Crossbow Retention Structure With Dynamic Fixer
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Solution Overview
Problem
Conventional crossbows suffer from instability and deformation of the connection mount after shooting, due to the fixed guide sleeve which can deform or break easily.
Innovation Solution
A retention structure featuring a fixer with a seat, rolling element, resilient element, and shock absorber that contacts the connection mount, allowing adjustable movement and vibration absorption, preventing deformation and damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a fixed guide sleeve is used to stabilize the crossbow after shooting, then the crossbow stability is improved, but the connection mount deforms or breaks easily
Solution Approach 1:
The fixer is designed with a resilient element (spring) that allows dynamic adjustment of the guide sleeve position. The spring enables the guide sleeve to move forward to contact the arrow for stability, then retract automatically, providing adjustable support rather than a fixed rigid connection. This dynamic mechanism prevents stress concentration on the connection mount while maintaining crossbow stability during and after shooting.
2Reliability
If the guide sleeve is screwed tightly to the connection mount, then the guide sleeve position is fixed, but the connection mount deforms or breaks easily
Solution Approach 1:
The fixer is divided into separate functional components: a guide sleeve for positioning, a resilient element for absorption, and a shock absorber for impact mitigation. This segmentation allows the guide sleeve to be securely positioned without requiring the connection mount to bear all the mechanical stress, as the resilient element and shock absorber independently handle forces and deformations.
3Stability of the object's composition
If a rigid fixer is used to stabilize the crossbow, then the stability is improved, but the fixer cannot be adjusted based on using requirements
Solution Approach 1:
The resilient element (spring) provides dynamic adjustability by allowing the guide sleeve to move forward when needed for stability and then retract automatically. This elastic mechanism enables the fixer to adapt between different operational states (shooting preparation, shooting execution, post-shooting) without requiring manual repositioning or multiple fixed configurations.
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 retention structure enhances stability and ease of removal after shooting, preventing connection mount deformation and enabling quick reconfiguration, while maintaining structural integrity.
Implementation Method 1
a resilient element, and a shock absorber... two ends of the resilient element abut against the bottom of the connection mount and the rolling element
Data Source
AI summary
A retention structure of a crossbow contains a fixer including a seat, a rolling element, a resilient element, and a shock absorber. The seat has an affix sheet, a fitting tube, at least one threaded aperture, an accommodation aperture, and an engagement portion. A diameter of the engagement portion is less than that of the accommodation aperture. The seat contacts with the connection mount. At least one screwing element screws with the at least one threaded aperture via the at least one locking orifice. The rolling element is housed in the accommodation aperture of the seat and is limited by the engagement portion. The resilient element is housed in the accommodation aperture and abuts against the connection mount and the rolling element. The shock absorber has a through hole and fits on the fitting tube of the seat by using the through hole.