94results about How to "Increase the ventilation area" patented technology

The surface cleaning equipment comprises a surface cleaning device and a base, the surface cleaning device comprises a dirt suction system and a ground brush with a dirt suction opening, the dirt suction system comprises a dirt containing barrel and a dirt suction fan, a cleaning assembly is arranged on the ground brush, the surface cleaning device is placed on the base, and the dirt suction fan is arranged on the base. A ventilation gap is formed between the base and the outer surface of the cleaning assembly, the ventilation gap extends in the direction of the dirt suction opening and is communicated with the dirt suction opening to form an air suction path, the area of the cleaning assembly located in the air suction path is Sj, the surface area of the cleaning assembly is S, and Sj is larger than or equal to 0.5 S. Due to the fact that the area of the cleaning assembly located in the air suction path is large, the area of the cleaning assembly located in the air suction path is larger than or equal to Sj. Under the action of the dirt suction motor, the airflow flows through the air suction path to take away moisture on the hair clusters of the cleaning assembly on the air suction path, so that water vapor on the surface of the cleaning assembly is separated, the drying efficiency is improved, the drying effect is improved, meanwhile, more energy is saved, and the service life of the cleaning assembly is prolonged.

The invention discloses a tooth splicing type high-voltage and high-speed motor stator and a design method, the tooth splicing type high-voltage and high-speed motor stator comprises a stator yoke and stator teeth, the stator teeth are uniformly distributed along the inner circumference of the stator yoke, and a stator slot for installing a winding is formed between adjacent stator teeth; the stator teeth are of an axisymmetric structure, the side edge of each stator tooth comprises a first contour molded line, a second contour molded line, a third contour molded line and a fourth contour molded line which are sequentially arranged in the radial direction of the stator, and the first contour molded lines of the adjacent stator teeth form winding installation areas. According to the invention, the stator teeth are designed to be detachable through the splicing structure, the line insertion of the formed winding can be smoothly carried out in the winding installation area formed by the first contour molded line, the groove width of the customized teeth can be ensured, and the stator teeth can be conveniently inserted in the winding installation area formed by the first contour molded line. The cogging torque is reduced, and the rotor eddy current loss of the motor is reduced.

The invention discloses a ventilation-sound insulation integrated ultrathin metasurface grating and a using method thereof. The grating is composed of a perforated cover plate, a bottom plate, a plurality of slender cavities with different lengths formed by separating the perforated cover plate and the bottom plate through wall plates, and a peripheral grid-shaped ventilation area. According to the grille, the excellent broadband sound insulation performance can be achieved on the premise that the high ventilation quantity is guaranteed through a thin layer structure with the thickness as low as about 20 mm. The folded labyrinth resonance sound absorption units with gradient lengths are arranged in the non-ventilation area, broadband continuous sound absorption peaks can be generated, and sound absorption replaces sound insulation, so that broadband sound attenuation performance is obtained. Compared with an existing ventilation and sound insulation grille, the grille structure is thinner, larger in ventilation area and wider in working frequency band, the wide engineering application value of the grille structure is shown, a light-weight and low-frequency broadband noise reduction solution is provided for mechanical equipment such as airplanes, warships, high-speed rails and automobiles, and the mechanical equipment can be widely applied to mechanical equipment such as the airplanes, the warships, the high-speed rails and the automobiles. And the method also has wide application prospects in ventilation and sound insulation systems in green buildings.

The invention provides a water supply control method and device, clothes treatment equipment and a storage medium, and the method comprises the steps that first water supply treatment and second water supply treatment are executed based on a clothes treatment instruction, and the first water supply treatment is located before and / or after the second water supply treatment, the first water supply treatment comprises the step of supplying water to a clothes containing device of the clothes treatment equipment through a first water supply pipeline, the first water supply pipeline communicates with the clothes containing device through an air outlet channel of the clothes treatment equipment, and a filter screen used for filtering airflow in the drying treatment process is arranged in the air outlet channel; the second water supply treatment comprises supplying water to the clothes accommodating device through a second water supply pipeline, and the second water supply pipeline is communicated with the clothes accommodating device through a clothes treating agent box of the clothes treating equipment. According to the technical scheme, the filter screen is cleaned before and / or after water is supplied for clothes treatment, the ventilation area of the filter screen is increased, and the drying effect in the clothes treatment process can be effectively improved.

