32results about How to "Reduce mutual impact" patented technology

The invention discloses transformation static curing equipment for foods and a curing method thereof. A pressure regulation device which is capable of increasing or decreasing pressure in a curing pot is connected onto the curing pot; by utilizing pressure change in the curing pot, the materials to be cured are cured; particularly, when the curing pressure in the curing pot changes from negative pressure to positive pressure, the impact of the curing liquid entering into the materials to be cured is enlarged, so that the speed of the curing liquid permeating into the tissues of the materials to be cured is accelerated, the curing efficiency is improved and the requirements of the production process are satisfied. Moreover, the curing pot is designed into a double-layer structure of a latticed inner cylinder, and latticed separation plates are added in the inner cylinder to divide the inner cylinder into a plurality of communicated curing units, so that the structural strength of the curing pot is effectively improved, the extrusion between the materials to be cured can be decreased and the integrity of the cured materials is kept.

The invention relates to the field of a microgrid, and particularly to a soft start operating system and method for a parallel energy storage inverter. A main inversion unit sends a soft start instruction to a secondary inversion unit according to a frequency signal, an amplitude signal and a phase signal of the output voltage of the main inversion unit; and the secondary inversion unit performs droop control according to the soft start instruction based on the received frequency signal and the amplitude signal to enable the frequency and the amplitude of the output voltage of the secondary inversion unit to be basically the same with that of the output voltage of the main inversion unit. By adoption of the technical scheme, the parallel operation soft start function can be realized in the off-network output of multiple energy storage inverters; the impact to the microgrid load can be lowered; and the parallel operation reliability and the load-bearing ability of the inverter under an island model can be improved.

An improved type head press type one-time blood collecting device comprises a casing, a pin core, a spring and a push ejection device, and an elastic clamp used for clamping and locking the pin core is arranged in the casing; the device is characterized in that a yielding space is formed in the tail end of the elastic clamp in a lateral opening direction; a stop block and an inclined surface are arranged on the push ejection device; in a locking state before ejection, the stop block occupies the yielding space so as to limit the lateral opening amplitude of the elastic clamp; during press ejection, the pushing device moves back and forth in the casing and drives the stop block to leave the yielding space, at the same time, the inclined surface of the push ejection device forces an elastic claw to open laterally, and the pin core is guided to produce ejection puncture. According to the improved type head press type one-time blood collecting device, the allowed opening amplitude of the elastic clamp is controlled by controlling the side yielding space, and finally, the reliability whether the pin core breaks away from clamping of the elastic clamp can be effectively controlled. The mechanism reliability problem caused by clamping force of the elastic clamp in a blood collecting device ejection mechanism and the problem between the use and the hand feeling are solved.

The invention discloses a triangular rhombus bag packaging machine, which comprises a rack member, a film support member, a film conveying member, a bag former member, a longitudinal sealing member and a transverse sealing member, wherein the film support member, the film conveying member, the bag former member, the longitudinal sealing member and the transverse sealing member are sequentially installed on the rack member in accordance with the motion direction of the film; the longitudinal sealing member is installed below the bag former member; the transverse sealing member is installed below the longitudinal sealing member; the transverse sealing member comprises a transverse sealing device and a rotational device connected with the transverse sealing device; the rotational device comprises a worm gear pair and a speed reduction device; the speed reduction device comprises a reduction gearbox, a turbine installed inside the reduction gearbox and meshed with the worm gear pair and a reduction gearbox upper cover arranged at the top of the reduction gearbox; the transverse sealing member is installed on the reduction gearbox upper cover; and the worm gear pair is connected with a motor. The triangular rhombus bag packaging machine is simple in structure and capable of packaging triangular rhombus bags and providing a maximum printing pattern area according to demands.

The invention discloses a novel packing machine which comprises a frame, a film delivery mechanism, a bag forming mechanism, a longitudinal seal mechanism and a transverse seal mechanism. According to the movement direction of a film, the film delivery mechanism, the bag forming mechanism, the longitudinal seal mechanism and the transverse seal mechanism are orderly arranged on the frame; the bag forming mechanism is arranged at the upper part of the longitudinal seal mechanism; and the longitudinal seal mechanism is arranged at the upper part of the transverse seal mechanism. The transverse seal mechanism consists of a transverse seal sealing mechanism and a lifting mechanism; and the lifting mechanism comprises an upper transverse seal connecting plate and a lower transverse seal connecting plate, a guide shaft fixed on the upper and lower transverse seal connecting plates, and a base plate fixed on the guide shaft. The guide shaft is provided with a slip line bearing block. The base plate is connected with the transverse seal sealing mechanism. The novel packing machine is used for packing fragile items, and the operation is stable, continuous and efficient.

