51results about How to "Prevent breathing" patented technology

Methods and systems are described to automatically obtain and analyze a lung airway gas sample from the breath of a person for compositional analysis. These techniques may provide an improved method for example for accurately and reliably measuring nitric oxide for asthma assessment in young children and non-cognizant patients.

The invention discloses an orthopedic device for correcting noses. The device comprises a support, a sleeve ring, an inner shaft, splints, control buttons, rubber columns, connecting plates, a telescopic rod, nasal plugs, air inlets, threaded tubes, threaded joints, support rods, air outlets, joint balls, vibration pumps, power blocks and a spring. The invention has the beneficial effects that theinside of the nasal plug is hollow, and the support rod and the nasal plug at the bottom are connected with the threaded joint through the threaded tube so that when the nasal plugs are inserted intothe nostrils, the hot air exhaled by the nostrils can flow out along the inside of the support rods, preventing the nasal plugs from blocking the nostrils and affecting the breathing of the user, making the user uncomfortable when using the device. Moreover, the support rods and the nasal plugs are convenient to disassemble, facilitating to clean the nasal plugs; the sanitation of the device is ensured; the vibration pump is arranged inside the splint, and the vibration pump is connected to the rubber columns through the joint balls, so that the rubber columns can massage the nose.

The invention provides a digital communication controller and a control method. The controller is mainly composed of a display board, an audio board and a digital processing board, wherein the audio board comprises a power circuit, an audio receiving amplifier, a microphone signal compression amplifier, a volume gating and control digital output circuit and a switching circuit. Received audio signals are subjected to voltage and power amplification through the audio receiving amplifier and are then converted to differential output, differential input is converted to single-end input for received microphone signals through the microphone signal compression amplifier, and compression amplification and transmission out are then carried out. The communication controller is not subjected to electromagnetic interference, breath sounds can be filtered well, and the speech definition is enhanced.

A FaceLace mask holder has a length of a flexible elongate member. The flexible elongate member has a pair of ends with a connector attached to each end. The length of flexible elongate member can be 6 inches or more and can be worn as a necklace. The connectors are configured to attach to ear loops of a facial mask. The FaceLace mask holder when attached to the loops of the mask allows the wearer to unmask from his or her face mask while allowing the mask to remain hanging about the wearer's neck in a ready to don position.

The invention relates to disc brake pad production equipment and method. The disc brake pad production equipment comprises a rack assembly, a weighing mechanism, a truss conveying mechanism and a steel backing conveying mechanism are arranged on the rack assembly. The walking input end of the weighing mechanism is located at last-pass raw material output ends, and is used for allowing brake pad raw materials to drop and be output after weighing the brake pad raw materials. The walking initial end of the truss conveying mechanism is located at the output end of the weighing mechanism and is used for weighing the raw materials and quantitatively outputting the raw materials at the walking tail end. The steel backing conveying mechanism is used for the truss conveying mechanism to quantitatively convey the raw materials into a ballasting mold and covering the raw materials with steel backings at the walking tail end and in the ballasting mold. A glue-injection machine is added to inject glue liquid, and a vibration motor is arranged to vibrate. The disc brake pad production equipment is reasonable in design, compact in structure and convenient to use.

The invention discloses a gas injection oil production process in a double-layer oil pipe. The gas lift process comprises the following steps that a small oil pipe is put into a main oil pipe, and a gas lift valve is arranged on the small oil pipe; nitrogen or natural gas is injected into the small oil pipe; and oil is discharged from the annular spaces of the small oil pipe and the main oil pipe,and gas lift production is carried out. The process has the beneficial effects that when a conventional gas lift pipe column is injected with nitrogen or natural gas, the outer wall of an oil pipe and a casing pipe are seriously corroded, the casing pipe can be well protected from being corroded, and oxygen-containing gas does not directly contact the casing pipe; a gas exchange lifting pipe column or a gas injection pipe column of an original well production pipe column is avoided, the well repairing period is reduced, the yield is improved, and the operation cost is saved; and later leakagefinding, leakage blocking and channeling plugging workover are reduced, and operation cost is saved.

