43results about How to "Improve inflation efficiency" patented technology

The invention discloses a telescopic interception air bag device for concrete pouring high-low grade plates, and relates to the technical field of building construction, the telescopic interception air bag device comprises a stand column, structural beams are poured on two sides of the stand column, a pouring plate is fixedly mounted between the bottoms of a pair of structural beams, and a plate rib net is fixedly mounted between the pair of structural beams jointly; a plurality of interception air bags are clamped on the plate rib net, a telescopic rubber pipe is fixedly communicated between every two adjacent interception air bags, and an inflation assembly is further included; the effect of intercepting high and low labels of plates and wall columns is achieved, and the problem that although an existing air bag can achieve the effect of intercepting high and low labels of concrete, tools need to be used for auxiliary installation during installation due to the fact that no supporting component exists in the air bag when the air bag is installed or taken out, and the installation efficiency is low is solved.

The invention discloses a high-pressure and high-flow integrated inflator pump, and relates to the field of inflator pumps, the high-pressure and high-flow integrated inflator pump comprises an inflator pump shell, an air outlet, an air inlet, a high-flow pump, a motor, a high-flow air duct, a gear set, a high-pressure pump, a one-way valve and a two-in-one air flow channel, and the high-flow pump is connected with the high-flow air duct; the motor is arranged in the inflator pump shell, is arranged in the high-flow air duct and is communicated with the air inlet; one end of a motor output shaft is connected with the high-flow pump, and the other end is connected with the high-pressure pump through a gear set; the high-pressure pump is arranged in the inflator pump shell and is communicated with the two-in-one airflow channel; the high-flow air channel is communicated with the two-in-one air flow channel through a one-way When the high-flow pump and the high-pressure pump work, the motor is started, the air inlet sucks air, airflow provides high-flow inflation for an inflated object after passing through the high-flow pump, the high-flow air channel, the one-way valve, the two-in-one airflow channel and the air outlet, and the motor drives the gear set to decelerate and provides high-pressure inflation for the inflated object after passing through the high-pressure pump, the two-in-one airflow channel and the air outlet.

The utility model discloses a rescue air cushion convenient to carry, including box, air bag pad and movable board, the inside of box is provided with the cavity, and the one side of box is provided with the notched of being linked with the cavity, and the upper and lower both ends of notched inboard all are through the pivot respectively installed with roll axle no.

This invention provides an adaptive inflation control method and system for reusable liquid rocket cylinders. The adaptive inflation control method for reusable liquid rocket cylinders includes: automatically matching corresponding inflation parameters and safety thresholds based on acquired data from the onboard cylinders; performing a self-check on the ground-based gas supply system and establishing a rocket-ground safety interlock after the self-check passes; and performing segmented inflation control based on the matched inflation parameters and safety thresholds. The segmented control includes: initially inflating the cylinder at a preset constant flow rate or pressure; after the pressure reaches a first preset safety threshold, inflating at a first set flow rate or pressure; after the pressure reaches a second preset safety threshold, gradually reducing the inflation flow rate or pressure to smoothly approach the target pressure; and when the cylinder pressure approaches the target pressure, replenishing the cylinder with a second set flow rate to the target pressure and then closing the inflation valve. This application achieves the goal of improving inflation efficiency and lifespan.

The utility model discloses a measurable intestinal tract inflation device which comprises an inflator pump, a piston rod and an air inlet pipeline. The inflator pump is provided with an output end, the output end is provided with a control valve, and the inflator pump is further provided with an inflation cavity; the piston rod is arranged in the inflator pump in a sliding mode, compresses air in the inflation cavity through sliding, and inflates air through the output end. The air inlet pipeline is arranged on the outer side wall of the inflator pump, the air inlet pipeline communicates with the inflation cavity, and the air inlet pipeline is used for providing an air inlet channel for the inflation cavity. Air is fed through the air inlet pipeline, the intestines and stomach of a patient can be continuously inflated under the condition that the inflator pump and the gastrointestinal pipeline of the patient are not detached, infection in the gastrointestinal pipeline detaching and connecting process is reduced, meanwhile, the inflation efficiency is improved, and the inflation device has the advantages of being simple in structure and convenient and fast to operate.

