Sliding Buffer Bracket Structure to Absorb Impact Without Rebound
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Solution Overview
Problem
When vehicles brake suddenly or are accidentally impacted, personnel may collide with on-board electronic devices, causing damage due to the lack of effective energy absorption and protection mechanisms.
Innovation Solution
A buffer bracket is designed with a base, a moving part, and an elastic buffer, featuring positioning holes and pins that guide and lock the moving part under impact, absorbing energy and preventing rebound.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fixed mounting structure is used for vehicle electronic devices, then the device is securely held in place, but during sudden braking or impact, the device cannot move to absorb impact energy, causing damage to personnel or equipment
Solution Approach 1:
The mounting bracket transitions from a fixed structure to a dynamic system with a movable part that can slide along the first direction. The movable part is connected to the base through positioning holes and positioning pins, allowing it to move forward under external force while maintaining connection. This dynamic structure enables the device to move forward during impact to absorb energy, resolving the contradiction between secure mounting and impact protection.
Solution Approach 2:
The elastic buffer is pre-installed between the base and the movable part, compressed in the initial state. When impact occurs, the buffer further compresses to absorb impact energy before the movable part reaches its forward limit. This beforehand cushioning mechanism prepares the system to handle impact forces, protecting both the device and personnel during sudden braking or collision events.
2Object-affected harmful factors
If the movable part is allowed to move forward under external force to absorb impact energy, then impact protection is improved, but the device may rebound after impact due to elastic buffer recovery, causing secondary damage
Solution Approach 1:
The positioning holes are pre-configured with guide surfaces and stop surfaces in specific positions along the first direction. The guide surfaces guide the positioning pins during forward movement, while the stop surfaces are positioned to limit forward displacement. This preliminary arrangement of positioning features ensures that when the elastic buffer compresses and then recovers, the movable part is constrained by the stop surface and cannot rebound, preventing secondary damage while maintaining impact absorption capability.
3Manufacturing precision
If multiple positioning holes with guide surfaces and stop surfaces are implemented, then the movable part is accurately guided and limited during impact, but the base structure becomes more complex
Solution Approach 1:
The positioning holes serve multiple functions: they guide the positioning pins during normal operation, guide the pins during forward movement through guide surfaces, and limit forward displacement through stop surfaces. The same positioning hole structure accomplishes guidance, limitation, and positioning functions simultaneously. This multi-functionality reduces the need for separate guidance mechanisms and limit stops, thereby reducing overall structural complexity while maintaining high positioning accuracy during impact events.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The buffer bracket effectively absorbs impact energy, preventing the vehicle electronic device from rebounding and reducing the risk of injury by securely locking the moving part, thus protecting both the device and personnel.
Implementation Method 1
an elastic buffer elastically compressed between the base and the moving part; when the moving part moves in the forward direction of the first direction relative to the base under an external force, the elastic buffer is compressed
Data Source
AI summary
The disclosure provides a buffer bracket, which comprises a base, a moving part, an elastic buffer and a positioning pin. The base is provided with a group of holes, which comprises a plurality of positioning holes arranged in sequence along the first direction. The moving part is movably fitted to the base along the first direction. The elastic buffer is elastically compressed between the base and the moving part. The locating pin is installed on the moving part. When the moving part moves forward in the first direction relative to the base under external force, the positioning pin is restricted to a certain positioning hole. The beneficial effect of the disclosure is that it can absorb impact energy and avoid rebound.