Vehicle-carried first aid kit

A vehicle-carried first aid kit, comprising:

• a portable respirator, oxygen inhalation goggles, a first aid bracelet (29), and a military shovel (28),
• wherein the portable respirator comprises a main valve body (1) and a gas cylinder (2);
• a pressure relief diaphragm (6) is mounted inside the main valve body (1);
• an outer side of the pressure relief diaphragm (6) is in communication with an atmospheric environment and an inner side of the pressure relief diaphragm (6) forms a low-pressure compartment (7) with an inner wall of the main valve body (1);
• the low-pressure compartment (7) is in communication with a gas outlet (2-1) of a gas outlet end of the gas cylinder (2) through an inlet gas channel (3);
• a pressure relief valve (8) is disposed inside the main valve body (1);
• a pressure relief channel (8-1) in communication with the inlet gas channel (3) and the low-pressure compartment (7) is disposed in a valve body (8-2) of the pressure relief valve (8);
• a pressure relief opening (8-3) is disposed on the valve body (8-2) of the pressure relief valve (8);
• the pressure relief diaphragm (6) is linked with the pressure relief valve (8) through a pressing mechanism(9);
• the main valve body (1) is provided with an inflation opening (12) in communication with the inlet gas channel (3) and the main valve body (1) is provided with a mouthpiece interface (13) in communication with the low-pressure compartment (7);
• an exhaust opening (11) in communication with the low-pressure compartment (7) is disposed at the bottom of the main valve body (1), and the exhaust opening (11) is provided with a one-way exhaust diaphragm;
• wherein the oxygen inhalation goggles comprise a goggle frame (15) fitted with lenses (16) and a flexible skirt edge (17) disposed around the goggle frame (15) to form a respiratory chamber (18);
• an inlet gas tube (19) is inserted into the flexible skirt edge (17);
• a first end of the inlet gas tube (19) communicates with the respiratory chamber (18) and extends to a nose part, and the first end of the inlet gas tube (19) is provided with nose plugs (20) for ease of inhalation;
• a second end of the inlet gas tube (19) is connected with a portable oxygen cylinder (21);
• the goggle frame (15) is provided with a binding strap (22) fixed to a head part, and the binding strap (22) is provided with an elastic strap (23) for detachably mounting the portable oxygen cylinder (21) to the binding strap (22);
• and
• wherein a gas inlet end of the inlet gas channel (3) is connected with the gas outlet end of the gas cylinder (2) through a connection piece (4);
• the connection piece (4) includes a first connection portion (4-1) and a second connection portion (4-2);
• protruding blocks (4-3) matching a flare (2-2) of the gas outlet end of the gas cylinder (2) is disposed on an inner wall of the first connection portion (4-1);
• an external hooping piece (4-4) is sleeved on an outer wall of the first connection portion (4-1);
• the external hooping piece (4-4) tightly embraces the first connection portion (4-1) onto the gas outlet end of the gas cylinder (2);
• the second connection portion (4-2) is slidably connected with an input end of the inlet gas channel (3);
• a first limiting groove (3-1) in communication with the inlet gas channel (3) is provided at the center of the input end of the inlet gas channel (3);
• the first limiting groove (3-1) has an inner diameter greater than an inner diameter of the inlet gas channel (3), thereby forming an annular shoulder surface at a transition from the first limiting groove (3-1) to the inlet gas channel (3);
• the gas outlet (2-1) of the gas outlet end of the gas cylinder (2) extends into the first limiting groove (3-1);
• a gap is reserved between the annular shoulder surface and an end surface of the gas outlet (2-1);
• when the second connection portion (4-2) slides toward the inlet gas channel (3), the annular shoulder surface is abutted and pressed against the end surface of the gas outlet (2-1), so as to open the gas outlet (2-1);
• when the second connection portion (4-2) slides away from the inlet gas channel (3), the annular shoulder surface goes away from the end surface of the gas outlet (2-1) of the gas cylinder (2), so as to close the gas outlet (2-1).