An intrinsically safe high-pressure fire hydrant
A fire hydrant, intrinsically safe technology, applied in the direction of lift valve, fire rescue, engine components, etc., can solve the problems of fire safety hidden danger, fire hydrant maintenance difficulty, valve stem pop-up or damage, etc., to ensure the safety of life and property, The effect of ensuring water supply demand and improving pressure resistance
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[0026] Below in conjunction with embodiment and accompanying drawing, the present invention will be further described:
[0027] Such as figure 1 As shown, an intrinsically safe high-pressure fire hydrant includes a valve body 1, a valve stem 2 and a valve body base 3 arranged at the bottom of the valve body 1. A water inlet is opened at the bottom of the valve body 1, and a water inlet is provided on the side wall of the valve body 1. There is a water outlet on the top, the water inlet passes through the valve body base 3 and communicates with the inside of the valve body 1, the water inlet is facing the valve stem 2 and moves back and forth along the water inlet direction;
[0028] from figure 1 with image 3 It can also be seen that the inner wall of the valve body 1 is provided with a "concave" shape limiting groove 4, the outer wall of the valve stem 2 is provided with a spiral groove 5, and a limiting device 6 is arranged between the valve body 1 and the valve stem 2. T...
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