41 results about "Oxygen breathing" patented technology

The invention discloses a diving bell air supply system for diving and an air supply method thereof.The air supply system comprises a diving bell body, a diving bell umbilical cord, a diver umbilical cord and a bell-borne air supply unit, the diving bell umbilical cord comprises an air supply pipeline and a breathing air pipeline, and high-pressure environment air is provided for the diving bell body, and breathing air is provided for operators; the clock-borne gas supply unit comprises a helium bottle, a liquid nitrogen Dewar bottle and a liquid oxygen Dewar bottle, high-pressure helium-oxygen mixed gas is stored in the helium bottle, gas outlet pipelines of the liquid nitrogen Dewar bottle and the liquid oxygen Dewar bottle are connected to the breathing gas supplementing pipe in parallel, and supplemented nitrogen and / or oxygen are / is adjusted based on the working depth of the diving clock body. The breathing air supply pipe and the breathing air supplementing pipe are connected to the inlet end of the busbar after being connected in parallel and converged, the inlet end of the busbar is further connected with a breathing air pipeline, and the outlet end of the busbar is connected with multiple diver umbilical cords. The proportion of helium, nitrogen and oxygen can be flexibly adjusted according to the current operation depth of the diving bell, and the breathing requirements of divers at different water depths are effectively met.

The invention discloses a carbon dioxide storage mask, and belongs to the technical field of medical instruments, the carbon dioxide storage mask comprises an oxygen inhalation mask body and a storage tube, the two sides of the oxygen inhalation mask body are connected with bandages capable of being bound to the head of a patient, and the portion, corresponding to the mouth and nose of the human body when the mask is worn, of the oxygen inhalation mask body is of a concave design. A storage tube is arranged in the oxygen inhalation mask body, a placement table allowing the storage tube to be connected in a vertical state is formed in the oxygen inhalation mask body, an insertion hole matched with the outer diameter of the storage tube is formed in the placement table and communicated with the inner side of the oxygen inhalation mask body, and the top end of the storage tube is inserted into the insertion hole. According to the device, displacement adjustment can be conducted on the lower gas storage tube on the upper gas storage tube according to the partial pressure of end-expiratory carbon dioxide of a patient, and therefore the space, capable of containing the carbon dioxide, of the storage tube is changed.

1. The name of the product of this design: disposable oxygen mask. 2. The purpose of this design product: It is used in medical and health care to provide clinical oxygen breathing. 3. The design key point of this appearance design product lies in the shape. 4. The picture or photo that best illustrates the design points: three-dimensional picture.

1. Name of the product in this design: Pillow (Light Oxygen Breathing Series · Zero Pressure Suspension Pillow). 2. Purpose of this design: For use as a pillow or support. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key features: the front view.

The present disclosure provides an oxygen breathing apparatus. The present disclosure provides an oxygen breathing apparatus including a hose including one end portion, another end portion opposite the one end portion, and a connector provided between the one end portion and the other end portion and configured to allow a mouthpiece to be mounted thereon; a fan connected to the one end portion of the hose; an exhalation bag connected at one side to the fan, and fluidly connected at another side to the other end portion of the hose; an oxygen supply device configured to store oxygen, and connected to the exhalation bag; and a controller configured to control driving of the fan so that the fan forms a unidirectional air flow within the hose.

The utility model relates to the field of health, in particular to a hydrogen-oxygen breathing system with a gas storage bag, which comprises an electrolytic hydrogen-oxygen generator, a breathing component, a closed cabin and a gas exchange system, the breathing assembly comprises a hydrogen inlet pipe, a hydrogen storage bag, an oxygen inlet pipe, an oxygen storage bag and a breathing mask. Wherein the hydrogen storage bag and the oxygen storage bag are respectively used for storing hydrogen and oxygen generated by continuously electrolyzing water by the electrolytic hydrogen-oxygen generator so as to meet the tidal volume required by a human body in an inspiration stage when the human body breathes each time. The oxyhydrogen breathing system with the air storage bag can absorb hydrogen more comfortably and efficiently, and particularly, harmful hydroxyl radicals in a human body can be more effectively removed through inhalation of high-concentration hydrogen.

