Multi-Joint Shower Arm for Combined Height and Angle Adjustment

The patent combines height adjustment and angle adjustment functions into a single integrated multi-joint mechanism. The two pivot arms work together as one unified system, allowing both height and angle to be adjusted simultaneously through a single operation, rather than requiring separate mechanisms for each function.

The multi-joint mechanism serves multiple functions: it provides height adjustment, angle adjustment, and self-locking capability all within a single device structure. The pivot arms are designed to perform both positioning and locking functions, eliminating the need for additional separate components.

The patent merges height adjustment and angle adjustment into a single coordinated motion of the multi-joint mechanism. When the user operates the mechanism, both the vertical position and angular orientation are adjusted simultaneously through the coupled movement of the two pivot arms, achieving precise positioning with one action.

The mechanism allows dynamic adjustment where the relationship between height and angle changes continuously during operation. The pivot arms can be positioned at any angle within their range, and the self-locking feature maintains precision at each position while allowing easy repositioning when force is applied.

The multi-joint mechanism incorporates self-locking features that automatically maintain the adjusted position without requiring additional locking components or complex control systems. The friction and geometry of the pivot arms themselves provide the locking action, making the system self-sufficient for maintaining position.

The patent extracts the locking function from separate locking mechanisms and integrates it directly into the pivot arm structure itself. The self-locking capability is built into the basic structure of the joints, eliminating the need for additional locking devices and reducing overall system complexity.