119results about How to "Shorten inflation time" patented technology

The invention provides a tray used for steel coil transportation, and belongs to the technical field of transportation. The tray solves the technical problem that an existing movable tray is not suitable for bearing steel coils. The tray comprises a tray frame and a limiting frame arranged on the tray frame and used for positioning a steel coil. At least two long-strip-shaped installation grooves are formed in the bottom of the tray frame. Long-strip-shaped rolling wheel frames are arranged in the installation grooves. A plurality of rolling wheels are connected to the rolling wheel frames in the length direction of the rolling wheel frame. Guide structures capable of guiding the rolling wheel frames to move up and down relative to the tray frame and limiting structures capable of preventing the rolling wheel frames from being disengaged from the installation grooves are arranged on the portions, located in the installation grooves, on the tray frame. Gas bags are arranged in the installation grooves and located above the rolling wheel frames. The whole rolling wheels can be located in the installation grooves when the gas bags are not inflated. The gas bags can act on the rolling wheel frames to make the rolling wheels stretch out of the installation grooves when the gas bags are inflated and expanded. The tray has the advantage that the steel coil can be stably transported.

The invention discloses a large-diameter pipeline welding device which comprises a pipeline support fixture, wherein the pipeline support fixture comprises a horizontally arranged pipeline support suspending arm, a first vertical post, a second vertical post, a track, a dorsal gas trolley, a driving device, a gas box and a gas pipe, wherein the first vertical post and the second vertical post are arranged at two ends of the pipeline support suspending arm; the track is arranged on the pipeline support suspending arm; the dorsal gas trolley is slidably arranged on the track; the driving device drives the dorsal gas trolley to move; the gas box is arranged on the dorsal gas trolley; the top of the gas box is provided with a gas outlet; and the gas outlet end of the gas pipe is communicated with the inner cavity of the gas box. A pipeline welding dorsal gas protection device provided by the invention is provided with the dorsal gas trolley which moves synchronously with the welding torque, and the gas box is installed on the dorsal gas trolley, and an inert gas is transmitted into the gas box through the gas pipe so as to achieve the aim of partial dorsal gas protection. Compared with the prior art, the pipeline welding dorsal gas protection device provided by the invention can be used for greatly shortening the gas inflation time, greatly improving the production efficiency, reducing the using amount of the inert gas and greatly lowering the cost.

The invention provides a continuous inflatable air sealing member and manufacturing method thereof. In the air sealing member, a plurality of channel adhering parts are adhered with two inner membranes to form a plurality of gas channels, and a plurality of first heat sealing lines are adhered with a first outer membrane and a second outer membrane and the two inner membranes along a first direction, two second heat sealing lines are adhered along a second direction, wherein one second heat sealing line is adhered with the first outer membrane and the second outer membrane, the other second heat sealing line is adhered with the first outer membrane and adjacent inner membrane as well as the second outer membrane and adjacent inner membrane, so that the two inner membranes are not adhered at the second heat sealing line and a plurality of air inlets are formed, a plurality of air columns are formed among the first outer membrane, the second outer membrane and the two inner membranes which are adhered with the first heat sealing line and the second heat sealing line, gas flows into the gas channel by virtue of the air inlet and is filled into the air column for aeration and expansion, the gas presses one end of the two inner membranes to be adhered after entering the air column, thus sealing the air column, and the other end of the two inner membranes are separated to form a gap. The air sealing member can automatically open the air inlet and continuous aeration is realized.

The invention provides an air inflation and exhaust system. The system comprises a sealing device which forms a forming cavity and a flexible device used for keeping and releasing the gas, wherein thesealing device is provided with a gas outlet, a gas inlet, a first through hole and a second through hole, the gas outlet is used for allowing the gas in the forming cavity to be discharged out of the cavity, the gas inlet is used for enabling the inert gas to enter the forming cavity through the gas inlet, the first through hole is used for allowing a part of a access device to be accommodatedin the forming cavity of the sealing device in a sealing mode, and the main body part of the flexible device is arranged in the forming cavity of the sealing device in a sealing mode through the second through hole; and the flexible device is provided with a gas inflation port and a gas extraction port which are used for allowing the gas to be fed and allowing the gas to be extracted respectively,and the gas inflation port and the gas extraction port are positioned outside the sealing device. The invention further provides additive manufacturing equipment and an air inflation and exhaust method.

