Overflow cut-off valve
A shut-off valve, over-current technology, applied in the direction of lift valve, valve details, safety valve, etc., can solve the problems of gas overflow poisoning or explosion, life safety threat, family property loss, etc., to ensure gas safety and small size , the effect of simple structure
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Embodiment 1
[0027] Such as figure 2 , image 3 and Figure 5 The overcurrent cut-off valve shown includes a valve body and a cut-off assembly, the cut-off assembly is installed in the valve body, and the valve body includes an air inlet flange 4 through which gas enters, and a retainer installed with an interference fit with the air inlet flange 4 Frame 2, an air outlet support frame 1 installed with an interference fit with the cage 2, the cut-off assembly includes a release spring 5, a steel ball 7, a valve core 8 and a return spring 10 that resets the valve core 8 after cutting off the gas, as Figure 6 As shown, the valve core 8 includes an upper guiding plug 81, a valve disc 83 and a lower guiding plug 82 connected in sequence. The valve core 8 has an integrated structure, and the structure is firmer and will not break. The valve disc The shape of 83 is hemispherical, and the opening faces the direction of the air inlet flange 4. The return spring 10 is sleeved on the guide lower ...
Embodiment 2
[0032] The working principle of this embodiment is the same as that of Embodiment 1, the difference is that: the valve disc 83 of the valve core 8 is in the shape of a sheet, the retainer 2 is threadedly connected with the air inlet flange 4, and the air outlet support frame 1 is connected with the retainer. Frame 2 threaded connection.
Embodiment 3
[0034] The working principle of this embodiment is the same as that of Embodiment 1, the difference is that: the retainer 2 and the air outlet support frame 1 adopt an integrated structure, and are connected to the air inlet flange 4 through threaded connection or interference fit.
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