438 results about "Respirator" patented technology

The invention relates to a test device for bidirectional breathability measurement of textile samples, in particular masks.

The invention relates to a closed powder bag breaking feeding device which comprises a material conveying barrel assembly and a bag breaking barrel assembly, the material conveying barrel assembly is provided with a material conveying barrel body, the material conveying barrel body is hinged to a clamping sealing cover, the clamping sealing cover is composed of two semicircular cover bodies, anti-skid sealing strips are arranged on the opening and closing sides of the two semicircular cover bodies, an upper respirator is arranged on the clamping sealing cover, and a lower respirator is arranged on the bag breaking barrel assembly. A plurality of supporting rods are arranged at the bottom of the material conveying barrel in the radial direction, and a sealing ring is arranged on the outer wall of the material conveying barrel. The bag breaking cylinder assembly is provided with a bag breaking cylinder body, a shaft seat is arranged in the center of the bag breaking cylinder body, a bag breaking cone is arranged on the shaft seat, the bag breaking cone is provided with a cone rod and a plurality of cutting knives, a lower respirator is arranged on the outer wall of the bag breaking cylinder body, and the material conveying cylinder body is inserted into the bag breaking cylinder body and connected with the bag breaking cylinder body in a sealed mode through a sealing ring. Bag breaking and feeding are carried out in a closed and breathable space, dust is prevented from overflowing, a healthy operation environment is provided, feeding loss is reduced, and feeding efficiency is improved.

The invention discloses an intelligent air supply mask, and relates to the technical field of protective masks, the intelligent air supply mask comprises a mask main body, and the mask main body is used for covering the mouth and nose of a wearer to form a breathing space; the mask further comprises a filter element assembly, an air outlet valve, a sound transmission assembly, a pressure sensor, an air supply assembly, a control device and a power supply assembly which are arranged on the mask body, the filter element assembly communicates with the breathing space and filters inlet air, the filter element assembly comprises a filter box and a filter element, the filter element is arranged in the filter box, and the filter element is a corrugated filter element; the air outlet valve is communicated with the breathing space for exhausting; the sound transmission assembly is used for transmitting sound; the pressure sensor is used for detecting gas pressure in the breathing space; the air supply assembly is used for assisting in supplying air into the breathing space; the control device controls the air supply assembly to work according to the gas pressure data; the power supply assembly is used for supplying power. Auxiliary air supply can be carried out, follow-up adjustment is achieved, the stuffiness feeling of a wearer is reduced, the service life of the filter element can be prolonged, and the dust containing degree of the filter element can be improved.

The invention belongs to the technical field of respirators, and particularly relates to an oxygen production tank and a respirator applying the oxygen production tank, the oxygen production tank comprises a tank body for gas circulation, a plurality of partition plates are arranged in the tank body along the gas flowing direction, and the partition plates are arranged in parallel along the direction perpendicular to the gas flowing direction; a reaction flow channel is formed in a gap between every two adjacent partition plates, the side wall of each reaction flow channel is provided with groove positions for positioning a medicament, the groove positions are in a long strip shape in the gas circulation direction, and the multiple groove positions are sequentially arranged side by side in the direction perpendicular to the gas circulation direction; the plurality of slots on the two adjacent clapboards are arranged in a staggered manner; according to the invention, the medicament can be ensured to be firmly fixed and stable in the reaction flow channel without moving, so that the influence of dust generated by the movement of the medicament on the breath of a user can be greatly reduced; and the reaction can be performed in sequence along the flowing direction of the gas, so that the overall reaction balance of the medicament is ensured, the use efficiency of the medicament is improved, and waste is avoided.