The invention relates to the technical field of clothes treatment, in particular to clothes treatment equipment. The problems that an existing thread scrap filtering device is prone to causing air duct blockage, the drying efficiency is reduced, and then the user experience is affected are solved. Therefore, the clothes processing equipment comprises a box body, a drum door pivotally connected with the box body, a thread scrap removing device, an outer drum, an inner drum and a drying air duct, the outer drum, the inner drum and the drying air duct are arranged in the box body, the thread scrap removing device is installed on the drum door and located on the inner side of a window screen of the drum door, and under the condition that the drum door is closed, the thread scrap removing device can remove thread scraps. The thread scrap removing device is located in the box body and abuts against and is spliced with the front air duct of the drying air duct, so that the front air duct communicates with the inner barrel through the thread scrap removing device; and the thread scrap removing device is arranged to be capable of filtering the drying airflow flowing from the inner barrel to the front air duct so as to separate thread scraps in the drying airflow and collecting the thread scraps. The clothes processing equipment is high in drying efficiency and good in user experience.

The invention discloses low-carbon environment-friendly intelligent air conditioning equipment, and relates to the technical field of intelligent air conditioning equipment, the low-carbon environment-friendly intelligent air conditioning equipment comprises an air conditioning assembly, an adjusting mechanism is mounted on the side surface of the air conditioning assembly, an air supply mechanism is fixedly connected to the end part of the adjusting mechanism, and a temperature detection mechanism is mounted on the side surface of the air supply mechanism. In the using process, data analysis and processing are conducted on the temperature collected by the temperature detector through the intelligent control system, and the regional temperature is adjusted by adjusting the adjusting mechanism and the air supply mechanism according to the temperature difference of all regions; for example, when a temperature detector in one area detects that the temperature of the area is higher than the refrigerating temperature of the other area, the rotating speed of a second servo motor in a first connecting pipe in the area with the low temperature and the rotating speed of a third servo motor in an air outlet pipe in the corresponding area are reduced; and meanwhile, the rotating speed of the second servo motor and the rotating speed of the third servo motor in the high-temperature area are increased, and therefore more cold airflow is guided to the high-temperature area.

The utility model discloses four-season universal riding sport pants, and relates to the technical field of riding equipment. In the breathable pants body, the front surface of a pants body part is provided with a first breathable hole structure and a second breathable hole structure which are vertically arranged at an interval, the first breathable hole structure extends to the corresponding knee position of the pants body part from the upper end of the pants body part, and the second breathable hole structure extends to the corresponding knee position of the pants body part from the pants leg position of the pants body part. The rear surface of the trouser body part is provided with a third air hole structure extending from the trouser leg position of the trouser body part to the middle crotch line position of the trouser body part. The windproof trouser body sleeves the breathable trouser body to shield all the breathable hole structures, the upper end of the windproof trouser body is connected with the bottom of the trouser waist part through a first zipper, and the outer surface of the windproof trouser body is a waterproof surface; the breathable pant body is sleeved on the warm-keeping pant body, and the upper end of the warm-keeping pant body is connected with the bottom of the pant waist part through a second zipper. The utility model has good ventilation, heat dissipation, waterproof and windproof effects and good wearing comfort, and can be used in four seasons.

The utility model relates to the technical field of composite screen cloth, and discloses high-breathability composite screen cloth which comprises a skin-friendly layer, a sweat absorption layer, a screen cloth layer, a supporting layer, an elastic layer, a breathable layer and a wear-resistant layer which are sequentially arranged from bottom to top. The supporting layer is provided with a plurality of uniformly distributed supporting blocks; a plurality of supporting columns are arranged on the supporting layer at intervals; the supporting column penetrates through the elastic layer, and the two ends of the supporting column abut against the breathable layer and the screen cloth layer respectively; the supporting column is provided with a transverse air channel, the supporting column is further provided with a plurality of vertical air channels vertically communicated with the transverse air channel, the vertical air channels penetrate through the two ends of the top and the two ends of the bottom of the supporting column, through holes are formed in the positions, corresponding to the supporting column, of the skin-friendly layer, and air holes are formed in the positions, corresponding to the supporting column, of the wear-resisting layer. The breathable antibacterial fabric is good in breathability and has antibacterial performance.