The invention provides an air sealing member capable of opening an air valve naturally and a manufacturing method of the air sealing member. A heat-resisting material is firstly coated in a reserved area between two inner membranes, the two inner membranes are overlapped between two outer membranes, an inflatable channel and an air column are formed by means of heat sealing, air inlets are formedat the parts of the two inner membranes, on which the heat-resisting material is coated, by means of heat sealing, a plurality of heat sealing blocks are formed in the inflatable channel by adhering by means of heat sealing, wherein the plurality of heat sealing blocks are tapered gradually from one side close to a first horizontal heat sealing line to the other side. In an air inflation process,the two outer membranes of the inflatable channel are pulled outwards in a vertical direction, the inflatable channel is tightened in a horizontal direction because of fall formed by the heat sealingblocks, the two inner membranes are squeezed by the multiple heat sealing blocks to be pulled outwards, and thus the air inlets are opened; after air enters the air column, the two inner membranes are pressed to close the air column. Therefore the air sealing member can automatically open the air inlets to realize continuous air inflation in the air inflation process, and the purpose of saving air inflation time is achieved.

An aerating moulding bed used for filling comprises an aerating air bag membrane (1) and a framework (2). The aerating moulding bed is characterized in that: the aerating air bag membrane (1) is a tubular member, and the framework (2) is arranged on the membrane wall of the aerating air bag membrane (1). Therefore, the aerating moulding bed is transported in an unaerated state and then is aerated and mounted on a construction site, thereby realizing convenient transportation and substantially reducing transportation cost; moreover, the framework arranged on the aerating moulding bed reinforces the mechanical property and the integrity of a moulding bed member, and increases the overall strength of the moulding bed member; meanwhile, a filling member has the characteristics of light deadweight, low cost, excellent shock resistance, simple, convenient and quick production and convenient transportation, etc., thereby achieving the aim of the invention. The aerating moulding bed is suitable to be used in hollow floor, roof, base slab, wall body and open frame bridge made of castinplace reinforced concrete, and is particularly suitable to be used in hollow beamless floor made of the castinplace reinforced concrete.

An aerating moulding bed used for concrete filling comprises an aerating member (1), wherein the aerating member (1) is a basin-shaped member; and a basin wall (2) is formed by an aerating bag. The aerating moulding bed is characterized in that: the inner wall or/and the outer wall of the aerating member (1) is/are provided with a framework (3), a pull belt (4) or a pull rope (5). The aerating moulding bed is convenient for transportation and substantially reduces transportation cost; moreover, the framework arranged on the aerating moulding bed reinforces the mechanical property and the integrity of a moulding bed member, and increases the overall strength of the moulding bed member; meanwhile, a filling member has the characteristics of light deadweight, low cost, excellent shock resistance, simple, convenient and quick production and convenient transportation, etc., thereby achieving the aim of the invention. The aerating moulding bed is suitable to be used in hollow floor, roof, base slab, wall body and open frame bridge made of castinplace reinforced concrete, and is particularly suitable to be used in hollow beamless floor made of the castinplace reinforced concrete.

The invention provides a continuous air inflating structure for a hangar. A main body adopts an integral air inflation forming structure formed by connecting a plurality of air ribs; each air rib adopts an arched air inflation cavity structure formed through hot pressing of a PVDF (polyvinylidene fluoride) coating material by a high-frequency hot unionizer; and connectors are connected onto the air ribs and adopt T-shaped structures formed by joint faces used for connecting the air ribs and connecting pipes used for communicating cavities among the air ribs, and the connecting pipes of the connectors among the air ribs are glued and communicated by cold glue. According to the continuous air inflating structure technology, a modularized continuous inflatable skeleton scheme is innovatively proposed on the basis of an original technology, the structure is simple, the stability is high, the sealing performance is good, the life is long, the integral rigidity of the air inflating structure can be remarkably improved, and the anti-wind capacity of a camouflage device of an inflatable aircraft for field operations is improved.

