Syringe Mixing Tip Dual-Locking Mechanism
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Solution Overview
Problem
Existing mixing tips for syringes containing pastes are not easily or securely locked to syringe holders, leading to potential detachment and inefficiencies in mixing, especially requiring time-consuming screwing mechanisms and not ensuring proper paste ratio during kneading.
Innovation Solution
A mixing tip design featuring a housing with a paste guiding member and two locking members, including a pawl part and projection, which securely locks onto the syringe holder by insertion, allowing easy and certain fixation without the need for complex screwing, and includes a releasing mechanism for easy removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single rotation locking mechanism is used to fix the mixing tip, then the structure is simple, but the mixing tip is not securely locked and may fall off
Solution Approach 1:
The locking mechanism is divided into two independent locking members (first and second locking members) that separately engage with the syringe holder. Each locking member has its own locking projection that fits into a corresponding locking groove, providing dual-point secure attachment and preventing the mixing tip from detaching during use.
2Reliability
If a coupling nut is screwed onto a male screw to secure the mixing tip, then the locking is certain, but the attachment process becomes time-consuming and complex
Solution Approach 1:
The traditional screw-threaded coupling mechanism is replaced with a direct insertion and snap-fit locking system. The locking members are designed to engage with the syringe holder through simple insertion and rotation, eliminating the need for threading and coupling nuts, thereby significantly reducing attachment time and operational complexity.
3Reliability
If a complex screwing process is required to attach the mixing tip, then the locking is secure, but the ease of operation is reduced
Solution Approach 1:
The locking members are pre-configured with spring elements and locking projections that automatically engage with the syringe holder upon insertion. The spring-loaded mechanism provides automatic locking without requiring manual threading or complex操作步骤, making the attachment process both secure and operationally simple.
Data Source
AI summary
For easier and surer fixing to a syringe holder, a mixing tip fixed at two portions of a top end of a syringe holder (X) containing two parallel syringes (Y, Y) comprising: a housing (2) including a mixing element (1); a paste guiding member (3) including paste inlets (3a) attached to nozzles of two syringes (Y, Y), and flow paths (3b) to introduce pastes extruded from the syringes into the housing (2) through the paste inlets (3a); and two locking members fixed at or integrally formed with the paste guiding member (3) or the housing (2) to be locked to the syringe holder (X), wherein the two locking members are a pawl part (4) locked with a locking hole (Xa) formed at the syringe holder (X) and a projection part (5) inserted into a hole part (Xb) provided at the syringe holder (X), or two pawl parts (4, 4).