The present invention discloses a projector with a screen frame having high heat dissipation capability, the projector comprising a projector housing and a screen frame housing arranged inside the projector housing, the screen frame housing being connected to a heat exchanger, and the two sides of the heat exchanger are respectively a secondary heat dissipation channel and a primary heat dissipation channel. The top of the primary heat dissipation channel is located in the same closed chamber as the air inlet of an internal circulation fan through an air outlet; the air outlet of the internal circulation fan is connected to one end of the internal circulation channel, the other end of the internal circulation channel is connected to the primary heat dissipation channel, and a display device connected to the primary heat dissipation channel is arranged inside, and a Fresnel lens and a heat-insulating glass are arranged on both sides of the display device, respectively; and together with the primary heat dissipation channel, a closed chamber is formed; the internal circulation channel passes through the display device body and forms a top channel and a bottom channel along the airflow direction, and a convex piece is arranged on the surface of the channel, and the height of the convex piece is 1 / 6-1 / 3 of the height of the display device.

The utility model discloses a ventilation module of a tank container and the tank container, comprising a ventilation pipe connected to a ventilation port of the tank container; the ventilation head is arranged at one end, far away from the ventilation opening, of the ventilation pipe; the ventilation head is provided with a head pipe body connected with the ventilation pipe, a cover body covering the upper end of the head pipe body and a filter screen located in the head pipe body. The cover body is provided with an upwarp part located on the periphery, and a ventilation opening is formed between the upwarp part and the head pipe body. When the volume of an oil product in the tank box changes, air can enter and exit from the tank box through the vent pipe via the vent hole of the vent head, so that the balance of air pressure inside and outside the tank box is effectively maintained, and the problems of tank box deformation, difficult oil inlet or unsmooth oil outlet caused by abnormal air pressure are avoided; and safe and stable operation of the tank is ensured. The filter screen is arranged in the ventilation head, dust, impurities and other particles in air can be filtered out in the process that the air enters and exits the tank box, the particles are prevented from entering the tank box to pollute oil products, the quality of the oil products is guaranteed, and the impurities are prevented from damaging oiling equipment and oiled machinery.

The invention relates to the technical field of humic acid fertilizer preparation, in particular to a humic acid fertilizer preparation method and equipment, the equipment comprises a bottom plate and a pile body box for containing pile body raw materials, a material turning mechanism is arranged above the bottom plate, the material turning mechanism comprises a transverse seat, two electric telescopic rods are fixedly connected to the bottom of the transverse seat, and the bottom of the transverse seat is fixedly connected with the bottom of the electric telescopic rods. L-shaped plates are fixedly connected to the output ends of the electric telescopic rods, rotating rods are rotationally connected to the inner walls of the sides, away from each other, of the two L-shaped plates, and a cylinder is fixedly connected to the rear end of the rotating rod on the front side. In the fermentation process, pile raw materials can be turned over and ventilated in time, the pile raw materials can be forcibly filled with air in the turning-over process through the turning-over plate, gaps of the pile raw materials can be filled with the air, the compactness of a pile is reduced, and the fermentation efficiency is improved. The ventilation effect, the ventilation area and the ventilation area in the raw materials of the pile body are greatly increased, the materials can be uniformly fermented, and the fermentation efficiency is improved.

The invention belongs to the technical field of windows, particularly relates to a coaxial linkage rotating suspended sash window, and aims to solve the problems that an existing glass connecting piece is insufficient in stability, affects the attractiveness of the whole window during folding and cannot effectively isolate mosquitoes, the following scheme is provided: the coaxial linkage rotating suspended sash window comprises a frame body, a ventilation hole is formed in the frame body, and two window frames are arranged in the ventilation hole; three layers of hollow glass are fixedly embedded in each of the two window frames; the device further comprises two rotating concentric shafts, the two rotating concentric shafts are fixed to the sides, close to each other, of the two window frames correspondingly, the same coaxial shaft rotationally penetrates through the two rotating concentric shafts, and a round hole is formed in the coaxial shaft. The stability of the window frame during folding or unfolding can be improved through cooperation of the fixing shaft and the sliding groove, cooperation of the track groove and the coaxial shaft and cooperation of the pin rod and the pin groove, in addition, the screen window can be pulled out of the containing cavity when the window frame is folded, and outside mosquitoes are prevented from entering a room.

