18 results about "Inhalation chamber" patented technology

The utility model discloses a portable wearable breast pump, which belongs to the technical field of mother and baby products, and comprises a cup body, a cup cover and a main machine, the main machine is clamped at one end of the cup body, the cup cover is hermetically mounted at the bottom of the cup body, a milk storage chamber is formed between the outer side of the cup cover and the inner side wall of the cup body, and the cup cover is arranged in the milk storage chamber. A milk sucking bin is connected to the top of the cup cover in a penetrating mode, an air cylinder structure is arranged on the periphery of the top of the milk sucking bin, the whole equipment can be divided into a main machine, a cup body and the cup cover, and therefore the problem that complex assembling and alignment are difficult is solved, internal water and electricity separation is achieved, and use safety is guaranteed; in addition, the air cylinder structure with the elastic tibia is used, the problem that noise generated by rebounding resonance of the air cylinder is large is solved, the stability of function output is greatly improved, and the using body feeling is smoother.

The utility model relates to water body oxygenation technical field especially, more particularly to a fan circulating water oxygenation equipment. Its technical scheme includes: pedestal, suction chamber and suction pipe, be equipped with the nozzle on the pedestal, be equipped with the suction chamber on the nozzle, the other end of suction chamber is equipped with the mixing chamber, the other end of mixing chamber is equipped with the diffusion chamber, the mixing chamber, nozzle, suction chamber and diffusion chamber constitute the jet structure, jet structure is used for gas water mixture, increases water body oxygen content, the bottom end suction inlet of suction chamber is equipped with suction pipe, the bottom end of suction pipe is equipped with the impurity removal structure, and the impurity removal structure is used for removing the impurity that suction pipe orifice filters. The utility model discloses through the jet structure and carries out the water body oxygenation circulation of lasting, has improved water body dissolved oxygen content, the impurity that automatic cleaning filter plate surface adheres, ensures the filtering effect of filter plate sustained and stable, avoids the equipment performance decline caused by the impurity blockage or accumulation.

The present invention discloses a self-inhalation sealed heat-insulating cover, comprising an outer cover and an inner cover which are press-fitted, a mounting hole being provided in the middle of the inner cover, an inner plug being fixedly mounted in the mounting hole, a concave cavity being provided in the middle of the inner plug, a sealed cavity being formed between the concave cavity and the outer cover, an automatic air-inhalation sealing mechanism being installed in the concave cavity, the sealing mechanism comprising an air-inhalation chamber surrounded by a shell and arranged in the concave cavity, the air-inhalation chamber being separated from the sealed chamber as an independent chamber, an air inlet of the air-inhalation chamber being located on the side wall of the inner plug at a corresponding position thereof, an air-permeable hole and a fixing hole for fixing a sealing gasket being provided on the bottom end surface of the air-permeable chamber, a disc-shaped sealing gasket for sealing the air-permeable hole being fixedly installed in the fixing hole. The present invention changes the structure of the traditional cover body, and through the structure of the sealed cavity in the inner plug, the heat exchange between the cup body and the outside air can be reduced, thereby prolonging the heat-insulating time, and at the same time, when the heat is dissipated to the point where the air pressure in the cup is lower than the outside pressure, it is convenient to open.

The invention of the present application relates to the fields of ejectors and hydrogen fuel cells, and particularly to a combined nozzle ejector for a hydrogen fuel cell, including a main body, in which an inhalation chamber, an isobaric mixing chamber, an equal-area mixing chamber and a diffusion chamber are sequentially arranged along the axis; the inhalation chamber is communicated with a first flow pipe. The present application can fully absorb the hydrogen discharged from the anode of the fuel cell according to the different powers of the fuel cell, ensure the output voltage of the battery, and stabilize the electrochemical reaction rate.

The present invention proposes a respiratory muscle strength tester based on rehabilitation assessment, which relates to the field of medical device technology, including: an outer shell, an exhalation chamber and an inhalation chamber are arranged inside the outer shell, and a dual-chamber test structure composed of an exhalation chamber and an inhalation chamber is adopted. During the test, separate tests are performed to block the spread of pollutants, and at the same time, targeted disinfection is facilitated to reduce the risk of cross infection. During the exhalation test, the sealing effect of the test chamber is ensured by using a sealing plate A and a magnetic strip A through a switching component. At the same time, when switching the chamber, the exhalation chamber is targeted and strengthened with the cooperation of a gear and a rack plate. After the exhalation and inhalation tests are completed, all chambers are fully disinfected and dried and exhausted through a disinfection component and a drying component. Only the mouthpiece needs to be replaced when it is used again. The cost is low and the replacement speed is fast. The present invention achieves the purpose of preventing cross infection and facilitating disinfection.

