51results about How to "Reduce the amount of inflation" patented technology

The invention provides a human hand-imitated type rehabilitation manipulator. Pneumatic joints (2) are of pleated airbag structures; a wrist air filling and releasing part (11) is communicated with the airbag structures of the pneumatic joints (2); finger parts (13) are matched with connection structures of hand bones, a plurality of knuckles (131) on the finger parts (13) are hinged through hinges (4) and driven by the pneumatic joints (2), the finger parts (13) are respectively connected with a palm part (12) through the pneumatic joints (2), and a wearing structure (3) for fixing a human hand is arranged. The manipulator is suitable for patients with hand diseases to perform training in various occasions, especially at home, and the manipulator can help the patients with hand diseases to perform corrective rehabilitation training and is suitable for rehabilitation persons whose hands cannot be actively trained as well as users who can conduct a certain degree of active training. Themanipulator has a simple overall structure, convenient manufacture, convenient carrying, easy operation and good market prospect and is economical and practical.

The invention discloses an internal combustion engine nitrogen-reducing and oxygen-increasing air inlet device and a control method thereof. The internal combustion engine nitrogen-reducing and oxygen-increasing air inlet device comprises nitrogen filter pipes, a control system and an exhaust gas turbine connected with an exhaust pipe, wherein the wall pipe of the nitrogen filter pipes is provided with a first oxygen sensor, a low oxygen air exhaust valve and an air straight-through valve electromagnetic valve; one end of a turbine air pressing device is connected with an air filter; an air inlet manifold is connected with a plurality of air inlet manifolds of an engine; the air inlet manifold is provided with a second oxygen sensor. The air filter is used for filtering mechanical impurities in air, the turbine air pressing device is used for pressing each nitrogen filter pipe, oxygen in air is successfully filtered through the nitrogen filter pipes to enter an air cylinder under the combined action of the pressing of the turbine air pressing device and the air inlet suction of an engine, but the nitrogen is inhibited to pass through, so that the content of the oxygen in air entering the air cylinder through the nitrogen filter pipes is greatly increased, and then higher power can be achieved through oil burning, the burning is improved at the same, and the energy saving and environmental protection of the engine are really achieved.

The invention discloses a foldable wire-drawing inflatable sofa, which comprises a backrest, armrests and a seat. The backrest and the armrests at two sides are integrated. The backrest and the armrests at two sides form a square structure such that the backrest and the armrests at two sides can be folded into a square structure. Two ends of the seat are provided with seat bulges, which are inserted into seat holes arranged in the armrests at two sides. Magic tapes are fixed on the seat bulges, and fit with magic tapes fixed on the armrests. Therefore, the seat and the armrests are fixed. The backrest and the seat are both provided with air vents for air inflation and deflation, and the backrest, the armrests and the seat are all made of a wire-drawing material. The invention has the following beneficial effect: by the use of the wire-drawing material, the raw material is shaped by wire-drawing after air inflation, and then the problem that an airtight product expands in each direction is solved; after air inflation, both faces are flat and smooth so as to achieve the plate-type effect; the air inflation amount is smaller than air inflation amount of a common sofa; and the sofa of the invention occupies small space and is convenient to carry.

The invention discloses a disassemble cuff type sphygmomanometer, which comprises a sphygmomanometer and a cuff, wherein the sphygmomanometer is connected with an upper fixing element, or the sphygmomanometer and the upper fixing element form an integral element; the cuff is connected with a lower fixing element; the upper fixing element and the lower fixing element are detachably connected through a fixed connection element; the upper fixing element is a thin-wall element; the lower fixing element is a batten column composite element or the integral element; the fixed connection element is aplate rod hook composite element or the integral element; disassemble connection is detachable hooking; the cuff is a disposable cuff; and the sphygmomanometer is provided with a contact-proof cover.The sphygmomanometer and the cuff of the disassemble cuff type sphygmomanometer can be easily disassembled, and when blood pressure monitoring equipment needs to be disassembled for multiple times, the sphygmomanometer in the disassemble cuff type sphygmomanometer can be easily disassembled from the cuff and can be easily assembled to the other cuff. The disassemble cuff type sphygmomanometer is favorable for lowering the production cost of the disposable cuff, and the problem that when a patient uses the disassemble cuff type sphygmomanometer, the patient touches buttons on the sphygmomanometer by mistake can be avoided.