The treating box with power input buffer includes one powder bin with carbon powder, carbon powder stirrer and magnetic roller in the power outlet; waste powder bin supporting one rotatable photosensitive drum for receiving light signal to generate latent image; one charge roller to charge the photosensitive drum; and one cleaning scraper to eliminate the residual carbon powder on the surface of the photosensitive drum. The powder bin and the waste powder bin are hinged, the stirrer and the magnetic roller accept the driving force from the photosensitive drum via gear line, and the photosensitive drum has one elastic torque accepting part in its one end. In the time the treating box is started to generate maximum instant impulse, the elastic torque accepting part will deform to remit the impact.

The invention discloses a blade transport device. The blade transport device comprises a driving drum and a driven drum, wherein a conveyor belt is wound around the driving drum and the driven drum. A transfer device is arranged at one end of the conveyor belt and comprises a transfer pallet. The transfer pallet is composed of a flat plate and an arc-shaped plate. The flat plate is obliquely arranged and connected with a positioning seat through a tension spring. The arc-shaped plate is connected with a rotary ball through a supporting rod. The rotary ball is arranged in a ball fixing seat. Blades are conveyed to the transfer pallet through the conveyor belt firstly and then accumulated on the arc-shaped plate. As the number of the blades on the arc-shaped plate is increased gradually, the transfer pallet turns over suddenly and returns to the original position under the effect of the tension spring after unloading the blades. By the adoption of the blade transport device, continuous noise generated when the blades fall off one by one is avoided effectively, and mutual impact between the blades is reduced.

The invention discloses a building drainage pipe fitting inner circumferential wall honing treatment structure. The building drainage pipe fitting inner circumferential wall honing treatment structurecomprises a honing body and a plurality of cushion blocks. A plurality of transition holes are formed in the two sides of the honing body. Adjusting pins are fixed to one sides of the cushion blocksand are in clearance fit with the transition holes. A fixing base is arranged on the other sides of the cushion blocks. Blind holes are formed in the two side walls of a groove correspondingly. A horizontal part body of oilstone is arranged in the groove, the two ends of a horizontal part of the oilstone are located in the blind holes, and rubber strips are arranged between the blind holes and thehorizontal part of the oilstone. An adjusting rod is arranged in the honing body in a sliding manner and provided with a plurality of conical protrusions. The movable ends of the adjusting pins are provided with inclination faces matched with outer circle faces of the conical protrusions. The mutual impacts between the oilstone and the fixing base are relieved through deformation or deformation recovery of the rubber strips in the running process, accordingly relative displacement between the fixing base and the oilstone is prevented, running synchronism of the fixing base and the oilstone isguaranteed, and the purpose of preventing oilstone damage is finally achieved.

The invention discloses a cylinder cooling device cleaning system using cooperation between acid liquid spraying and movable rotation. The cleaning system comprises a water inlet pipe, a stool, a water outlet pipe, a cylinder body, a quantity controller and a cleaning device; a tool bit stirs acid cleaning liquid during cleaning incrustations on the wall of the cylinder body; the tool bit is tightly bonded on the inner wall of the cylinder body during rotating to eliminate acid softened incrustations, and a cleaning brush is followed up for reciprocating brushing removal of few incrustation spots remained on the wall, so that the incrustations are removed more thoroughly; an U-shaped rotating plate and a cleaning soft brush clean a through hole when a T-shaped pipe is rotated; meanwhile, the through hole is the same with the bottom of the T-shaped pipe; during sucking, water currents generate an impact effect, so that mutual impacting of large-size incrustations is reduced, the extraction by a pump is convenient, and the blockage caused by larger size of the incrustations is prevented; a switch plate overcomes right-side sliding of a spring rod under the impact of the acid liquid to locate in an opened state; and when the acid liquid is stopped from spraying, the switch plate is pulled by the spring rod to locate in a closed state, so that the blockage caused by reverse fillingof the incrustations is prevented.