The invention provides an exhaust gas protection and collection system for an injection molding machine. The exhaust gas protection and collection system comprises a movable support and a fixed support. The fixed support is provided with a left mold. The movable support is provided with a right mold, wherein a mold cavity is formed by the right mold and the left mold. A collection cover extending to the position above the mold cavity is installed at the top of the fixed support. A draught fan is arranged at the top of the collection cover and communicated with an exhausting pipe. A gas insulation hanging curtain is arranged at the portion, close to the operation side, of the collection cover. A pair of sliding rails are arranged at the top of the movable support. The collection cover is supported on the sliding rails. By the adoption of the exhaust gas protection and collection system for the injection molding machine, due to the fact that the gas insulation hanging curtain, the collection cover, the draught fan and the exhausting pipe are arranged on the operation side of the injection molding machine, in the mold opening process of the injection molding machine, a molded finished plastic product can be conveniently taken out along a seam in the gas insulation hanging curtain, operators can be prevented from breathing smoke particles through the gas insulation hanging curtain, the smoke particles near the molds can be quickly absorbed through the collection cover and the draught fan, air pollution is reduced, and the human body is prevented from being hurt by the smoke particles.

The present invention provides a functional mask that is a mask that covers a user's nose and mouth, has hanging members connected on both sides thereof, is made of a fabric material, and comprises: a frontal member formed at the front thereof; a first cover attached to cover the inner surface of the frontal member; a filter member interposed between the frontal member and the first cover; and a top blocking member attached in a widthwise direction to the inner top portion of the first cover. The functional mask according to the present invention is completely pressed against a user's face so as to block the entry of external impurities such as fine dust and pollutants, provides a secure wearing feel, prevents fogging of glasses when the mask is worn, and enables the filter member and an antibacterial member to be attached and detached such that replacement of same is made easy and the mask can be used hygienically, thereby having possibilities for industrial use.

The invention belongs to the field of mechatronical application, and in particular relates to a robot for indicating a vehicle to move. The robot comprises a head part, a left arm, a right arm and a body, wherein a first motor, a third motor and a sixth motor are mounted in the body; the first output shaft of the first motor is mounted upwards vertically; the head is mounted on the first output shaft; the third output shaft of the first motor is mounted upwards vertically; a second motor is fixedly arranged on the third output shaft; the second output shaft of the second motor is perpendicular to the third output shaft; the upper end of the left arm is fixedly arranged on the second output shaft; the sixth output shaft of the sixth motor is mounted upwards vertically; a seventh motor is fixedly arranged on the sixth output shaft; the seventh output shaft of the seventh motor is perpendicular to the sixth output shaft; the upper end of the right arm is fixedly arranged on the seventh output shaft. The robot has the beneficial effects that the robot can replace conventional traffic police to command traffic, the command postures are clear and standard and good in alarming effect, the workload of the traffic police can be alleviated, the traffic police can be prevented from breathing air with tail gases and dust in outdoor places for a long time, and the physical and psychological health can be facilitated.

The application relates to hydrogen concentration estimating method and system for a fuel cell. A hydrogen concentration estimating method for a fuel cell includes: measuring a flow rate of air supplied to a fuel cell stack, and comparing the measured flow rate of the air with a predetermined flow rate; determining a model of an air processing system according to a comparison result; and estimating hydrogen concentration of a fuel processing system based on the determined model of the air processing system.

A helmet breath guard add-on which is capable of effectively preventing steam formation in a helmet shield, thereby removing inconveniences when wearing a helmet, is disclosed. The breath guard may be made from a flexible yet solid elastomeric material providing for an adequate elastic adjustment, and allowing a fit to a wide variety of different helmet user faces. Preferably, the single piece nature of the breath guard allows for the prevention of leaks for adequate helmet fog reduction. The elastic nature of the material allows the breath guard to generally keep its shape even when distorted from the putting on and the removal of the helmet.

