256results about How to "Speed up circulation" patented technology

The invention discloses a handheld charging drill with a charging function, and relates to the technical field of handheld charging drills, the handheld charging drill comprises a shell, a battery assembly is fixedly connected to the middle of the inner wall of the shell, a fixing block is fixedly connected to the top of the shell, a sliding groove is formed in the outer side of the fixing block, and the battery assembly is fixedly connected to the middle of the inner wall of the shell. A fixing plate is fixedly connected to the top of the fixing block, a protruding block is fixedly connected to the end, away from the fixing block, of the fixing plate, and a circular groove is formed in one side of the protruding block. According to the handheld charging drill with the charging function, the protruding block is driven by the fixing plate to be located in the limiting hole, so that it can be ensured that stable connection is formed between the charging assembly and the electric drill body, and by means of the tight connection mode, a battery can be effectively prevented from accidentally falling off in the using process of the electric drill; meanwhile, the fixing blocks and the fixing plates are symmetrically arranged on the two sides, so that the charging assembly is not prone to falling off under the conditions that the charging assembly is vibrated, impacted and the like.

The utility model discloses an elastic nylon fabric which comprises a fabric layer, the fabric layer is formed by interweaving warp yarns and weft yarns in a plain weave mode, the warp yarns are of a ZS double wrap yarn structure formed by wrapping spandex with low-denier nylon, the twisting mode is that Z twisting and S twisting are conducted at the same time, and the twisting degree ranges from 1800 twists to 2000 twists. According to the elastic nylon fabric, a ZS double-wrapping structure is adopted in the warp direction of the elastic nylon fabric, the overall tension of wrapping yarn is ensured, and the elasticity and stability of the fabric are improved. Meanwhile, by adjusting the density in the warp direction and the weft direction, the fabric not only has an excellent cool feeling effect, but also has good anti-ultraviolet performance, and the air permeability is optimized.

The conveying system comprises a conveying pipeline, a dredging and conveying assembly is installed on the conveying pipeline and comprises an installation groove formed in the conveying pipeline, the upper end and the lower end of the installation groove penetrate to the upper side and the lower side of the conveying pipeline respectively, a movable block is movably installed in the installation groove, and the movable block is connected with the conveying pipeline. A material conveying groove is formed in the movable block, a dredging unit is installed on the movable block, the inner diameter of the material conveying groove is the same as that of the material conveying pipeline, the material conveying groove is communicated with the material conveying pipeline, and the dredging unit comprises a through groove formed in the movable block; in the working process, the conveying groove and the through groove are formed in the movable block, during normal conveying, the conveying groove in the movable block is adjusted to be communicated with the conveying pipeline, and when material blockage occurs, the through groove in the movable block is adjusted to be communicated with the conveying pipeline, so that material conveying and blockage dredging are facilitated.

The utility model belongs to the technical field of heat dissipation structures, and particularly relates to a circuit board heat dissipation structure. Comprising a fan, a shell, heat dissipation plates, heat conduction copper pipes, semiconductor chilling plates and two-way memory springs, the bottom ends of the heat conduction copper pipes are evenly distributed in an S shape and fixedly connected with the shell through the semiconductor chilling plates arranged on the lower surfaces of the heat conduction copper pipes, a circuit board is arranged on the upper surfaces of the bottom ends of the heat conduction copper pipes, and the heat dissipation plates are connected to the upper ends of the heat conduction copper pipes in a sleeving mode. And a two-way memory spring is arranged between every two adjacent heat dissipation plates. And the fan is arranged on the shell. The circuit board heat dissipation structure has the advantages of low power, low power consumption, simple device, compact structure and damping function, and can adjust the heat dissipation amount according to the internal temperature of the device.