The invention relates to clamping jaw mechanism of a vertical packaging machine. The clamping jaw mechanism of the vertical packaging machine comprises a stroke part and a clamping part connected to the stroke part, and the stroke part drives the clamping part to move in the X-axis direction or the Y-axis direction; the stroke part comprises an X-axis moving assembly and a Y-axis moving assembly, the Y-axis moving assembly is connected to the X-axis moving assembly, and the clamping part is connected to the Y-axis moving assembly; and the clamping part comprises multiple second sliding groove bases, a limiting plate, multiple second sliding blocks, a connecting plate, a third sliding block and a supporting frame, wherein the second sliding groove bases and the limiting plate are connected to the Y-axis moving assembly, the second sliding blocks are connected to the second sliding groove bases in a clamped mode, the connecting plate is connected to the second sliding blocks, and the third sliding block and the supporting frame are connected to the connecting plate. According to the clamping jaw mechanism of the vertical packaging machine, bag bodies of different specifications can be clamped, adjustment can be conveniently conducted according to the actual specification of the bag bodies, and meanwhile, the clamping angle of the bag bodies can be adaptively adjusted in the packaging process, reciprocating movement can be conducted, and the purposes that the bag bodies are shaken, so that products in the bag bodies are densely stacked are achieved.

The present invention relates to one airflow generating structure and the device thereof. The airflow generating structure includes one setting part extending outwards from one end of the hub, and radial interval arranged spoilers in the edge of the setting part and with curved surfaces and inclined outside edge. The spoilers form a range greater than the setting part. Air is sucked in the end of the hub far from the setting part, made to flow to the other end, and blown out through the edge of the setting part.

The invention discloses a cooling method for a hot-pressing cast electronic ceramic blank. The cooling method comprises the following steps: arranging a conveying belt below a blank die outlet of a hot-pressing casting molding machine; putting a storage box which is good in leakproofness and provided with a top cover at one side, far away from the hot-pressing casting molding machine, of the conveying belt; making the hot-pressing cast electronic ceramic blank fall on the conveying belt and conveying the electronic ceramic blank to the upper portion of the storage box through the conveying belt; connecting an elastic rubber film between the outer walls of the two sides of the storage box; making the electronic ceramic blank fall on the elastic rubber film from the conveying belt; filling the storage box with cooling water which is at the temperature of 15 to 25 DEG C; and submerging the electronic ceramic blank into the liquid level of the cooling water. The cooling method disclosed bythe invention has the advantages of preventing the electronic ceramic blank from damages and stains caused by workers, protecting the electronic ceramic blank, accelerating evaporation and circulation of the cooling water, increasing the heat exchange speed of the electronic ceramic blank and the cooling water and shortening the cooling time of the electronic ceramic blank.

The invention discloses a honing head which comprises a honing body and a plurality of cushion blocks, wherein a plurality of transitional holes are formed in both sides of the honing body, adjusting pins are fixed on one side of the cushion blocks, the adjusting pins are in clearance fit with the transitional holes, fixed seats are installed on the other side of the cushion blocks, blind holes are respectively formed in both side walls of grooves, a main body of the horizontal part of an oil stone is arranged in the grooves, both ends of the horizontal part of the oil stone are arranged in the blind holes, and rubber strips are arranged between the blind holes and the horizontal part of the oil stone; an adjusting rod is arranged in the honing body in a sliding mode, a plurality of tapered bulges are installed on the adjusting rod, and inclined surfaces which are matched with the external circular surfaces of the tapered bulges are formed on the free ends of the adjusting pins. According to the honing head, mutual impact between the oil stone and the fixed seats is reduced through deformation or deformation recovery of the rubber strips during operation, so as to prevent relative displacement between the fixed seats and the oil stone, guarantee operation synchronization of the fixed seats and the oil stone, and finally achieve the purpose of preventing the oil stone from being damaged.

The invention discloses a polishing device for the inner peripheral wall of a drainage pipe, which includes a honing body and a plurality of pads, a plurality of transition holes are opened on both sides of the honing body, an adjusting pin is fixed on one side of the pad, and an adjusting pin is fixed on the other side of the pad A fixed seat is installed on one side, and a groove is opened on the fixed seat. Blind holes are respectively arranged on the two side walls of the groove. The main body of the horizontal part of the oilstone is placed in the groove and both ends of the horizontal part are placed in the blind holes. Inside, a rubber strip is set between the blind hole and the horizontal part of the oilstone; an adjusting rod is slid inside the honing body, and an inclined surface matching the protrusion is provided on the movable end of the adjusting pin, and a smooth circular surface and a cone are arranged on the protrusion. surface, and a transitional circular surface is provided at the junction of the smooth circular surface and the conical surface. The invention slows down the mutual impact between the oil stone and the fixed seat through the deformation or recovery deformation of the rubber strip during operation, so as to prevent the relative displacement between the fixed seat and the oil stone, ensure the synchronization of the two operations, and prevent the oil stone from being damaged. Purpose.