The utility model relates to the technical field of medical instruments, and discloses an oxygen inhalation mask which comprises a mask body, one side of the mask body is fixedly connected with an adjusting belt A, the surface of the adjusting belt A is fixedly connected with a son hook-and-loop fastener, the other side of the mask body is fixedly connected with a bandage A, the surface of the bandage A is fixedly connected with a mother hook-and-loop fastener, and the mother hook-and-loop fastener is fixedly connected with the other side of the mask body. An adjusting belt B is fixedly connected to the edge of one side of the cover body. According to the oxygen inhalation mask, through the arrangement of an adjusting belt A, a bandage A, an adjusting belt B and a bandage B, the mask adapts to different patients to fix the faces, the mask body covers the faces of the patients, the adjusting belt A is attached to the bandage A, a son hook-and-loop fastener and a mother hook-and-loop fastener are attached to fix the tops of the heads of the patients, then the bandage B is inserted into a rectangular hole, the bandage B is limited, and the mask body is fixed to the head of the patients. According to the size of the head of the patient, a limiting rod is inserted into a limiting hole to fix the back side of the head of the patient, so that the mask is fixed more stably, and the comfort level of the mask is higher.

This invention discloses an oxygen mask capable of adsorbing and detecting end-tidal carbon dioxide, relating to the field of oxygen mask technology. It includes a mask body with a detection box and an adsorption box on its inner surface. The detection box contains a detection substance used to detect carbon dioxide concentration. The adsorption box contains an adsorbent substance capable of adsorbing carbon dioxide exhaled by a patient. The mask body has multiple air outlets and several oxygen channels. The air inlets of the oxygen channels are located on the outer surface of the mask body, and the air outlets are located on the inner surface. This invention effectively detects the concentration of carbon dioxide exhaled by a patient through the detection box, while the adsorption box effectively prevents the patient from re-inhaling carbon dioxide. The device has a simple overall structure, is easy to use, and has low manufacturing costs.

The invention discloses a quickly-started fire escape and fire-avoiding cabin and a use method thereof, and relates to the technical field of fire-fighting emergency escape equipment, and the quickly-started fire escape and fire-avoiding cabin comprises an expandable fire-avoiding cabin equipment box body; a fire-avoiding cabin rapid opening supporting assembly, a positive pressure oxygen supply breathing system, a human body breathing waste gas absorption circulating system, an emergency survival material storage assembly, a power battery and a communication lighting system are integrated in the box body. A multi-panel movable unfolding structure is adopted in the fire-avoiding cabin equipment box body, the fire-fighting fire-avoiding cabin is of a foldable structure, and second-level rapid unfolding is achieved through a safety linkage mechanism and an inflation supporting frame. According to the invention, when a building fire escape channel is blocked, a closed safe fire-avoiding space can be quickly built, and by matching with a positive pressure breathing guarantee module, an emergency survival material module and an external communication module, quick risk avoiding, safety protection and long-acting rescue waiting are realized; the device is convenient to store, small in occupied space and capable of being flexibly arranged in various places such as high-rise buildings and residences, and the problems that an existing fire risk avoiding device is slow in unfolding, incomplete in protection and poor in adaptability are solved.

The utility model discloses a breathing monitoring nasal mask which comprises a mask body, a filter layer, a breathing bag and a fixing band. The edge of the mask body is used for being attached to the face skin around the nose of a patient so that the nose of the patient can be covered with the mask body. The mask body is provided with an air exchange port and an oxygen catheter connector. The filter layer is mounted at the scavenging port and is used for filtering inhaled gas and absorbing moisture in exhaled gas while ventilating. The oxygen catheter connector is used for being connected with an oxygen catheter so as to introduce oxygen into the mask body. The breathing bag is provided with a first port and a second port, and the first port is connected with the outer wall of the mask body and is opposite to the ventilation port. The fixing band is connected with the cover body and used for fixing the cover body to the head of a patient. Compared with the prior art, the breathing bag expands and contracts along with breathing of a patient, and therefore the breathing frequency, the breathing amplitude and the change of the breathing frequency and the breathing amplitude of the patient can be visually reflected. The convenience of clinical monitoring is improved, the treatment cost is reduced, and the economic burden of a patient is relieved.

