89results about How to "Fast reflow" patented technology

The invention provides a powerless type air heat recollection device which is characterized in that the device at leased includes a fresh air channel used for bringing in fresh air and an air exhaustion channel to exhaust the indoor air, wherein, the two ends of the fresh air channel are respectively provided with an air inlet A communicated with the outside and an air outlet B communicated with the inside. The two ends of the air exhaustion channel are respectively provided with an air outlet A1 communicated with the outside and an air inlet B1 communicated with the inside; at least either of the air inlet A or air outlet A1 is provided with an air cap which includes a wind wheel and shaft, which are driven by the external wind power, and a fan which is driven by the shaft and can form a fixed air intake or exhaustion flow in the fresh air channel or the air exhaustion channel under the drive of the wind cap; the device also at least includes a heat exchanger which runs through the fresh air channel and the air exhaustion channel.

The invention relates to a clean rice cooker. The clean rice cooker comprises a cooker body, an inner container and a cooker cover, wherein a heating body is mounted on the inner bottom surface of the cooker body; the cooker cover is pivoted to the edge of the cooker body, air exhaust valves are arranged on the upper surface of the cooker cover, and wind pressure holes are formed in the side walls of the air exhaust valves; a defoaming screen is mounted on the lower surface of the cooker cover, and is composed of hollow pipes communicated with one another, and defoaming needle tubes are fixed at the nodes of the hollow pipes; ring-shaped air guide rings surround the edge of the defoaming screen; backflow holes are formed in the lower parts of the air guide rings; the air inlet ends of the air guide rings are communicated with the hollow pipes, and the air exhaust ends of the air guide rings are communicated with the wind pressure holes; a filter screen is further mounted below the defoaming screen. The clean rice cooker is novel in structure and simple in assemblies, can effectively prevent the overflow of air bubbles, is safe and stable in use process, and has relatively long service life.

The invention discloses a high-power LED radiating lamp and a preparation method for a non-uniform wettability patterned surface. The LED radiating lamp comprises a gravity heat pipe radiator, an LED circuit substrate and an LED light source module; the gravity heat pipe radiator comprises an upper condensation section and a lower evaporation section condensation section; the condensation section comprises a heat pipe, trapezoidal fins and a cover plate; the inner side of the heat pipe and the bottom surface of the cover plate are subjected to super-hydrophobic treatment and have the super-hydrophobic properties; the evaporation section is a cylindrical cavity, a base plate of the cavity is connected to the LED circuit substrate through bolts; the cavity is internally filled with heat exchange working mediums; the surface of the base plate of the cavity is subjected to non-uniform wettability treatment and is divided into a super-hydrophobic region and a super-hydrophilic region; and the super-hydrophobic area is radialized. The LED radiating lamp has teh advantages of being simple in structure, high in response speed and high in radiating capacity, the high-power LED lamp can be effectively maintained to operate at the normal temperature, the luminous efficiency can be enhanced, and the service life can be prolonged.

The invention discloses anti-blocking environment-friendly printing and dyeing equipment. The equipment comprises a machine box body, a printing and dyeing bin is fixed to one side of the upper surface of the machine box body, and a collecting tank is arranged on the top in the machine box body; one side of the upper surface of the printing and dyeing bin is provided with an induced draft fan, andthe side, close to the induced draft fan, of the upper surface of the printing and dyeing bin is fixedly provided with a filtering box through an F-shaped support; the air inlet end of the induced draft fan is connected with the printing and dyeing bin through a pipeline, and an air delivery pipe is connected between the air outlet end of the induced draft fan and the filtering box; a plurality of flow guiding convex blocks are arranged on the two sides of the inner wall of the collecting tank at equal intervals. The induced draft fan and the filtering box are arranged, so that air purification is achieved, harmful gas is prevented from being discharged and polluting the environment, and a health and comfortable working environment is formed; the flow guiding convex blocks are arranged, so that the flow state and the flow speed of a dye are changed, flowing of the dye is promoted, the dye is prevented from being condensed, rapid backflow of the dye is achieved, and printing and dyeingof the equipment are more efficient.

