Title:
BRAKE DEVICE, WHEEL ASSEMBLY AND WALKING AID
Document Type and Number:
WIPO Patent Application WO/2023/015732
Kind Code:
A1
Abstract:
A brake device, a wheel assembly and a walking aid. The brake device (10) comprises a shaft (100), a housing (200), a magnetic induction member (310) and a magnet assembly (320), wherein the housing (200) is sleeved around the shaft (100) and is coaxially arranged with the shaft (100), and the housing (200) can rotate relative to the shaft (100); a coil (311) is wound around the magnetic induction member (310), the magnet assembly (320) comprises a plurality of magnets arranged at intervals in a circumferential direction of the shaft (100), one of the magnetic induction member (310) and the magnet assembly (320) is connected to the shaft (100), and the other one of the magnetic induction member and the magnet assembly is connected to the housing (200), such that when the housing (200) rotates relative to the shaft (100), the coil (311) can cut the magnetic field created by the magnet assembly (320), thereby generating a resistance opposite the direction in which the housing (200) or the shaft (100) rotates, and thus braking can be applied to a wheel (20) integrated with or connected to the brake device (10); and since the braking force thereof is related to the rotation of the housing (200) or the shaft (100), rather than friction braking, an emergency stop effect cannot be provided, the safety is higher, abrasion can be reduced, the service life of the braking device (10) is prolonged, and the brake device (10) has a simple structure and is easy to prepare.
Inventors:
LI YONG (CN)
GONG MAO (CN)
GONG MAO (CN)
Application Number:
PCT/CN2021/127109
Publication Date:
February 16, 2023
Filing Date:
October 28, 2021
Export Citation:
Assignee:
ZHEJIANG YIHENGYUE MEDICAL TECH CO LTD (CN)
International Classes:
A61H3/04
Foreign References:
| CN113520809A | 2021-10-22 | |||
| JP2018007784A | 2018-01-18 | |||
| CN112688483A | 2021-04-20 | |||
| KR101171638B1 | 2012-08-07 | |||
| US20200338383A1 | 2020-10-29 | |||
| US20160218585A1 | 2016-07-28 |
Attorney, Agent or Firm:
SHENZHEN DEBEN INTELLECTUAL PROPERTY AGENCY (GENERAL PARTNERSHIP) (CN)
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