The utility model discloses a small-size heavy-current golden finger connector, which comprises an insulating main body and a plurality of terminal sheets, the insulating main body is provided with a plurality of terminal mounting holes at intervals, the plurality of terminal sheets are respectively inserted into the terminal mounting holes to be fixed, and one end of each terminal sheet is provided with a plurality of contact pins at intervals. One end of each contact pin is bent towards one side surface of the terminal sheet to form an elastic contact arm, an included angle is formed between the elastic contact arm and the contact pin, and the end part of the elastic contact arm is bent to form an arc-shaped contact bulge. According to the double-row multi-contact design, the number of a single PIN is increased to eight, so that the circulating current is more than two times that of an original terminal, the current-carrying and voltage-resistant performance of the terminal is greatly improved, the terminal can be widely applied to a large-current connector, the current-carrying capability and vibration resistance of the large-current connector are improved, and accessories of all parts are simple in structure and low in cost. And large-scale production and assembly are facilitated.

The utility model discloses a floating feed hopper dust fall structure, including feeding mechanism, the top of feeding mechanism is fixedly equipped with the dust fall box through the support, the both sides of dust fall box inner cavity bottom are both fixedly equipped with the vibration motor, the top of vibration motor is equipped with the mixing box, and the mixing box is equipped with the dust fall box. And a first driving motor is fixedly mounted at the left end of an inner cavity of the mixing box. Through the arrangement of a conveying pump and a conveying pipe, the effect of conveying dust into the mixing box is achieved, through the arrangement of a vibration motor, the effect of primarily mixing water and dust in the mixing box is achieved, and through the arrangement of a first driving motor and a stirring rod, the effect of multiple mixing of water and dust is achieved; and through arrangement of a filter plate, the effect of performing multiple filtration and purification on air obtained after water purification is achieved, and through arrangement of a second driving motor and fan blades, internal air circulation can be accelerated.

The utility model relates to the technical field of bus ducts, and discloses a bus duct with a heat dissipation structure, which comprises a bus duct body, a top plate positioned at the top of the bus duct body and connecting modules positioned on two sides of the bus duct body, and one side, far away from the connecting modules, of the bus duct body is provided with a flow guide assembly in sliding connection with a chute. A through hole is formed in the side, close to the flow guide assembly, of the bus duct body, and a heat dissipation assembly is arranged on the side, away from the bus duct body, of the through hole. According to the bus duct with the heat dissipation structure, the sealing rubber strips are rapidly installed in the grooves, then the heat conduction plates and the through holes are arranged in an inserted connection mode, expansion buckles and positioning holes are matched to serve as matching components, rapid installation of the heat conduction plates and the bus duct body can be achieved, and then locking blocks and the expansion buckles serve as the matching components, so that the heat dissipation structure is formed. The heat conduction plate and the bus duct body can be quickly fixed, and the heat conduction plate and the bus duct body can be quickly disassembled when the heat dissipation assembly is cleaned in the later period.

The workpiece cooling mechanism comprises the 3D printer, a supporting plate is movably installed on a base of the 3D printer, a fixing base is fixedly connected to the top of the supporting plate, a bearing plate is rotatably installed on the top of the fixing base, a plurality of lug plates are fixedly connected to the edge of the supporting plate, and electric push rods are installed on the tops of the lug plates. A first air pipe is installed at the output end of the electric push rod and provided with a plurality of first air nozzles, a first draught fan used for ventilating the first air pipe is installed at the position, on one side of the fixing base, of the top of the supporting plate, a mounting frame is installed at the top of the rear end of the 3D printer base, a second draught fan is installed at the top of the mounting frame, and the output end of the second draught fan is connected with a second air pipe penetrating through the mounting frame. And a plurality of tuyeres II are arranged on the air pipe II. According to the utility model, the curing speed of molten plastic can be accelerated by accelerating the circulation of air around a printed workpiece, so that the printing speed can be improved, and the cooling of the workpiece can be accelerated by rotating the workpiece and blowing air to the workpiece.