The utility model is applicable to the technical field of shock absorbers, and provides a universal contact pin type inflating tool, which is used for inflating an oil cylinder and a piston rod and comprises a clamping tool, an inflating air chamber and an inflating pressure head, the inflating air chamber is mounted on the clamping tool, the inflating pressure head is pressed on the piston rod in a sleeving manner, and the inflating air chamber is a flexible inflating block; the flexible inflation block, the inflation pressure head, the oil cylinder and the piston rod are matched, clamped and sealed to form an inflation space, so that the inflation condition is met, and inflation operation of the piston rod and the oil cylinder is achieved. According to the universal contact pin type inflation tool, on one hand, the inflation efficiency and the inflation effect can be greatly improved, on the other hand, sealing inflation of piston rods and oil cylinders of different sizes can be effectively achieved through the action of the flexible inflation block, meanwhile, the piston rods of different diameters are pressed in a sleeving mode through the action of the inflation pressure head, and the inflation efficiency is greatly improved. Sealing and air inflation of the piston rod with the step and the oil cylinder can be achieved, and therefore the air inflation universality is effectively improved.

This invention discloses a novel hybrid power system, belonging to the field of engine technology, applicable to horizontally opposed engines. By optimizing the shapes of the cylinder head, intake manifold, and piston, airflow is guided to form a concentrated and powerful tumble flow. During the compression stroke, this creates a squeezing impact tumble flow, breaking it up before ignition and combustion, thus improving combustion efficiency. The crankcase has a skeleton structure, simplifying the manufacturing process and eliminating the need for mold casting. All components can be machined. The lubricating oil passages within the crankcase are formed by splicing oil passages from various components; short sections of the oil passages are easy to machine, and blockages are easily disassembled and cleared. A rocker arm simultaneously drives two intake valves, with equal distances from both valves to the rocker arm, allowing for simultaneous entry and exit of both valves. This provides good coordination, reduces wear and noise, and ensures good sealing.

The utility model relates to a kind of anti-explosion valve quick inflation tool, including base and inflation pipe, base is C-shaped opening structure, inflation pipe one end is connected gas source through air pipe, and the other end of inflation pipe is equipped with cylindrical cylinder, and cylindrical cylinder is equipped in base;Base is equipped with clamping plate, and clamping plate is connected with battery pack explosion valve clamping groove;When needing to use, only need to connect inflation pipe with quick connector, then clamping plate is clamped into corresponding battery pack explosion valve clamping groove, and then hand knob is rotated 90 degrees, under the action of spring, inflation pipe lower end surface is sealed with explosion valve through sealing ring, at this time, strong magnet firmly absorbs explosion valve core rod, ensure that battery pack does not bulge when quick inflation, with the characteristics of high inflation efficiency, simple to use, high safety.

This utility model provides a multifunctional floating platform for fire and water rescue, belonging to the field of emergency rescue equipment technology. It addresses the problem that existing methods require breaking ice while approaching trapped personnel, which is cumbersome and affects rescue efficiency. The platform includes a main body, a rescue anti-slip mat, an anti-capsulation hull, a multifunctional rescue mechanism, and a rescue conversion mechanism. The rescue anti-slip mat is fixedly connected to the top of the main body. The marking drive box is fixedly connected to the upper rear end of the rescue anti-slip mat. The anti-capsulation hulls are fixedly connected to the lower left and right sides of the main body. Rescue limiting blocks are fixedly connected to the lower part of the anti-capsulation hull. The multifunctional rescue mechanism is located on the outside of the main body. The rescue conversion mechanism is located below the anti-capsulation hull, allowing for rapid assembly and eliminating the need to break ice while approaching or to navigate the ice surface before inflating the platform, thus simplifying the pre-rescue preparation process.

