Title:
MULTI-STAGE SPEED ADJUSTMENT DEVICE FOR SOFA PUSH RODS
Document Type and Number:
WIPO Patent Application WO/2024/026915
Kind Code:
A1
Abstract:
A multi-stage speed adjustment device for sofa push rods, comprising a power adapter (1); push rods (5, 6) and push rod motors, the push rod motors driving the push rods (5, 6); and a hand controller (3) provided with a button switch (9) and a control circuit (8) and used for driving the push rod motors, wherein the control circuit (8) comprises a voltage regulation assembly, and the hand controller (3) controls the voltage regulation assembly by means of the button switch (9) to obtain voltages of different polarities so as to drive the push rod motors, thereby achieving multi-stage speed adjustment of the push rods (5, 6). The manufacturing costs of the adjustment device can be greatly reduced, the size is reduced, and the requirements of the sofa push rods (5, 6) for different speeds during extending and retracting can be met.
Inventors:
XU LIN (CN)
ZHENG XIAOPING (CN)
ZHENG XIAOPING (CN)
Application Number:
PCT/CN2022/111825
Publication Date:
February 08, 2024
Filing Date:
August 11, 2022
Export Citation:
Assignee:
HAINING NAAN INTELLIGENT DRIVE CO LTD (CN)
International Classes:
A47C17/13; H02P7/29
Foreign References:
| CN217723084U | 2022-11-04 | |||
| CN208491395U | 2019-02-15 | |||
| CN108625993A | 2018-10-09 | |||
| CN205945570U | 2017-02-08 | |||
| CN206585464U | 2017-10-24 | |||
| CN111799938A | 2020-10-20 | |||
| US4472846A | 1984-09-25 |
Attorney, Agent or Firm:
HANGZHOU LIUFANGYUYI PATENT AGENCY (CN)
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