The utility model belongs to the technical field of medical instruments, and particularly relates to patient auxiliary oxygen supply breathing equipment which comprises a base, an outer shell is installed on the top face of the base, an inner shell is inserted into the inner side of the outer shell in a sliding mode, the inner shell comprises a pipe body, a spiral plate is connected to the outer side face of the pipe body, and an oxygen catheter is wound on the surface of the pipe body and parallel to the spiral plate. A water collecting groove is formed in the base on the inner side of the pipe body, a temperature sensor and an electric heating pipe are installed on the water collecting groove, the water collecting groove is connected with the water inlet end of a water pump through a pipeline, the water outlet end of the water pump is communicated with a water outlet through a pipeline, and the water outlet is formed in the base between the pipe body and the outer shell. The temperature sensor, the electric heating tube and the water pump are electrically connected with the temperature controller. The spiral groove formed among the base, the outer shell and the inner shell is used for enabling flowing water to be in full contact with the oxygen conveying pipe wound in the spiral groove, and efficient and uniform heating of oxygen is achieved. The inner shell can be quickly and conveniently taken and placed, and personnel operation is facilitated.

The utility model discloses an oxyhydrogen breathing machine capable of automatically cleaning a water tank, and relates to the technical field of breathing machines, the oxyhydrogen breathing machine comprises an oxyhydrogen breathing machine main body, the bottom of the oxyhydrogen breathing machine main body is fixedly provided with a mounting base, the bottom of the mounting base is provided with moving wheels, the top of the oxyhydrogen breathing machine main body is fixedly provided with a control screen, and the top of the control screen is provided with a water tank. Handles are movably installed on the two sides of the oxyhydrogen breathing machine body, and a water tank is arranged in the oxyhydrogen breathing machine body. Through mutual cooperation of the motor, the rotating disc, the transmission column, the connecting column, the outer gear, the inner gear, a cleaning roller, a long groove, an extrusion spring, a spring plate and a cleaning sleeve, the problems that a water tank of an existing oxyhydrogen breathing machine capable of automatically cleaning the water tank is inconvenient to clean, workers are tedious and time-consuming to clean the water tank, and the practicability of the device is affected are solved, the function of cleaning the inner wall is achieved, and the practicability of the device is improved. The inner wall of the water tank can be quickly and automatically cleaned without being disassembled and cleaned by workers, and the practicability of the device is improved.

The present invention relates to the technical field of fire-fighting and rescue equipment, and specifically relates to an intelligent compensation supply device for circulating gas of a positive pressure fire-fighting oxygen respirator. It includes a backplate and a gas cylinder installed on the backplate. The backplate is arc-shaped and looks like a C shape in a top view. A first pressure reducing valve is installed at the air outlet. A pressure gauge is installed on the first pressure reducing valve through a first hose. The first pressure reducing valve is connected to a breathing mask through an air supply pipe. Compared with the traditional open-circuit oxygen respirator, the gas exhaled by the rescuer is compressed into the C-shaped airbag under the action of a spherical compressor. The flow sensor in the breathing mask part monitors the breathing frequency of the rescuer. According to the actual activity intensity of the rescuer, under the action of the circulation mechanism, the gas in the C-shaped airbag is filtered for carbon dioxide and then supplemented into the air supply pipe, greatly extending the single rescue time of the rescuer, and the weight only increases by about 3 kg, which is much lower than that of the traditional closed-circuit oxygen respirator.