The invention belongs to the technical field of heat transfer, and particularly relates to a composite liquid-cooling heat pipe radiator. The composite liquid-cooling heat pipe radiator comprises a flat plate heat pipe, wherein heat generated by a heating component is transferred to a bottom plate of the flat plate heat pipe, a top plate of the flat plate heat pipe is provided with protrusions perpendicular to the bottom plate of the flat plate heat pipe, the protrusions form a tubular heat pipe, and an inner cavity of the flat plate heat pipe is communicated with an inner cavity of the tubular heat pipe. The composite liquid-cooling heat pipe radiator further comprises a shell. The flat plate heat pipe and the tubular heat pipe are both located in the shell, and the bottom plate of the flat heat pipe is attached to the bottom surface of the shell in a sealed mode; an area defined by the outer surface of the flat plate heat pipe, the outer surface of the tubular heat pipe and the innerwall of the shell forms a cooling liquid channel; and the shell is provided with a cooling liquid inlet and a cooling liquid outlet. According to the radiator, the tubular heat pipe is combined withthe flat plate heat pipe, so that the radiator can be attached to a flat surface of the heating component and has a good radiating effect; and meanwhile, heat released by a refrigerant of a condensation section is taken away through liquid cooling, and compared with air convection heat dissipation, the heat exchange capacity of the composite heat pipe with the outside is improved.

The invention discloses a steering damper. The steering damper comprises a working cylinder and a piston rod, wherein an inner chamber of the working cylinder is filled with oil; the piston rod moves in the axial direction of the working cylinder; the outer end of the piston rod extends out of one end of the working cylinder; oil seal covers are mounted at the two ends of the working cylinder; an oil storage cylinder is arranged on the outer side wall of the working cylinder and communicated with the working cylinder; a resetting valve assembly is mounted at the end part, positioned in the working cylinder, of the piston rod; a first spring seat is arranged at the other end of the oil storage cylinder, and a second spring seat is arranged at the outer end of the piston rod; a damping spring is arranged between the first spring seat and the second spring seat. External impact energy on a steering machine can be rapidly absorbed through the additionally-arranged damping spring, and the energy absorbed through the damping spring can be rapidly converted into heat under the action of the piston rod in the working cylinder, a working medium and the oil storage cylinder, so as to achieve rapid elimination of vibration of the steering machine, and avoid the problem of potential safety hazards of a steering wheel, which are caused by the vibration of the steering machine.

The invention relates to a vapor-liquid diverting type capillary core vapor chamber heat exchanger and a preparation method, and belongs to the technical field of electronic device heat dissipation. The vapor-liquid diverting type capillary core vapor chamber heat exchanger is composed of a vapor cavity, fins and a heat dissipation fan. The vapor-liquid diverting type capillary core vapor chamberheat exchanger is simple in structure, the vapor cavity is filled with an integrally-sintered capillary core, and the capillary core is divided into an upper-layer capillary core and a lower-layer capillary core, wherein a tree-shaped vapor channel is machined in the upper-layer capillary core; phase change working media filling the vapor cavity are boiled and evaporated after absorbing heat, flowto the side wall surface and the upper wall surface of the vapor cavity in the tree-shaped vapor channel in the vapor cavity and are condensed for heat exchange; other capillary core structures except the vapor channel are used for sucking condensate to flow back to a heated area to form a working cycle, the gas-phase working medium and the liquid-phase working medium in the vapor cavity flow inthe vapor channel and the capillary core respectively, the mutual influence in the flowing process of the two phase working media is reduced, vapor is rapidly diffused to the condensation surface forheat exchange favorably, and the condensate flows back to the hot end of the heat exchanger in time so that the heat exchange performance of the vapor chamber heat exchanger can be effectively improved.

