Time switch for ipsilaterally controlled garden sprinkler with auxiliary spring and without long shaft

Abstract

The invention relates to a control method for environment protection and watering flow of landscaping, in particular to a time switch for an ipsilaterally controlled garden sprinkler with an auxiliary spring and without a long shaft, wherein the improved scheme comprises the steps of: newly adding the auxiliary spring to a mechanical timer, uniquely cancelling the stainless steel long shaft, and replacing the double-side control of a large tube by the structure that a main control valve, a pilot valve and the mechanical timer are arranged at the same side of a main channel; and a main body ofthe mechanical timer is movable and a main gear shaft is fixed. Since the stainless steel long shaft is cancelled and the main body of the mechanical timer is movable, the method greatly saves parts and the size and improves the reliability.

Description

technical field [0001] The invention relates to a control method for water flow used in environmental protection and landscaping, especially a garden sprinkler timing switch with auxiliary spring and no long axis controlled on the same side, especially an improved machine with auxiliary spring The timer and the unique garden sprinkler timing control switch controlled by both sides of the big pipe are changed by canceling the stainless steel long axis. Background technique [0002] The desire to pursue environmental protection and landscaping is endless; there are also many patents on the control method of watering water flow, and the timing switch of garden sprinklers controlled by both sides of the long axis, such as patent US7252113B2, and Patent ZL200820120164.8 all adopts the timing switch of the garden sprinkler controlled by both sides of the long axis. Although the mechanical timer is widely used because of its firm structure, strong weather resistance, reliable use,...

AI Technical Summary

Problems solved by technology

Although the mechanical timer is widely used because of its firm structure, strong weather resistance, reliable use, and excellent cost performance, the two ends of the double gear shaft (11) are respectively set in the two oblong holes of the mechanical timer frame. However, only one end has an auxiliary spring, and the other end does not have an auxiliary spring, which lacks the proper balance moment. Therefore, during torsion and operation, the double gear shaft (11) and the meshing main gear shaft (15) cannot Parallel, there are potential hidden dangers of long-term operation wear resistance and stability

Furthermore, due to structural problems, the main control valve and pilot valve are set on one side of the main channel, and the mechanical timer is set on the other side of the main channel, causing the mechanical timer to be far away from the main channel it should directly control. Control valves and pilot valves have to be pushed out remotely with long stainless steel rods, which not only results in higher requirements for manufacturing tolerances and precision, but also causes occasional Euler instability of the pressure rod during long-term use; It also causes the long stainless steel rod to be exposed and penetrated in the main channel, and it is easy to rust and adhere to hinder the movement; in addition, the long stainless steel rod penetrates through the main channel and has a problem of sealing and leakage over time

And because, the described main control valve and pilot valve are arranged on one side of the main passage, and the scheme of setting the mechanical timer on the other side of the main passage is to set the main control valve far away from the conventional idea. And the pilot valve and main channel are immobile relative to the main body of the mechanical timer, so the remote main control valve pilot valve and main channel should be connected with the main body of the mechanical timer with a larger housing, resulting in the garden sprinkler The profile of timing switch is bigger; Simultaneously, outside the thin shaft of the main gear shaft (15) that plays a control role of mechanical timer, also have to rotate and control with very big rotary gradient circle and several parts, promptly multi-purpose part and Some aspects of the rotating gradient ring, such as the plastic square hole in the middle, are subjected to lateral torque to make the slope ring disc skew and affect the effect

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