The invention provides a plastic bag constant-volume inflating device, which comprises a pressure stabilizing inflation device and a plastic bag opening suction opening and heat sealing device. The input end of a inflation control valve is connected with an air inlet pipeline, and the output end of the inflation control valve is connected with a pressure stabilizing device; the output end of the pressure stabilizing device is connected with an electromagnetic valve; the output end of the electromagnetic valve is connected with an inflation device; and the output end of the inflation device isconnected with a plastic bag opening opened through the plastic bag opening suction opening and heat sealing device through a needle tube of a vacuumizing inflation needle tube telescopic device. Theplastic bag opening suction opening and heat sealing device is provided with a plurality of rubber vacuum suction cups through a vacuum generator, the suction cups are sequentially arranged on the upper side and the lower side of the plastic bag opening in a face-to-face mode, and air cylinders are installed on suction cup supports respectively to control the supports to reciprocate. A PLC (Programmable Logic Controller) as well as the pressure stabilizing inflation device and the plastic bag opening sucking opening and heat sealing device which are connected with the PLC are arranged; and thedevice is simple in structure, effectively achieves the purposes of continuously controlling the pressure in the container to be stable, automatically sucking and opening the plastic bag opening, vacuumizing, constant-volume filling and heat sealing, and is safe and reliable in work and high in efficiency.

The invention discloses a timing feed feeding device for aquaculture and a feeding method of the timed feed feeding device , and belongs to the technical field of timed feed feeding, the timed feed feedingdevice comprises a storage barrel, a sealed discharging device is arranged below the storage barrel, a putting device is connected below the sealed discharging device, and the putting device is mounted above a buoyancy device; and a power assembly connected with the throwing device is arranged below the buoyancy device. According to the timed feeding device for aquaculture and the feeding method of the timed feeding device, the sealing performance of the storage barrel in the feeding process is effectively guaranteed, moisture is prevented from entering the storage barrel, internal feed is prevented from being affected with damp, feed deterioration is avoided, the feeding effect is prevented from being affected, the feed storage environment is guaranteed, metering of feed feeding is guaranteed, and the feeding precision is improved; and quantitative scientific feeding is effectively achieved, inconvenience of artificial feeding is reduced, feed scattering uniformity is guaranteed, utilization efficiency is improved, and automatic timed and quantitative feed feeding is effectively achieved.

The invention provides a seal testing device and system for a rotary disc bearing. The seal testing device comprises an outer ring sealing cap used for being connected with the end surface of one side, backing on the sealing ring, of the outer ring of the bearing in a sealing mode, and further comprises an inner ring sealing cap used for being connected with the end surface of an inner ring of thebearing in a sealing mode; after the outer ring sealing cap and the inner ring sealing cap are connected with the bearing, and a sealing inner cavity is enclosed by the outer ring sealing cap and theinner ring sealing cap and the bearing; a gas charging connector used for being connected with a high-pressure gas source and charging compressed gas into the sealing inner cavity is arranged on oneof the outer ring sealing cap and the inner ring sealing cap, a pressure detecting device used for communicating with the sealing inner cavity is further arranged on one of the outer ring sealing capand the inner ring sealing cap, and the pressure detecting device judges the sealing property of the bearing by detecting whether the pressure in the sealing inner cavity changes or not. According tothe sealing testing device and system for the rotary disc bearing, the rotary disc bearing does not need to be subjected to installation detection, and the problem that the seal testing efficiency islow due to installation and dismantling is solved.

