The present invention proposes a screw jack with reinforced structural strength. According to the present invention, the screw jack comprises: a first support portion and a second support portion which have contact plates for contact with external structures, and have bodies respectively extending toward each other from the contact plate and respectively having screw holes open toward each other; and screw adjusting portions having, on upper and lower portions, upper and lower screw portions which are screwed to the screw holes of the first and second support portions, respectively, wherein a pair of support plates (18a, 18b and 38a, 38b) having fastening holes (18h, 38h) at corresponding positions with a predetermined gap (18c, 38c) therebetween are formed in a portion connecting the contact plate of the first and second support portions to the body, and using the same, the strength can be reinforced through connection with the external structure or an adjacent screw jack. In addition, it is preferable that the pair of support plates are formed at equal intervals.

    본 발명은 구조적 강도가 보강되는 스크류잭을 제안한다. 본 발명의 스크류잭은, 외부 구조물에 접촉하기 위한 접촉 플레이트와, 상기 접촉 플레이트에서 서로를 향하여 각각 연장되고 서로를 향하여 열린 나사공이 구비된 몸통을 각각 구비하는 제1지지부 및 제2지지부와; 상기 제1지지부 및 제2지지부의 나사공에 각각 나사 결합되는 상부나사부 및 하부나사부를 상부 및 하부에 구비하는 나사조절부를 구비한다. 여기서 제1지지부 및 제2지지부의 접촉 플레이트와 몸통을 연결하는 부분에는, 그 사이에서 일정한 간격(18c,38c)을 가지고 대응하는 위치에 체결공(18h,38h)을 가지는 한 쌍의 지지판(18a,18b 및 38a,38b)이 성형되어 있고, 이를 이용하여 외부 구조물 또는 인접 스크류잭과 연결하여 강도를 보강할 수 있다. 그리고 한 쌍의 지지판은 등간격으로 다수 성형되는 것이 바람직하다.


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    Title :

    Screw Jack for engineering works


    Additional title:

    토목공사용 스크류잭


    Contributors:

    Publication date :

    2020-05-08


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    B66F HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD , Hub-, Verhol- oder Schubvorrichtungen, soweit nicht anderweitig vorgesehen, z.B. Vorrichtungen mit unmittelbarer Krafteinwirkung auf die Last / F16B DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES , Vorrichtungen zum Befestigen oder Sichern von Konstruktionselementen oder Maschinenteilen, z.B. Nägel, Bolzen, Schrauben, Sprengringe, Klemmen, Klammern oder Keile



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