The invention discloses an aerobic device for short-distance backflow of high-concentration sludge and a sewage treatment system, relates to the technical field of sewage treatment, and solves the technical problems caused by arrangement of devices such as a submersible sewage pump and a centrifugal pump in a secondary sedimentation tank in the prior art. An aerobic tank of the device is positioned in a shell; the modular sedimentation tank is immersed in the aerobic tank, and a sludge return area is formed between the bottom of the modular sedimentation tank and the bottom of the aerobic tank; a gas pipe in the aerobic tank is communicated with the sludge return pipe and provides gas for the sludge return pipe through the gas pipe; the sludge return pipe is located in the sludge return area, the sludge return pipe is provided with a thick sludge port and a plurality of groups of gas sludge ports, and after the concentrated sludge generated by the modular sedimentation tank is settledto the sludge return area, the concentrated sludge is sucked into the sludge return pipe through the thick sludge port and sprayed into the aerobic tank through the gas sludge ports. The device has the advantages of low equipment energy consumption, short backflow path, difficulty in blockage of the sludge return pipe and good effluent quality.

The invention discloses a leg venous thrombosis prevention and treatment device and a control method thereof, and belongs to the field of medical instruments. The device comprises a leg binding bag, pressurizing air bags, an air path connecting pipe, a heating device, an external wire and a prevention and treatment instrument. The control method comprises three control modes, namely a treatment mode, a rehabilitation mode and a leisure mode, and each mode corresponds to specific parameters. According to the device, the three-stage pressurizing air bags are adopted to carry out deep pressurization and relaxation on blood vessels of the legs of a human body, meanwhile, the heating device is used for enhancing blood circulation, and the formation of deep venous thrombosis can be effectively avoided and relieved by presetting reasonable pressurization numerical values, pressurization frequency and heating temperature; and the device is easy to wear and reliable in performance, particularly, the design scheme of three-air-bag step-by-step pressurization can ensure rapid backflow of venous blood, and the device can be widely applied to clinical medical instruments.

The invention discloses a motor rotor cooling structure. The motor rotor cooling structure comprises a rotor and a heat conducting pipe, a seal is arranged at one end of the heat conducting pipe, the other end of the heat conducting pipe is open, the end, located in a motor casing, of a motor shaft on the rotor is provided with a coaxial blind hole, the open end of the heat conducting pipe is fixedly connected to the open end of the blind hole, the inner diameter of the heat conducting pipe gradually increases from the end with the seal to the open end, and a sintered layer is arranged on the inner wall of the blind hole of the motor shaft. According to the motor rotor cooling structure, the influence on the cooling efficiency of the heat conducting pipe caused by high-speed rotation of the rotor can be effectively avoided so that a motor can have a reliable cooling effect, and meanwhile the motor can be conveniently manufactured.

The invention discloses a feeding device and a feeding method thereof. The feeding device is used for separating multiple layers of stacked objects and comprises a bearing mechanism, a feeding lifter,a transferring device, a backflow lifter and a backflow conveying line. According to the scheme, a low-position tray can be lifted to a high position to be split through the feeding lifter, the high-position tray discharging requirements are effectively met, in addition, by arranging the transferring device, the feeding lifter can be effectively released, and when the tray is used for discharging, the tray of the feeding lifter can take materials again, so that the discharging time can be effectively utilized, the feeding efficiency can be improved, the backflow lifter and the backflow conveying line are further combined, backflow of the empty tray can be effectively achieved, and favorable conditions are created for rapid reutilization of the empty tray.

