Rotating type water sprayer

Abstract

The invention relates to a rotary sprinkler, which comprises an outer casing, a telescoping drum, a back spring, nozzle components and the rotary switching equipment. The nozzle components comprise a rotary plate, a nozzle and a water inlet tube. The rotary switching equipment comprises a hydraulic cylinder body positioned in the telescoping drum, a piston positioned in the hydraulic cylinder body, a piston connecting rod with the guide rod, an inner drum with double spiral guide grooves and a reversing valve. The reversing valve comprises a valve body and a valve core, and the valve core moves in an up and down manner inside the valve body under the driving of the piston connecting rod to make the water inlet tube and the water path of the upper and lower cavities of the hydraulic cylinder body be communicated. The invention skillfully adopts the structure of installing the rotary switching equipment formed by the hydraulic cylinder body, the piston, the piston connecting rod with the guide rod, the inner drum with the double spiral guide grooves and the reversing valve, which leads the nozzle to automatically extend to realize to-and-fro rotating spraying water when in sprinkling irrigation, and also can automatic contract for hiding, and the invention has a simple structure, which is reliable with long service life.

Description

technical field [0001] The invention relates to a sprinkling irrigation device, in particular to a rotary sprinkler which is installed on the ground and can automatically stretch out and rotate to spray water after the water is turned on, and can automatically retract when the water is turned off. Background technique [0002] Existing sprinklers for gardens, especially buried sprinklers, generally have a fixed height of the water outlet nozzle from the ground after installation, so that when not in use, the water outlet nozzle is still exposed. The long-term exposure of the nozzle is not only easy to be damaged, but also has a short service life, and affects the beauty of the environment, and also brings certain inconvenience to garden operations and users. In addition, the sprinkler has a single function and uneven spraying, and cannot automatically rotate and spray water according to needs, so it is extremely inconvenient to use. The Chinese patent that the patent number...

AI Technical Summary

Problems solved by technology

[0002] Existing sprinklers for gardens, especially buried sprinklers, generally have a fixed height of the water outlet nozzle from the ground after installation, so that when not in use, the water outlet nozzle is still exposed. The long-term exposure of the nozzle is not only easy to be damaged, the service life is short, but also affects the beauty of the environment, and also brings some inconvenience to garden operations and users

In addition, the sprinkler has a single function and uneven spraying, and cannot automatically rotate and spray water according to needs, so it is extremely inconvenient to use

The Chinese patent that the patent number is ZL01242929 discloses a kind of sprinkler for this reason, and it adopts the driving cylinder of device band back-moving spring, central tube, puller, control pipe and by being pivotally connected to the lower blade runner of driving cylinder, The structure of the rotary reversing device composed of gear transmission group, reversing clutch frame, gear shaft, etc., so that it can automatically extend after passing through the water, and drive the gear transmission group and The gear shaft moves, and then the gear shaft drives the single gear and double gear on the reversing clutch frame and the internal gear to make the conduit and the sprinkler rotate to sprinkle water; and when the conduit rotates to the set angle, the pull column in the pull plate When it touches the bump on the control pipe or the inner puller wing of the conduit, it drives the puller to rotate and correspondingly drives the reversing clutch frame to swing, and then the inner gear is reversed and rotated through the movement of the single gear and double gear and the meshing action of the inner gear. And make the conduit and the sprinkler switch to sprinkle water, repeat the above-mentioned reverse process, the sprinkler can automatically reciprocate sprinkle water, and when the water is turned off, it can be automatically retracted to hide in the outer shell, so it is convenient to a certain extent. However, because it uses the impeller, gear clutch transmission group, reversing clutch frame, and gear shaft in the reversing part, it has high manufacturing process requirements, high gear precision requirements, unstable quality, and short service life, so it is difficult to meet The requirements of the majority of consumers

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