An improved head-pressing disposable blood collection device, including a shell, a needle core, a spring and a pusher, and an elastic clip is arranged in the shell to clamp and lock the needle core; There is a space for giving way in the direction of opening; there are stoppers and slopes on the pusher; in the locked state before launching, the stopper occupies the space for giving way to limit the lateral opening range of the elastic clip; when pressing to launch , the pusher moves backward in the shell, driving the stopper to evacuate the space, and at the same time, the slope of the pusher forces the elastic claws to open sideways, causing the needle core to be unhooked to produce a shooting puncture. The invention controls the allowable opening range of the elastic clip by controlling the size of the lateral clearance gap, and finally can effectively control the reliability of whether the needle core is detached from the elastic clip. The mechanism reliability and the problems between use and hand feeling caused by the clamping force of the elastic clip in the ejection mechanism of the blood collection device are solved.

The invention discloses a fan, an air-cooled cold storage plant and an air-cooled refrigerator, and relates to the technical field of the fan, and the fan, the air-cooled cold storage plant and the air-cooled refrigerator are invented so as to solve the problems that noise generated when the fan runs is big and the motor efficiency is low in the prior art. The fan disclosed by the invention comprises fan blades; each fan blade comprises a frame and a flexible blade body which is fixedly arranged in the frame, wherein the frame is made of a rigid material. The fan disclosed by the invention is used as an evaporator fan and a condenser fan in the air-cooled refrigerator, a fan of an air conditioner, and the like.

The invention relates to the technical field of optical lenses and provides a lens barrel, a lens module and an assembling method thereof. A first barrel wall provided with a light through hole, and asecond barrel wall which is bent and extends from the first barrel wall are included. The first barrel wall comprises an outer wall surface close to an object side, and the outer wall surface is provided with a groove used for being filled with a buffer gas. The lens barrel further comprises an air plug piece arranged in the groove, the buffer gas is sealed in the groove through the air plug piece, and the air plug piece can move relative to the lens barrel along an optical axis. According to the technical scheme, when the lens module is assembled, impact on the lens barrel can be absorbed bycompressing the buffer gas so that a deformation problem of the lens barrel in an assembling process is relieved, a mutual impact force between the lens barrel and the lens is further weakened, deformation of a lens assembly is relieved, technical problems that the lens is easily subjected to plastic deformation due to excessive impact and even possibly cracks when the lens is seriously impactedare solved, and meanwhile an assembling yield can be increased.

The invention discloses a treatment method for a high-cavitation peripheral pump impeller, and belongs to the field of peripheral pumps. The cavitation performance of a closed peripheral pump is effectively improved by welding buffering feather scales on the basis of an existing impeller, the buffering feather scales prevent liquid from being in direct contact with blade grooves, impact on the blade grooves due to bubble breakage is prevented, the blade is protected well, the V-shaped structure of the buffering feather scale plays a role in guiding the liquid entering and exiting from the blade grooves in the longitudinal vortex motion, so that the impact of the liquid can be effectively weakened, the energy loss is reduced to a certain extent, and the working efficiency is effectively improved; the impact buffering piece on the buffering feather scale intercepts and divides bubbles by utilizing a bubble retaining ball, gas in the bubbles enters a defoaming spherical shell through a breathable film, the bubble rate in liquid is effectively reduced, and the elastic force of an elastic horn on the impact buffering piece can absorb part of impact energy generated when the bubbles are broken; and the cavitation performance of the peripheral pump is effectively improved.

The invention relates to a miniature diaphragm pump upper end cover. The miniature diaphragm pump upper end cover comprises a cover body (1) covering a miniature diaphragm pump head, the cover body (1) is internally provided with a water inlet cavity (2) and a water outlet cavity (3), a water inlet pipe (4) and a water outlet pipe (5) are further arranged on the two sides of the cover body (1), the water inlet pipe (4) is communicated with the water inlet cavity (2), and the water outlet pipe (5) is communicated with the water outlet cavity (3). The miniature diaphragm pump upper end cover is characterized in that a water stopping plate (6) is arranged in the water outlet cavity (3) so that outlet water of the water outlet end of the miniature diaphragm pump head cannot directly enter the water outlet pipe (5). Compared with the prior art, the miniature diaphragm pump upper end cover has the beneficial effects that the structure is simple, the size is small, the weight is small, the number of parts is small, assembling is convenient, vibration attenuation and noise elimination can be achieved, the evacuation and self-suction capacity is strengthened, and the machining and installing cost can be greatly reduced.