The invention discloses a super-hydrophobic porous chitosan / Ag@AgCl-TiO2 composite material and an environmentally-friendly mask. Chitosan serves as a raw material, polyvinyl alcohol serves as a flexible agent, silica gel serves as a pore forming agent, Ag@AgCl-TiO2 serves as functional particles, and the super-hydrophobic porous chitosan / Ag@AgCl-TiO2 composite material which comprises criss-crossmicro-nano pore channels is formed on a sterile medical gauze framework through hydrophobic nano-SiO2 sol after-treatment. The environmentally-friendly mask uses the composite material as an independent assembly and disassembly function layer, and therefore cleaning and replacement are convenient. The composite material can effectively resist the inhalation of fog and haze particles, effectivelyavoid droplet transmission of bacteria, viruses and the like, and has a self-cleaning effect under the condition of illumination of sunlight, ultraviolet light and the like. In addition, the compositematerial has the super-hydrophobicity, and the phenomena that the composite material swells in the exhalant weak-acidity water vapor, the pore channels are blocked, and breathing is affected can be avoided. As a result, the environmentally-friendly mask can be repeatedly used and is suitable for the regions with fog and haze and the novel coronavirus pneumonia epidemic situation medium and low risks.

The invention discloses an electric spark machining head device which comprises a bottom plate, wherein a U-shaped plate is fixedly connected to the upper surface of the bottom plate, two groups of sliding holes are formed in the upper surface of the U-shaped plate, a push plate is arranged above the bottom plate, two groups of sliding rods are fixedly connected to the upper surface of the push plate, and an electric spark mechanism is fixedly connected to the bottom surface of the push plate. According to the electric spark machining head device disclosed by the invention, air can be injected into a sealing box through an air blower, so that the air in the sealing box can be sprayed out through a spray head, waste gas is blown leftwards, and air in a filter box can be pumped out in cooperation with an exhaust fan, and therefore, the filter box can extract waste gas through an exhaust tube and a guide cover, workers are prevented from breathing the waste gas, and the problem that during machining, the workers can inhale gas containing a large number of metal particles due to gasification of metal on the surface of a machined part is solved.

The invention relates to an air sterilization and disinfection method and system based on the plasma technology. The air sterilization and disinfection system comprises a shell, a power source, a draught fan, a plasma generator and flexible cloth, wherein the power source, the draught fan, the plasma generator and the flexible cloth are arranged in the shell. The power source is used for supplyingpower to the plasma generator and the draught fan. The flexible cloth is arranged on the outer side of the plasma generator. Water, containing plasmas, generated by the plasma generator is attached to the surface of the flexible cloth. An air inlet and an air outlet are formed in the shell, a ventilation channel is formed in the shell, and the air inlet and the air outlet are formed in the two sides of the flexible cloth. By means of the air sterilization and disinfection system, the plasma technology is adopted, water and a plasma polar plate are adopted for generating water containing the plasmas, the water containing the plasmas has the high oxidizing property and can generate a redox reaction with bacteria and various microorganisms, and the purpose of sterilization and disinfection is achieved.

The invention discloses a baby carriage and a seat pocket mechanism. The baby carriage mainly comprises a frame, a seat pocket fixing rod and a seat pocket. The seat pocket fixing rod is provided with multiple locking ports from bottom to top. A lock catch device is installed on the seat pocket and matched with the locking ports so that the seat pocket can move up and down relative to the seat pocket fixing rod. When the position of the seat pocket needs to be adjusted, only the lock catch device needs to be unlocked, the seat pocket is pulled to be vertically adjusted to the needed height, the lock catch device is matched with the locking port corresponding to the height to achieve the locking function, and therefore the height of the seat pocket is adjusted and a baby has multilayer view when sitting on the seat pocket. In addition, safety use of the baby carriage can be guaranteed by arranging a corresponding lock catch structure; meanwhile, when the baby carriage needs to be folded, a push rod can be allowed to be rotated only by pulling of a pull handle, and the folding function is achieved; and when the baby carriage is pushed to make a turn, two front universal wheels turn in the same direction, and the baby carriage is convenient to push.