The application discloses a heat dissipation reinforced movable television background wall, which comprises a base wall, an outer frame, an inner wall, a television and a heat dissipation assembly. First and second hollow rotating shafts are arranged on opposite sides of the outer frame, the first hollow rotating shaft is rotatably installed on the base wall, and the second rotating shaft is connected with the output end of a driving motor. Third and fourth hollow rotating shafts are arranged on opposite sides of the inner wall, the third hollow rotating shaft is arranged in the first hollow rotating shaft, the third and first hollow rotating shafts are coaxially arranged, and the fourth rotating shaft is rotatably installed on the outer frame. A temperature and humidity sensor is arranged on the bottom surface of the installation groove, and the temperature and humidity sensor is arranged on the back of the television. A fan is arranged in the side frame of the outer frame. Compared with the prior art, the application can effectively prevent the temperature of the television from being too high and timely realize heat dissipation of the television.

The utility model relates to the technical field of traditional Chinese medicinal material planting facilities, concretely is the sunshade and insect prevention integrated shed frame of traditional Chinese medicinal material, including the shed frame body, the both sides of shed frame body all install a plurality of side components, the side component includes the fixed mounting frame with the shed frame body, installs the blowing assembly in the mounting frame, and the electric shock net is fixed with in the blowing assembly outside in the mounting frame inside, and a plurality of lighting lamp boards are installed on the mounting frame inner wall, the top of shed frame body is equipped with a top sunshade component. The utility model discloses a side component including blowing assembly, electric shock net and lighting lamp board is arranged on the both sides of shed frame body, and the sunshade component and drive mechanism of folding top are combined, and the integration design of sunshade and insect prevention function is realized. Side component can utilize lighting lamp board to attract pest, then kill pest through electric shock net, and blowing assembly can promote the air circulation in the shed simultaneously, and top sunshade component can adjust the sunshade area according to the demand.

This invention relates to the field of semi-solid-state battery technology, and more particularly to a free radical in-situ polymerization semi-solid-state battery, comprising a protective housing, a top assembly on the top of the protective housing, and a protective cover on the top of the protective cover, with an installation pipe fixedly connected to the top of the protective cover. Through the coordinated use of the protective cover, a fan body, a temperature detector, a relay, a partition plate, and side guards, the fan body, located within the installation pipe, is activated by the relay when the temperature detector detects that the internal temperature exceeds a threshold, accelerating airflow and preventing heat accumulation inside the protective housing. The partition plate more effectively protects the internal batteries and also provides insulation to a certain extent, preventing heat interference between adjacent batteries. The side guards further expand the heat dissipation area, providing strong support for the stable operation of the battery.

The utility model discloses a motor end cover structure, which relates to the technical field of motor end covers and comprises a motor end cover main body, a plurality of fixing plates distributed in an annular array are mounted at the rear part of the outer surface of the motor end cover main body, and mounting holes are formed in the plurality of fixing plates. The upper portion and the lower portion of the front inner wall of the motor end cover body are each provided with a plurality of heat dissipation holes, the heat dissipation holes extend to the front side of the motor end cover body, the upper portion and the lower portion of the front end of the motor end cover body are each provided with a screen, and the left portion and the right portion of the front end of the motor end cover body are jointly provided with a U-shaped frame. And a connecting shaft is movably arranged in the U-shaped frame in a sleeving manner. According to the utility model, the baffle plate, the brush and the connecting shaft cooperate with each other to block the front of the screen, so that dust, metal chips or other impurities are prevented from passing through the heat dissipation holes to pollute the interior of the motor, and the performance and normal use of the motor are ensured.

The utility model discloses a VOCs organic waste gas treatment device which comprises a carbon box, clamping seats are fixedly connected to the two sides of the inner side face of the carbon box, activated carbon adsorption plates are clamped in the clamping seats, and a conveying pipe is fixedly connected to the bottom of the inner side face of the carbon box. According to the VOCs organic waste gas treatment device, an activated carbon adsorption plate, a fresh air heat exchanger, a fan and a combustion furnace are arranged, the activated carbon adsorption plate adsorbs organic components in waste gas into micropores of activated carbon for concentration, filtered clean gas reaches the standard and is discharged, and fresh air is heated to a preset value through the fresh air heat exchanger and then enters a carbon box through a second air inlet pipe; organic waste gas subjected to desorption treatment is purged, meanwhile, VOCs organic waste gas is conveyed into a combustion furnace through a gas collecting pipe and a gas collecting hood through a draught fan, the VOCs organic waste gas is decomposed into carbon dioxide and water vapor after being subjected to catalytic combustion, and finally the VOCs organic waste gas is conveyed to a fresh air heat exchanger through a connecting pipe to be discharged after being subjected to heat exchange and cooling and reaching the standard, so that an activated carbon adsorption plate can be recycled; and the use cost is reduced.