The invention discloses a low-pressure casting process for a high-strength aluminum alloy casting for an automobile, and belongs to the field of aluminum alloy castings. The low-pressure casting process for the high-strength aluminum alloy casting for the automobile comprises the specific steps that firstly, gas is injected into a low-pressure casting device, the low-pressure casting device comprises a crucible, a pressurizing pipe is fixedly connected to the crucible, a sealing cover is fixedly connected to the crucible, a lower cavity is fixedly connected to the sealing cover, an upper cavity is clamped to the lower cavity, two pairs of cooling plates matched with the lower cavity are fixed to the outer wall of the upper cavity, and molten aluminum in the device is pushed into the cavities through air pressure; the molten aluminum enters the cavities to be cooled and formed; after the cavities are opened, the device is demolded; and pressurized gas in the low-pressure casting device is exhausted, and device maintenance is carried out. The cavities can be cooled in a staged manner, and after casting is finished, residual molten aluminum drops can be brushed through a buffer plate in a liquid rising pipe, so that the molten aluminum completely flows back into the crucible.

The invention provides a battery pack heat management device as well as a heat dissipation method and a heating method thereof. The battery pack heat management device comprises a plurality of singlebatteries, a metal plate, a metal fiber rod, a box body, a heat-sink cooling plate, a reflux unit, an electromagnetic heater and a spray device, wherein liquid in the box body is absorbed into throughholes formed in the metal plate by means of the metal fiber rod and grooves formed in the inner wall of the through holes of the metal plate; the liquid between the metal plate and the metal fiber rod is heated while the temperature of the power batteries rises, and a liquid phase changes into vapor after the temperature rises to a certain value; the vapor is condensed by means of a cooling effect of the heat-sink cooling plate, and then flows back to the box body through the reflux unit, so that the aim of cooling a battery pack is achieved by circulation; the heat dissipation structure forthe batteries is simplified. Under the cold circumstance, the electromagnetic heater is used for rapidly heating the liquid in the box body so as to promote heat circulation around the single batteries. The device and the methods have high-efficiency self-operating heat dissipation capability and the heating capability, and solve the problems that the thermal management system is high in cost, andconsumes large amount of electric quantity of the power batteries.

The invention belongs to the technical field of resources and environment, and relates to the technical field of limited space air pollution prevention and treatment. The invention discloses a multi-person ward air purification system and method. The multi-person ward air purification system comprises an air circulation device arranged in a ward, the air circulation device is connected to an air purification device, the air circulation device is further connected to a sickbed isolation device, the air circulation device comprises an air collecting pipe group and an air dispersing pipe group, the air purification device comprises a disinfection and dust removal mechanism, the disinfection and dust removal mechanism comprises an air inlet communicating with the air collecting pipe group and further comprises an air outlet communicating with the air dispersing pipe group, the air purification device further comprises a humidifying mechanism communicating with the air dispersing pipe group, the sickbed isolation device comprises an air curtain generation mechanism matching with sickbeds and further comprises an air curtain backflow mechanism matching with the air curtain generation mechanism. The multi-person ward air purification system and method are fast in ventilation, good in purification effect and capable of isolating sickbeds.

A self-excitation oscillating-flow heat pipe with a netted pipeline is spliced by two metal plates. Grooves are formed on at least one metal plate integrally, form a pipeline for sealing up working media on the spliced plane of the two metal plates, and have a crisscross grid structure when being viewed from a direction perpendicular to the planes of the metal plates. With the self-excitation oscillating-flow heat pipe with the pipe network, blockage of the pipeline is overcome well. The self-excitation oscillating-flow heat pipe with the netted pipeline has the advantages of good temperature-equalizing performance, quick heat-transfer, quick returning of working liquid media and the like. What's more, the starting temperature of the self-excitation oscillating-flow heat pipe is reduced, and heat transfer performance thereof is improved remarkably.

