Portable door chain lock
Patent Information
- Application Number
- TW114124354
- Authority / Receiving Office
- TW · TW
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2025-06-27
- Publication Date
- 2026-10-01
- Estimated Expiration
- 2045-06-26
Smart Images

Figure TWG2TB001913922_001 
Figure TWG2TB001913922_002 
Figure TWG2TB001913922_003
Abstract
Claims
1. A portable door chain lock, comprising: A door handle fastener includes a fastening part and a main body having an internal space. One end of the main body has an opening that connects to the internal space, and the fastening part is connected to the outside of the main body. A fixing strip includes a plurality of connecting holes that can be movably fastened to the fastening part. The other end of the main body with the opening is a closed end, and the width of the internal space gradually narrows from the opening to the closed end.
2. The portable door chain lock as described in claim 1, wherein the fixing bar can be stored in the internal space when the plurality of connecting holes of the fixing bar are not engaged with the buckle.
3. The portable door chain lock as described in claim 1, wherein the fixing bar is in the form of a chain.
4. The portable door chain lock as described in claim 1, wherein the number of the latches is two.
5. The portable door chain lock as described in claim 4, wherein each latch is symmetrically connected to the outside of the main body.
6. The portable door chain lock as described in claim 1, wherein the main body is in the shape of a bullet.
7. The portable door chain lock as described in claim 1, wherein the latch is L-shaped.
Citation Information
Patent Citations
Security door lock chain
CN206668002U
movable door stop
TW235677U
Strike Plate Lock
US20160298361A1
Disposable emergency duty latch disabling strip
US20190032371A1
Door restraint
US20210123274A1
