cut tobacco feeding weight and the number of the finished small boxes can be constructed based on the yield of the cigarette making and plug assembling machine as an intermediate parameter, and the accuracy and speed of quality tracing are improved.

The utility model relates to the technical field of grain conveying, disclose a raw material conveying device for grain processing, including frame and conveyer belt, both sides of frame are longitudinally rotatable installation has the guide roller, the outer ring of both sides guide roller drive sleeve is placed, the frame surface of one side guide roller front end is installed with the step motor of guide roller drive connection, the inside of the frame below the upper layer conveyer belt is longitudinally provided with the supporting roller, the inside surface of the frame of supporting roller both ends is all set up with the sliding slot. The utility model technical scheme is provided with supporting roller in the bottom of conveyer belt and plays the supporting effect to conveyer belt, the pressure that conveyer belt acts to supporting roller can be detected by pressure sensor, the pressure size is also different when conveying the grain amount is different, and then judge the amount of conveying grain, make the conveyer belt speed increase when the conveying capacity is big, conversely make the conveyer belt speed reduce or stall, and the conveying speed requirement when the grain conveying capacity is big and the power saving demand when the grain conveying capacity is small are taken into account.

The utility model relates to saponification device technical field, and disclose a kind of quick saponification device for laundry soap production, including shell assembly and the mixing assembly and stirring subassembly of being installed in shell assembly, and there is circulating assembly and stirring subassembly on broken subassembly, wherein the internal fatty acid is made to carry out sufficient saponification reaction by the internal circulation mixing design of mixing assembly, effectively improve saponification rate and yield, so that it can reduce the fatty acid content on initial material with small amplitude, while the design of circulating assembly cooperation broken subassembly can quickly and effectively break the internal builder and filler, so that it can improve the specific gravity of builder and filler while ensuring that soap body surface does not crack, to reach the purpose of reducing production cost, improving efficiency.

The utility model discloses a gravel vibration screen convenient to loading, including support, hopper, fixed frame, is installed with belt conveyor and vibration screen on the support, and vibration screen is located the above belt conveyor, and hopper is installed to the support upper end, and hopper has inclined surface part, and the side of hopper is connected with feeder through fixed plate, and feeder is located the below hopper export, and feeder is vibration screen conveying gravel, and fixed frame is connected in the side of hopper, and a plurality of staggered blocking columns are inserted in the left and right side of fixed frame, and two electric cylinders are installed on the upper surface of fixed frame, and electric cylinder is connected with corresponding blocking column transmission, can store gravel through hopper, when vibration screen temporary cleaning maintenance, gravel can continue to send to hopper, will not cause production line to break material, reduces the switching step of conveyer belt, can quick recovery gravel's continuous processing, and feeder sends gravel in hopper to vibration screen, can stably control the feeding amount of vibration screen.

The application belongs to the field of membrane material preparation, and discloses a preparation method of a natural gas dehydration membrane, the natural gas dehydration membrane and application thereof. The preparation method comprises the following steps: S1, preparing a mixed solution, wherein the mixed solution comprises polyetherimide, water wheel phenol and a solvent; S2, coating the mixed solution obtained in step S1 into a film; S3, placing the film obtained in step S2 on a substrate or a cold table at-10 to-2 DEG C for 1 to 10 min; S4, placing the film obtained in step S3 at a temperature of 30 to 45 DEG C for 2 to 5 min; S5, placing the film obtained in step S4 into a coagulation solution containing 4-methyl catechol for solidification; and S6, placing the film obtained in step S5 into a pyrrole aqueous solution for immersion, thereby obtaining the natural gas dehydration membrane. The natural gas dehydration membrane prepared by the application has high water permeability and a H2O / CH4 separation coefficient, and can be used in the dehydration process before natural gas transportation.

The utility model discloses a high definition interactive fusion type set top box, it includes PON module, DVB module, optical communication module, first interface module, network state indicating lamp, first memory, second interface module, power indicating lamp and second memory, PON module and DVB module pass through internal PHY communication circuit communication, integration in a equipment, optical communication module, first interface module, network state indicating lamp and first memory all are connected to PON module, and second interface module, power indicating lamp and second memory all are connected to DVB module, PON module adopts the chip of RTL9603C type and realizes, DVB module adopts the chip of MC2416 type and realizes, the high definition interactive fusion type set top box of the utility model, through with PON module and DVB module integration in a equipment, and together through internal PHY layer connection, has improved operating speed, has improved user experience and reduced user cost.