The present invention relates to the technical field of fire-fighting equipment, specifically a micro-miniature spherical power gas compression refrigeration device and its oxygen breathing apparatus system, including a back pack and a breathing mask. The back pack is provided with a wearing strap, and an oxygen cylinder is installed inside the back pack. A pressure reducing valve is installed on the oxygen cylinder, and a pressure gauge is connected to the pressure reducing valve through a first hose. When rescue personnel carry out high-intensity rescue operations, as carbon dioxide in the exhaled gas reacts with calcium hydroxide in the filter cartridge, the temperature inside the filter cartridge will rise rapidly. When the temperature inside the filter cartridge reaches above the boiling point of the refrigerant (the refrigerant is selected according to the actual situation of the enterprise, and the boiling point shall not exceed 35°C), the filter cartridge can be regarded as an evaporation chamber, evaporating the refrigerant into a gaseous state. Subsequently, under the action of the refrigeration mechanism, the heat inside the filter cartridge is continuously absorbed, so that during the use of this device, rescue personnel can always inhale gas at a suitable temperature.

The utility model provides a heating device for an oxygen breathing machine, and relates to the technical field of breathing machine heating, the heating device comprises two outer heat insulation plates, two inner heat conduction plates are arranged in the two outer heat insulation plates, and heating assemblies are arranged between the outer surfaces of the two inner heat conduction plates and the inner walls of the two outer heat insulation plates; limiting pieces are arranged between the ends of the two inner heat conduction plates and the ends of the two outer heat insulation plates. Through the arrangement of the two outer heat insulation plates and the two inner heat conduction plates, the two outer heat insulation plates and the two inner heat conduction plates can be opened, through the openable structural design, opening operation can be conducted when the gas conveying pipeline is disassembled and assembled, and then a gap does not need to be reserved between the heating device and the gas conveying pipeline; therefore, the gas conveying pipeline can be in contact with the heater, so that heat transfer is facilitated.

The invention discloses a double-layer lens anti-fog method and structure for a full face mask of a mining positive pressure oxygen respirator. The structure comprises a mask, the mask is composed of an outer-layer lens, an inner-layer lens, a flexible sealing frame, an upper hoop and a lower hoop, the outer-layer lens and the inner-layer lens are fixed in parallel through the sealing frame to form an interlayer, and the side wall of the interlayer is provided with an air inlet heat insulation pipeline and an air outlet; branch oxygen absorbs reaction heat of a CO2 absorbent through a spiral copper pipe of the cleaning tank, and enters an interlayer to heat an inner-layer lens after being heated, so that the temperature is higher than a dew point, and the discharged oxygen is converged into a closed cycle. According to the method, branch oxygen (accounting for 20%-30% of the total flow) is heated to 35 DEG C or above, airflow replacement (5-10 times per minute) is achieved in combination with a flow guide plate, the positive pressure of an interlayer is maintained, and cold condensation fog is prevented. The self heat source of equipment is utilized, external energy is not needed, the anti-fog effect is lasting, the total light transmittance of the mask is larger than or equal to 86%, the mask adapts to the mine low-temperature and high-humidity environment, the rescue efficiency is improved, and the intrinsic safety requirement is met.

This invention discloses a diving bell gas system and its gas supply method. The gas system includes a diving bell body, a diving bell umbilical cord, a diver's umbilical cord, and a bell-mounted gas supply unit. The diving bell umbilical cord includes a supply gas pipeline and a breathing gas pipeline, which respectively provide high-pressure ambient gas to the diving bell body and breathing gas to the divers. The bell-mounted gas supply unit includes a helium-oxygen cylinder, a liquid nitrogen Dewar flask, and a liquid oxygen Dewar flask. The helium-oxygen cylinder contains a high-pressure helium-oxygen mixture. The outlet pipelines of the liquid nitrogen Dewar flask and the liquid oxygen Dewar flask are connected in parallel to the breathing gas supply pipeline. The nitrogen and / or oxygen supplied are adjusted according to the diving bell's operating depth. The breathing gas supply pipeline and the breathing gas supply pipeline are connected in parallel to the inlet of a manifold. The inlet of the manifold is also connected to the breathing gas pipeline, and the outlet of the manifold is connected to multiple diver's umbilical cords. This invention can flexibly adjust the helium-nitrogen-oxygen ratio according to the diving bell's current operating depth, effectively adapting to the breathing needs of divers at different water depths.