The utility model relates to a gas column machine for producing buffer packaging material provides a kind of for the moulding mechanism and gas column machine of high efficiency sealing, the moulding mechanism includes upper pressure wheel, lower supporting wheel and elastic pressure mechanism, the outer contour of upper pressure wheel and lower supporting wheel is along the arc inner recess of central opening in axial direction, to form the embracing surface matched with the outer circle of inflation rod;The elastic pressure mechanism cooperates with the upper pressure wheel, the elastic pressure mechanism applies thrust to the upper pressure wheel along the direction towards inflation rod, the utility model is by using the inner recess between upper pressure wheel and lower supporting wheel and the joint action of "embracing" clamping inflation rod, upper pressure wheel produces adjustable clamping force to lower supporting wheel under the action of elastic pressure mechanism, realize "clamping-gas locking" function, solve the problem of air leakage, insufficient gas, unsatisfactory gas column caused by "clamping not tight".

According to the anti-explosion integrated air inlet system of the FSAE racing car and the machining technology of the anti-explosion integrated air inlet system, components of the anti-explosion integrated air inlet system are integrally formed, pressure fluctuation in the air inlet system can be slowed down, the engine inflation efficiency is improved by fully utilizing the resonance effect of engine air inlet airflow, and the power output performance is improved. When the air inlet system is manufactured, a high-temperature-resistant nylon material with high tensile strength is selected as a base material, a surface reinforcing layer is manufactured on the surface layer through high-temperature vacuum forming of pre-impregnated carbon fiber cloth and a thermosetting blue glue film, the overall tensile strength of the air inlet system is further improved, and the explosion-proof performance is enhanced. And the tensile strength and the anti-knock property of the whole air inlet system are enhanced while the light weight and the inflation efficiency of the engine are guaranteed to the maximum extent. The process can reduce the deformation degree of the inner blank of the pressure stabilizing cavity during thermocuring of the carbon fiber reinforcing layer as much as possible, ensures the smoothness of the inner wall of the air inlet system, and improves the inflation efficiency.

The invention provides an umbrella skirt for a large parachute, comprising a main umbrella canopy, an umbrella rope, an outer umbrella skirt, an inner umbrella skirt, a pull rope, a cutter and a controller. The main umbrella canopy is provided with a first round edge and a cutter, a circumferential closing rope is wrapped around the first round edge, n umbrella rope buckles are provided on the first round edge, n umbrella ropes are respectively passed through n umbrella rope buckles, a second round edge and a third round edge are provided on the outer umbrella skirt, the outer umbrella skirt is made of a breathable textile material, and 2n umbrella ropes are evenly distributed in the middle of the outer umbrella skirt. The outer umbrella skirt buckle loop and the inner umbrella skirt are of hemispherical structure. The bottom of the inner umbrella skirt is provided with a fourth circular edge, and n inner umbrella skirt buckle loops are evenly distributed on the fourth circular edge. The pull rope passes through all the umbrella rope buckle loops, all the outer umbrella skirt buckle loops and all the inner umbrella skirt buckle loops and goes around the circumference of the outer umbrella skirt, so that the pull rope is in the shape of petals. The cutter is in contact with the circumferential closing rope and the pull rope, which solves the problem of asynchronous parachute opening and enables a single parachute to be orderly unfolded and filled, thereby improving the synchronization of parachute opening of multiple parachutes.

The utility model relates to a kind of carbon dioxide inflation devices in grape wine fermentation process, comprising: fermentation tank body, its inside is provided with interlayer, and many gas holes are uniformly distributed on interlayer wall;Opening and closing mechanism, including movable installation in the gas hole by reset elastic member's closure plug;When inflation, gas pushes closure plug outward to make interlayer and fermentation tank body communicate;Reversing mechanism, including the straight-through pipe of the interlayer and external gas source connected by three-way valve, the other end of straight-through pipe not connected three-way valve is set in fermentation tank body;Flow guide mechanism, when the three-way valve of interlayer communication is closed, gas in interlayer is guided to fermentation tank body by flow guide mechanism to make interlayer be in negative pressure state, and closure plug is closed gas hole under the action of negative pressure adsorption force.The utility model makes gas flow from periphery to middle part and then push oxygen outward to discharge, to make external gas source pass through interlayer evenly and rapidly to the inflation of fermentation tank body, and then improve the efficiency of carbon dioxide inflation.