The utility model relates to a kind of connecting mechanism and equipment pedestal, belong to laser direct imaging equipment technical field.Connecting mechanism includes positioning and guiding component, is set in the splicing of two adjacent pedestals, for the directional splicing of two adjacent pedestals together;Positioning and guiding component includes the first guide plate and second guide plate respectively set in two adjacent pedestals;First guide plate and second guide plate can be slid along splicing direction relative to the pedestal where it is;One of first guide plate and second guide plate is provided with convex part, and the other is provided with recess part;Convex part and recess part are used to guide and position two pedestals in splicing process;Locking assembly is used to fix two adjacent pedestals.By the guiding and positioning effect of first guide plate and second guide plate and the fixing effect of locking assembly, the accuracy and stability of splicing can be ensured while ensuring the rapid splicing of pedestal.

The application relates to the technical field of intelligent household appliances, and discloses a method for heat dissipation of an air conditioner, which comprises the following steps: determining whether freezing phenomenon exists at a drain outlet according to the change condition of the light reflectivity at the drain outlet; in the case that freezing phenomenon exists, starting a semiconductor heat dissipation fin and increasing the rotating speed of a circulating pump body; and in the case that freezing phenomenon does not exist, adjusting the rotating speed of the circulating pump body according to the temperature of an aluminum base plate. Heat is efficiently guided to the outdoor unit chassis through a heat conduction medium in a heat conduction pipeline to perform ice removal or defrosting, the clogging problem caused by the icing or frosting of the drain outlet is avoided, the utilization rate of energy is improved, the flow rate of the heat conduction medium in the heat conduction pipeline is adjusted based on the overall temperature of the heating component, the heat conduction efficiency of the heat conduction pipeline is matched with the overall temperature of the heating component, and the electric control box of the air conditioner can be timely heat dissipated. The application further discloses a device for heat dissipation of an air conditioner, an air conditioner and a storage medium.

The utility model relates to the technical field of flue gas desulfurization, in particular to a coke oven flue gas desulfurization and regeneration integrated tower which comprises a bottom plate, the top of the bottom plate is fixedly connected with a control plate and a desulfurization cylinder respectively, a first filter screen is fixedly connected in the desulfurization cylinder, the surface of the first filter screen is fixedly connected with a magnetic plate, and a second filter screen is arranged at the top of the first filter screen. The bottom of the second filter screen is fixedly connected with an iron plate, the iron plate is in magnetic attraction connection with the magnetic plate, an insertion groove is formed in the second filter screen, a third filter screen is arranged at the top of the second filter screen, the bottom of the third filter screen is fixedly connected with an insertion rod, and the insertion rod extends into the insertion groove and is in insertion connection with the insertion groove; a driving motor is mounted at the top of the desulfurization cylinder; the stirring rod can be driven to rotate under the power action of the driving motor, and the catalyst is in full contact with the flue gas through the rotation of the stirring rod, so that the flue gas desulfurization effect and the flue gas desulfurization speed can be improved, and the practicability of the whole device is higher.

The invention provides a gas diffusion electrode device for electrochemical lithium-mediated ammonia synthesis and an electrochemical ammonia synthesis method, and belongs to the technical field of electrochemical ammonia synthesis. The gas diffusion electrode device comprises a nitrogen runner, a sealing gasket, a working electrode, a catholyte chamber, a diaphragm, an anolyte chamber, an anode catalyst, a hydrogen runner and an electrolyte, the electrolyte comprises a lithium salt, an organic solvent, a proton shuttling agent and an interface additive. According to the invention, high nitrogen transmission is realized by adopting a circulating type gas diffusion electrode device, and a three-phase interface chemical environment of gas, electrolyte and the gas diffusion electrode is regulated and controlled by an interface additive, so that the ammonia production rate and the Faraday efficiency are remarkably improved, and continuous and efficient nitrogen reduction reaction is realized at normal temperature and normal pressure.

The application discloses an electrolytic catalytic biological denitrification reactor and relates to the technical field of sewage treatment. The electrolytic catalytic biological denitrification reactor comprises a reactor body, an external power supply connected to the reactor body, an anaerobic reaction chamber and an aerobic reaction chamber separated by a first partition wall in the inner cavity of the reactor body, and a first drainage hole formed in the first partition wall. A water inlet is formed in the outer side wall of the anaerobic reaction chamber. A unit cathode and a water flow propeller are fixed in the anaerobic reaction chamber. A water outlet is formed in the outer side wall of the aerobic reaction chamber. A unit anode and a water flow propeller are fixed in the aerobic reaction chamber. The unit anode and the unit cathode are connected in parallel through wires, and the wires are connected to the external power supply. The electrolytic catalytic biological denitrification reactor can effectively improve the biological denitrification efficiency, reduce the pollution to the environment, has strong adaptability to water quality changes, has good sludge settling performance, is easy to maintain, manage and operate, has high denitrification efficiency, and has small land occupation.

