Title:
RETRACTABLE LAMP CAPABLE OF REDUCING FRICTION FORCE
Document Type and Number:
WIPO Patent Application WO/2023/159375
Kind Code:
A1
Abstract:
A retractable lamp capable of reducing a friction force. The retractable lamp comprises a lamp screw base (1), wherein the lower end of the lamp screw base (1) is connected to the upper end of an upper lamp housing (2); an outer surface of the upper lamp housing (2) is provided with ribs, which protrude outwards along the body of the upper lamp housing (2) and are connected to a middle lamp housing (3) by means of gaps between adjacent ribs provided inside the middle lamp housing (3); the lower end of the upper lamp housing (2) is provided with a fixing assembly for fixing an elastic ring (5); an opening part at the upper end of the middle lamp housing (3) extends inwards, and the body of the upper lamp housing (2) passes through the opening part in an exact manner; and snap joints (32) are provided on an upper surface of the lower end of the middle lamp housing (3) and are configured to fix a lower lamp housing (4) when connected to the lower lamp housing (4). The elastic ring (5) in the fixing assembly at the lower end of the upper lamp housing (2) elastically deforms by itself to exert an acting force on the upper lamp housing (2) and the middle lamp housing (3), so as to fix the relative positions of the upper lamp housing and the middle lamp housing, such that the retractable lamp meets the requirements for the height of an illumination apparatus in different spaces; and by means of the design of the ribs, jamming caused by surface friction during extension and retraction can be avoided, thereby reducing a friction force and facilitating extension and retraction.
Inventors:
LAI YONGQING (CN)
Application Number:
PCT/CN2022/077415
Publication Date:
August 31, 2023
Filing Date:
February 23, 2022
Export Citation:
Assignee:
FUJIAN YDJ LIGHT CO LTD (CN)
International Classes:
F21V21/22; F21V15/01; F21V21/36
Foreign References:
| CN104763952A | 2015-07-08 | |||
| CN208139002U | 2018-11-23 | |||
| CN213362140U | 2021-06-04 | |||
| CN113915560A | 2022-01-11 | |||
| CN107300140A | 2017-10-27 | |||
| US10767844B1 | 2020-09-08 |
Attorney, Agent or Firm:
FUZHOU GEMHOPE PATENT AGENCY (CN)
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