The present invention relates to an exhaust device, and in particular to a quick exhaust device for a silo, the quick exhaust device for a silo comprising: a filter assembly, the filter assembly comprising a filter element and a breathable cloth; the inner cavity of the filter element is communicated with the inner cavity of the silo, and the filter element is provided with a first exhaust hole that communicates with the air inside and outside the filter element; the breathable cloth is sleeved on the outside of the filter element, and the breathable cloth is sealed and connected to the outer wall of the filter element, and the first exhaust holes are all located inside the breathable cloth; an outer cover assembly, the outer cover assembly is located outside the filter assembly, the outer cover assembly comprises a shell and a partition member, and the shell is provided with a first downward opening; the partition member is arranged between the filter assembly and the first opening of the shell, and the partition member is provided with a second exhaust hole. The outer cover assembly is arranged outside the filter assembly of the present invention, which can effectively prevent dust from being sprayed into the air with the airflow, and is safe and hygienic.

The utility model discloses a solid insulation cabinet, which comprises a solid insulation cabinet main body, the bottom end of the solid insulation cabinet main body is fixedly connected with a bottom plate, the solid insulation cabinet main body is provided with an auxiliary mechanism used for increasing the internal ventilation area of the solid insulation cabinet main body, the auxiliary mechanism comprises an auxiliary plate, and the auxiliary plate is arranged at the side part of the solid insulation cabinet main body in a sliding manner. A ventilation groove is formed in the side portion of the solid insulation cabinet body, the auxiliary plate is used for opening and closing the interior of the ventilation groove, the bearing plate is located on the side of the auxiliary plate, and the mounting plate is slidably arranged on the bearing plate. According to the solid insulation cabinet, the auxiliary plate, the ventilation slot, the bearing plate, the mounting plate, the fixing rod and the operation plate are matched with one another, the ventilation slot enables the inner cavity of the solid insulation cabinet main body to be communicated with external air, and the auxiliary plate opens and closes the inner cavity of the ventilation slot; and therefore, the inner cavity of the ventilation slot can ventilate the interior of the solid insulation cabinet main body.

The utility model relates to the technical field of clothes processing equipment, in particular to a fan and drying equipment comprising the fan, and aims to solve the problem that an existing fan is poor in air outlet uniformity. Therefore, the fan comprises a volute, an impeller and a motor, the impeller is arranged in the volute, the motor is used for driving the impeller to rotate, an exhaust inlet and an exhaust outlet are formed in the volute, the exhaust outlet comprises a first edge and a second edge which are oppositely arranged in the first direction, the first direction is perpendicular to the axial direction of the fan, and the second direction is perpendicular to the axial direction of the fan. The first edge in the first edge and the second edge is closer to the rotating axis of the impeller, and the cross section of the first edge is in the shape of a circular arc which is arched towards the direction close to the second edge. The first edge of the air outlet of the fan is arranged to be the arc surface, so that the air resistance is reduced, and the air outlet uniformity of the fan is improved.

The water-absorbing textile fabric comprises a decorative surface layer, a breathable layer, a water-absorbing layer, an antibacterial layer and a skin-friendly layer which are sequentially arranged from top to bottom, a plurality of breathable grooves are formed in the surface of the end, close to the decorative surface layer, of the breathable layer, a water-absorbing strip is arranged in the water-absorbing layer in a clamped mode, and the two ends of the water-absorbing strip are arranged in the water-absorbing layer. The middle position of the water absorption strip penetrates through the antibacterial layer and the skin-friendly layer. A large amount of sweat generated by sports is timely adsorbed into the water absorption layer through the water absorption strips and then volatilized outwards through the breathable layer, and the breathable grooves formed in the breathable layer not only can enhance breathability, but also increase the breathable area, and sweat in the water absorption layer can be volatilized outwards at a higher speed.