The invention discloses carving equipment capable of clearing wood chips and carrying out grinding. The carving equipment comprises an equipment box body, wherein a transmission cavity is fixedly connected to the end wall of the lower side of the equipment box body, and a transmission device is arranged in the transmission cavity; a machining cavity is formed in the equipment box body, a fixing table is fixedly connected to the end face of the lower side of the machining cavity, and a fixing device is fixedly connected into the fixing table; a moving box is fixedly connected to the end face ofthe right side of a Z-axis sliding block, a machining device is fixedly connected into the moving box, and a grinding device is fixedly connected into a grinding box; an auxiliary cavity is fixedly connected to the end wall of the lower side of the equipment box body, and a clearing device is arranged in the auxiliary cavity; and a fan box is fixedly connected to the end wall of the right side ofthe equipment box body, and a collecting device is arranged in the fan box. According to the carving equipment capable of clearing the wood chips and carrying out grinding, automatic carving machining and grinding integration can be achieved on wood, meanwhile, the wood chips generated by machining can be cleared and collected, and the use efficiency is high.

The invention discloses a method for actively killing injurious insects in a grain bulk by using a gas-solid two-phase flow. The method comprises the following steps: spraying out powder by using a power sprayer, wherein the powder is mixed with air above the grain bulk or air in a ventilating duct to form a gas-solid two-phase aerosol; forming an air flow in the grain bulk by using a ventilator; enabling the gas-solid two-phase aerosol to move along with the air flow to form the gas-solid two-phase flow; and enabling the gas-solid two-phase flow to enter into the grain bulk via gaps among grains in the grain bulk to be actively contacted with injurious insects among the grains for actively killing injurious insects. By selecting proper insecticidal powder and selecting the gas-solid two-phase flow to apply powder, the insecticidal powder is fully and uniformly contacted with the grains and the method is low in requirement on leakproofness of the grain bulk, temperature, pest species, humidity and the like, easy to operate and harmless to human body.

An apparatus is provided for shading a sunbather's head and neck from the sun. The apparatus includes a canopy having a plurality of spaced apart ribs affixed thereto. A first end of each of the ribs is hingedly connected to and radiates from a first hub. There is a plurality of spaced apart braces having a first end hingedly connected to and radiating from a second hub and a second end of each of the braces is hingedly connected to one of the ribs. Further included is a mechanism that is engageable with each of the first and second hubs for extending and retracting the canopy. There is also a base member having at least three legs pivotally connected together. A top portion of the base member is hingedly connected to a second end of at least one of the ribs for supporting the canopy a predetermined height above ground.

The invention discloses a method for manufacturing an automatic blackboard eraser, which comprises a blackboard, a traction device, a blackboard eraser slot, a blackboard eraser and a sliding bar, wherein the traction device is arranged above the blackboard, the sliding bar is arranged below the blackboard, and two ends of the blackboard eraser slot are connected with the traction device and the sliding bar respectively. The manufacturing method comprises the following steps: the traction device is fixedly arranged above the blackboard, and the sliding bar is fixedly arranged below the blackboard; one end of the blackboard eraser slot is fixedly arranged on a belt of the traction device, and the other end of the blackboard eraser slot is sheathed on the sliding bar; and a switch, a power supply and a counter are arranged on one side of the blackboard, and the power supply, the traction device, the counter and the switch are connected by leads so as to form a closed loop. Compared with the prior art, by adopting the structure, the blackboard eraser can automatically wipe the blackboard under the driving of the traction device, thus being time-saving and effort-saving, having no situation that some places can not be wiped due to shortage of a person, and also being capable of avoiding breathing of chalk dust and beneficial to health.

