The invention provides an access door opening and closing mechanism and a bullet train head cover. The access door opening and closing mechanism comprises a hinge seat, a hinge and an elastic component. The hinge comprises a first edge, a second edge, a third edge and a fourth edge which are formed by bending in sequence, the first edge, the second edge and the third edge form an n shape, and thesecond edge, the third edge and the fourth edge form a Z shape. The first edge is hinged with the hinge seat; one end of the elastic component is hinged to the hinge seat, and the other end of the elastic component is hinged to the first edge; and the elastic component can store elastic potential energy and release the elastic potential energy to the hinge so that the hinge rotates along the hingeseat. Compared with the prior art, the access door opening and closing mechanism provided by the invention has advantages that the access door can be prevented from being opened at a closing positionand closed at an opening position so that the opening position and the closing position of the access door are stable, and maintenance operation is not influenced.
本发明提供一种检修门开闭机构及动车头罩。所述检修门开闭机构包括铰链座、铰链活页和弹力构件,所述铰链活页包括依次弯折形成的第一边、第二边、第三边和第四边,所述第一边、第二边和第三边形成n形,所述第二边、第三边和第四边形成Z字型;所述第一边与所述铰链座铰接;所述弹力构件的一端铰接于所述铰链座,所述弹力构件的另一端铰接于所述第一边;所述弹力构件能储存弹性势能并将其释放给所述铰链活页,使所述铰链活页沿所述铰链座转动。与相关技术相比,本发明所提供的检修门开闭机构能够实现检修门在关闭位置的阻开作用,在开启位置的阻关作用,使检修门开启位置和关闭位置的稳定且不影响检修操作。
Access door opening and closing mechanism and bullet train head cover
一种检修门开闭机构及动车头罩
2020-09-15
Patent
Electronic Resource
Chinese
IPC: | B61C Lokomotiven , LOCOMOTIVES |
European Patent Office | 2024
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