A vertical downward mechanical mining process for a steeply inclined coal seam specifically comprises the following steps: (1) arranging a vertical downward mining working face in the length direction of a mining line, and respectively arranging an air return vertical shaft and a transportation vertical shaft at two ends of the working face; (2) supporting a top plate and a bottom plate of a working surface by using a flexible gate-type hydraulic support; (3) arranging one or more coal slipping holes in the middle of the working face according to conditions; and (4) two sets of coal mining transportation equipment are arranged on the working face, the two sets of coal mining transportation equipment cut coal in a back-to-back mode, and the coal of the whole working face is completely mined. According to the whole mining system, mechanical and intelligent mining equipment is adopted, the production efficiency is high, the production capacity is large, the umbrella-shaped flexible door type hydraulic supports can stably support a top plate and a bottom plate of the working face, the working face is large in ventilation area, safe and reliable, the supports do not need to be frequently disassembled and assembled in the propelling process of the working face, the labor intensity of workers can be greatly relieved, and the working efficiency is improved. The production efficiency is improved.

This utility model discloses a biomimetic breathable flowerpot, relating to the field of flowerpot technology. It includes a pot body with side walls and multiple circumferentially oriented air vents. A honeycomb biomimetic drain tray is located at the bottom of the pot body, with multiple honeycomb drain holes and honeycomb air guide holes on its sidewalls. A biomimetic base is located at the bottom of the honeycomb biomimetic drain tray, including a base side wall with multiple circumferentially oriented drainage holes. An air vent adjustment mechanism is located at the top of the biomimetic base and is fitted onto the outside of the honeycomb biomimetic drain tray. This utility model, by incorporating a honeycomb biomimetic drain tray, achieves both rapid drainage and efficient air permeability while maintaining structural stability. The hexagonal honeycomb structure of the honeycomb possesses the characteristics of "high strength, lightweight, and porosity," resulting in good uniformity of airflow within the pot, increased air permeability, and significantly improved drainage speed.

The present invention discloses a coil and an assembly method. A coil includes a coil body, an upper end hoop, a lower end hoop and an inner support plate. The upper end hoop and the lower end hoop constitute a first axial tensioning structure, and the inner support plate is used to tension the inner circumference of the coil body and form a heat dissipation channel. An assembly method for the coil includes the following steps: the coil body is wound; the inner support plate is placed in the middle of the inner circumference of the coil body; the upper end hoop and the lower end hoop are respectively fixed to the upper end and the lower end of the coil body; wherein the upper end hoop and the lower end hoop are respectively provided with a second radial tensioning structure for tensioning the long side of the coil body. Based on this, both axial tensioning force and radial tensioning force are provided, and the inner support plate is cooperated to fully support the coil body, effectively solving the noise and temperature rise problems.

The invention discloses a rotor magnetic pole structure of a permanent magnet wind driven generator, relates to the technical field of generator magnetic circuit parts, and aims to solve the problems that the magnetic density of a rotor yoke ring is large and the damage probability of an iron core is increased due to the fact that the contact area of a rotor punching sheet and the rotor yoke ring is small in the background technology. Comprising a mounting ring, a rotor yoke ring and a plurality of connecting frames, T-shaped grooves distributed at equal intervals are formed in the outer wall of the rotor yoke ring, connecting mechanisms distributed at equal intervals are arranged on the outer wall of the rotor yoke ring, and each connecting mechanism comprises two rotor pressing plates, two first sliding blocks fixedly arranged on the outer walls of the bottoms of the two rotor pressing plates respectively and two pull rods. The contact area of the rotor punching sheet and the rotor yoke ring can be increased, and the magnetic density of the rotor yoke ring can be reduced, so that the rotor iron loss can be reduced, the deformation of the outermost edge of the rotor punching sheet can be reduced, the ventilation area between the rotor magnetic pole sections can be increased, the temperature rise can be reduced, and the magnetic poles can be quickly assembled.

