Anti-blocking drainage device

Abstract

The utility model discloses an anti-blocking drainage device which comprises a shell, a water inlet pipe penetrates through the top end of the shell, an impurity outlet is formed in the top of one side wall of the shell, a movable plate is arranged at the bottom of the inner side of the impurity outlet, a screen is clamped at the top end of the movable plate, and intercepting net plates are arranged on the two sides of the movable plate. The bottom of the movable plate is provided with a connecting handle, a groove is formed in the bottom of the inner side of the outer shell, a push plate is arranged on one side of the groove, a water outlet pipe penetrates through the middle of the other side wall of the outer shell, and a mud discharge pipe penetrates through the bottom of the front face of the outer shell. By means of the structure, when water flow passing through the device is sucked by the submersible pump subsequently, the submersible pump cannot be damaged, blockage in a conveying pipeline is not prone to being caused, meanwhile, occupation of large-particle-size impurities and small-particle-size impurities on the inner space of the device can be reduced, and therefore the adverse effect on normal operation of the device is reduced.

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