The invention discloses an intelligent water level monitoring, regulating and controlling system and method based on a breathing humidifier. A data acquisition module monitors the real-time temperature and humidity in a humidifying water tank, the temperature and humidity of the external environment and the flow of an air source and transmits the acquired data to a processing and identifying module; the processing identification module receives the temperature, humidity and flow data of the data acquisition module, carries out calculation to obtain a key difference value and a change rate index, and carries out function training on the monitored data by constructing a water level monitoring data model; the main control module executes a corresponding humidifying water infusion instruction to the flow control module, and a flow adjusting valve is controlled to adjust the humidifying water infusion water amount; and the alarm feedback module receives an alarm instruction of the main control module and sends out an alarm prompt tone when the processing identification module monitors abnormity. Internal and external data of the breathing humidifier can be monitored in real time, the water level of the humidifying water tank is intelligently regulated and controlled through the data model so as to reach the target temperature and humidity range of the patient end, and therefore the most reasonable airway humidifying scheme is provided for a patient.

The invention relates to the technical field of respirators, and discloses a respirator flow dynamic adjusting system based on airflow sensing, which is characterized in that after starting, a multi-mode sensing module acquires spatial flow velocity distribution and dynamic characteristics of respiratory airflow, and generates a composite data flow fused with flow field information; the composite data flow is subjected to nonlinear analysis to generate a state vector representing breathing stability, and the state vector is used for identifying fluid abnormal risks; the state vector generates an optimized execution instruction set by the self-adaptive control engine in combination with the energy state of thermoelectric conversion; the execution instruction set drives the piezoelectric valve and the shear response humidifying layer to cooperatively adjust the flow and the humidity, and outputs physiologically matched breathing gas; fusion collection of spatial flow velocity distribution and dynamic characteristics of respiratory airflow is achieved through the multi-mode sensing module, the limitation of traditional single-point measurement is broken through, and the sensing precision is remarkably improved; a breathing chaos index is constructed through nonlinear kinetic analysis, and early warning of the breathing rhythm stability and the fluid abnormal risk is achieved.

A set of designs for an electrically heated respirator / face mask to kill or deactivate airborne viruses and bacteria by creating a seamless thermal and / or humidity chamber / barrier around the wearer's nose and mouth area; in addition to efficiently filtering the tiny particles according to NIOSH N95 standards, it reduces the chance of contracting the disease. The designs include various combinations: a disposable or reusable N95 respirator with or without an exhalation valve, disposable or reusable medical face mask, both with or without integrated and replaceable filter layers, and a reusable respirator with filter cartridges. Each design comprises multiple layers with an active thermal filter with a heating element, which is made of graphene. The respirator is connected via a USB cable to a power unit. A control module is used to turn the device on and off and optionally control the inner temperature and humidity through sensors.

The utility model discloses a standby power type air supply long pipe respirator which comprises a respirator main machine and an air inlet chamber, the air inlet chamber is fixedly assembled at the upper right corner in the respirator main machine, a processing chamber is fixedly assembled at the lower left corner in the respirator main machine, and two sets of parallel air inlets are formed in the left side of the outer wall of the processing chamber. A group of negative pressure fans are fixed at the air inlets, a group of filter elements are fixedly clamped at the air inlets, and an automatic brushing mechanism used for cleaning the filter elements to prevent blockage from affecting breathing is arranged in the treatment chamber. According to the standby power type air supply long pipe respirator, by arranging the automatic cleaning and brushing mechanism, particulate matter is prevented from being attached into the filter elements to affect the air flow, it is guaranteed that one of the two sets of negative pressure fans can work smoothly when the respirator is used, and even if one set of filter elements is blocked, the other set of filter elements are not affected to be used; the influence of the blockage phenomenon in the working process on breathing safety is prevented, and the problem of blockage of the filter element is solved.

A respirator has a shell that defines a breathable air zone for a user wearing the respirator. An air flow control system for the respirator has an air delivery conduit within the shell of the respirator, a valve member moveable relative to the air delivery conduit and within the shell to vary the amount of air flow through the air delivery conduit, and a valve actuator outside of the shell of the respirator. The valve actuator is manipulatable by a user of the respirator while wearing the respirator to control movement of the valve member.