The invention discloses a full-automatic coal rock gas desorption and resistivity measurement device. The device comprises a first box body, a coal rock test part is arranged in the first box body; two copper sheets are symmetrically and fixedly connected to the two ends of the coal rock test part, a resistivity measuring instrument is arranged outside the first box body, the sides, away from thecoal rock test part, of the copper sheets are electrically connected to the electrical input end of the resistivity measuring instrument through first wires, and one side of the first box body communicates with a first pipe body. According to the invention, resistivity measurement is carried out by using the resistivity measuring instrument; the gas desorber is used for carrying out desorption treatment on the gas; and then a conclusion can be obtained through comprehensive analysis of data, the gas can be purified through the filter screen plate, sterilization treatment is conducted through cooperation of the ultraviolet lamp plate and the photocatalyst plate, further purification treatment can be conducted on the gas through the activated carbon plate, and it is avoided that experimenters breathe harmful gas in the experiment process.

A device for treating sleep disorders such as snoring and sleep apnea comprising an upper portion, and a lower portion; wherein a first bottom surface of the upper portion, is joined to a second top surface of the lower portion using a sealant. A method of treating sleep disorders such as snoring and sleep apnea includes using an oral appliance, and a positive airway pressure machine for assisting a user to breathe through the nose.

The present invention is applicable to the technical field of food processing, and provides a powder seasoning packaging equipment, including a frame body, a packaging bag, a shielding cloth, a support plate and a dust removal and return mechanism, and the shielding cloth is arranged inside the frame body for Guide and block the movement of powder seasoning; the support plate is installed on the inner wall of the frame; the dust removal and return mechanism is installed at the bottom of the shielding cloth, including flow channels and symmetrically arranged return flow on the support plate hole; the flow channel communicates with the backflow hole, and is used to reintroduce the powder seasoning in the upwelling process into the packaging bag with the shielding cloth. It can complete the dust removal process, effectively restrain the powder from spreading outward, and at the same time guide the upwelling powder seasoning back into the packaging bag, so as to prevent the packaging personnel from breathing the powder and ensure their health.

The invention discloses a clean type winding device for non-woven fabric processing. The clean type winding device comprises a base table, wherein an assembling frame is fixedly mounted at the top of the base table; a driving motor is fixedly mounted on the left side of the assembling frame; the output end of the driving motor is fixedly connected with a winding shaft; the winding shaft extends into the assembling frame; and a cloth winding roller is fixedly mounted on the surface of the winding shaft. According to the clean type winding device for non-woven fabric processing, electrons emitted by an electrostatic generator are combined with dust or fluff in air, so that the dust or fluff is electrified; and the air enters a sealing barrel cover through a dust removal pipe (a one-way inlet valve in the dust removal pipe enables the air to enter the sealing barrel cover only through the dust removal pipe), the dust or fluff in the air become charged particles, and a permanent magnet has a stable magnetic field, so that the dust or fluff in the form of charged particles deflects under the action of the magnetic field and Lorentz force, and falls into a dust storage box through the dust removal pipe.

The invention discloses a treatment device for fume generated in conversion process of vanadium pentoxide by ammonium metavanadate. The device is characterized by comprising a first-stage spraying temperature reduction device, a second-stage sulphuric acid spraying device, a third-stage sulphuric acid spraying device, a fourth stage alkali solution spraying device, a power supply control box, a diluted sulphuric acid tank, a alkali solution tank and a tap water inlet pipe, wherein the first-stage spraying temperature reduction device, the second-stage sulphuric acid spraying device, the third-stage sulphuric acid spraying device and the fourth stage alkali solution spraying device are sequentially connected, an air inlet is formed in one side of the first-stage spraying temperature reduction device, a first-stage corrosion preventing plastic self-absorbing pump is arranged on the other side, and an electric thermal coupling probe which is electrically connected with the power supply control box is arranged in the first-stage spraying temperature reduction device. The treatment device has the advantages that fume generated in the process in which the vanadium pentoxide is convertedby the ammonium metavanadate can be effectively treated and recycled to be reused, the atmospheric pollution can be effectively reduced, the influence on the respiration of a human body is avoided, the economical benefits are created, wastes are turned into treasures, dual-purpose is achieved, and the treatment device is suitable for popularization.