The invention provides a gating system of an ultra-thin metal shell and relates to the technical field of forming of ultra-thin castings. The gating system comprises a straight gating channel, a transverse gating channel, inner gating channels and inner gating openings which are all connected in sequence, wherein the transverse gating channel extends to form the first inner gating channel and the second inner gating channel, the first inner gating opening and the second inner gating opening are formed in a cavity for forming the ultra-thin metal shell, the first inner gating channel is connected to the cavity through the first inner gating opening, the second inner gating channel is connected to the cavity through the second inner gating opening, two flows of molten metal enter the first inner gating channel and the second inner gating channel respectively, the first flow of molten metal sequentially flows through the first inner gating channel, the first inner gating opening and the thin wall area of the cavity, the second flow of molten metal sequentially flows through the second inner gating channel and the second inner gating opening, and the first flow of molten metal and the second flow of molten metal reach the converging area of the cavity at the same time. According to the gating system, the mold-filling capacity and the mold-filling stability of the molten metal can be improved, the defects of cold shut, gas involving, bubbling and the like can be effectively avoided, the yield of the product is improved, and meanwhile, the gating system is reasonable and simple in structure, easy to operate and low in machining cost.

The invention discloses a triangular rhombus bag packaging machine, which comprises a rack member, a film support member, a film conveying member, a bag former member, a longitudinal sealing member and a transverse sealing member, wherein the film support member, the film conveying member, the bag former member, the longitudinal sealing member and the transverse sealing member are sequentially installed on the rack member in accordance with the motion direction of the film; the longitudinal sealing member is installed below the bag former member; the transverse sealing member is installed below the longitudinal sealing member; the transverse sealing member comprises a transverse sealing device and a rotational device connected with the transverse sealing device; the rotational device comprises a worm gear pair and a speed reduction device; the speed reduction device comprises a reduction gearbox, a turbine installed inside the reduction gearbox and meshed with the worm gear pair and a reduction gearbox upper cover arranged at the top of the reduction gearbox; the transverse sealing member is installed on the reduction gearbox upper cover; and the worm gear pair is connected with a motor. The triangular rhombus bag packaging machine is simple in structure and capable of packaging triangular rhombus bags and providing a maximum printing pattern area according to demands.

The invention discloses a novel packing machine which comprises a frame, a film delivery mechanism, a bag forming mechanism, a longitudinal seal mechanism and a transverse seal mechanism. According to the movement direction of a film, the film delivery mechanism, the bag forming mechanism, the longitudinal seal mechanism and the transverse seal mechanism are orderly arranged on the frame; the bag forming mechanism is arranged at the upper part of the longitudinal seal mechanism; and the longitudinal seal mechanism is arranged at the upper part of the transverse seal mechanism. The transverse seal mechanism consists of a transverse seal sealing mechanism and a lifting mechanism; and the lifting mechanism comprises an upper transverse seal connecting plate and a lower transverse seal connecting plate, a guide shaft fixed on the upper and lower transverse seal connecting plates, and a base plate fixed on the guide shaft. The guide shaft is provided with a slip line bearing block. The base plate is connected with the transverse seal sealing mechanism. The novel packing machine is used for packing fragile items, and the operation is stable, continuous and efficient.

The invention relates to the field of animal husbandry equipment, in particular to a double-locking-sleeve curved bar neck yoke. The double-locking-sleeve curved bar neck yoke comprises a neck yoke body and double-locking-sleeve mechanisms. The neck yoke body comprises an upper transverse rod, a lower transverse rod, a plurality of bent rods arranged between the upper transverse rod and the lowertransverse rod, vertical rods and movable swing rods, wherein the vertical rods are fixedly connected with the upper transverse rod and the lower transverse rod, each bent rod is arranged between every two vertical rods, the bottoms of the bent rods are fixedly connected with the lower transverse rod, the tops of the bent rods are fixedly connected with the vertical rods on the bent sides, and themovable swing rods are hinged to the bent portions of the bent rods; each movable swing rod comprises a lower swing rod body and an upper inclined swing rod body; each double-locking-sleeve mechanismcomprises a first locking sleeve fixedly installed at the top of the corresponding movable swing rod and a second locking sleeve hinged to the upper portion of the first locking sleeve, a plurality of locking sleeve limiting plates are fixedly installed on the upper transverse rod, the locking sleeve limiting plates are provided with through holes and through grooves above the through holes, adjusting rods penetrate in the through holes, and a plurality of stopping blocks are fixedly installed on the adjusting rods. The double-locking-sleeve curved bar neck yoke is simple in structure, complete in function, reliable in locking and easy to adjust.

