48results about How to "Avoid shortness of breath" patented technology

The invention discloses a novel haze resisting mask with a filling air bag. The mask comprises a mask body, the filling air bag and fastening belts; each of the left and right of the mask body is provided with a static-force adjustable dual-purpose fastening belt; the filling air bag is arranged on the part, opposite to the nose bridge, of the interior of the mask body, a respiratory valve, a replaceable filter core or a standardized member is installed on the mask body, a gray level detector is installed on the filter core, the standardized member is screwed on the side, close to the face, ofthe filter core or fixedly clamped to the side, close to the face, of the filter core, the filling air bag is provided with an inflation port and an air discharging port which can be opened and closed, and the filling air bag can be connected with the air bag supporting frame in the mask. The mask has the advantages that the design is reasonable, air tightness and comfort can be taken into consideration by the filling air bag, the mask is light and can be repeatedly used, and the fastening belts are comfortable and can provide more wearing manners. The novel haze resisting mask is provided with the gray level detector so that a user can be reminded to replace the filter core, and the mask surface is well supported by the air bag supporting frame on the inner side of the mask surface to prevent the fitting of the mask surface and the face.

The invention discloses a cyclone air-breathing aircraft engine and a driving method thereof, and aims to improve the problems that a traditional aircraft engine is low in thrust-weight ratio, the weight of a high-thrust engine is heavy and the like. The aircraft engine comprises a turbojet engine, an air inlet pipe is connected with an air discharging port of the turbojet engine, a cylinder is connected at the other end of the air inlet pipe, a cylinder end port A is formed in one end surface of the cylinder, a cylinder end port B is formed in the other end surface of the cylinder, the diameter of the cylinder end port B is larger than that the cylinder end port A, an air inlet approaches to the cylinder end port A, the air inlet pipe is positioned on the tangent line of the cross sectionof the cylinder of the air inlet pipe, helical blades are fixedly connected on the inner wall of the cylinder, spiral grooves are formed among the helical blades and the inner walls of the cylinder,a plurality of oil spraying holes are formed in the inner wall of the cylinder of the spiral grooves, and an igniter is arranged in the cylinder.

A wearable non-electric air-supply mask device and its use method, which include an air-supply system, a power system and a respiratory system; the chest drape is worn on the user's shoulders and front chest; The bellows device and the linkage device on the drape seat, the linkage device is connected with the power input end of the bellows device, the bellows device includes the first bellows and the second bellows arranged side by side; the power system includes the swing rod device and the flexible shaft worn on the lower limbs, The shaft is connected to the linkage device, and the swing rod device transmits the pulling force generated by the limb movement to the linkage device through the flexible shaft, driving the bellows device to supply air; the respiratory system includes an air supply pipe and a mask, and one end of the air supply pipe is connected to the air outlet of the bellows device. One end is connected with the mask worn on the face for air supply. The device integrates the bellows device on the chest, and the swing rod device is integrated on the legs, which transmits pulling force by swinging while walking, and alternately pulls the bellows to supply air and purify air through the principle of lever movement.