The invention discloses a crankshaft oil wiper of an internal combustion engine. The crankshaft oil wiper of the internal combustion engine comprises an oil scraper (1), a flow baffle plate (2) and a diversion trench (3). The oil wiper has a plate-like structure made of stainless steel, is obliquely fixed on an oil bottom shell, and forms a fixed included angle with the tangential direction of rotation of a crankshaft, and a gap is formed between the oil wiper and the crankshaft; the oil scraper (1) is arranged on the flow baffle plate (2); the tip of the oil scraper (1) is in contact with the outer circumference of a balance weight; the flow baffle plate (2) is positioned in a splashing path of an oil drop which makes eccentric movement along the tangential direction of the rotation of the crankshaft; the diversion trench (3) is arranged at the tail end of the flow baffle plate (2); and front and back oil tanks of the oil bottom shell are arranged below two ends of the diversion trench (3). The crankshaft oil wiper of the internal combustion engine is novel in structure and simple in process, so that lubricating oil flows back quickly, the atomization of high-speed oil drops in a crankshaft case can be prevented, the waste gas pressure in the crankshaft case is effectively reduced, and the pollution caused by the internal combustion engine to the environment is reduced at the same time.

The invention discloses a flaring heat pipe. The flaring heat pipe comprises a hollow pipe body, wherein both ends of the hollow pipe body are sealed, and working media are injected into the hollow pipe body; the hollow pipe body comprises a heating section, an insulating section and a cooling section; the inner diameters of the heating section, the insulating section and the cooling section are the same; the outer diameters of the insulating section and the cooling section are consistent, and the outer diameter of the heating section is greater than that of the insulating section and the cooling section; a first capillary structure is arranged on the inner wall of the heating section, and second capillary structures are arranged on the inner walls of the insulating section and the coolingsection; and the thickness of the first capillary structure is greater than that of the second capillary structures. The invention further discloses a manufacturing method of the flaring heat pipe. According to the flaring heat pipe provided by the invention, the thickness of the capillary structure of the heating section is large, so that the backflow circulating speed in a pipe cavity body is increased, and the heat transfer efficiency is greatly improved; a die cutting mode is adopted, a part of the necking position is hollow after being cut, and protective gas can enter the pipe when thetail end is welded, so that the welding position is prevented from being oxidized by high temperature, and annealing is not needed.

The invention relates to a heat pipe which comprises a pipe body, wherein the pipe body comprises an evaporating part and a condensing part which are positioned at the two ends of the pipe body; the pipe body in the evaporating part region is provided with a smooth inner wall, and the smooth inner wall is covered with a master capillary structure; and the inner wall of the pipe body in the condensing part region forms an auxiliary capillary structure, and the capillary force of the auxiliary capillary structure is less than the capillary force of the master capillary structure. The method for manufacturing the heat pipe comprises the following steps of: providing the pipe body, wherein the pipe body comprises the inner wall with the auxiliary capillary structure; eliminating the auxiliary capillary structure at one end of the pipe body, and forming the smooth inner wall; providing a steel bar, and plugging one end of the steel bar with the auxiliary capillary structure into the pipe body to fill the pipe body with the auxiliary capillary structure; filling powder into the pipe body with the smooth inner wall; sintering the pipe body filled with the powder to form the master capillary structure; and extracting the steel bar.

The invention discloses a plate hot press, which comprises a base plate, hydraulic systems, guide rails and an oil cavity. Supporting columns are fixed to the top end of the base plate, the top ends of the supporting columns are connected with a top plate, the hydraulic systems are mounted at the top of the top plate, limiting plates are arranged on the front sides and the rear sides of the base plate and the top plate correspondingly, the guide rails are arranged on the inner sides of the limiting plates, sliding blocks are mounted on the outer sides of the guide rails, fixing rods are fixedto the outer sides of shaft rods, external-connecting rods are mounted on the front sides and the rear sides of press fit partition plates correspondingly, the oil cavity is formed inside the base plate, and the outer side of the oil cavity is connected with an oil pump. According to the plate hot press, oil can be preheated, rapid processing and use are convenient to ensure, rapid backflow of hotoil is facilitated, thus energy is saved, meanwhile, the side is convenient to arrange, plate leakage is avoided, long-term stable separation between the press fit plates can be ensured, plate addingis facilitated, and long-term use is ensured advantageously.

