GB/T 16930.2-2021 in English
VALIDTactile sticks -- Part 2: Performance requirements and test methods
- Issued on:2021-03-09
- Implemented on:2021-03-09
- File Format:PDF
- Delivery:Via email within 1~3 business days
$165.00
| Standard No: | GB/T 16930.2-2021 |
| Document status: | VALID |
| Title in English: | Tactile sticks -- Part 2: Performance requirements and test methods |
| Title in Chinese: | 盲杖 第2部分：性能要求和试验方法 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 1~3 business days |
| Issued on: | 2021-03-09 |
| Implemented on: | 2021-03-09 |
| Superseding: |
GB/T 16930.2-2009 Tactile sticks - Technical specification
|
| Professional Classification: | GB-National Standard |
| Related Keywords: | mechanical strength test test
static load test machine folding mechanism test sequencechapter test methods introduction core changes looseness performance test case a |
| Related Topics: | blind
rod double blind test GB/T 16930.2 GB/T 16930.2-1997 GB/T 16930.2-2009 GB/T 16930.2-2021 blind stick |
《GB/T 16930.2-2021盲杖 第2部分：性能要求和试验方法》由TC148（全国残疾人康复和专用设备标准化技术委员会）归口，主管部门为民政部。
Introduction
Core changes in the standard revision
| Revision dimensions | 2009 version | 2021 version | Technical significance |
|---|---|---|---|
| Cane tip requirements | Not separately specified | Add wheel rotation performance | Improve the road perception and feedback ability of the cane |
| Looseness standard | Not quantified | ≤5mm | Precisely control the stability of the folding mechanism |
| Test sequence | Chapter 7 | Chapter 6 reorganization | Optimize the logic of the detection process |
Analysis of key performance indicators
5.2.3 Technical requirements for cane tip
The standard requires that the cane tip be made of wear-resistant insulating material and produce obvious knocking sound feedback on hard roads. New requirements for wheel rotation: Rotation smoothness ≤ 0.5N·m torque, and abnormal sound detection must be carried out under a 30dB background noise environment.
5.6 Mechanical strength test
| Test type | Loading conditions | Qualification standard | Figure number |
|---|---|---|---|
| Bending strength | 30N static load 5s | Displacement ≤25mm | Figure 5 |
| Static load strength | 300N hold 10min | No structural damage | Figure 6 |
Key points for detection implementation
6.2 Looseness performance test case
A certain testing agency conducted a test on aluminum alloy folding blind stick shows that when a load of 1.2 times its own weight is applied, the displacement at the center of mass is 3.8mm (the standard requirement is ≤5mm). It should be noted that the clamping force of the bracket should be controlled within the range of 5-10N to avoid test errors.
Standard application recommendations
- Material selection: TPE+silicone composite material is recommended for the handle, and the Shore hardness is recommended to be 75A-85A
- Process control: The hinge of the folding mechanism needs to be opened and closed 20,000 times
- Testing equipment: The accuracy of the static load test machine should reach ±1%, and the displacement measurement resolution should be 0.01mm
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