Patent ID: 11952065
Assignee: YOTTA INNOVATION CO., LTD.
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 6:
7. The vehicle restriction mechanism of claim 5, wherein the first guiding portion includes an arcuate groove extending arcuately, the arcuate groove penetrates through the barrel and includes a first end portion and a second end portion, and the first end portion is higher than the second end portion in the axial direction relative to the outermost bottom surface; an arc mouth of the arcuate groove faces toward a side of the axial direction remote from the outermost bottom surface; the first end portion and the second end portion have respective abutting surfaces, and each of the respective abutting surfaces is abuttable against the second guiding portion in an extending direction of the arcuate groove; the second guiding portion includes at least one guiding projection being movable within the arcuate groove, the at least one guiding projection is detachably and protrudingly disposed on an outer circumferential wall of the stem member; when the at least one guiding projection is located at the first end portion, the stem member is in the restricted position; when the at least one guiding projection is located at the second end portion, the stem member is in the release position; the at least one engaging projection is a pin penetrating through the sleeve member, the pin is connected with the operating member and axially unmovable relative to the operating member; the at least one engaging recession is a restriction hole; when the stem member is in the restricted position, the pin is engagingly disposed within the restriction hole; the base further includes a seat portion configured to be sleevingly disposed on the supporting arm, the sleeve portion includes a barrel and two flanges radially extending integrally from the barrel and connected with the seat portion, and the stem member is rotatably disposed within the barrel; an outer contour of each of the two flanges is trapezoidal and gradually expands toward the seat portion; the seat portion and the sleeve portion are integrally formed as one piece; the sleeve portion has a screw hole radially penetrating therethrough and communicated with an interior of the barrel, the sleeve member includes a threaded section screwed to the screw hole and a polygonal section connected with the threaded section, the operating member is non-rotatably sleeved with the polygonal section and is axially movable relative to the polygonal section; the screw hole is lower than the first end portion in the axial direction; the elastic member is elastically abutted against and between the first engaging portion and the sleeve member; and the arcuate groove is dislocated with the operation assembly as viewed in the axial direction.