The utility model relates to a water surface floating rotary plug flow type anti-freezing oxygenation device. The rotary plug-flow type anti-freezing oxygenation device floating on the water surface comprises a plastic floating body, a plug-flow aerator assembly, a rotary driving assembly and a circular supporting frame assembly, the plastic floating body is arranged on the circular supporting frame assembly in a sleeving mode, and the driving end of the rotary driving assembly penetrates through the plastic floating body to be connected with the plug-flow aerator assembly; the plug flow aerator assembly comprises a jet device, two ends of the jet device are opened, a suction chamber of the jet device is connected with an air pipe, and the air pipe is communicated with external air; according to the rotary plug-flow type anti-freezing oxygenation device floating on the water surface, by arranging the rotary driving assembly, the jet device can rotate and stir steam-water mixed liquid while aerating, the aeration effect is improved, meanwhile, by arranging the angle of the jet device in an adjustable mode, water bodies of different depths can be stirred, the aeration efficiency is improved, and the aeration effect is improved. Therefore, the anti-freezing effect is improved.

The invention relates to the field of ejectors and hydrogen fuel cells, in particular to a combined nozzle ejector for a hydrogen fuel cell, which comprises a body, and a suction chamber, an isobaric mixing cavity, an equal-area mixing cavity and a diffusion chamber are sequentially arranged in the body along the axis; and the suction chamber is communicated with the first flow pipe. The hydrogen discharged from the fuel cell anode can be fully absorbed according to different power of the fuel cell, the output voltage of the cell is ensured, and the electrochemical reaction rate is stabilized.

A device for training and monitoring the respiratory system comprises a main body, which defines an inhalation chamber and an exhalation chamber communicating with the external environment by means of respective external seats and interconnected by a central chamber. A mouthpiece can be further placed in fluid communication alternatively with the inhalation chamber or with the exhalation chamber by means of respective one-way valves. A measurement sensor is coupled to the main body so as to measure a value representative of the breathing process, independently monitoring the contribution of inhalation and exhalation. Such a representative value is acquired by a control unit. Lastly, an adjustable load is interposed between the mouthpiece and the central chamber.

Aspirating smoke detector (ASD), which at least has, - a fire detector unit (DET) for the metrological determination of a signal level (DL) of a fire characteristic parameter, - an intake unit (L), - a power control unit (DR) for adjusting the intake power (P) of the intake unit (L), - an intake pipe (R) connected to the intake unit (L) and equipped with intake openings (OF) for drawing in room air containing smoke and / or combustion gas to be detected, - an airflow meter (SEN), in particular a flow meter, for detecting an airflow (V̇, ṁ) of the intake room air, and - an electronic control unit (MC) connected to the fire detector unit (DET), the airflow meter (SEN) and the power control unit (DR), configured to adjust the intake power (P) of the intake unit (L) to a nominal airflow value (NW) for normal operation by means of the power control unit (DR), to increase the intake power (P) from a detected minimum signal level value (MIN) by means of the power control unit (DR) to shorten the transport time (T) and to issue a fire alarm (AL) in the event of a detected fire, characterized in that - that the control unit (MC) is configured to issue an interruption message (U) intended for normal operation if the detected airflow (V̇, ṁ) exceeds a predetermined upper limit (V̇ +, ṁ +) for a minimum period of time (ZR), and - that the control unit (MC) is configured to increase the intake power (P) from the minimum signal level value (MIN) only to the extent that the airflow (V̇, ṁ) does not exceed the upper limit (V̇ +, ṁ +).

The utility model discloses a coal mine ventilation device relates to mine ventilation technical field, including the front and rear arrangement's air intake head and air outlet head, and the air intake head and air outlet head are connected with the air distribution pipe, and the air intake head is connected coal mine downhole pressure system through the pipeline, provides high pressure air, and the air outlet head is connected return air lane through the pipeline, and exhausts mixed gas, and the air distribution pipe includes suction chamber, throat and diffusion chamber, and suction chamber, throat and diffusion chamber constitute venturi effect, and the entrance position of suction chamber is provided with the nozzle, and the nozzle is opposite the throat jet, and the diffusion chamber includes gradually expanding section and export section who sets gradually from front to back, and the cross section area of gradually expanding section is increasing along the flow direction, and extends to export section, and the top of suction chamber is provided with the air inlet, and the air inlet communicates outside and suction chamber. Through high pressure jet flow produces the negative pressure, and the initiative suction blind lane dirty air, need not mechanical rotating part, fundamentally eliminates the explosion risk, improves ventilation efficiency and reduces energy consumption simultaneously.