1. The name of this design product: Neck-hanging fresh air blower and mask integrated device. 2. Purpose of this design product: used for dust prevention and air filtering. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the design points: three-dimensional picture.

The invention provides a high-precision simulation method for filtering performance of a mining dustproof mask fiber structure. The high-precision simulation method comprises the following steps: establishing a randomly distributed fiber aggregate model; a transient state is activated in Fluent, a turbulence model Realizable k-epsilon is selected, the pressure drop of a mining dust mask and the flow field characteristics of nanoscale fiber gaps are simulated and predicted, a DPM model is activated, the migration track of 0.3-10 [mu] m inhalable particles is tracked, and the dust trapping process of a fiber structure is simulated in the transient state environment. By simulating the influence of different fiber diameters, fiber volume fractions, airflow flows and the like on the filtering performance of the fiber structure of the mining dust mask, the research and development of the high-filtering-performance mining dust mask can be guided in a targeted manner, and the influence of the internal fiber structure of the dust mask on the filtering performance of the dust mask is mastered.

1. The name of the design product: respirator ventilation tube holder. 2. The use of the design product: ventilation tube holder for high flux respirator, to avoid falling off in use. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

The utility model relates to the technical field of respirator protective articles, in particular to a mask sling hot shaping harness which comprises a first module, a second module and a heating mechanism, the second module and the first module are distributed up and down and are both of a long-strip-shaped cuboid structure, and the first module and the second module are fixedly connected through a hinge and can be opened and closed; a first material groove and a second material groove are formed in the side wall of the connecting position of the first module and the second module respectively and form a containing groove used for restraining a hanging belt. And heating mechanisms are mounted in the module I and the module II. The hot shaping harness for the mask hanging belt is simple in structure and convenient to install, and solves the problems that the hanging belt is uneven and curled and deformed in the welding process of the mask hanging belt.

The utility model discloses a respirator structure of a new energy gearbox. The respirator structure comprises a box body of the new energy gearbox. The respirator body is arranged at the outer port of the bent pipe and is used for filtering dust in the air sucked by the oil tank; the bent pipe is arranged on the side wall of the box body, communicates with the interior of the box body and is used for communicating the box body with the respirator body; a transition sleeve is arranged between the bent pipe and the air hole of the box body; an anti-splashing special-shaped pipe structure and an air pressure balance hole structure with balanced air pressure are additionally arranged, splashing oil in the gearbox is blocked for multiple times, little oil enters the respirator, and therefore it is guaranteed that the respirator cannot leak oil, and the problems that when the oil level is high and the output rotating speed is high, the oil quantity of the splashing oil is large, and oil leakage is caused are solved. The problem that oil enters the respirator body to cause oil leakage is solved, the phenomena of running, overflowing, dripping and leaking of the oil of the gearbox are reduced, and the reputation and the market competitiveness of the product are improved.

The invention discloses a dustproof and anti-poison series labor protection appliance, and particularly relates to a valve cavity isolation anti-return exhaust valve structure. The mask comprises a mask shell, a double-valve-box assembly, an inter-valve isolation cavity, a valve plate positioning nail, an outer valve plate, an outer sealing opening, an inner sealing opening, an inner valve plate, a filter box clamping position and an air filter box. The double-valve-box air exhaust valve is mainly characterized in that a traditional one-way air exhaust valve is replaced with a double-valve-box assembly, an inter-valve isolation cavity is formed between an outer valve plate and an inner valve plate, and dust is blocked through the Venturi effect and the trapping effect of a low-pressure vortex area; even if dust is clamped between the outer valve plate and the outer sealing opening, the dust can be removed during next expiration, and it is guaranteed that no dust is accumulated on the edge of the inner valve plate. The problems that an existing dustproof mask, an existing gas mask and an existing mask with a valve are not tightly closed, exhaust is not smooth, and closing of a valve plate is delayed due to the fact that dust is stuck to a sealing opening are solved, and the protection performance and the wearing comfort are improved.