The utility model discloses a filter device of circulating backwash, including filter casing, install a set of bearing seat in the inner chamber of filter casing upper end, bearing seat is sealed with a set of filter core rotation connection, and the rotation action can be realized to filter core through drive assembly, and cooperate transmission assembly and drive cleaning brush rotation, the utility model centrifugal force throws out high -speed water flow, and the impact force of impurity is greatly promoted, and the mechanical cleaning of cooperation cleaning brush, under double effect, can more efficiently remove strong viscosity, firmly attached contaminant and deep pore small impurity, and backwash efficiency improves obviously, and high -efficient backwash reduces backwash frequency and time, and water flow energy consumption is reduced, simultaneously, the filter core is because clean thoroughly, and the service life is extended, and the frequency of replacement is reduced, and the overall operation cost is reduced.

The utility model relates to a multifunctional steam milk bar, including the tubular body, one end connects the steam source, and the other end sets up the blast hole, sleeve, sleeve sets up on the tubular body, the sleeve and the tubular body form the air cavity between, and the sleeve sets up the inflation hole intercommunication air cavity on, around the inflation hole, the surface of sleeve sets up the adjusting cylinder, adjusting sleeve, set up in the adjusting cylinder, adjusting sleeve sets up the air inlet groove A on, the air inlet groove A intercommunication inflation hole, adjusting head, extends into the adjusting cylinder, adjusting head sets up the air inlet groove B on, wherein, the sleeve opening sets up close to the blast hole one end, and the other end of sleeve and tubular body between seal connection, around the axis of rotation adjusting head adjusting head, the air inlet groove A and the air inlet groove B intercommunication or break off, the utility model discloses through the adjusting head on the sleeve, can intercommunication or break off the air inlet groove A and the air inlet groove B, realize the quick switching of multifunctional steam milk bar's work mode, and the switching mode is simple and quick, and the use efficiency of multifunctional steam milk bar is improved.

The invention discloses a polyamine carbon dot as well as a preparation method and application thereof in improvement of corn resistance, and belongs to the technical field of nano agricultural regulation and control. The polyamine carbon dots are subjected to hydrothermal synthesis, the size of the PEICDs is 2.3 nm, the quantum yield of the carbon dots can be increased, carbon dioxide in the atmosphere can be captured and converted into bicarbonate radicals, and it is verified through in-vitro experiments that the PEICDs can improve the carbon dioxide conversion product 3-phosphoglycerate in vitro; under the stress of drought and salt, the polyethyleneimine functionalized carbon dot solution is applied to the leaf surfaces of the crops, so that the growth and development of the crops can be improved by remarkably improving the net photosynthetic rate and the intercellular carbon dioxide concentration, and the adaptability of the crops to the environment is further improved.

This invention belongs to the field of organic agriculture, specifically a biological agent for promoting wheat photosynthesis and its preparation method. Addressing the problems of existing biological agents having relatively simple components, low absorption and utilization efficiency by wheat ears, and a tendency to reduce nitrate reductase activity, nitrogen utilization, and chlorophyll content in wheat leaves, the following solution is proposed: the biological agent comprises the following raw materials in parts by weight: 50-65 parts of yield-enhancing amine, 15-20 parts of choline chloride, 10-15 parts of diethylaminoethanol hexanoate, 5-10 parts of brassinolide, 3-5 parts of p-chlorophenoxyacetic acid, 1-3 parts of calcium diphenylureasulfonate, 2-5 parts of trace agents, and 2-4 parts of ethylene glycol styraldehyde. The biological agent of this invention can promote better photosynthesis in wheat, enhance nitrate reductase activity, and improve nitrogen utilization.

The invention consists of a drying tunnel for fruits or vegetables which comprises an impulsion and heating chamber (2) and a plenum (3), configured for receiving an outgoing hot air (6) generated in the impulsion and heating chamber (2) by the generator, so that the plenum (3) comprises openings (10) arranged in a staggered pattern, located on the lower surface (1) thereof, with an opening density between 150 to 300 openings (10) per square metre, wherein said openings (10) are configured for expelling a distributed hot air (4) from inside the plenum (3) in a perpendicular way towards a conveyor system (9), configured for moving fruits and vegetables to be dried.

