Connection and separation device driven by memory alloy wires
US11781576B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 31, 2020 |
| Grant date | Oct 10, 2023 |
| Priority date | — |
| Expiry date | Jun 12, 2042 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16B2200/77
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The disclosure provides a connection and separation device driven by memory alloy wires, including an active end and a passive end. The active end includes a housing, an outer sleeve, fixed sheets, compression springs, a rotating sleeve, a base, memory alloy wires, guide wheels, a lock pin, a limiting sleeve I and a limiting sleeve II. The passive end includes a screw rod, a loading nut, a separation element and an adaptor. The upper end of the screw rod is provided with a threaded section matched with the loading nut, and the lower end of the screw rod is provided with multi-layer oblique protrusions. The multi-layer oblique protrusions extend into the upper part of an accommodating space formed by the limiting sleeve I and the limiting sleeve II. The memory alloy wires are shortened when being electrified, the base and the lock pin move up, the lock pin releases the limit on the lower ends of the limiting sleeve I and the limiting sleeve II, the two limiting sleeves rotate at the same time, the lower parts of the limiting sleeve I and the limiting sleeve II are folded, and the upper parts of the limiting sleeve I and the limiting sleeve II are opened and separated from the screw …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.