This utility model discloses a coffee bean stirring mechanism and a coffee roaster. The coffee bean stirring mechanism includes a roasting tray, a stirring motor, and a stirring assembly. A connecting seat is connected to a connecting rod, and stirring blades are distributed on the connecting rod. The stirring blades have radially arranged ventilation holes, and the stirring groove wall of the roasting tray has ventilation holes. The stirring blades of this application have multiple ventilation holes arranged radially along the center. During rotation, these holes guide hot airflow through the coffee bean layer, preventing localized heat accumulation. Simultaneously, the ventilation holes reduce the rotational resistance of the stirring blades, allowing the coffee beans to form a three-dimensional tumbling trajectory under the combined action of airflow and mechanical stirring, significantly improving the uniformity of heating.

The utility model discloses a rust-proof anchor windlass which comprises an engine, a speed reducer and an anchor chain wheel. The engine and the speed reducer are connected through the coupler, and the speed reducer and the cable lifter are connected through the gearbox. A protective shell is arranged on the periphery of the cable lifter and composed of side plates, a top cover and a bottom plate. An air inlet channel extends from the right side plate, and a fan is mounted in the air inlet channel; vent holes are formed in the tops of the side plates; the top cover is hinged to the side plates through hinges, and baffles extend downwards from the periphery of the top cover. A hole is formed in the rear side plate, and an anchor chain is arranged in the hole and connected with an anchor chain wheel. Through the synergistic effect of the engine, the speed reducer, the gear box and the cable lifter, dragging, anchor weighing and anchor dropping operations of an anchor chain are achieved; meanwhile, through the design of the protective shell, the cable lifter and the anchor chain are effectively prevented from being corroded by the external environment, particularly rusting is prevented, the service life of the cablelifter is prolonged, and the reliability of the cablelifter is improved.

This utility model relates to an air-cooled refrigeration unit for beer storage, comprising a refrigerated display case and a refrigerated air-cooled unit disposed on the upper side of the refrigerated display case. Multiple support mechanisms are linearly arrayed inside the refrigerated display case. An air supply mechanism is provided at the bottom of the refrigerated air-cooled unit. Each support mechanism includes an air outlet nozzle rotatably fitted inside the refrigerated display case. By setting multiple support mechanisms, the air outlet nozzles can directly spray cold air onto the beer bottles. Multiple air outlet nozzles cool multiple layers of beer bottles one-to-one, facilitating precise cooling of the beer bottles, improving cooling efficiency, and enhancing the uniformity of cooling across multiple layers of beer bottles within the refrigerated display case. The refrigerated air-cooled unit drives multiple air intake holes on the upper part of the U-shaped frame to draw in air, forming a horizontal cold airflow to cool the upper part of the beer bottles, further improving the uniformity and efficiency of cooling.

The invention provides a temperature control device and method for AR glasses and the AR glasses, and the device comprises a temperature control module, a temperature detection module, a controller and a wearing detection module, and achieves the intelligent regulation and control of the face environment temperature in the wearing process of the AR glasses. The temperature control module is integrated with the piezoelectric fan and arranged on the inner side of the connecting position of the glasses legs and the lenses, a rhombic blowing area covering the whole face can be formed by matching with the air outlet in the specific direction, circulation of air around the face is effectively accelerated, and the sensible temperature is reduced. The wearing detection module can accurately recognize the wearing state of the user, and invalid operation of the device in a non-wearing state is avoided; the temperature detection module collects the face environment temperature in real time, and the controller matches the temperature control grade and controls the temperature control module to start and stop and adjust the air volume according to the comparison result of temperature data and a preset threshold value. The whole device is simple in structure and reasonable in design, the original appearance and wearing comfort of the AR glasses are not affected, the face environment temperature can be accurately adjusted, and the use experience of a user is remarkably improved.