The pressure release valve comprises a pressure release valve mechanism and the quick air supply mechanism which are connected with each other, the pressure release valve mechanism comprises a pressure release base assembly, and a gas reversing circulation assembly capable of assisting in switching air supply and pressure release channels is installed in the pressure release base assembly. The rapid air supplementing mechanism comprises an air bottle base assembly, an air supplementing air bottle and a rapid opening assembly are installed on the air bottle base assembly, one end of a pressure relief base assembly is connected with an air bag sealing cover, the other end of the pressure relief base assembly is connected with the air bottle base assembly through a dismounting and inserting fixing assembly, and the rapid opening assembly is used for opening the air supplementing air bottle. The chemical oxygen respirator is reasonable in structure, easy and convenient to assemble, high in stability, easy to operate and capable of rapidly supplementing air for the air bag for human body breathing, achieves suffocation feeling of a user due to initial wearing of the chemical oxygen respirator, achieves air exchange, prevents external complex air from entering a closed air circulation channel, improves oxygen concentration of the chemical oxygen respirator in the initial reaction stage, and improves the safety of the user. And a safety guarantee is provided for a user.

The utility model discloses an oxyhydrogen breathing machine convenient to move, which comprises an oxyhydrogen breathing machine body, a lifting control device body is fixedly arranged at the bottom of the oxyhydrogen breathing machine body, a support base is arranged on one side, far away from the oxyhydrogen breathing machine body, of the lifting control device body, and a telescopic rod is started to push universal wheels to the ground. When the oxyhydrogen breathing machine body needs to be used, the oxyhydrogen breathing machine body needs to be stably placed, a rotating ring is rotated, a clamping plate fixedly installed at the bottom of the rotating ring is not clamped with a toothed plate fixedly installed on the side wall of an adjusting base any more, the adjusting base is pushed towards the ground, and the oxyhydrogen breathing machine body is moved. And a second magnetic block fixedly installed at the top end of the adjusting seat does not magnetically attract a first magnetic block fixedly installed on the outer wall of the clamping plate any more, a limiting groove formed in the outer wall of the adjusting seat slides on the outer wall of a limiting block fixedly installed on the outer wall of the supporting base, and a rubber mat fixedly installed at the bottom of the adjusting seat makes contact with the ground.

The present disclosure provides an oxygen breathing apparatus. The present disclosure provides an oxygen breathing apparatus including a hose including one end portion, another end portion opposite the one end portion, and a connector provided between the one end portion and the other end portion and configured to allow a mouthpiece to be mounted thereon; a fan connected to the one end portion of the hose; an exhalation bag connected at one side to the fan, and fluidly connected at another side to the other end portion of the hose; an oxygen supply device configured to store oxygen, and connected to the exhalation bag; and a controller configured to control driving of the fan so that the fan forms a unidirectional air flow within the hose.

The utility model relates to the technical field of oxygen inhalation masks, and discloses a constant-temperature oxygen inhalation mask which comprises a mask body, and a constant-temperature mechanism is arranged on the front face of the mask body. The constant-temperature mechanism comprises a hose, the end, close to the mask body, of the hose penetrates through the mask body and extends into the mask body, a temperature detector and a controller are fixedly installed on the front face of the mask body, the detection end of the temperature detector penetrates through the mask body and extends into the mask body, and the bottom end of the hose fixedly communicates with a connecting box. Three electric heating resistance wires are fixedly installed on the inner wall of the connecting box, a water storage tank and a water suction pump are fixedly installed on the left side face of the connecting box, the power input end of the water suction pump penetrates through the water storage tank and extends into the water storage tank, the bottom face of the connecting box fixedly communicates with an air inlet pipe, and the power output end of the water suction pump fixedly communicates with a circulating pipe. According to the constant-temperature oxygen inhalation mask, by arranging the mask body and the constant-temperature mechanism, the purpose of conveniently adjusting the temperature of oxygen inhaled by a patient is achieved.