The invention relates to a gas generator for an inflatable life raft. The gas generator comprises a generator shell, a generator upper cover, a generator lower cover and a gas generating agent grain;the generator upper cover and the generator lower cover are fixedly arranged at two ends of the generator shell, and an inner cavity formed by the generator upper cover and the generator lower cover is used as a combustion chamber of the generator; and the gas generating agent grain is fixedly arranged in the combustion chamber through a positioning device. One of the generator upper cover and thegenerator lower cover is used for installing an ignition device, the other one is provided with a filtering and cooling device, and gas generated after the gas generating agent grain is combusted isdischarged after being filtered and cooled by the filtering and cooling device.

The invention discloses a novel environment-friendly insulation medium fast charging and discharging device and a gas preparation method. The device comprises a liquid storage tank (9) and a gas storage chamber (8), and is characterized in that a heating module (14) is arranged in a bottom casing of the liquid storage tank (9); the gas storage chamber (8) and the liquid storage tank (9) are respectively connected with a gas distribution device (6) through a second gas outlet pipe (25) and a first gas outlet pipe (24); the gas distribution device (6) is connected with gas insulation equipment (1) through a third gas outlet pipe (2). The device and the method solve the technical problems that in the prior art, C6F12O is used as environment-friendly insulation gas of medium-low-pressure equipment, the precise C6F12O and CO2 mixing ratio cannot be realized; the comprehensive local discharge performance and breakdown performance are seriously influenced; in addition, when the C6F12O and CO2gas mixed charging is used, the mixing ratio cannot be precisely controlled; the mixed charging is difficult, and the like.

The invention discloses a firefighting lifesaving air cushion capable of automatically moving. The firefighting lifesaving air cushion capable of automatically moving comprises a walking device, an air cushion, an air bottle, a battery, a binocular visual system, a control system and the like, when arriving at a site in distress, after an object is found by the binocular visual system, the binocular visual system positions and tracks the object, predicts the falling point of the object, and sends information to the control system, the control system gives out control instructions, on one hand, the walking device is controlled to move toward the object falling point, and on the other hand, a draught fan and the air bottle are turned on to inflate the air cushion, so that the air cushion is filled with air in a shortest period, and the requirement of fast rescue is achieved; when a fallen person falls on the air cushion, the pressure in the air cushion rises sharply, when a set-up pressure of a safety valve is reached, the safety valve is opened, and impact pressure is relieved by the air cushion step by step, so that impact on the fallen person is reduced. The firefighting lifesaving air cushion capable of automatically moving has the advantages that the speed of air inflation is high, the firefighting lifesaving air cushion is capable of automatically moving, positioning is accurate, the pressure can be relieved step by step and the like; the fallen person can be effectively protected.

The invention discloses an inflation mechanism, which comprises a box body, a first gas compression device, a second gas compression device, a gas storage pipe and a control device; the box body is internally provided with a holding space; the first gas compression device is installed in the box body and provided with a first motor, a gas cabin body and a vent hole which is communicated with the gas cabin body; the second gas compression device is installed in the box body and provided with a second motor, a first compression cylinder and an air outlet which is communicated with the first compression cylinder; the gas storage pipe is installed in the box body and provided with an exhaust port, a first interface connected with the vent hole and a second interface connected with the air outlet; the control device is installed in the box body and comprises a central processing unit which is electrically connected with the first motor and the second motor; and the control device measures the pressure value of the pressurized gas, and controls the first motor and the second motor to operate successively, so as to respectively output the pressurized gas into the gas storage pipe, and the pressurized gas is output through the exhaust port. The structure has short inflation time and high inflation efficiency, and can be used for air escape.

An inflatable stretcher includes an upper and a lower cover member connected along their outer peripheral edges to define an internal air space. The lower cover member has a plurality of perforations forming an overall pattern contoured to the shape of a human body. First and second partitioning member are disposed in the air space and connected to the upper and lower cover members to divide the air space into a plurality of widthwise-extended air release passages and two lengthwise-extended air flow passages located at two lateral sides of the air release passages. A flow opening is formed between each second partitioning member and each corresponding first partitioning member. The flow openings respectively have a cross-sectional area smaller than that of each air release passage, enabling air supplied from an inflation device into the air space to produce an increased air lifting force at positions corresponding to a patient's hips.

