Hydraulic cylinder with built-in locking device

The present invention relates to a hydraulic cylinder with a built-in locking apparatus, which comprises: a cylinder tube extended straight in a longitudinal direction, having a certain diameter; an end cap engaged with one end unit of the cylinder tube, having a locking unit providing support force...

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Bibliographische Detailangaben
1. Verfasser: LEE YEONG DO
Format: Patent
Sprache:eng ; kor
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Beschreibung
Zusammenfassung:The present invention relates to a hydraulic cylinder with a built-in locking apparatus, which comprises: a cylinder tube extended straight in a longitudinal direction, having a certain diameter; an end cap engaged with one end unit of the cylinder tube, having a locking unit providing support force; a reciprocating rod slidably inserted into the cylinder tube and extended toward an outer side on the other end unit of the cylinder tube; and a locking end placed on an end unit of the reciprocating rod to meet the locking unit and be fixed on the locking unit with the reciprocating rod completely inserted into the cylinder tube. As such, according to the present invention, the hydraulic cylinder with the built-in locking apparatus is able to have the piston rod completely inserted into the cylinder tube is supported by the built-in locking apparatus, to prevent the piston rod from abnormally escaping by a load applied from outside, and to have a great motion reliability. In addition, the locking apparatus supporting the piston rod is placed in the cylinder tube, so the outer structure is not complex and can be simply maintained. 본 발명은 록킹장치가 내장된 유압실린더에 관한 것이다. 이는, 일정직경을 가지며 길이방향으로 직선 연장된 실린더튜브와; 상기 실린더튜브의 일단부에 결합하며, 지지력을 제공하는 록킹부를 구비한 엔드캡과; 상기 실린더튜브내에 슬라이딩 이동 가능하도록 삽입되고, 실린더튜브의 타단부 외부로 연장된 왕복로드와; 상기 왕복로드의 단부에 구비되며 왕복로드가 실린더튜브에 완전히 삽입된 상태에서 록킹부를 만나 록킹부에 고정 지지되는 록킹엔드를 포함한다. 상기와 같이 이루어지는 본 발명의 록킹장치가 내장된 유압실린더는, 실린더튜브의 내부로 완전히 삽입된 피스톤로드가, 내장된 록킹장치에 의해 지지되므로, 외부로부터 가해진 하중에 의해 비정상적으로 빠지지 않아 그만큼 동작 신뢰성이 좋다. 또한, 피스톤로드를 지지하는 록킹장치가 실린더튜브의 내부에 위치하므로, 외부 구조가 복잡하지 않고 정비가 간결하다.