A test fixture facilitates non-destructive testing of a protective mask. The test fixture includes a mock facial structure, a clamping form that makes a seal around at least part of the facial structure, and can employ the retaining straps of the protective mask to a make a seal around at least part of the facial structure. In use, the protective mask is tested in situ on the facial structure. In some examples, the clamping form has a negative contour of the mock facial structure or of the outer surface of a protective mask that is to be tested. The testing can include repetitive testing of the fit, structural components (e.g., ultrasonic welds and straps), and the degradation of materials as a function of donning / doffing or environmental factors (e.g., temperature and humidity).

1. Name of the designed product: half-face respirator. 2. Use of the designed product: for dust and toxic gas protection. 3. Design points of the designed product: in shape. 4. Picture or photo best showing the design points: perspective view.

The present invention relates to a portable fill-type air respirator equipped with a combination fill and multi-stage decompression structure, the emergency air respirator providing air containing oxygen to a patient in case of a fire evacuation or emergency. Specifically, without a separate decompression structure, air is rapidly supplied using a built-in decompression valve, compressed air is refilled through a filling port, and high-pressure compressed air is decompressed in multiple stages so that, at the point of discharge, as decompression has taken place multiple times in a decompression section as well as in a discharge channel, the air is discharged in a state that is comfortable for a user to breathe in. Therefore, the present invention ensures reduction in size and portability by filling a high-pressure container with high-pressure air, and supplies high-pressure air to a user at a stable pressure via multi-stage decompression.

The invention relates to a respirator for a transformer and a control method thereof.The respirator for the transformer comprises an outer barrel, an inner barrel and a breathing linkage pipe, an oil collecting assembly is arranged on the outer end face of a base plate of the outer barrel, and an oil collecting cup of the oil collecting assembly is communicated with a transition barrel only through an oil seal piece air channel at the bottom end of the transition barrel; the oil collecting cup is communicated with the outside through a first channel on the base plate, the inner barrel is arranged in the outer barrel and is divided into a plurality of filter cavities for containing filter materials by partition plates, the inner walls, opposite to the outer barrel, of the filter cavities are thickened inwards to form convex lenses, and one-way air passing channels are formed in the partition plates so that the adjacent filter cavities can be communicated in a one-way mode. The top end of a breathing channel of the breathing connecting pipe is communicated with the transformer, the bottom end is communicated with the transition cylinder, and the top end of the transition cylinder is communicated with the upstream filter cavity which is unidirectionally communicated. The technical problems that in the prior art, a respirator silica gel filter material is low in utilization rate and prone to being polluted by oil gas are solved, and the thickened inner wall of the filter cavity forms the convex lens so that the filter material in the filter cavity can be conveniently amplified during observation.

The utility model discloses folding particulate matter filter cotton for a respirator, which comprises a first filter layer, a middle filter layer and a second filter layer, the peripheral sealing edges of the first filter layer, the middle filter layer and the second filter layer are fixed together, the middle filter layer is arranged in a cavity between the first filter layer and the second filter layer, and the second filter layer is arranged in a cavity between the first filter layer and the second filter layer. The middle filter layer comprises a plurality of layers of melt-blown cloth, each layer of melt-blown cloth is of a folded wavy structure formed by multiple times of bending, the folding directions of all the layers of melt-blown cloth are the same, and folds are stacked together in a matched mode; the filter cotton is mounted on the respirator, the respirator comprises a mask body, an activated carbon filter box and an outer cover, a mounting hole is formed in the side of the mask body, a connector and a mounting groove are formed in the two sides of the activated carbon filter box respectively, ventilation mesh holes are formed in the mounting groove, the filter cotton is placed in the ventilation mesh holes, and the outer cover covers the mounting groove and is provided with ventilation holes. The air filter is light, thin and breathable, particulate pollutants in air can be effectively blocked by the multiple filter layers, and a good filter effect is provided.