The present invention discloses a soft two-way air valve, comprising a first soft body made of a flexible material, wherein a plurality of holes for ventilation are arranged on the first soft body, and the plurality of holes respectively form a first concave surface and a second concave surface on the upper and lower surfaces of the first soft body; a flexible second soft body and a third soft body are respectively fixed on the upper and lower sides of the first soft body, and a first protrusion and a second protrusion are respectively arranged on the upper and lower surfaces of the first soft body. The innovation point of the present invention is that through the deformation of the first soft body, the second soft body and the third soft body cooperate with the first concave surface and the second concave surface to produce a deformation combination, thereby forming a two-way air valve function that can be freely switched, and the inflation and deflation operations of self-inflatable products can be realized without equipping two one-way air valves. The present invention has a simple structure and is easy to operate, and can improve the inflation and deflation efficiency of self-inflatable products, while also reducing their storage volume.

The utility model relates to a fermented sausage casing removing device which comprises a shell, a transverse pipe is fixed to the right end of the shell, an inflation pipe is arranged on the left end face of the shell, an inflation needle head is fixed to the right end of the inflation pipe, the right end of the inflation needle head is a sharp end, and a plurality of inflation holes are evenly formed in the outer edge face of the inflation needle head. A blind hole is formed in the end, close to the inflation needle head, of each vertical rod, a sliding rod capable of sliding up and down is arranged in each blind hole, an arc-shaped rubber plate is fixed to the lower end of each sliding rod, and when the sliding rods move towards the inflation needle head, the rubber plates can make contact with the outer edge face of the inflation needle head. The front and rear ends of the rubber plate can be attached to the outer edge surface of the inflation needle after continuous movement; the rubber plates are respectively arranged on the upper side and the lower side of the inflation needle head, so that the front end and the rear end of the inflation needle head can be bent inwards under the supporting force of the connecting rod after the inflation needle head is in contact with the outer edge surface of a sausage and wrap the outer edge surface of the sausage, the left end of the sausage is effectively blocked, and the inflation efficiency is greatly improved.

The utility model relates to the field of inflatable tents, and provides an inflatable tent which comprises tent cloth and inflatable equipment, the inflatable equipment comprises a shell, a mounting cover and an air pump, the shell is contained on the inner side of the tent cloth, a mounting hole channel is formed in the outer side wall of the shell, and an air outlet hole channel is formed in one axial end of the shell; the mounting cover is arranged on the outer side of the tent cloth, the mounting cover is suitable for penetrating through the tent cloth to be connected with the mounting hole channel and pressing the tent cloth between the shell and the mounting cover, and the mounting cover is axially provided with an air inlet hole channel in a penetrating mode; the air pump is coaxially installed in the shell and communicates with the air inlet hole channel and the air outlet hole channel. According to the inflatable tent, the inflation equipment is arranged in the tent, inconvenience caused by an external air pump is avoided, the inflatable tent is more portable, the tent can be rapidly inflated, and the inflation efficiency is improved; and the tent cloth is pressed between the shell and the mounting cover through the mounting cover, so that the inflation equipment is better mounted in the tent, and the air tightness of the tent is better.

The utility model relates to the technical field of fitness equipment, in particular to a weightlifting water bag which comprises a bag body, the bag body comprises an outer bag body and an inner bag body, the inner bag body is arranged in the outer bag body, the end of the inner bag body is fixed to the inner wall of the outer bag body, the inner bag body divides the inner space of the outer bag body to form an inflation bin and a water storage bin, and the inflation bin is communicated with the water storage bin. The end face of the outer bag is provided with a water injection port and an inflation port, the water injection port is communicated with the water storage bin, and the inflation port is communicated with the inflation bin; the weightlifting water bag has the advantage that the use stability of the weightlifting water bag is improved.