The invention discloses a multi-air-chamber air mattress. The multi-air-chamber air mattress comprises a mattress body and an air pump arranged on the mattress body, wherein the mattress body is provided with at least three independent air chambers; one of the air chambers is formed on the surrounding surface of the mattress body to form a side surrounding air chamber; at least two air chambers are formed in a space enclosed by the side surrounding air chamber to form bed air chambers; the bed air chambers are formed side by side in sequence; and each bed air chamber forms a bed correspondingly. Compared with the prior art, the multi-air-chamber air mattress is convenient for independently adjusting the hardness of each air chamber, so that the mattress body is more suitable for the needsof different users, and the comfort degree is improved. According to the technical scheme, a natural air intake channel is formed in the air pump, thereby avoiding the limitation on the maximum inflation amount and inflation volume of the air chamber under inflation since other air chambers are in negative pressure states during inflation of one of the air chambers, effectively ensuring the maximum volume and air pressure of each air chamber, shortening the inflation time of the whole air chamber, and saving electric energy.

The invention discloses a parachute with a top hole cover. The parachute comprises a main parachute canopy (2), an elastic connecting device (5) and the top hole cover (6), a main parachute rope (1) is arranged below the main parachute canopy(2), the lower portion of the main parachute rope (1) is connected with a load, the main parachute canopy (2) is provided with a parachute top hole (4), the top hole cover (6) is arranged above the parachute top hole (4), the size of the top hole cover (6) is matched with that of the parachute top hole(4), and the elastic connecting device (5) is arrangedbetween the top hole cover (6) and the parachute top hole (4). By adding the top hole cover in the parachute top hole and arranging the elastic connecting device between the parachute top hole and thetop hole cover, opening and closing between the top hole cover and the parachute top hole are achieved, low-altitude landing requirements are met, and the too large dynamic load harm is avoided.

The invention discloses a service brake system for a wheel loader. The system comprises an air compressor, an unloading valve, an air cylinder and a safety valve. The air compressor is connected withthe air cylinder through the unloading valve; the safety valve is arranged on the air cylinder and is used for limiting the highest pressure of the system. The service brake system is characterized byfurther comprising an air brake valve, a relay valve, a brake air chamber and a brake, an outlet of the air cylinder is connected with an air inlet of the air brake valve and an air inlet of the relay valve, an air outlet of the air brake valve is connected with a control air pressure input port of the relay valve, and an air outlet of the relay valve is connected with the brake through the brakeair chamber. The system cancels the brake fluid to thoroughly solve a gasification problem of the brake fluid and improve the safety of the service brake system. The relay valve is used in the system, the position is reasonably arranged, the inflation time of a brake air chamber is shortened, the brake lag time is shortened, and brake is more sensitive.

The invention discloses an emergency dual-chamber dual-cuff throat vent pipe. The emergency dual-chamber dual-cuff throat vent pipe comprises a main vent pipe, an auxiliary pipe, a multiple-ventilation opening and a cuff charging assembly, wherein the main vent pipe adopts straight line design, the cross section of the main vent pipe is in the shape of a circle, and an integration dental pad and depth scales are arranged/formed at/in the near end of the main vent pipe; the auxiliary pipe slantways penetrates in the near-section pipe wall of the main vent pipe, travels in the pipe chamber of the main vent pipe, and threads out at the position of the multiple-ventilation opening at the far end of the main vent pipe; a far-end opening adopts inclined design; the main vent pipe and the auxiliary pipe are prepared from medical silica gel materials; the multiple-ventilation opening is totally provided with 4-6 outlets in annular average distribution, is inclined when being viewed from the side surface, and is located between the far end of the main vent pipe and the auxiliary pipe; and the cuff charging assembly contains a large cuff, a small chuff, a pressure measuring air-charged bag and a charging connecting pipe, and the pressure measuring charging bag can be used for charging the large cuff and the small cuff and at the same time and can measure the pressure in the bag. The emergency dual-chamber dual-cuff throat vent pipe disclosed by the invention has different model sizes, is simple and convenient to operate, can be freely inserted for use, and is high in safety and validity.