Toy Rifle Backlash Vibration Structure with Adjustable Spring
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Solution Overview
Problem
Existing toy rifle backlash vibration structures wear out quickly due to the piston interacting with the connection rod, and the vibration level becomes non-adjustable and reduced over time due to fixed weight and decreasing spring forces.
Innovation Solution
A backlash vibration structure with a detachable buttcap spacer and an adjustment knob that allows for adjustable spring force, featuring a weight with a base and front tip connected to the piston spring, and a reaction spring connected between the weight and buttcap spacer, enabling easy maintenance and adjustable vibration levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the connection rod is connected between the piston spring and the weight with its front end suspending in the piston, then the backlash vibration structure can be assembled, but the piston wears quickly with use due to striking between the piston and connection rod
Solution Approach 1:
The connection rod is extracted from the piston interior, eliminating the striking problem between the connection rod and piston. The weight is directly connected to the piston spring instead of through the connection rod, removing the source of piston wear while maintaining the backlash vibration function.
Solution Approach 2:
The weight serves as an intermediary element that transmits the spring force from the piston spring to the reaction spring. This direct connection through the weight eliminates the need for the connection rod to pass through the piston, thereby preventing piston wear while maintaining force transmission.
2Device complexity
If the weight and spring forces are fixed, then the structure is simple, but the backlash vibration level becomes non-adjustable and reduces over time
Solution Approach 1:
The reaction spring is designed with an adjustable pre-compression structure, transforming the fixed spring force into a dynamically adjustable parameter. This allows the backlash vibration level to be modified according to different usage requirements while maintaining structural simplicity.
Solution Approach 2:
The pre-compression amount of the reaction spring is changed as a可调 parameter to control the backlash vibration level. By adjusting the pre-compression distance, the spring force can be varied without changing the physical structure, enabling flexible adaptation to different vibration requirements.
3Stability of the object's composition
If the weight is fixed in position, then the structure is stable, but the backlash pressure cannot be adjusted after long use when spring forces decrease
Solution Approach 1:
The reaction spring assembly is designed with adjustable pre-compression capability, allowing the spring force to be dynamically adjusted to compensate for the natural degradation of spring properties over time. This maintains consistent backlash vibration performance while preserving structural stability.
Solution Approach 2:
The adjustable pre-compression mechanism provides a feedback adjustment capability, allowing users to monitor and correct the decreasing spring force effect over time. By periodically adjusting the pre-compression amount, the system compensates for spring degradation and maintains reliable vibration performance.
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 structure prolongs the piston's working life by preventing wear and allowing users to adjust vibration levels, ensuring consistent performance and easy maintenance.
Implementation Method 1
a reaction spring (40) connected between the weight (30) and the buttcap spacer (50)
Implementation Method 2
the reaction spring (40) forces the weight (30) forwards, and the piston (10) is moved forwards in a rush
Implementation Method 3
The piston (10) has its rear side mounted with a piston spring (101)
Implementation Method 4
the piston spring (101) forces the piston (10) forwards to shoot the bullet
Implementation Method 5
the connection rod (60) is moved with the piston (10) to force the weight (30) against the reaction spring (40)
Data Source
AI summary
A backlash vibration structure for toy rifle (air soft rifle, BB-rifle) formed of a receiver extension, a weight, a reaction spring and a buttcap spacer is disclosed. The weight has a front extension inserted through the lower receiver of the toy riffle and connected to the rear end of the piston spring at the rear side of the piston so that the component parts of the backlash vibration structure doe not touch the piston during movement of the piston. An adjustment knob is provided at the buttcap spacer for adjustment of the reaction spring to adjust the level of the backlash vibration.