The utility model discloses a portable automatic pressurization system for a pressurization bag, which comprises a pressurization device and the pressurization bag, the pressurization device comprises a shell, an inflation assembly, an inflation joint and a power supply assembly, the inflation assembly is arranged in the shell, the inflation joint is arranged on the shell, an air guide pipe is arranged on the pressurization bag, and the power supply assembly is arranged on the shell. The first end of the air guide pipe is communicated with the pressurization bag, the second end of the air guide pipe is detachably connected to the inflation connector, so that the pressurization device is hung on the air guide pipe, and the inflation assembly is configured to inflate the pressurization bag through the inflation connector and the air guide pipe so as to extrude bagged liquid in the pressurization bag; the power supply assembly is configured to supply power to the pressurization device. According to the portable automatic pressurizing system for the pressurizing bag, the pressurizing device is hung at the bottom of the pressurizing bag, so that the automatic pressurizing device is optimized, the weight and the size of the automatic pressurizing device are reduced, and the portable automatic pressurizing system has the effects of being convenient to operate and reducing the manufacturing cost.

The present invention discloses a high liquefaction temperature mixed gas rapid filling device and filling method. The pressurized container applies pressure to the liquid phase environmentally friendly insulating medium by introducing high-pressure background gas, increasing its pressure so that it has sufficient pressure to output to the next link; the heating pipeline heats up the background gas and merges with the high liquefaction temperature insulating medium to accelerate its gasification; the mixed gas cavity has jet holes and stirring particles to make the background gas and the high liquefaction temperature insulating medium fully contact and evenly mix; the buffer gas chamber is equipped with a set of compressors to pressurize the mixed gas in the buffer gas chamber and replenish the target gas chamber. The present invention has the advantages of on-site portability, high gas distribution accuracy, and high filling rate, and solves the inflation and gas replenishment needs of environmentally friendly gas insulation equipment using high liquefaction temperature insulating medium during commissioning and operation and maintenance.

The utility model relates to a valve core which comprises a core body and a sealing gasket, a vent hole is formed in the middle of the core body in a penetrating mode, the sealing gasket is arranged on the vent hole in one end of the core body, the sealing gasket is connected with the core body, a first limiting ring is arranged in the core body, and the inner side of the sealing gasket abuts against the first limiting ring. A second limiting ring is arranged at the other end of the core body, and the outer diameter of the second limiting ring corresponds to the inner diameter of an air outlet of the blower. By arranging the first limiting ring, during use, the sealing gasket is driven to abut against the first limiting ring through the atmospheric pressure difference so as to block one end of the vent hole, and the purpose of avoiding air leakage is achieved; by arranging the second limiting ring, the air outlet of the blower can be directly buckled on the second limiting ring, then the massage air cushion on the other side of the vent hole is inflated through the blower, the inflation efficiency is higher, special inflation equipment does not need to be used, and the cost is lower.

The utility model belongs to the technical field of air pumps, and particularly relates to an air pumping and inflating assembly with a built-in air pump, which comprises an upper cover, a middle cover, a lower cover and a bottom plate which are sequentially arranged from top to bottom, a motor is arranged in a first accommodating cavity formed by the upper cover and the middle cover, and fan blades driven by the motor are arranged in a second accommodating cavity formed by the middle cover and the lower cover. A first through hole and a second through hole are formed in the bottom plate, an air hole communicated with the first through hole is formed in the lower cover, a through hole is formed in the middle cover, a first flow channel is formed in one side of the middle cover, a second flow channel is formed in one side of the lower cover, and the first flow channel and the second flow channel are communicated to form a gas flow channel used for communicating the first containing cavity and the second through hole. Compared with the prior art, due to the fact that the air inlet and the air outlet are formed in the same direction, air enters the air suction and inflation assembly to form pressure, the pressurization effect is achieved, and the air suction and inflation efficiency is improved.

The application provides a pneumatic valve body, which comprises an actuator arranged in a main air cavity of the pneumatic valve body, one end of the actuator being used to block a gas leakage port of the pneumatic valve body; an air inlet being communicated with the main air cavity; a first blocking member being a one-way limiting structure, the first blocking member being sleeved on the actuator and being in contact with the inner wall of the main air cavity so as to separate the gas path in the main air cavity; when the pneumatic valve body is in an inflation state, the gas enters the main air cavity from the air inlet, drives the first blocking member to displace, and is inflated after flowing through the first blocking member; wherein the other end of the actuator is connected with a memory alloy wire, and the memory alloy wire controls the blocking of the gas leakage port by the actuator based on electric conduction deformation. The application improves the integration of the pneumatic valve body, realizes the miniaturization of the pneumatic valve body, and is better suitable for the narrow space in the automobile seat.