The invention discloses prevention and treatment equipment for foot venous thrombosis and a control method of the equipment, and belongs to the field of medical instruments. The equipment includes a foot strapping bag, a pressurizing device, an air channel connection tube, a heating device, an external electrical wire and a prevention and treatment device. The control method contains the followingthree control modes: a treatment mode, a rehabilitation mode and a leisure mode, wherein each mode is corresponding to specific parameters. The equipment uses the pressurizing device to deeply pressurize and relax human foot blood vessels, and uses the heating device to strengthen blood circulation, and by presetting a reasonable pressurizing value, pressurizing frequency and heating temperature,the equipment can effectively avoid and slow down the formation of deep venous thrombosis; and the equipment is easy to wear, has reliable performance, can be suitable for users with different foot sizes, and especially, impact points designed at the foot bottom place can effectively improve experience of the users.

The invention relates to the technical field of heat dissipation equipment, in particular to an ultrathin micro-heat pipe with a micro-channel capillary structure. The ultrathin micro-heat pipe comprises a silicon nitride substrate, bottom-layer graphite, middle-layer graphene and top-layer graphite which are sequentially arranged from bottom to top, wherein the middle-layer graphene is long-strip-shaped and is arranged at equal intervals, micron-sized rectangular channels are formed in the silicon nitride substrate, the bottom-layer graphite and the middle-layer graphene, specifically, the rectangular channels are rectangles with a section width of 3-5 microns and a height of 18-22 microns, and the interval between the middle-layer graphene is 120-130nm. The micro-channel structure formedby the invention is micron-scale or nano-scale, and has high capillary pressure and large sliding length, so that the flow velocity of a working medium liquid in the heat pipe is obviously increased,and the liquid in a condensation section in the heat pipe can quickly flow back to the evaporation section.

The invention discloses a vapor chamber and a manufacturing method thereof and electronic equipment, the vapor chamber comprises a shell, a capillary channel is formed in the shell, and the depth of the capillary channel is gradually reduced from the position close to a heat source to the position far away from the heat source, so that the backflow speed of a liquid working medium channel is increased, and the situation that the vapor chamber is close to the heat source and has a liquid fault is prevented; and the heat dissipation power of the vapor chamber is enhanced.

The invention discloses a novel pneumatic hydraulic jack, which mainly comprises a control handle, a lifting control connecting plate, an air intake control valve seat, a falling control valve seat, ahydraulic oil tank vent valve, a pneumatic hydraulic pump assembly, a hydraulic cylinder, a hydraulic oil tank, a base, a support seat and a moving wheel. Wherein the hydraulic oil tank is connectedwith and fixed to the intake control valve seat through a pneumatic hydraulic pump assembly, Hydraulic tank vent valve, Retreat control valve seat, the oil tank ventilation valve seat, the air intakecontrol valve seat, the drop control valve seat and the hydraulic cylinder are communicated with each other through a pipeline, the hydraulic cylinder and the hydraulic oil tank are connected with each other through a high-pressure pipeline, the lift control connecting plate is fixed above the air intake control valve seat and the drop control valve seat, and the control handle is installed on thelift control connecting plate; An independent intake control valve seat is provided for supplying a pneumatic hydraulic pump assembly as a power source, and an independent drop control valve seat isprovided, which is provided with a slow-speed and a fast-speed two-stage reset needle valve, so as to realize uniform speed descent.