The utility model discloses a combined feeder cabinet relates to the technical field of electric power equipment, the utility model discloses a feeder cabinet body, heat dissipation box and protective door still include: the one side of heat dissipation box upper end is provided with the chute, the inside slide of chute is connected with the slide, and the side end of slide is provided with adjusting mechanism, and the inside of heat dissipation box is provided with heat dissipation mechanism, and the inside of feeder cabinet body is provided with slide rod, and the outer wall of slide rod is equipped with the sleeve, and the inside fixed connection of feeder cabinet body has the sliding block, and the upper end sliding connection of sliding block has the assembly plate. Install the connecting rod, when the temperature of feeder cabinet body inside is too high, start motor, make its below heat dissipation fan operation, utilize heat dissipation fan to ventilate feeder cabinet body inside, and cooperate with the air -flow of ventilation baffle can accelerate feeder cabinet body inside, accelerate the heat loss of feeder cabinet body inside, and set up the dust screen of heat dissipation box's lower end dustproof air that enters to feeder cabinet body.

This invention discloses an automatic safety inspection device for central air conditioning outdoor units, belonging to the field of air conditioning outdoor unit detection technology. It includes: a handheld support assembly comprising a support plate and a handheld lever fixed to the side wall of the support plate, with a display host fixedly mounted on the handheld lever; and an external insulation assembly comprising an insulation side plate fixedly mounted on the support plate, with an external insulation cover fixedly connected to the side of the insulation side plate away from the handheld lever, the side of the external insulation cover away from the insulation side plate being open. By setting up the external insulation assembly, internal insulation assembly, and shrinkage adjustment assembly, when using this safety inspection device for inspection, the vent is sealed to form a closed insulation cavity in low-temperature environments, and the vent is opened to allow air circulation, reducing the internal temperature. This reduces the temperature drift of the Hall current sensor due to the influence of the operating environment temperature, improves detection accuracy, and thus helps to improve the accuracy of leakage safety detection of central air conditioning outdoor units.

This invention discloses a catalytic reactive distillation unit, apparatus, and method. The catalytic reactive distillation unit includes: a reaction mass transfer channel, the upper end of which receives low-temperature liquid-phase reactants flowing downwards, and the lower end of which receives high-temperature gas phase flowing upwards; the reaction mass transfer channel contains a catalyst layer and a packing layer, with the catalyst layer positioned above the packing layer, and a first space between them; and a rising gas bypass, located outside the reaction mass transfer channel and connected to the first space. The liquid-phase products after the catalytic reaction merge with the high-temperature gas phase in the packing layer and undergo gas-liquid mass transfer. The rising gas phase after mass transfer carries the light components from the liquid-phase products into the rising gas bypass, completing mass transfer separation. This invention, through the setting of the rising gas bypass, not only increases the gas phase flow rate and effectively reduces the pressure drop within the reaction mass transfer channel, but also effectively solves the space occupation problem of the equipment. This invention can clean the blockage of the catalyst filter without additional power and can realize online replacement of the catalyst and / or packing.

The invention discloses a transformer capable of reducing loss, and relates to the technical field of transformers, the transformer comprises a shell and an adjusting assembly, a guide plate is arranged at the upper part in the shell, a housing is arranged in the middle of the guide plate, the adjusting assembly is arranged at the inner side of the housing, the adjusting assembly comprises a shaft rod, and the shaft rod is arranged at the inner side of the housing; an adjusting cavity is formed in the lower portion of the shaft rod. When the device is used, the device can be automatically adjusted according to the temperature change in the transformer, so that when the temperature rises, the circulating flowing speed of oil liquid is increased, heat dissipation is accelerated, the heat dissipation efficiency of the device is positively correlated to be matched with the temperature change of the device, it is guaranteed that the device can dissipate heat in time, and the service life of the device is prolonged. According to the device, the temperature of the oil liquid is increased, additional loss increase caused by too high temperature is avoided, oil sludge mingled in the oil liquid can be separated and removed when the oil liquid is circulated, and the situation that the oil sludge adheres to the device, the heat dissipation performance of the device is reduced or the additional loss of the device is increased is avoided.

