摘要：【中文】本发明公开了一种主阀翻转装置，包括机架，所述机架的顶部可俯仰翻转地设置有基板，所述基板上可定轴转动地设置有顶部与主阀适配的托板，且所述托板的转动轴线沿竖直方向延伸，所述托板的顶部沿竖直方向可拆装地自上而下贯穿有若干与主阀贯穿适配并与托板螺纹紧固的定位螺栓，所述托板上还设置有与主阀对位卡接以使主阀底面与托板顶面紧密贴合的锁紧装置。该主阀翻转装置的操作效率较高，操作过程简便易行，能够大幅降低工人劳动强度，并使主阀各相关部件的组装结构更加精准可靠。 【EN】The invention discloses a main valve turnover device which comprises a rack, wherein a base plate is arranged at the top of the rack in a pitching and overturning manner, a supporting plate with the top matched with a main valve is arranged on the base plate in a fixed-shaft rotating manner, the rotating axis of the supporting plate extends along the vertical direction, a plurality of positioning bolts which are matched with the main valve in a penetrating manner and fastened with the supporting plate in a threaded manner are detachably penetrated through the top of the supporting plate from top to bottom along the vertical direction, and a locking device which is in contraposition clamping connection with the main valve to enable the bottom surface of the main valve to be tightly attached to the top surface of the supporting plate. The main valve turnover device is high in operation efficiency, simple and easy to operate in operation process, capable of greatly reducing labor intensity of workers and enabling the assembly structure of each relevant part of the main valve to be more accurate and reliable.

摘要：【中文】本申请公开了一种折叠平台及接触网检修作业车，其中，折叠平台包括：第一支腿；第二支腿，与第一支腿转动连接，第一支腿相对第二支腿包含撑开位置和收起位置，在撑开位置，第一支腿和第二支腿呈三角支撑状态，在收起位置，第一支腿和第二支腿呈平行叠置状态；折叠踏板机构，与第一支腿连接并形成平行四边形连杆机构，在撑开位置，折叠踏板机构的多层踏板平行于由第一支腿和第二支腿的底端形成的支撑面，且折叠踏板机构定位固定于第二支腿。将第一支腿和第二支腿撑开，折叠踏板机构展开，使折叠踏板机构的多层踏板平行于第一支腿和第二支腿的底端形成的支撑面，并将展开的折叠踏板机构定位固定于第二支腿，方便工作人员登上折叠平台进行作业。 【EN】The application discloses folding platform and contact net overhaul work car, wherein, folding platform includes: a first leg; the second supporting leg is rotatably connected with the first supporting leg, the first supporting leg comprises a spreading position and a retracting position relative to the second supporting leg, the first supporting leg and the second supporting leg are in a triangular support state at the spreading position, and the first supporting leg and the second supporting leg are in a parallel overlapping state at the retracting position; the foldable pedal mechanism is connected with the first supporting leg and forms a parallelogram link mechanism, the multilayer pedals of the foldable pedal mechanism are parallel to a supporting surface formed by the bottom ends of the first supporting leg and the second supporting leg at the opening position, and the foldable pedal mechanism is fixed on the second supporting leg in a positioning mode. The first supporting leg and the second supporting leg are unfolded, the folding pedal mechanism is unfolded, the multilayer pedals of the folding pedal mechanism are parallel to the supporting surface formed by the bottom ends of the first supporting leg and the second supporting leg, the unfolded folding pedal mechanism is fixed on the second supporting leg in a positioning mode, and a worker can conveniently climb on the folding platform to operate.

摘要：【中文】本发明提供一种施工车辆底盘，包括：行走机构、底架、回转支承和上车体，还包括：支撑于底架和回转支承之间的增高机构。在本方案中，通过在底架和回转支承之间设置增高机构，以抬高了上车体的高度，进而使得上车体高出于水面，从而使得施工车辆能够适应在较深水区施工，以此增强了施工车辆的作业能力。本发明还提供了一种应用上述施工车辆底盘的施工车辆，特别是一种旋挖钻机。 【EN】The present invention provides a construction vehicle chassis, comprising: running gear, chassis, slewing bearing and the body of going up the car still include: and a heightening mechanism supported between the underframe and the slewing bearing. In this scheme, through set up between chassis and slewing bearing and increase the mechanism to raise the height of the upper carriage body, and then make the upper carriage body be higher than out of the surface of water, thereby make construction vehicle can adapt to the construction in deep water district, with this operating capacity that has strengthened construction vehicle. The invention also provides a construction vehicle applying the construction vehicle chassis, in particular a rotary drilling rig.

摘要：【中文】本申请公开了一种辅助平台及接触网检修作业车，其中，辅助平台包括：轨道，用于沿检修作业平台的纵向布置于所述检修作业平台的顶面；升降台，与所述轨道移动配合，所述升降台能够进行升降。在进行检修作业时，工作人员直接将检修作业平台上的升降台在轨道上移动到检修位置后，站在升降台上进行检修，相比于现有的将接触网检修作业车内的八字爬梯搬到检修作业平台上，工作人员站在八字爬梯上进行检修操作，使用完再搬回接触网检修作业车内，本申请中的辅助平台方便了接触网的检修作业。 【EN】The application discloses auxiliary platform and contact net overhaul work car, wherein, auxiliary platform includes: the rail is used for being arranged on the top surface of the overhaul operating platform along the longitudinal direction of the overhaul operating platform; the lifting platform is movably matched with the rail and can lift. When carrying out the maintenance operation, the staff directly moves the elevating platform on the maintenance work platform to the maintenance position after on the track, stands and overhauls on the elevating platform, compares in current with the contact net overhaul the splayed cat ladder in the operation car move to the maintenance work platform on, and the staff stands and overhauls the operation on the splayed cat ladder, and in the contact net overhaul the operation car again, the auxiliary platform in this application has made things convenient for the maintenance operation of contact net.