1. Name of the product in this design: Pillow (Light Oxygen Breathing Series · Soft Domain Constant Temperature Pillow). 2. Purpose of this design: For use as a pillow or support during sleep. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key features: a top view.

The invention relates to the field of ventilation treatment equipment, and discloses an oxygen bottle and an oxygen respirator. The oxygen bottle (10) comprises a bottle body (11), the bottle body (11) is provided with an oxygen storage cavity and a dilatation opening (112) communicated with the oxygen storage cavity, and the dilatation opening (112) has a closed state and an open state which is communicated with another oxygen bottle (10) to achieve dilatation. The oxygen bottle can supply oxygen independently and can be communicated with other oxygen bottles through the expansion port to realize expansion, so that long-time oxygen supply is realized or the requirement of multiple persons for oxygen inhalation at the same time is met. The problems that the capacity is limited, and long-time oxygen uptake or oxygen use of multiple people cannot be met can be solved, the size of the single body is small, use is convenient, and different capacity requirements can be flexibly met.

The invention relates to the technical field of positive pressure oxygen respirators, in particular to a self-adaptive oxygen supply positive pressure oxygen respirator and an output adjusting method thereof.The self-adaptive oxygen supply positive pressure oxygen respirator comprises an oxygen bottle, a pressure reducer, an air bag, an inflation mechanism, a gas sensor, a body state monitoring unit, a main controller, an electric control adjusting valve and an electric control exhaust valve; a gas sensor monitors a gas detection value in a breathing loop, a body state monitoring unit monitors vital sign parameters of a person, and an inflation mechanism firstly enables an air bag and a pipeline to be filled with air when the oxygen respirator is started initially; the main controller is connected with the electric control regulating valve and receives detection values of the gas sensor and the body monitoring unit to control the electric control regulating valve; feedback control is formed by additionally arranging the inflation mechanism, electronic monitoring and the electric control valve, the proportion of oxygen and nitrogen in a loop is made to be close to that of air integrally, the normal physiological needs of the human body are met, the adaptability of oxygen expiration is improved, the oxygen concentration is adjusted in a self-adaptive mode according to the needs of the human body, and the oxygen expiration can be used more safely and healthily.

The invention discloses a dual-mode oxygen supply oxygen respirator which comprises an oxygen bottle set, a pressure reducer, a flow adjusting device, a parameter collector, an alarm, an oxygen mask, a breathing connecting set, an air bag set, an oxygen respirator protection structure body, a cleaning tank set, a cooler set, an exhaust valve set, a self-compensating valve set and a pull rod set. The oxygen bottle set reduces high-pressure oxygen to medium-pressure oxygen through the pressure reducer, the flow adjusting device achieves switching between a static sitting mode and a conventional working mode, and different oxygen consumption requirements are met. The air bag set maintains the positive pressure of 10-245Pa through the positive pressure mechanism, and the automatic supply mechanism dynamically responds to the oxygen consumption pressure change. The breathing connection set and the cleaning tank set ensure inspiration and expiration circulation and CO2 absorption, and the cooler set improves the breathing comfort degree. Through dual-mode oxygen supply, medium-pressure transmission, intelligent monitoring and chest integrated design, oxygen supply flexibility, safety, comfort and maintenance convenience are improved, and the intelligent oxygen supply system is suitable for fire fighting, rescue and other scenes.

