Sleeved Ground Anchor for Multi-Target Fixing Without Pre-Drilling
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Solution Overview
Problem
Existing anchors require multiple processes and specialized configurations for fixing different types of targets, leading to increased installation time and cost, and are difficult to adapt for various applications.
Innovation Solution
An anchor design featuring a rod-like shaft with a head and a sleeve that allows for multiple fixing methods, including fitting, retaining, and threaded engagement, without the need for pre-drilled holes, enabling versatile fixation of various targets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If pre-drilled holes are required for anchor installation, then the anchor can be securely installed in the ground, but the number of work processes increases and installation time becomes long
Solution Approach 1:
The anchor body is designed with a burring portion that performs preliminary ground preparation during the insertion process itself, eliminating the need for separate pre-drilling operations. The burring portion creates an expanded cavity as the anchor is driven into the ground, providing immediate anchorage without requiring prior hole formation.
Solution Approach 2:
The patent extracts the hole-forming function from a separate pre-drilling process and integrates it into the anchor body structure itself. The burring portion is a dedicated component that performs the ground disruption and cavity creation function that previously required a separate drilling operation.
2Reliability
If pre-drilled holes are required for anchor installation, then the anchor can be securely installed in the ground, but the number of work processes increases and installation cost becomes high
Solution Approach 1:
The anchor body is designed with a burring portion that performs preliminary ground preparation during the insertion process itself, eliminating the need for separate pre-drilling operations. The burring portion creates an expanded cavity as the anchor is driven into the ground, providing immediate anchorage without requiring prior hole formation.
Solution Approach 2:
The patent merges the ground preparation function and the anchoring function into a single integrated operation. The anchor body simultaneously performs ground disruption, cavity creation, and self-installation in one continuous process, eliminating the need for separate drilling and anchoring steps.
3Reliability
If the anchor is specialized for fixing specific targets like bearing plates or concrete supports, then it can securely fix those targets, but it becomes difficult to fix other types of fixing targets
Solution Approach 1:
The anchor is designed with a universal interface system consisting of a head portion and various retaining members that can accommodate multiple types of fixing targets. The retaining members include different configurations (such as washers, plates, or clamping elements) that can be selectively applied to secure various target objects, making the anchor suitable for diverse applications beyond its original specialized purpose.
Solution Approach 2:
The anchor incorporates adjustable or interchangeable retaining members that can be dynamically configured to match different fixing target requirements. This allows the anchor system to adapt its retention mechanism based on the specific application, whether for bearing plates, concrete supports, or other types of targets.
4Ease of operation
If a head is provided on the upper end portion of the shaft, then the shaft can be buried without pre-drilled holes, but the head may slip upward relative to the shaft during installation
Solution Approach 1:
The retaining member is pre-configured on the shaft or anchor body to engage with the head portion before the propulsive force is applied. This preliminary engagement ensures that the head and shaft maintain their relative positions throughout the burial process, preventing any upward slipping of the head relative to the shaft during installation.
Solution Approach 2:
The retaining member is designed with a curved or tapered surface that conforms to the head portion geometry. This curved interface provides friction-based retention and mechanical interlocking, preventing relative movement between the head and shaft while allowing for easy assembly and disassembly if needed.
Data Source
AI summary
An anchor is provided whose number of processes of work at the time of performance of installation work can be reduced and which can selectively fix a plurality of types of fixing targets. An anchor 10 includes: a shaft 22 to be buried in a ground; a head 24 into which a propulsive force for propelling the shaft 22 in the ground is inputted, the head 24 being provided on an upper end portion 22a of the shaft 22; and a sleeve 26 having a tubular peripheral wall portion 42 placed around the head 24. An outer diameter of the head 24 is specified to be greater than an outer diameter of the shaft 22. Consequently, an undersurface 32a is secured on an outer peripheral portion 32 of the head 24. The peripheral wall portion 42 is provided in an upper end portion 42a with an opening portion 44 in which a first fixing target 12c, 12d, or 12f is fitted as needed. The peripheral wall portion 42 is provided in a lower end portion 42b with a retainer 46 including an opposing surface 48 facing the outer peripheral portion 32 (the undersurface 32a) of the head 24 from below, and a retaining surface 50 to be pressed against a second fixing target 12a or 12b from above as needed.