According to the technical scheme, the flip type ventilator with the double air doors is characterized by comprising a ventilation frame, a panel, an elastic hinge piece, the air doors and a limiting piece; one end of the panel is hinged to the end, away from the air opening, of the ventilation frame. One end of the elastic hinge piece is hinged with the other end of the panel, and the other end is hinged with the ventilation frame; a buckling piece is arranged at the end, close to the elastic hinge piece, of the panel. The ventilation frame is provided with clamping feet which can be connected with the buckling and locking pieces in a clamped mode. A transverse shaft is arranged at the tuyere; the air door is rotatably arranged on the transverse shaft and is arranged in the air opening; the air door is wider than the air port; the limiting piece is arranged on the inner side of the end, away from the elastic hinge piece, of the panel. The overall structure is convenient to install and stable, and the water tightness, the air tightness and the wind pressure resistance of the ventilator are greatly enhanced through the design of the double air doors; the double-air-door design increases the ventilation area and increases the ventilation volume of the ventilator.

The embodiment of the utility model relates to a gas thermal desorption device and a gas collection thermal desorption system. The gas thermal desorption device comprises a heating structure, a sleeve and a supporting piece, the supporting piece is provided with a supporting face for supporting the sleeve, the sleeve is erected on the supporting face, and a heat dissipation space is formed between the sleeve and the bottom wall of the supporting piece. The sleeve is provided with a containing cavity used for containing an adsorption pipe for adsorbing sampling gas. The heating structure is located in the containing cavity and wraps and is attached to the outer wall face of the adsorption pipe so as to heat the sampling gas in the adsorption pipe. In other words, the heating structure is matched with the adsorption tube in a direct heat transfer manner, so that the adsorption tube is rapidly heated by the heating structure, the sampling gas adsorbed in the adsorption tube is rapidly heated, and the heating efficiency is improved. Meanwhile, a heat dissipation space is formed between the bottom walls of the sleeve supporting pieces, so that the ventilation effect of the sleeve supporting pieces is improved, heat is rapidly released outwards, and rapid cooling of the adsorption pipe is achieved.

The utility model relates to an integrated ventilation valve for an automobile electric control device, which comprises a top cover, a base and a ventilation film, the ventilation film is arranged between the top cover and the base, a ventilation hole is opened and closed in the middle of the base, a cross-shaped supporting plate is arranged in the middle of the ventilation hole, and pins are uniformly distributed on the outer circumference of the lower surface of the base. The lower ends of the pins are provided with fixing blocks protruding outwards. A fixing boss is arranged on the outer side of the upper end of the base, a fixing groove capable of being matched with the fixing boss is formed in the top cover, and the breathable film is installed between the upper surface of the fixing boss and the upper top wall of the fixing groove in a pressed mode. The top cover and the base are integrally formed, and the breathable film is implanted in the forming die, so that the processing period is short, and the cost is low; the cross-shaped supporting plate can better support the breathable film and prevent foreign objects from easily puncturing the breathable film; the ventilation surface area of the ventilation film can be increased through the grooves and the ventilation grooves in the cross-shaped supporting plate; and the ventilation valve is more convenient to install through the guide columns.

The utility model relates to the technical field of bolts or fixed connection devices which are used for wing sashes and specially suitable for doors or windows, and discloses a push-pull type broken bridge aluminum alloy window which comprises a window frame, two lower sliding clamping grooves are integrally formed in the bottom wall of the window frame, and the two lower sliding clamping grooves are arranged in a left-right mode. Two upper sliding clamping grooves are integrally formed in the top wall of the window frame, the two upper sliding clamping grooves are arranged left and right, two sliding frames are slidably connected to the interior of the window frame, lighting glass is fixedly connected to the inner surfaces of the two sliding frames, the two sliding frames are symmetrically arranged front and back, and the front sliding frame and the rear sliding frame are arranged left and right. Sealing gaskets are fixedly connected to the front wall and the rear wall of the window frame, rotating mechanisms are arranged in the two sliding frames, in this way, the two glass windows are opened when rapid ventilation is needed, then the ventilation area of the push-pull type broken bridge aluminum alloy window is increased, and then the ventilation efficiency is improved.

