Patent ID: 11970377
Assignee: T-MAX (HANGZHOU) TECHNOLOGY, CO., LTD.
Field: Handling (Mechanical engineering)
Classification: CPC B | IPC B

Claim 13:
14. A brake device comprising:
a brake sleeve, a torsion spring, a sealing member and a braking assembly, the torsion spring being fitted over the braking assembly, the brake sleeve being fitted over the torsion spring, the braking assembly being configured to drive the torsion spring to move between an expanded position and a retracted position, so as to lock and release the brake sleeve, and the sealing member being arranged between the brake sleeve and the braking assembly, so that a sealing cavity is defined between the brake sleeve and the braking assembly,
wherein the sealing member comprises a first sealing sleeve and a second sealing sleeve, the first sealing sleeve and the second sealing sleeve are fitted over the braking assembly, and an outer peripheral wall of the first sealing sleeve and an outer peripheral wall of the second sealing sleeve abut with an inner wall of the brake sleeve,
wherein the braking assembly comprises a drive motor, a coupling, a connecting rod, a front pawl and a rear pawl, the drive motor is connected to the connecting rod through the coupling, the front pawl and the rear pawl are coaxially arranged on the connecting rod, the torsion spring is arranged around the front pawl and the rear pawl, the first sealing sleeve is arranged between the rear pawl and the brake sleeve, the second sealing sleeve is arranged between the coupling and the brake sleeve, and the drive motor is configured to drive the front pawl and the rear pawl to rotate through the connecting rod, so that the torsion spring moves between the expanded position and the retracted position, and
wherein the braking assembly further comprises a shift fork fitted over the connecting rod, a profiled groove is arranged in one end of the coupling, the shift fork is mounted in the profiled groove, another end of the coupling is connected to the drive motor, and the drive motor is configured to drive the coupling to rotate, so that the shift fork drives the connecting rod to rotate.