The utility model discloses an oxygen inhalation mask which comprises a mask body, four clamping rings are symmetrically and fixedly installed on the outer portion of the mask body, a breathing notch is formed in the front portion of the mask body, a fixing structure is arranged on the front portion of the breathing notch, and the fixing structure comprises two stand columns and a supporting plate. The two stand columns are symmetrically and fixedly installed on the front portion of the mask body, the supporting plate is fixedly installed at the bottoms of the stand columns, ejection springs are fixedly installed at the positions, close to the two sides of the rear portion, of the top of the supporting plate, grooves are formed in the close sides of the two stand columns, and the ejection springs are matched with the grooves in an adaptive mode. A cavity is formed in the position, close to the top, in the stand column. According to the oxygen inhalation mask, the whole oxygen inhalation mask does not need to be taken down when a patient performs expectoration, oral cavity cleaning or other physiological operations needing to temporarily take off the mask, and the comfort degree of the patient when the patient wears the oxygen inhalation mask for a long time can be improved by arranging the skin-friendly structure.

The application discloses a medical hydrogen-oxygen breathing machine, which comprises a machine body and an electrolysis box, a water tank, a condenser and a humidification bottle are arranged in the machine body, the water tank is arranged in communication with the electrolysis box, the electrolysis box is arranged in communication with the condenser, the humidification bottle is arranged in communication with the condenser, water in the water tank enters the electrolysis box, and the water is electrolyzed to generate gas in the electrolysis box, the electrolysis-generated gas is cooled by the condenser and then humidified by the humidification bottle, and a column for containing water is further arranged between the water tank and the electrolysis box, water in the water tank enters the electrolysis box through the column, a filter is further arranged between the column and the humidification bottle, the electrolysis-generated gas enters the filter after passing through the column, and finally enters the humidification bottle. The application has the effect of improving the oxygen concentration generated by electrolysis.

The utility model relates to a forest fire shelter of closed-circuit oxygen breathing type, and relates to a forest fire shelter. The utility model discloses a kind of forest fire shelter, to solve the problem that existing fire shelter cannot block outside flue gas and smoke dust from entering its inside when ground is uneven. The utility model is simple to operate, when using in the case of uneven ground, avoid firemen inhale high-temperature and harmful flue gas and smoke dust, provide protection for the life safety of firemen: when in critical fire environment, firemen deploy fire shelter, lie into cover with head towards storage pouch in prone position, then take out closed-circuit breathing unit in storage pouch. Gas mask is worn on face, the size of gas supply is adjusted in real time by rotating valve on gas supply tank, exhaled gas enters carbon dioxide adsorption tank through exhalation valve, adsorbent in its interior absorbs carbon dioxide, and remaining exhaled gas continues to participate in respiratory cycle. The utility model belongs to the technical field of forest fire fighting.

The utility model discloses an oxygen uptake system suitable for a closed pressurizing building. The oxygen uptake system comprises pressurizing equipment arranged outside the pressurizing building, and an air supply outlet, an exhaust outlet, an oxygenation device and circulating air equipment which are arranged inside the pressurizing building, the supercharging equipment is connected to the air supply outlet through an air supply pipeline, and the exhaust outlet communicates with the outside through an exhaust pipeline; the oxygen increasing device comprises an oxygen inhalation port for people to inhale oxygen indoors, oxygen generating equipment for treating indoor air and generating oxygen indoors, and an oxygen concentration detecting piece for detecting the indoor oxygen concentration, and the oxygen generating equipment is connected to the oxygen inhalation port through an oxygen conveying pipeline; the circulating air equipment is used for providing circulating air for the indoor space so that indoor oxygen can be evenly distributed. According to the system, the fire risk is greatly reduced, the oxygen generation efficiency can be ensured, the indoor oxygen concentration distribution can be more uniform, and the indoor oxygen concentration can be conveniently maintained.

1. Name of the Design Product: Detachable Oxygen Breathing Valve for Mountaineering. 2. Use of the Design Product: For detachable oxygen breathing valves. 3. Design Key Points of the Design Product: Lies in the shape. 4. Picture or Photograph that Best Illustrates the Design Key Points: Perspective view.