Portable door chain lock

TWI941288BActive Publication Date: 2026-10-01SHOPIN LOCK +2
View PDF 5 Cites 0 Cited by

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_001
  • Figure TWG2TB001913922_002
    Figure TWG2TB001913922_002
  • Figure TWG2TB001913922_003
    Figure TWG2TB001913922_003
Patent Text Reader

Abstract

This invention relates to a portable door chain lock, comprising: a door handle fastener, which includes a fastener portion and a main body, the main body having an internal space and an opening at one end communicating with the internal space, the fastener portion being connected to the outside of the main body; and a fixing strip, which includes a plurality of connecting holes that can be movably engaged with the fastener portion. In actual use, it can be installed on the locks of a double lock and a door handle to limit the downward movement of the door handle, thereby further increasing the security when locking the door panel.
Need to check novelty before this filing date? Find Prior Art

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