Modified rotary type water supply device used for spray system

Abstract

The invention relates to a water supply device, in particular to a modified rotary type water supply device used for a spray system. The water supply device comprises a main body (1), wherein a water cavity is arranged in the main body, the water cavity is provided with a water inlet pipe (2) connected with the water pump, a rotary impeller structure is arranged in the water cavity, a water pipe (15) is integrally arranged on the upper end of the rotary impeller structure, a center shaft (18) is arranged on the lower end of the rotary impeller structure, the rotary impeller structure (3) comprises main impellers (17), the water pipe penetrates through an upper bearing seat (5), the lower end of the main body is matched with a lower bearing seat (6), the water supply device is characterized in that the rotary impeller structure is divided into a reverse umbrella-shaped upper impeller (10), a middle impeller (11) and a lower impeller (12), wherein the reverse umbrella-shaped upper impeller (10), the middle impeller (11) and the lower impeller (12) are vertically connected through screws so as to form an integrated structure, an auxiliary impeller (9) is arranged between every two main impellers (17), a projection part on the upper end of the upper bearing seat (5) is provided with first drainage holes (7) which are arranged at an equal distance, and the lower bearing seat (6) is provided with second drainage holes (8) which are arranged at an equal distance. By adopting the technical scheme, the water supply device has the advantages of reasonable design, easiness in discharging ponding in the water cavity, long service life of the bearing, and strong impeller thrust.

Description

technical field [0001] The invention relates to a water supply device, in particular to an improved rotary water supply device used in a sprinkler system. Background technique [0002] On September 2, 2009, the State Intellectual Property Office published a Chinese invention with application number 200910037408.5, a rotary water supply device used for improvement in sprinkler systems. This structure can effectively push water to high places, and Spread evenly through the rotating nozzle, but due to its design flaws, water accumulates inside the main body, which damages the rotating shaft and reduces its service life; and because of the simple structure of the blades and the large distance between the impellers, the force of the water flow between the impellers cancels out. , cannot achieve consistent thrust from bottom to top, so its thrust is limited. Contents of the invention [0003] Aiming at the defects of the Chinese invention with the application number 20091003740...

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Problems solved by technology

[0002] On September 2, 2009, the State Intellectual Property Office published a Chinese invention with application number 200910037408.5, a rotary water supply device used for improvement in sprinkler systems. This structure can effectively push water to high places, and Spread evenly through the rotating nozzle, but due to its design flaws, water accumulates inside the main body, which damages the rotating shaft and reduces its service life; and because of the simple structure of the blades and the large distance between the impellers, the force of the water flow between the impellers cancels out. , cannot achieve consistent thrust from bottom to top, so its thrust is limited

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