The invention provides a respirator. The respirator comprises an oxygen pipe and a mouth-nose mask. The oxygen pipe is respectively provided with a main air inlet path and a control air path which are communicated with the mouth-nose mask; the main air inlet path is provided with a lever roller type valve and a folding air bag, and the folding air bag expands to extrude the lever roller type valve to be closed when the air pressure of the main air inlet path is increased; the control gas circuit is provided with a control valve, and a pressure sensing diaphragm is arranged in a shell of the control valve and divides the inner space of the shell into two parts. An air inlet hole, an air inlet and an air outlet are formed in the shell corresponding to one side of the pressure sensing diaphragm; one side of the air plug is provided with a connecting rod which is connected with the pressure sensing diaphragm; the main air inlet path is further provided with an air bag valve between the folding air bag and the mouth-nose mask, and an air bag of the air bag valve is communicated with the control air path. The mechanical feedback control system has the beneficial effects that two sets of mechanical feedback control systems which are independent from each other and are logically associated are formed through parallel double-path cooperative control and pure mechanical automatic cut-off design of the main air inlet path and the control air path.

1. The name of the design product: the main body of air-supplied respirator. 2. The use of the design product: the overall use is to provide breathable air for people in the environment where the air quality is polluted, harmful or unsuitable for breathing; the local use is as the main body of air-supplied respirator. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

A shell is provided with a water inlet channel, a water drainage channel, an air cavity, a first anti-siphon channel, a second anti-siphon channel and a flow guide channel, so that the internal air pressure and the external air pressure of the water inlet channel and the water drainage channel can be conveniently balanced; the flow guide channel can guide water to flow back to the inner container when water seeps from the first anti-siphon hole and the second anti-siphon hole, the situation that water seeps from the first anti-siphon hole and the second anti-siphon hole and then flows into the first breathing opening is avoided, the water can be prevented from flowing out to the periphery of the inner container from the first breathing opening, cleaning of the dish-washing machine can be facilitated, and the dish-washing machine is convenient to use. And meanwhile, the use experience of a user is improved. In addition, the utility model further discloses the dish washing machine with the respirator.

The utility model discloses a multi-filter element respirator which comprises an air inlet hopper, the top of the air inlet hopper is fixedly connected with an end socket communicated with the air inlet hopper, the top of the end socket is fixedly connected with an end plate, the outer wall of the end plate is fixedly connected with a fixing ring, the top of the fixing ring is fixedly connected with a cylinder communicated with the fixing ring, and the top of the cylinder is fixedly connected with a filter element. A sealing head communicated with the barrel body is fixedly connected to the top of the barrel body, a plurality of PTFE microporous filter elements are mounted on the end plate in a sealing manner, a water receiving disc is fixedly connected to the outer wall of the sealing head, and a drainage pipe communicated with the water receiving disc is fixedly connected to the bottom of the water receiving disc. The filter element can be replaced, the filtering capacity of the respirator is effectively improved, the service life of the filter element is prolonged, and the use safety is improved.

The invention discloses a valve micro lip-attaching dead-cavity-free in-mask waste gas replacement structure which comprises mask belts, an air filtering mask, an exhaust valve base, an exhaust one-way sealing opening, a one-way exhaust valve plate, a telescopic adjusting pipe, a left nose exhaust pipe, a right nose exhaust pipe and the like. By adjusting the position of the exhaust unit, the exhaust one-way sealing opening is slightly attached to the lip, the nose exhaust pipe is slightly attached to the nostril, the valve plate is directly opened by means of flowing energy of exhaled air, peripheral retention air is injected by means of the Venturi effect, exhaled waste gas is completely exhausted in real time, dead space is thoroughly eliminated, and the problems of oxygen deficit, stuffiness, fogging, stinking and high breathing resistance are solved.

