1、 Structural composition
The garden metal swing arm spray gun is mainly composed of the following components:
Nozzle: Convert high-pressure water flow into atomized water droplets, controlling the spraying range and particle size.
Swing arm mechanism: includes a rotating shaft, bearings, and driving device to achieve horizontal or vertical swing of the spray gun.
Inlet pipeline: Connect the water source (such as a water pump) to deliver high-pressure water flow.
Bracket and base: fix the spray gun, adjust the spray angle and height.
2、 Core working principle
Water flow drives rotation
When high-pressure water flows through the nozzle, a reaction force (recoil force) is generated, which drives the spray gun to rotate around the axis.
Example: If the nozzle tilts downwards, the direction of the water flow recoil forms an angle with the axis of the spray gun, generating torque and driving the rocker arm to swing.
Rotation and spraying linkage
The rocker arm mechanism converts rotational motion into an extension of the spraying range.
Full circle spraying: achieves uniform coverage through 360 ° rotation, suitable for large areas of lawn.
Fan shaped spraying: limited rotation angle (such as 90 ° -270 °), suitable for flower beds or narrow and long areas.
Water pressure and flow regulation
Water pressure: determines the spraying distance and particle size (high pressure=long distance+fine mist, low pressure=short distance+coarse droplets).
Flow rate: Controlled by valves, it affects irrigation efficiency and water consumption.
3、 Key technical parameters
The role of typical parameter values
Working pressure of 2-5 bar drives rotation and affects spraying effect
Range 5-20 meters coverage range
Flow rate 0.5-5 m ³/h unit time water spray volume
Rotate the angle from 0 ° to 360 ° to adjust the spraying area
4、 Application scenarios and advantages
Application scenarios
Park lawns, golf courses, and farmland irrigation.
In situations where uniform spraying is required (such as pesticide spraying).
advantage
Uniform coverage: The rotating design avoids missed or repeated spraying.
Water saving and efficient: Atomization spraying reduces evaporation losses.
Strong adaptability: adjustable angle and pressure, suitable for different terrains.
5、 Maintenance and Precautions
regular inspection
Bearing lubrication: prevent jamming and hinder rotation.
Nozzle cleaning: Avoid clogging that affects the spraying effect.
anti-freezing measure
In winter, it is necessary to drain accumulated water to prevent freezing and cracking.
Safety Tips
High pressure water flow may cause injury, and protective equipment should be worn during operation.
6、 Analogical explanation of working principle
Analogous to car wipers: the water flow recoil drives the spray gun to rotate, similar to the wiper motor driving the blade to swing.
Analogous fan shaking: The rocker arm mechanism controls the spraying angle, similar to the shaking design of a fan.
summarize
The garden metal swing arm spray gun is driven to rotate by the water flow recoil force, combined with the swing arm mechanism to achieve uniform spraying. It has the advantages of water saving, high efficiency, and wide coverage, and is an important equipment for garden irrigation.