The invention discloses an automatically opened and closed flat-bottom valve gate which is arranged on a stilling pool and a horizontal alley. The automatically opened and closed flat-bottom valve gate is characterized by comprising a tapered door body valve gate, an arched bracket, water seals of notches around the arched bracket, support shafts and upper and lower movable switches of the support shafts, wherein the tapered door body is hollow; the cavity of the tapered door body contains a compressed airbag which has a big upside and a small downside; multiple water inlets are formed in the upper side of the tapered valve gate while a water outlet hole is formed in the downside. The shafts are arranged at both the upper part and the lower part of the valve gate and are connected to the arched bracket; a gas conveying pipe and a gas valve pipe both for inflating and deflating the airbag are arranged at two sides of the arched bracket. The valve gate is internally provided with a gas heating device for heating and warming the gas. The gas valve can seal the water automatically when being closed and can send a signal when discharging water successfully. The automatically opened and closed flat-bottom valve gate has the advantages of being simple in structure, safe, labor-saving, opened and closed automatically, and the like.

The invention discloses a safety air bag installed on the rear side of an automobile seat, and belongs to the field of vehicle engineering, the safety air bag comprises an air bag release device installed on a backrest of the automobile seat, and further comprises a sliding support, a transmission mechanism and a driving mechanism, the sliding support is slidably connected with a track of the automobile seat, and the top of the sliding support is connected with the air bag release device; the driving mechanism comprises a rack arranged in the track in the same direction and a support gear installed at the lower end of the sliding support, the support gear is meshed with the rack, an air bag releasing device is installed at the upper end of the sliding support, the transmission mechanism is installed on a side support assembly of the sliding support, and the support gear drives the adjusting mechanism through the transmission mechanism. The adjusting mechanism is used for adjusting the adjustable valve to change the inflation volume proportion of the forward air bag and the lateral air bag. The ratio of the air output of the forward air bag to the air output of the lateral air bag can be changed no matter the seat backrest rotates or the seat body slides front and back, and passengers in the rear row are protected from being hurt by impact force generated when the air bags are opened.

The invention discloses a simulation testing device and method for bituminous pavement pore water pressure. The device comprises a bituminous concrete sample, an open container and a pressure container, wherein the bituminous concrete sample and the open container are located in the pressure container, the portion between the bottom of the bituminous concrete sample and the opening annular portion of the open container is filled with a bonding agent, the side wall of the bituminous concrete sample is coated with the bonding agent, a first pressure sensor used for measuring outer water pressure of the bituminous concrete sample and a second pressure sensor used for measuring bottom water pressure of the bituminous concrete sample are arranged on the side wall of the open container. The method includes the steps that after the prepared bituminous concrete sample and the open container are placed in the pressure container, the pressure sensors, a piston and a seal pressure container are installed, a control flow path is selected to start testing, and data of the pressure sensors is collected. Directional movement of pore water is achieved through the device, and the response regularity of dynamically-changed bituminous concrete pore water pressure under the external water pressure action can be tested.

The invention provides a seal testing device and system for a rotary disc bearing. The seal testing device comprises an outer ring sealing cap used for being connected with the end surface of one side, backing on the sealing ring, of the outer ring of the bearing in a sealing mode, and further comprises an inner ring sealing cap used for being connected with the end surface of an inner ring of thebearing in a sealing mode; after the outer ring sealing cap and the inner ring sealing cap are connected with the bearing, and a sealing inner cavity is enclosed by the outer ring sealing cap and theinner ring sealing cap and the bearing; a gas charging connector used for being connected with a high-pressure gas source and charging compressed gas into the sealing inner cavity is arranged on oneof the outer ring sealing cap and the inner ring sealing cap, a pressure detecting device used for communicating with the sealing inner cavity is further arranged on one of the outer ring sealing capand the inner ring sealing cap, and the pressure detecting device judges the sealing property of the bearing by detecting whether the pressure in the sealing inner cavity changes or not. According tothe sealing testing device and system for the rotary disc bearing, the rotary disc bearing does not need to be subjected to installation detection, and the problem that the seal testing efficiency islow due to installation and dismantling is solved.