The present invention discloses a respirator with a high-temperature gas condensation and reflux structure, characterized by: comprising a respirator lower cover, a respirator upper cover cooperating with the respirator lower cover; a ventilation unit comprising an exhaust port provided on the respirator lower cover and an air duct connected to the exhaust port, wherein a steam condensation structure is provided inside the air duct; the ventilation unit further comprises an exhaust baffle provided in the air duct near one side of the exhaust port, wherein the air duct baffle unidirectionally connects the air duct and the exhaust port. The present invention proposes a respirator with a built-in blower, which can quickly remove high-temperature steam from the dishwasher. The unique condensation structure in the exhaust duct can quickly cool the high-temperature steam and reflux it into the dishwasher. This structure can provide a reasonable solution for removing high-temperature gas after the dishwasher has a high-temperature steam function added, while increasing the anti-siphon function of the respirator, ensuring the internal and external pressure balance of the dishwasher cavity, and providing a better user experience.

The environment-friendly split type engine respirator comprises a cavity, a filtering part is arranged in the cavity, the cavity is provided with an exhaust port in the top, a blow-by inlet in the bottom and an oil return port, the cavity comprises an upper cavity body and a lower cavity body which are detachable, and the filtering part is installed on the top of the lower cavity body; the filtering part comprises a filtering material, and the filtering material is arranged on a supporting frame located on the cavity wall of the lower cavity and is fixed in an auxiliary mode through a spring arranged in the upper cavity; the lower portion of the cavity comprises a plurality of zigzag blades, and the bottoms of the zigzag blades are fixed to the inner wall of the cavity through a support and face the blow-by inlet. The upper cavity and the lower cavity are of a split structure, when the filter element needs to be scrapped, the upper cavity is screwed open, the scrapped filter element is taken out and replaced with a new filter element, the whole respirator does not need to be discarded, and the garbage treatment amount is reduced. And the zigzag blades can prolong the service time of the filter element, reduce the replacement frequency and further improve the environmental friendliness.

The utility model discloses a gas component monitoring and trapping device for sewage treatment, which belongs to the technical field of sewage treatment and comprises a gas collecting hood and an air pipe, the bottom of the gas collecting hood is provided with a gas inlet used for covering a pool cover of a sewage pool, the top of the gas collecting hood is provided with an exhaust port, and a gas inlet pipe opening of the air pipe is communicated with the exhaust port. A check valve is arranged at an air outlet pipe opening of the air pipe, and a gas sensor set communicated with the inside of the air pipe is arranged on the outer wall of the air pipe. Inlet gas enters the gas collecting hood from the sewage pool and then is discharged through the air pipe, and the gas sensor group on the air pipe can monitor the concentration of each gas in the air pipe, so that the reaction condition in the sewage pool can be visually reflected, and intelligent management of the sewage treatment unit is facilitated; the arrangement of the check valve enables the sewage pool, the gas collecting hood and the air pipe to form a closed space in which gas only flows out and does not flow in, no external gas enters, the gas trapping efficiency of the sewage pool can be improved, the influence of external air and weather conditions on the gas trapping effect and the monitoring result is reduced, and the real reliability of monitoring is ensured.

Improved respirator fit test devices including piezoelectric pumps that reduce noise and vibration of the device. The devices may include two or more piezoelectric pumps, wherein a first pump moves sheath air through a differential mobility analyzer and a second pump alternately moves aerosol from inside or outside a respirator through the differential mobility analyzer. A size selected portion of each aerosol sample is then moved through a condensation nuclei counter. Control circuitry enables user selection of a respirator type to be tested, wherein the differential mobility analyzer may be enabled or disabled based on the user selection. The control circuitry further enables calculation of a fit factor corresponding to a quantitative effectiveness of the respirator fitting a user based on signals from the condensation nuclei counter for each aerosol sample.

1. The name of this design product: Mask (fish-shaped folding). 2. Purpose of this design product: a mask used for dust prevention and air filtration. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the design points: three-dimensional picture.