A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Pre-tightening structure and manhole access door
The invention discloses a pre-tightening structure and a manhole access door. The pre-tightening structure comprises a locking piece, an opening and closing piece and an elastic piece. The opening and closing piece has a locking state matched with the locking piece and an opening state separated from the locking piece; the opening and closing piece can elastically act on the locking piece through the elastic piece; when the opening and closing piece is in an open state, the elastic piece is in a natural state; when the opening and closing piece is in the locking state, the opening and closing piece drives the elastic piece to deform, and the opening and closing piece is locked to the locking piece through restoring force generated by the elastic piece. The opening and closing piece is matched with the elastic piece, self-locking is achieved in the locking state, external force larger than restoring force needs to be applied to the opening piece in the unlocking process, and the pre-tightening structure is high in locking stability, simple in structure and good in locking effect. The manhole access door comprises a bottom plate, an access door body and a pre-tightening structure. The access door can be locked on the bottom plate through the pre-tightening structure so as to cover the manhole, the attaching stability of the access door and the bridge bottom plate can be conveniently guaranteed, and relative movement of the access door and the bridge bottom plate is avoided.
本发明公开一种预紧结构及人孔检修门，预紧结构包括锁定件、开合件和弹性件。开合件具有与锁定件配合的锁定状态和脱离锁定件的开启状态；开合件能够通过弹性件弹性作用于锁定件；当开合件处于开启状态时，弹性件处于自然状态；开合件处于锁定状态时，开合件通过驱使弹性件变形且通过弹性件产生的恢复力以锁紧于锁定件。开合件与弹性件配合，在锁紧状态时实现自锁，解锁时需要给予开启件一大于恢复力的外力，预紧结构锁紧稳定性强，结构简单，锁紧效果好。人孔检修门包括底板、检修门体和预紧结构。通过预紧结构使得检修门能够锁紧于底板上，以盖合人孔，便于保证检修门与桥梁底板的贴合稳定性，避免检修门与桥梁底板发生相对运动。
Pre-tightening structure and manhole access door
The invention discloses a pre-tightening structure and a manhole access door. The pre-tightening structure comprises a locking piece, an opening and closing piece and an elastic piece. The opening and closing piece has a locking state matched with the locking piece and an opening state separated from the locking piece; the opening and closing piece can elastically act on the locking piece through the elastic piece; when the opening and closing piece is in an open state, the elastic piece is in a natural state; when the opening and closing piece is in the locking state, the opening and closing piece drives the elastic piece to deform, and the opening and closing piece is locked to the locking piece through restoring force generated by the elastic piece. The opening and closing piece is matched with the elastic piece, self-locking is achieved in the locking state, external force larger than restoring force needs to be applied to the opening piece in the unlocking process, and the pre-tightening structure is high in locking stability, simple in structure and good in locking effect. The manhole access door comprises a bottom plate, an access door body and a pre-tightening structure. The access door can be locked on the bottom plate through the pre-tightening structure so as to cover the manhole, the attaching stability of the access door and the bridge bottom plate can be conveniently guaranteed, and relative movement of the access door and the bridge bottom plate is avoided.
本发明公开一种预紧结构及人孔检修门，预紧结构包括锁定件、开合件和弹性件。开合件具有与锁定件配合的锁定状态和脱离锁定件的开启状态；开合件能够通过弹性件弹性作用于锁定件；当开合件处于开启状态时，弹性件处于自然状态；开合件处于锁定状态时，开合件通过驱使弹性件变形且通过弹性件产生的恢复力以锁紧于锁定件。开合件与弹性件配合，在锁紧状态时实现自锁，解锁时需要给予开启件一大于恢复力的外力，预紧结构锁紧稳定性强，结构简单，锁紧效果好。人孔检修门包括底板、检修门体和预紧结构。通过预紧结构使得检修门能够锁紧于底板上，以盖合人孔，便于保证检修门与桥梁底板的贴合稳定性，避免检修门与桥梁底板发生相对运动。
Pre-tightening structure and manhole access door
预紧结构及人孔检修门
WANG LEI (author) / ZHOU GUANDONG (author) / DUAN YINLONG (author) / XU DONGJIN (author) / LIU QIN (author) / ZHU ZHIXIN (author) / LI JUNNUO (author) / WANG ZIHAO (author) / TAN BUHAO (author) / GUO SEN (author)
2021-11-05
Patent
Electronic Resource
Chinese
IPC:
E06B
Feste oder bewegliche Abschlüsse für Öffnungen in Bauwerken, Fahrzeugen, Zäunen oder ähnlichen Einfriedungen allgemein, z.B. Türen, Fenster, Läden, Tore
,
FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES, OR LIKE ENCLOSURES, IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
/
E01D
BRIDGES
,
Brücken
/
E05C
Riegel oder Feststellvorrichtungen für Flügel, insbesondere für Türen oder Fenster
,
BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
/
E05F
DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION
,
Vorrichtungen zum Bewegen der Flügel in die Offen- oder Schließstellung
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