The present invention belongs to the field of hydrogen rotor machine combustion control, and provides a hydrogen rotor machine combustion control system and method for end-face hydrogen injection. The system includes a hydrogen injection valve group, which is symmetrically installed at the hydrogen injection holes reserved in the front cylinder head and the rear cylinder head of the hydrogen rotor machine; a controller, which is used to control the opening time of the hydrogen injection valve group according to the rotor machine speed and load conditions, so as to realize hydrogen injection at multiple points of the hydrogen rotor machine cylinder at different times, so as to achieve the purpose of hydrogen stratified combustion.

The present application relates to a kind of combination tethered airship anchoring platform, adopt combination structure, into three parts, respectively, two ends of inflatable part, middle power supply communication part and tethered part.Inflatable part of two ends can be simultaneously inflated for tethered airship, middle part is tethered to airship by cable, power supply and establish communication with ground.The tethered part is automatically unfolded on the anchoring platform, and the airbag is inflated after unfolding, so that automatic release can be realized.When recovering, the tethered airship descends, and the automatic recovery mechanism is designed to trigger the limit stop by the photoelectric slip ring on the cable, so that the equipment is powered off.After connecting the inflation pipe to recover the gas, the automatic unfolding structure is folded, and the recovery is completed.The present application adopts split structure and can be transported separately, which is convenient to pass through.The air supply device is set at both ends to supply air for airship simultaneously, which improves the release efficiency and has automatic release and recovery functions, simple operation and reduces personnel participation.

The utility model discloses a novel high-power low-emission layered scavenging air cylinder, which relates to the technical field of layered scavenging air cylinders and comprises an air cylinder body, a piston cavity is arranged in the air cylinder body, a first scavenging port is transversely arranged on the inner wall of the piston cavity, and a second scavenging port is transversely arranged on the inner wall of the piston cavity. The first scavenging port and the second scavenging port are located in the piston cavity at different heights and are located on different cavity surfaces, and a pair of mixed air inlets is transversely formed in the inner wall of the piston cavity. According to the utility model, the first scavenging port and the second scavenging port are arranged on the opposite surfaces of the cavity and are transversely arranged, and gas can quickly enter the cylinder, so that dead zones in the cylinder are reduced, the gas in the cylinder flows more smoothly, and the inflation efficiency and the exhaust efficiency of the cylinder are improved. Therefore, the performance and combustion efficiency of the internal combustion engine can be improved, and exhaust emission and fuel consumption are reduced.

The invention belongs to the technical field of pressure storage tank control methods, and provides a pressure storage tank inflation control method and device and a medium. According to the pressure storage tank inflation control method, a physical model of the dynamic inflation process is built; acquiring unknown parameters of the physical model according to the calibration data and the physical model; obtaining a trained machine learning model through calibration data training; obtaining a soft measurement model through the calibrated physical model and the trained machine learning model; acquiring real-time data, and acquiring a real-time mass flow through the real-time data and the soft measurement model; obtaining a current valve opening instruction according to the real-time data and the real-time mass flow; according to the method, by fusing multi-source sensing information such as strain and temperature and combining a soft measurement model established through early-stage calibration, non-intrusive pressure and flow high-precision sensing is achieved, closed-loop inflation control is conducted based on the non-intrusive pressure and flow high-precision sensing, and therefore on the premise that safety is guaranteed, the inflation efficiency is remarkably improved, and the system cost is reduced.