The invention discloses an anti-novel coronavirus odor-free public toilet, and relates to the field of public health epidemic prevention facilities. The anti-novel coronavirus odorless public toilet comprises singe toilet bodies, wherein the three surfaces of each single toilet body are provided with folding screens, one surface of each single toilet body is provided with a door, an air outlet isformed in the lower part of the rear folding screen of each single toilet body, close to a squatting position, each air outlet is connected with an exhaust fan through an air exhaust pipe, and the exhaust fans are connected with an air sterilizer through an exhaust manifold; the start-stop of the exhaust fans is controlled by a controller; the folding screens are arranged on the ground in a sealing mode, the bottom of each door is provided with a sealing rib, and each door is internally provided with an electric door lock. Compared to the prior art, through air suction and air exhaust of the exhaust fans, exhaust gas discharged from a person using the toilet or carried with novel coronavirus can be effectively discharged out of the toilet in time; and the exhaust fans are connected with the air sterilizer through the exhaust manifold, and the exhaust gas discharged from the person using the toilet is rapidly discharged from the air exhaust pipes and sterilized and disinfected, so thatthe situations that the discharged odor is inhaled by the person using the toilet, the pollution is caused or virus is discharged to infect others are avoided, and meanwhile, the situations that odorof others is breathed, and infection caused by virus of others is caused are avoided.

The invention provides a drug inhalation assistance device which comprises a mask and a connector. The connector is fixedly connected to the inner side of the mask, and the connector comprises a firstchannel, a second channel and a third channel which are communicated with one another; one end of the first channel is connected with a telescopic air pipe or an air storage device, and when the first channel is connected with an air storage device, a first one-way valve is arranged between the first channel and the air storage device; the telescopic air pipe or the air storage device penetratesthrough the mask; the second channel is connected with an atomization cavity, and a second one-way valve for controlling the medicine to flow from the atomization cavity to the third channel is connected in the second channel; the atomization cavity is provided with a medicine injection port, and one side of the atomization cavity is connected with oxygen supply equipment; and one end of the thirdchannel is connected with a respirator. By the adoption of the technical scheme, the medicine inhalation assistance device can be used for aerosol inhalation treatment and inhalation anesthesia, children can easily accept medicine inhalation, and the medicine inhalation assistance device is simple in structure, easy to carry and capable of being applied to various occasions.

The invention discloses a multifunctional welding mask. The multifunctional welding mask comprises a main body, wherein a helmet cavity which is provided with a downward opening and penetrates through front and back is formed in the main body; rotary cavities which are provided with openings towards front and back sides are formed in front and back sides of the main body; an air inlet which penetrates through front and back is formed in the upper side in the main body; one wall, close to the air inlet, of each rotary cavity is in rotary connection with a rotary shaft; one end, far away from the air inlet, of each rotary shaft is fixedly connected with a rotary plate; and a torsion spring is fixedly connected between one end face, close to the air inlet, of each rotary plate and one wall, close to the air inlet, of each rotary cavity. According to the multifunctional welding mask disclosed by the invention, a photographed picture can be displayed on a display screen in the mask through a camera, and light rays generated in a direct-vision welding process can be prevented from being injured to eyes; meanwhile, the device can be used for adjusting the brightness of the picture seen by the camera and effectively helping workers to observe better; and meanwhile, the device can also be used for preventing the workers from breathing smoke dust generated in the welding process and protecting the human health of the workers.