The invention relates to the technical field of glass substrates, and discloses an LED display screen based on a glass substrate and a preparation method thereof.The LED display screen comprises a heat dissipation box, the heat dissipation box is fixedly connected to the rear side of a mounting frame, the left side and the right side of the heat dissipation box communicate with first heat dissipation plates, and a motor is fixedly connected to the top of each first heat dissipation plate; the output end of the motor penetrates through the first heat dissipation plate and is fixedly connected with a first gear, the top of the inner side of the heat dissipation box is rotationally connected with a plurality of second gears, the first gear and the second gears are connected in a meshed mode, and the bottom of the first gear is fixedly connected with an air plate. After a motor is started, a first gear rotates along with the motor and drives an air plate to rotate, airflow formed by rotation of the air plate is used for dissipating heat of the device, meanwhile, the first gear drives a second gear and a reciprocating rod to rotate through the meshing effect, a guide plate is promoted to move up and down along a mounting frame, and therefore the liquidity and the mixing degree of cooling liquid in the frame are enhanced; and the heat dissipation effect of the device is further improved.

The invention discloses a theme style sharing method and device and a server, and relates to the technical field of computers.The method comprises the steps that a first terminal adjusts configuration parameters of a local artificial intelligence model in response to personalized configuration operation on theme styles, and style configuration parameters are obtained; wherein the artificial intelligence model generates a target digital asset of a personalized theme style corresponding to the personalized configuration operation under the condition that the artificial intelligence model runs based on the style configuration parameters; performing structured processing on the style configuration parameters to generate a style configuration file; and sharing the style configuration file to a second terminal to enable the second terminal to restore the style configuration parameters based on the style configuration file, and generating a target digital asset based on a local artificial intelligence model and the style configuration parameters of the second terminal to reproduce the personalized theme style. According to the method and the device, the user can be supported to perform personalized creation on the theme style and perform efficient sharing on the creation result, and meanwhile, the shared theme style can be ensured to be accurately reproduced at the receiving end.

The present application relates to the technical field of food processing, and discloses a dampness-removing and spleen-strengthening herbal beverage and a preparation method thereof, which is made of ginseng, dried tangerine peel, Chinese yam and the like, and is characterized by constructing a saponin-starch-lipid ternary inclusion compound structure by using source components of raw materials. The preparation method comprises the following steps: preparing a saponin-based active water phase, coupling wet pulverization of oil-containing raw materials and in-situ emulsification, performing controlled enzymolysis on starch-rich raw materials, and performing thermodynamic self-assembly complexing in a sub-temperature region of 53 DEG C to 57 DEG C. Through special microstructure design, the present application effectively solves the technical problems of easy escape of volatile components and easy retrogradation and precipitation of starch components, significantly improves the physical stability and bioavailability of the beverage, and realizes the effects of tonifying without stagnation and dampness-removing with fragrance.

The utility model discloses a kind of corrosion-resistant stainless steel forgings, including stainless steel forging body, the tray of being placed in the lower end of stainless steel forging body, the protective shell of being placed in the upper end of tray, the first groove of being opened in the upper end of protective shell, the outer protection cylinder of being fixedly connected in the bottom surface of the inner wall of first groove, multiple limit cylinders being fixedly connected in the bottom surface of the inner wall of first groove, multiple limit posts being fixedly connected in the upper end of tray, rubber cylinder and multiple through holes being opened in the lower end of protective shell and being placed in the inner wall of outer protection cylinder, the upper end of stainless steel forging body is provided with the protection mechanism for protecting stainless steel forging body, handle is fixedly connected in the upper end of protection mechanism;The upper end of stainless steel forging body is opened with cylindrical groove, rubber cylinder inner wall and stainless steel forging body side wall are attached;Limit post upper end passes through through hole and extends to the inner wall of limit cylinder. The utility model has the advantages of good moisture-proof effect, anti-collision and protection mechanism can be quickly disassembled.

