Ventilator
A ventilator and airbag technology, applied in the field of respiratory system, can solve the problems of high cost of oxygen supplement, inconvenient use, and inability to supply at any time, and achieve the effect of convenient use and simple operation
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Embodiment 1
[0036] like figure 1 As shown, the ventilator includes a first air bag 1 and a second air bag 2 whose internal space can be expanded and contracted, a valve group, a molecular sieve tank 4, an oxygen storage tank 5, an air-oxygen mixer 6, and a mask-integrated air leak valve 7;
[0037]The first airbag 1 has an air inlet and an air outlet, the air inlet is provided with a first one-way valve 11 , and the air outlet is provided with a third one-way valve 12 , and the first airbag 1 is mixed with air and oxygen through the third one-way valve 12 The air-oxygen mixer 6 is connected to the air-oxygen mixer 6, which mixes the oxygen from the oxygen storage tank 5 and the air from the first air bag 1. The air-oxygen mixer 6 is connected to the humidifier 8 through the second one-way throttle valve 61. The humidifier 8 8 is connected to the integrated air leakage valve 7 of the mask, and the air-oxygen mixer 6 is provided with an overflow valve 62 to ensure the safety of exhalation. ...
Embodiment 2
[0055] like Figure 5 As shown, the difference between this embodiment and the first embodiment is that the number of molecular sieve tanks 4 is different:
[0056] In this embodiment, there are two molecular sieve tanks 4, correspondingly, there are two two-position two-way linkage one-way pressure valves 3, and two throttle valves 41; and one one-position two-way switching valve 42 is also included. After the second air bag 2 is connected to the one-position two-way switching valve 42, it is respectively connected to two two-position two-way linkage one-way pressure valves 3, and the two-way linkage one-way pressure valve 3 is both connected to a molecular sieve tank 4, and the top of the molecular sieve tank 4 is connected to a joint The throttle valve 41 and the two throttle valves 41 are both connected to the oxygen storage tank 5 .
[0057] like Figure 6(a) , 6(b) As shown, the one-position two-way switching valve 42 includes a touch rod 421, a return spring 422, a o...
Embodiment 3
[0067] like Figure 8 , Figure 9 As shown, the difference between this embodiment and the first embodiment is that the driving mode of the pressing plate 9 is different.
[0068] In this embodiment, the outside of the pressing plate 9 has a second rack 91 , and further includes a fixed drive gear 92 , and the second rack 91 meshes with the drive gear 92 .
[0069] like Figure 8 As shown, the driving gear 92 rotates clockwise, which drives the pressing plate 9 to move to the right, compresses the second air bag 2, and expands the first air bag 1; Figure 9 As shown, the driving gear 92 rotates counterclockwise, which drives the pressing plate 9 to move leftward, compresses the first air bag 1 and expands the second air bag 2 .
[0070] In addition to the above-mentioned way of realizing the left and right movement of the pressing plate 9 by means of gear meshing, it can also be realized by mechanical structures such as chains, belts, and reciprocating screws.
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