A gauge pressure sensor comprises a housing with a mounting cavity formed inside, the housing comprises a lower housing and a cover body buckled on the lower housing, and the lower housing and the cover body are in sealed connection; the lower shell is provided with a medium guide hole for guiding a medium to be detected into the mounting cavity; a ventilation channel communicated with the environment is formed in the cover body, so that the mounting cavity is communicated with the environment; the pressure sensitive element is hermetically plugged in the medium guide hole so as to receive the pressure of the medium to be measured and generate a corresponding electric signal; the inner surface of the cover body integrally extends downwards to form the rib plate, and one end of the inner side of the ventilation channel is communicated to the mounting cavity from at least one mounting surface formed on the surface of the rib plate; the at least one first waterproof breathable film is correspondingly adhered to the mounting surface; the rib plate is arranged, and the first waterproof breathable film is also attached to the mounting surface of the rib plate, so that the structural strength of the cover body is enhanced, and a better waterproof effect is achieved.

A portable integrated outdoor power supply device convenient for a micro base station to use comprises a power supply box, a battery jar is arranged in the power supply box, at least one mounting rack is fixedly mounted in the battery jar, a cooling liquid pipe is arranged in the battery jar, the cooling liquid pipe is fixed on each mounting rack, and the cooling liquid pipe is fixed on the mounting rack. Cooling liquid flowing circularly is arranged in the cooling liquid pipe; a cooling chamber is further formed in the power box, a water tank and a water pump are fixed in the cooling chamber, the water tank is fixedly communicated with one end of the cooling liquid pipe, and the water pump is fixedly communicated with the other end of the cooling liquid pipe; a composite heat dissipation assembly is also arranged on the cooling chamber, the composite heat dissipation assembly comprises heat dissipation fins evenly fixed to the inner wall of the cooling chamber, and the cooling liquid pipe in the cooling chamber is wound between the heat dissipation fins in a bent shape, so that the heat dissipation fins are cooled, and the heat dissipation area is enlarged in a large range.

The utility model discloses a sealing air valve structure. According to the scheme, the valve comprises a valve body, a valve blade assembly and an actuator, and is characterized in that a blocking wing in the valve body is vertically arranged on a limiting layer, and the actuator drives the valve blade assembly to rotate under pushing of a transmission assembly. According to the blocking fin, the problem that gaps exist in the side face when the valve blade assembly is completely scattered in the prior art is solved, the air valve structure can be completely sealed in the closed state, and the rotation angle of the valve blade assembly is limited; according to the valve blade assembly provided by the scheme, the multiple layers of valve blades are stacked, the shielding area of each blade is reduced, the ventilation area is increased, meanwhile, the valve blades are tighter, and the sealing performance is higher.

The invention relates to the technical field of informatization data transmission, and discloses a hydraulic engineering informatization data transmission device which comprises a transmission end shell, a transmission structure and a turnover assembly. The transmission structure comprises an upper cover plate, a turning frame plate, a circuit board, a turning plate, a ventilation plate and a fan, the upper cover plate is fixedly connected to the upper portion of the transmission end shell, the turning frame plate is rotatably connected to the inner side of the edge of the upper cover plate, the circuit board is fixedly connected to the interior of the transmission end shell, the turning plate is rotatably connected to the inner side of the upper cover plate, and the ventilation plate is rotatably connected to the inner side of the ventilation plate. The ventilation plate is fixedly connected to the front side face of the overturning plate, the fan is fixedly connected to the bottom face of the overturning plate, the spring piece is arranged on the bottom face of the overturning frame plate, the buckle block is fixedly connected to the surface of the upper cover plate, the swing plate is fixedly connected to the side face of the overturning frame plate, and the arch pushing plate is slidably connected to the interior of the transmission end shell. The device has the characteristics of high practicability and capability of preventing data transmission heat collection overload.

The utility model discloses a kind of CANopen master station conversion profinet gateway's device, including gateway main body, heat dissipation component is arranged on the bottom wall of the gateway main body, the heat dissipation component includes the through cavity being opened on the bottom wall of the gateway main body, both ends in the through cavity are equipped with winding box.Affinity effect is in that: the utility model is equipped with heat dissipation component, during the use of gateway main body, servo motor drives screw rotation, and then make movable plate reciprocatingly move in through cavity under the action of screw block and guide block, on the one hand, the position of radiating fan can be changed, and then increase its heat dissipation range, on the other hand, two sides screen window net can be stretched or compressed, and screen window net can be always laid in through cavity under the action of winding shaft and scroll spring, and then increase its ventilation area, the combination of both, gateway main body inside can be efficiently heat-dissipated, guarantee its heat dissipation effect and use performance.