The utility model discloses a pearl orchid tree Qianlong tribute tea is with dehydration device for making, including base, the top of base is equipped with dehydration tank, the inside of dehydration tank is equipped with the mechanism of turning over that turns over tea leaf, and the mechanism of turning over includes the same placement bucket fixed in the both ends of dehydration tank inner wall, and the inner wall one end of is fixed with fixed plate, and the one end swing joint of fixed plate has the swivel lever, and the other end swing joint of swivel lever and placement bucket's inner wall other end, and the outer wall fixed of swivel lever has a plurality of fixed axle, and the outer wall of a plurality of fixed axle all fixed has a plurality of silica gel turning over shovel, and one end of dehydration tank is installed with speed -reducing motor, and the output shaft of speed -reducing motor and swivel lever one end fixed connection. The utility model has realized the effect of pearl orchid tree Qianlong tribute tea to heat dehydration sufficiently, prevents the accumulation of tea leaf immobile and influences dehydration efficiency, has improved the efficiency of pearl orchid tree Qianlong tribute tea dehydration processing to the air circulation, and has helped betterly taken away moisture.

The utility model discloses a built -in quick dismouting battery suitable for exploring unmanned plane, including polymer lithium battery battery group, battery shell, battery shell cover plate no.

The utility model discloses a cervical vertebra deep sleep traction pillow, including pillow body, be provided with head support area on the pillow body, the pillow body front is provided with neck support area, the head support area front both sides are provided with the lateral sleep area, and the neck support area both sides are provided with the shoulder department adhesion area, the lateral sleep area bottom is provided with the arm placement area, the head support area inboard is provided with the hollow air -permeable guide hole, the head support area rear is provided with the auxiliary area, the utility model: through the special design of head support area, lateral sleep area, neck support area, shoulder department adhesion area etc. each area makes it can be closely combined with human head, neck, shoulder part etc. position, satisfies the demand of different body shape and sleeping posture crowd, provides effective support for cervical vertebra, reduces the cervical vertebra soreness, stiff neck etc. situation that appears when the user sleeps, and hollow air -permeable guide hole can promote air circulation, improves the air -permeable performance of pillow.

This utility model relates to a quick-assembly and disassembly device, specifically a safety protection device that allows for quick assembly and disassembly. It includes a protective cover with mounting plates symmetrically arranged at both ends. A wire-binding component is fixedly mounted on the side wall of each mounting plate. The wire-binding component includes a first wire clamp and a second wire clamp with identical structural shapes. The two wire-binding components are detachably mounted at both ends of the protective cover. A gravity locking rod is fixedly mounted on the side wall of the first wire clamp, used to achieve gravity locking with both ends of the protective cover. Both the first and second wire clamps have wire outlets through which the wire bundle passes. The arrangement of a movable rod and magnets allows the wire outlets to open and close flexibly. When the movable rod rotates and the first and second magnets attract each other, the wire outlets close, preventing the wire bundle from coming out and protecting it from external interference. When it is necessary to organize the wire bundle, pulling the movable rod separates the magnets, opening the wire outlets for easy wire organization and threading.

The application discloses a double-layer bidirectional wind wheel, which comprises a body and a plurality of blades arranged on the body, wherein each blade is formed as an arc-shaped wind collecting surface, and each blade comprises a first blade and a second blade arranged along the height direction of the wind wheel, and the wind collecting surface of the first blade is arranged reversely to the wind collecting surface of the second blade. The application further discloses a double-layer bidirectional fan shell and a double-layer bidirectional fan comprising the wind wheel and the fan shell. The double-layer bidirectional wind wheel, the fan shell and the fan of the application can realize bidirectional air outlet, and the air outlet is uniform and pressure balanced. Meanwhile, the wind energy loss is small, and the efficiency is high.