The utility model relates to the technical field of PVD (Physical Vapor Deposition) coating, in particular to a vacuum breaking device for a film outlet chamber of a vacuum system, which comprises a vacuum chamber, upper inflating components, lower inflating components and an inflating pipeline, a vacuum chamber cover is arranged on the vacuum chamber, the upper inflating components are arranged on the front, back, left and right sides of the vacuum chamber cover, and the lower inflating components are arranged on the upper inflating components. A lower inflation assembly and an inflation pipeline are arranged at the position, opposite to the upper inflation assembly, of the bottom wall of the vacuum cavity, and the inflation pipeline is communicated with the vacuum cavity through the upper inflation assembly and the lower inflation assembly. According to the vacuum breaking device, the paired upper and lower air inflation assemblies are correspondingly arranged, so that the air inflation efficiency is improved, the instantaneous air pressure difference of the vacuum chamber is reduced, and the air inflation smoothness and uniformity are improved; according to the magnetron sputtering coating device, rapid vacuum breaking of a wafer outlet chamber in a magnetron sputtering coating system is achieved, meanwhile, intense impact of airflow on a battery piece on a carrier plate in a vacuum cavity can be eliminated, the phenomena of silicon wafer deviation, fragmentation and the like of the battery piece on the carrier plate are avoided, and continuous production of the magnetron sputtering coating device is achieved.

The flow-increasing air pump comprises an air pump body, an air inflation channel and a flow-increasing channel, an air inlet of the air inflation channel is used for being connected with output air flow of the air pump body, an air outlet of the air inflation channel is used for being connected with an inner cavity of an air inflation product, and an air inlet of the flow-increasing channel is used for being communicated with the outside of the air pump so as to be connected with external environment air. An air outlet of the flow increasing channel is connected to the inflation channel; a flow guide structure is arranged at the communication position between the flow increasing channel and the inflation channel. Air flow entering the inflation channel from the air pump body is guided by the flow guide structure to surround the air outlet of the flow increasing channel, converge in front of the air outlet of the flow increasing channel and flow towards the air outlet of the inflation channel. According to the air pump, in the process that the air pump inflates the inflatable product, external air can naturally enter the interior of the inflatable product, the air inflow in the inflation process is effectively increased, and therefore the inflation time of the air pump to the inflatable product is shortened, the inflation efficiency is higher, and energy consumption of the air pump cannot be additionally increased.

The utility model discloses an ultrasonic dewatering screen for sewage treatment, which comprises a bracket, rotating shafts are symmetrically arranged above the inner side of the bracket, a drum screen is fixedly arranged between the two rotating shafts, a driving motor is fixedly arranged on one side of the outer part of the bracket, and the output end of the driving motor penetrates through the bracket and is fixedly connected with the rotating shaft on one side; the device further comprises a sludge discharge pipe connected to the lower portion of one side of the rotary screen in a penetrating mode, a feeding pipe connected to the other side of the rotary screen in a penetrating mode, and a drainage frame connected to the lower portion of the inner side of the support in a penetrating mode. A discharging hopper is connected to one side of the interior of the support and located below the sludge discharging pipe in a penetrating mode, and fixing frames are symmetrically installed at the top end of the support; and when the drum screen is subjected to air blowing anti-blocking, the air blowing range can be expanded, the air inflation efficiency is improved, the number of the air outlet pipes does not need to be increased, and practicability is improved.

An inflatable device for inflating an RSP mask box, comprising a fixed tool and an inflatable component. The RSP mask box comprises a box body and an air inlet valve. The fixed tool comprises a tool base plate. Each of the inflatable components comprises an air nozzle bracket, an air nozzle, a center rod, a bracket base plate, and an inflatable spring. The air nozzle comprises a sealing ring and a deformation ring. The deformation ring is an annular umbrella-shaped structure. The center rod comprises a rod body, a blocking portion, a sealing portion, a head portion, and a tail portion. Compared with the prior art, the present invention provides the inflatable component to achieve contact-type inflation, so that the box body can be ventilated when it is put on and closed when it is taken away, which is simple and efficient. And by providing the air inlet valve, a double valve structure is achieved, thereby effectively preventing the box body from losing air. Finally, by providing the air nozzle, the inflatable component and the air inlet valve are always sealed, effectively preventing gas leakage at the connection, and reducing gas loss.