A suction collection system may include: a heat treatment chamber; a suction chamber disposed downstream of an exit of the heat treatment chamber; a suction nozzle disposed in the suction chamber and configured to suck and collect an object; a first partition wall disposed between the heat treatment chamber and the suction chamber and configured to perform switching between a connected state in which the heat treatment chamber and the suction chamber are connected to each other and a non-connected state in which the heat treatment chamber and the suction chamber are not connected to each other; a gas exchange chamber disposed downstream of the suction chamber;and a second partition wall disposed between the suction chamber and the gas exchange chamber and configured to perform switching between a connected state in which the suction chamber and the gas exchange chamber are connected and a non-connected state in which the suction chamber and the gas exchange chamber are not connected.;

The invention provides a respiratory muscle strength tester based on rehabilitation evaluation, and relates to the technical field of medical instruments, the respiratory muscle strength tester comprises an outer shell, the outer shell is internally provided with an expiration cavity and an inspiration cavity, a double-cavity testing structure formed by combining the expiration cavity and the inspiration cavity is adopted, and during testing, separate testing is carried out, so that pollutant diffusion is blocked; meanwhile, targeted disinfection is facilitated, the risk of cross infection is reduced, the sealing effect of a test cavity is guaranteed through a sealing plate A and a magnetic strip A when an expiration test is conducted through a switching part, targeted enhanced disinfection work is conducted on the expiration cavity under the cooperation effect of a gear and a rack plate when the cavity is switched, and after the expiration test and the inspiration test are both finished, the sealing effect of the test cavity is guaranteed. All the chambers are comprehensively disinfected, dried and exhausted through the disinfection component and the drying component, only the mouthpiece needs to be replaced when the mouthpiece is used again, the manufacturing cost is low, the replacement speed is high, and the purposes of preventing cross infection and facilitating disinfection are achieved.

The present invention discloses an air purification device, comprising a housing with an air duct, wherein the air inlet and the air outlet of the air duct are respectively arranged on the bottom side wall and the top surface of the housing, a fan assembly is arranged in the housing, and a spray assembly is also arranged upstream of the fan assembly, and the spray assembly sprays disinfectant into the air duct to inactivate viruses in the air entering the air duct. The air purification device of the present invention continuously inhales indoor air, and when the inhaled air passes through the air duct, the disinfectant is continuously sprayed into the air duct, and the viruses and bacteria in the air are inactivated by the disinfectant, and the purified air is continuously discharged from the air outlet.

A stand-alone chamber or multi-chamber inhalation system has at least two alternative vaporized test liquid supply systems for passive or self-administered delivery of vaporized test fluid and air to one or more test chambers, which can be passive or restraint chambers, based on operator selection of delivery on and off times in a passive mode or actuation of an actuator in the chamber by a test animal in a self-administered mode. In one case, a multiple inhalation chamber system has two or more separate test fluid delivery systems and provides options for selective passive uniform drug delivery to multiple chambers or selective delivery of two or more different drugs to different groups of chambers from different delivery systems so that two different drugs or different concentrations of delivered drugs can be tested simultaneously.

The invention relates to a battlefield environment simulation fuming device which comprises a fuming box, a drawer, a flame gun head, a gas tank and an ignition device, the drawer is located in the fuming box and slidably connected with the fuming box, the flame gun head and the ignition device are located in the drawer, and the gas tank is communicated with the flame gun head through a pipeline. First through holes are formed in the left side and the right side of the smoke generating box correspondingly. The injection pump comprises a smoke inlet, a suction chamber, a mixing chamber and a diffusion chamber, the side, close to the smoke forming box, of the suction chamber and the smoke inlet are integrally formed, the smoke inlet is communicated with the smoke forming box, the upper portion of the suction chamber and the mixing chamber are integrally formed, and the upper portion of the mixing chamber and the diffusion chamber are integrally formed. According to the invention, the injection pump is used to increase the speed and height of flue gas injection, and the amount of compressed gas introduced in unit time can be changed through an electromagnetic valve or an air compressor working in a frequency conversion manner, so that the speed of airflow is controlled, and the combustion speed of a tobacco cake is further controlled.