This invention relates to the field of burner technology, specifically a burner for a gas-fired wall-hung boiler, comprising a rear mounting bracket and a venturi tube mounted on its front side. The front side of the venturi tube is connected to the front mounting bracket, and a temporary storage frame is fixed to the front side of the front mounting bracket. A burner head of the venturi tube is mounted above the venturi tube. In this burner, when the rotating rod drives the convex column to rotate, the convex column intermittently applies a downward thrust to the convex block. This causes the convex block to drive the piston assembly to intermittently reciprocate within the gas storage pipe. Therefore, the piston assembly reciprocates to draw gas and air from the main pipe into the gas storage pipe and then discharges the gas and air from the gas storage pipe. This repeated operation allows for thorough pre-mixing of the pre-mixed gas and air, improving the completeness of subsequent combustion, reducing exhaust emissions, and lowering gas consumption, thus achieving excellent energy-saving and gas-saving effects.

The utility model relates to the field of cooking utensils, in particular to an air fryer and cooking equipment.The air fryer is provided with a furnace cavity, a fan assembly and a hot air fan blade assembly, the fan assembly and the hot air fan blade assembly are located in the furnace cavity, a supporting piece for supporting food is detachably installed in the furnace cavity, the hot air fan blade assembly comprises a circular base plate and fan blades, and the base plate is provided with an installation face; the fan blades are connected to the mounting face and provided with windward faces and leeward faces, the included angle between the windward faces and the outer tangent plane of the base plate is 90 degrees + / -20 degrees, and the outer tangent plane passes through the windward faces or the intersecting line between the extending face of the windward faces and the peripheral face of the base plate. When the hot air fan blade assembly rotates, the effective action area, used for pushing hot air flow in the rotating direction to achieve hot air flow circulation, on the fan blades is close to the area of the windward side, the hot air flow stirring efficiency of the fan blades can be improved while the material consumption of the fan blades can be reduced, and the hot air circulation uniformity in a furnace cavity is improved; therefore, the cooking effect is improved.

The invention discloses an ultrahigh-strength Al-Mg-Si-Cu alloy and a thermomechanical treatment method thereof. The alloy comprises the following components in percentage by mass: 1.2 to 2.0 percent of Mg, 1.0 to 1.5 percent of Si, 0.5 to 1.5 percent of Cu, 0.15 to 0.5 percent of Zn, 0.2 to 0.4 percent of Mn, 0.05 to 0.1 percent of Ti, 0 to 0.5 percent of Fe and the balance of Al and inevitable impurities. The density of a strengthening phase in the structure of the alloy is greater than or equal to 7.18 * 10 < 22 > / m < 3 >; the specific heat treatment comprises the following steps of (1) solid solution quenching, (2) under-aging treatment, (3) pre-deformation and (4) aging treatment, and based on the composite strengthening effect of precipitation strengthening and dislocation strengthening, the aluminum alloy plate obtains higher strength on the premise that good shaping is guaranteed; meanwhile, the time of peak aging heat treatment is shortened, and the production efficiency is improved.

This invention belongs to the field of control technology for cooking appliances, and discloses a control method and a cooking appliance. The cooking appliance includes a defrosting auxiliary device, which includes a heating device and a humidifying device. The control method includes: after the food is placed in the working chamber and a variable-temperature defrosting command is received, controlling the heating device and the humidifying device of the defrosting auxiliary device to work, so that in the multiple defrosting stages performed sequentially by the cooking appliance, the temperature of the earlier defrosting stage is higher than that of the later defrosting stage, and the duration of the earlier defrosting stage is greater than or equal to that of the later defrosting stage. Through the above method, the food is not overcooked by the high-temperature environment during the defrosting process, ensuring the quality and speed of defrosting. The duration of the earlier defrosting stage is greater than or equal to that of the later defrosting stage, so that the time spent on high-temperature defrosting is greater than or equal to that of low-temperature defrosting, resulting in higher defrosting efficiency.

This utility model relates to the field of conductive slip ring technology and discloses a conductive slip ring, including a slip ring shell, a fixed shaft inserted into the bottom of the slip ring shell, an inner oil seal snapped into the inner top of the fixed shaft, a sealing ring assembly snapped into the inner top of the inner oil seal, a wear-resistant ring covering the top of the sealing ring assembly, and a rotating shaft inserted into the inner top of the fixed shaft. This utility model, through an optimized and stable structure, achieves this by snapping the sealing ring assembly into the top of the inner oil seal, then snapping the wear-resistant ring into the sealing ring assembly inside the top of the inner oil seal, and finally snapping the inner oil seal, along with the sealing ring assembly and wear-resistant ring, into the inside of the fixed shaft. The rotating shaft is then inserted into the slip ring shell, passes through the inner oil seal at the top of the fixed shaft, and snaps into the rotating shaft. The sealing ring assembly and wear-resistant ring at the top of the inner oil seal achieve a balance between low torque and high speed, thus realizing optimized stability.