The invention discloses a manufacturing method of an ultrathin heat-conducting patch and the ultrathin heat-conducting patch. The structure manufacturing of the ultrathin heat-conducting patch is achieved through a 3D printing technology. The ultrathin heat-conducting patch specifically comprises a base plate, an upper plate, capillary pore layers, condensation structures and the like. The ultrathin heat-conducting patch is manufactured before vacuumizing and liquid injection processes, is integrally formed in a 3D printing mode, and is firm and durable; meanwhile, ultrathin size manufacturingcan be achieved through the 3D printing technology; the condensation structures of the base plate and the upper plate are correspondingly arranged and pressed against each other in pairs, so that deformation of the heat-conducting patch is avoided; the state change speed of working liquid making contact with the capillary pore layers can be increased through manufacturing of the capillary pore layers of the base plate and the upper plate; and the thermal resistance of the ultrathin heat-conducting patch is lowered, and the heat dissipation efficiency is improved, so that the service life of electronic equipment is guaranteed.

The invention discloses an anti-dripping bottle cap and an anti-dripping method thereof. The bottle cap comprises a cap body and an upper cap which are connected with each other, a guiding pipe is arranged in the middle of the cap body, the upper part of the guiding pipe is a guiding nozzle, and the guiding nozzle is inclined; a reflux part is arranged at the bottom of the guiding pipe, the peripheral edge of the reflux part is connected with the inner wall of the guiding pipe, an opening is formed in the middle of the reflux part, and one end of the opening is located on the lower part of theguiding nozzle. The anti-dripping method comprises the steps that firstly a product flows out from the inner nozzle end quickly by using the different depths of the inner nozzle end and the reflux end on the opening; then the product is poured out from the guiding nozzle, and by using the inclined setting of the guiding nozzle, a good and smooth curve is formed by a trajectory of the product during pouring; and after the product is poured out, most of the product is refluxed quickly from the inner nozzle end, and the residual product is refluxed along the curved surface of the whole reflux part. According to the anti-dripping bottle cap and the anti-dripping method thereof, the smoothness of liquid output and liquid collection during oil pouring can be effectively improved, and the occurrence of oil leakage or oil dripping is fundamentally avoided.

The invention discloses a multifunctional convenient-to-use roll-on applicator for external use. The multifunctional convenient-to-use roll-on applicator comprises a bottle, a ball component and a top cover. The top of the bottle is peripherally provided with an external thread, the bottom surface of the ball component is provided with an internal thread corresponding to the external thread of the bottle, and the bottle and the ball component are connected through the threads. The lower portion of the ball component is peripherally provided with an external thread, the bottom surface of the top cover is provided with an internal thread corresponding to the external thread of the ball component, and the ball component and the top cover are connected through the threads. An elastic threaded base is arranged at the bottom of the bottle, and a bottle opening switch is arranged at a position, close to a bottle opening, of the upper portion of the bottle. The ball component comprises a ball seat and a ball, the ball is inserted into the top of the ball seat, and a ball seat ventilation switch is arranged at a position, close to the ball, of the upper portion of the balls seat. The multifunctional convenient-to-use roll-on applicator for external use has advantages of simple structure, convenience and safety in use, easiness in popularization, convenience in liquid medicine application, effectiveness in prevention of liquid medicine volatilization and the like and has effects that internal treatment of related diseases can be realized by the aid of the ball component while adjuvant treatment of diseases can be realized by means of magnetotherapy.

The invention discloses a preparation method of a capillary core structure and further discloses the capillary core structure. The preparation method comprises the steps that groove structures arrayedin parallel are machined in the surface of a metal base board; and the surfaces of the grooves are subjected to cavitation erosion through liquid vibrating along with ultrasonic waves, and microcellular structures distributed at random are formed. The capillary core structure comprises the metal base board and the groove structures arrayed in parallel in the base board; and the multiple micropores distributed at random are formed in the surfaces of the groove structures. The capillary core structure is directly formed on the surfaces of the grooves, so that the capillary suction for working media is effectively enhanced, the lubrication area is increased, much more nucleate boiling points are provided, and the structure has the excellent impact resistance. The capillary core structure isapplied to flat board heat pipes and can promote rapid returning and re-boiling of condensation working media, and the heat transfer performance of the flat board heat pipes and the stability under the vibration working condition are enhanced.