Universal spray head assembly, universal spray head and spraying device

Abstract

The invention provides an universal spray head assembly, an universal spray head and a spraying device. The universal spray head assembly comprises a first rotating pipe fitting and a second rotatingpipe fitting, the first rotating pipe fitting comprises a first plug end and a nozzle mounting end, and the included angle between the central axis of the first plug end and the central axis of the nozzle mounting end is 20-45 degrees. The first rotating pipe fitting rotates by taking the central axis of the first plug end as an axis. The second rotating pipe fitting comprises a second inserting end and a second plug end, the second plug end comprises a second clamping part, the included angle between the central axis of the second inserting end and the central axis of the second plug end is 20-45 degrees, and the second rotating pipe fitting rotates with the central axis of the second plug end as the axis. According to the above technical scheme, the spraying direction of a nozzle can beuniversally adjusted, pressure drop and energy loss caused by vortexes generated at the turning position of a flow channel are avoided, and the spraying direction is prevented from being changed underthe action of a spraying reacting force and gravity. By simplifying internal elements of the first rotating pipe fitting and the second rotating pipe fitting, the size is reduced.

Description

technical field [0001] The invention relates to the field of spray heads, in particular to a universal spray head assembly, a universal spray head and a spray device. Background technique [0002] At present, the interior of the integrated universal nozzle uses a spherical structure to connect and adjust the angle, but the adjustable spray angle is generally about ±15°, the adjustment range is small, and the flexibility of use is poor, which cannot meet the use requirements; [0003] For example, Chinese utility model CN ​​207343079 discloses a spray assembly, including a three-way joint, a direct joint, a first elbow joint, a second elbow joint, a third elbow joint and a spray nozzle, and one end of the direct joint is rotatable and detachably connected At one end of the tee joint, the other end of the straight joint is rotatably and detachably connected to one end of the first elbow joint, and the other end of the first elbow joint is rotatably and detachably connected to ...

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned utility model adjusts the spraying direction through the three-dimensional rotation of the three elbow joints, resulting in too many parts of the spray assembly, increasing the failure rate and increasing the cost, and the volume is large, which affects the appearance; The maximum force arm is the vertical distance from the rotation axis of the first elbow to the rotation axis of the third elbow. Due to the reaction force generated when the liquid is sprayed through the spray nozzle and the gravity of the spray assembly itself, it is easy to cause the spray assembly to wrap around the first elbow. The rotation axis of the rotation axis and the rotation axis of the second elbow joint are displaced, so that the injection angle changes, which affects the stability of the injection direction; and because the straight elbow joint is used, the internal flow channel is a right-angle flow channel, which is easy to retain air bubbles and cause pressure loss. And when the liquid flows through the right-angle flow channel, the vortex generated causes pressure drop and energy loss

Images