The invention discloses a sneaker insole and outsole structure. The sneaker insole and outsole structure comprises an insole support framework, an insole stabilizing piece and an outer wrapping layerand is characterized in that the insole support framework is divided into four sections and provided with a longitudinal support structure on the inner wall; the insole stabilizing piece is an 8-likepart with two mounting holes, the insole stabilizing piece is mounted on the inner side of the insole support framework in a sleeved manner to play a stabilizing role, and the insole stabilizing pieceis provided arched parts which can deform when the sole is bent; the outer wrapping layer is a hollow rubber part comprising an outsole part and an insole part, the outsole part is of a laterally connected split structure, and the insole part is of a hollow honeycomb structure; the mounted insole support framework and the insole stabilizing piece are jointly mounted into a mounting groove insidethe outer wrapping layer, and the outer sole structure of the wrapping layer is adhered to the outer sole side of the insole support framework. By the sneaker insole and outsole structure, exercisingprotection and performance can be improved.

The invention relates to the field of a microgrid, and particularly to a soft start operating system and method for a parallel energy storage inverter. A main inversion unit sends a soft start instruction to a secondary inversion unit according to a frequency signal, an amplitude signal and a phase signal of the output voltage of the main inversion unit; and the secondary inversion unit performs droop control according to the soft start instruction based on the received frequency signal and the amplitude signal to enable the frequency and the amplitude of the output voltage of the secondary inversion unit to be basically the same with that of the output voltage of the main inversion unit. By adoption of the technical scheme, the parallel operation soft start function can be realized in the off-network output of multiple energy storage inverters; the impact to the microgrid load can be lowered; and the parallel operation reliability and the load-bearing ability of the inverter under an island model can be improved.

The invention relates to a secure bearing ball feeding system which feeds balls from bottom to top. The system comprises a ball feeding preparation mechanism, a ball pushing-in mechanism, an outer ring pressure deformation mechanism and an inner ring centralizing and sheathing mechanism; wherein the ball feeding preparation mechanism and the ball pushing-in mechanism are arranged at the bottom ofthe bearing ball feeding system, and the outer ring pressure deformation mechanism and the inner ring centralizing and sheathing mechanism are horizontally arranged above the ball feeding preparationmechanism and the ball pushing-in mechanism. Due to the adoption of the work mode of feeding the balls from bottom to top, the entry, push-in-place and installation are carried out under the conditionthat the balls are completely controlled, the mutual collision of balls in the ball feeding process and the mutual excessive fraction in the shift process are reduced at utmost, thus being beneficialto guaranteeing the secure move of the balls and the surface smoothness of the balls as well as the assembly quality of the bearing products and the service life of the products, and having strong practicability.

The invention relates to a miniature diaphragm pump upper end cover. The miniature diaphragm pump upper end cover comprises a cover body (1) covering a miniature diaphragm pump head, the cover body (1) is internally provided with a water inlet cavity (2) and a water outlet cavity (3), a water inlet pipe (4) and a water outlet pipe (5) are further arranged on the two sides of the cover body (1), the water inlet pipe (4) is communicated with the water inlet cavity (2), and the water outlet pipe (5) is communicated with the water outlet cavity (3). The miniature diaphragm pump upper end cover is characterized in that a water stopping plate (6) is arranged in the water outlet cavity (3) so that outlet water of the water outlet end of the miniature diaphragm pump head cannot directly enter the water outlet pipe (5). Compared with the prior art, the miniature diaphragm pump upper end cover has the beneficial effects that the structure is simple, the size is small, the weight is small, the number of parts is small, assembling is convenient, vibration attenuation and noise elimination can be achieved, the evacuation and self-suction capacity is strengthened, and the machining and installing cost can be greatly reduced.

The present invention relates to one airflow generating structure and the device thereof. The airflow generating structure includes one setting part extending outwards from one end of the hub, and radial interval arranged spoilers in the edge of the setting part and with curved surfaces and inclined outside edge. The spoilers form a range greater than the setting part. Air is sucked in the end of the hub far from the setting part, made to flow to the other end, and blown out through the edge of the setting part.