Steering Joint Layout with Separated Pivot and Lock Points
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Solution Overview
Problem
Conventional steering joints face challenges in freely adjusting angles due to the pivoting points and locking points being coincident, leading to reduced load capacity and ease of anti-slip structure collapse under heavy equipment loads.
Innovation Solution
A steering joint design featuring a base with a sleeve and first pivot plate, a rotary base with a clamp and second pivot plate, and a locking piece that separates the pivoting and clamping positions, allowing for relative rotation and secure locking without a sawtooth anti-slip structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the pivoting point and locking point are located at the same position in a conventional steering joint, then the structure is simple, but the load-carrying capacity is reduced and the tightening knob can be easily loosened under heavy equipment loads
Solution Approach 1:
The patent divides the steering joint into distinct functional components: a base with a first pivot plate, a rotary base with a second pivot plate, and a locking piece. The pivot point and locking point are spatially separated into different locations, allowing the pivot plates to rotate freely while the locking piece secures the joint at desired angles. This segmentation resolves the contradiction by enabling both structural simplicity and high load-carrying capacity.
2Strength
If a sawtooth-shaped anti-slip structure is used to prevent loosening under heavy loads, then the load-carrying capacity is improved, but the minimum angle adjustment problem occurs and the structure may collapse when operated incorrectly
Solution Approach 1:
The patent extracts the locking function from the pivot mechanism by introducing a separate locking piece that engages with the pivot plates at a location distinct from the pivot point. This extraction eliminates the need for a sawtooth-shaped anti-slip structure, as the locking piece provides secure engagement without interfering with smooth angle adjustment. The solution resolves the contradiction by maintaining high load-carrying capacity while enabling precise and safe angle adjustment.
Data Source
AI summary
The invention discloses a steering joint for connecting a bottom pipe and a supporting pipe, which comprises a base, a rotary seat and a locking piece. The base comprises a sleeve portion connected with the bottom pipe and a first pivoting plate comprising a guide groove. The rotary seat comprises a clamp for clamping the supporting pipe and a second pivoting plate comprising a through hole. The first pivoting plate and the second pivoting plate are pivoted together at a pivoting point, when the first pivoting plate and the second pivoting plate rotate relatively, the through hole is kept align to the guide groove. The locking piece penetrates through the through hole and the guide groove and clamps and fixes the first pivoting plate and the second pivoting plate. Through that a certain distance exists between the locking piece and the pivoting point, the load carrying capacity is increased.