A frame structure of baby trailer includes a bottom frame including a front frame bar, a rear frame bar, and opposing left and right frame bars respectively pivotally connected between the front and rear frame bars, two -shaped upright support frame bars respectively connected with respective front and rear ends thereof to the bottom frame, and a top transverse frame bar connected between the two upright support frame bars at a top side. The front or rear frame bar of the bottom frame is retractable and can be set between an extended position and a received position and locked in the extended position by a locking device so that the bottom frame can be conveniently and rapidly collapsed through a unilateral operation to reduce the dimension.

A method of assembling a drilling rig may include aligning a trailer with a drilling rig support structure, the trailer carrying a mast and the drilling rig support structure including a step-down substructure. A first end of the mast may be positioned over the drilling rig support structure and arms may be extended from the mast to the drilling rig support structure so that the drilling rig support structure supports the first end of the mast. The mast may translate along a length of the drilling rig support structure. The mast may be coupled to the drilling rig support structure.

An axle alignment system for an axle assembly. The axle alignment system may include a bracket assembly and an alignment plate. The alignment plate may be moveably disposed on the bracket assembly with one or more fasteners that may move along one or more slots that may be provided with the bracket assembly and/or the alignment plate.

The present invention discloses a turbine fracturing equipment, including a transporter, a turbine engine, a reduction gearbox, a transmission mechanism and a plunger pump, wherein an output end of the turbine engine is connected to one end of the reduction gearbox, the other end of the reduction gearbox is connected to the plunger pump through a transmission mechanism; the transporter is used to support the turbine engine, the reduction gearbox, the transmission mechanism and the plunger pump; the transporter includes a chassis provided with a transport section, a bearing section and a lapping section which are connected in sequence; while the turbine fracturing equipment is in a working state, the bearing section can contact with the ground, while the turbine fracturing equipment is in a transport state, the bearing section does not contact with the ground. Beneficial effects: the equipment adopts a linear connection and a special chassis design, so that the center of gravity is double lowered to guarantee its stability and safety, the structure is simpler, the investment and operation costs are decreased, the risk of total breakdown of the fracturing site is reduced, and the equipment has a good transmission performance and is suitable for continuous operation conditions with long time and heavy load.

The disclosure presented herein relates to a trailer of a collapsible configuration. The trailer comprises a connector connectable to a vehicle. The trailer further comprises a frame structure coupled to the connector. The frame structure comprises a telescopic spine member, a pair of front members pivotally connected to the telescopic spine member and extending from the the telescopic spine member, a pair of lateral members pivotally connected to the pair of front members, a plurality of support members pivotally connected to and extending from the telescopic spine member and connected to the pair of lateral members. The pair of front members, the pair of lateral members, and the plurality of support members are pivotally coupled to the telescopic spine member, thereby providing a collapsible configuration to the trailer. This allows the maneuvering of the trailer in confined spaces.

A cargo body panel includes a composite construction including an interior skin, an exterior skin, and a core positioned between the interior and exterior skins. The panel has parallel first and second edges spaced in a first direction. A pocket is formed by the interior skin at a location spaced away from the first and second edges, the pocket extending parallel to the first and second edges to define a length. The pocket is wide enough to accommodate a logistics profile insert having a width that exceeds a depth of the pocket, the depth measured into the panel, perpendicular to both the first direction and the length.

A cargo body panel includes a composite construction including an interior skin, an exterior skin, and a core positioned between the interior and exterior skins. The panel has parallel first and second edges spaced in a first direction. A pocket is formed by the interior skin at a location spaced away from the first and second edges, the pocket extending parallel to the first and second edges to define a length. The pocket is wide enough to accommodate a logistics profile insert having a width that exceeds a depth of the pocket, the depth measured into the panel, perpendicular to both the first direction and the length.

A cargo vehicle is disclosed having a composite floor assembly with at least one conduit extending along a length of the composite floor assembly. The at least one conduit may include a first internal cavity and a second internal cavity. The first internal cavity may be configured to route at least one vehicle component. The second internal cavity may be configured to receive at least one vehicle component or a plurality of mechanical fasteners. The mechanical fasteners may be used to couple a base rail to the composite floor assembly.

An impact attenuator including an impact head, coupled to a first end of an energy absorption body, which energy absorption body is arranged for fixation to an external structure at a second end opposing the first end of the energy absorption body, configured to at least partly absorb or dissipate energy from a collision of an object with the impact head, and including a first part and a second part extending substantially lengthwise behind each other, wherein the first and second part are mutually moveable and including a first and a second cutting edge, wherein, the first cutting edge is arranged for splitting the first part of the energy absorption body upon impact of an object colliding with the impact head, and the second cutting edge is arranged for consecutively splitting the second part of the energy absorption body upon impact of an object colliding with the impact head.

An interchangeable platform that encompasses side beams at the sides and at least one support structure, with what the side beams are fastened to each other. Side beams are into sideways direction, perpendicular to the longitudinal direction, at least partially open and closed from up and down and they have an upside-down G-profile. An interchangeable platform encompasses at least one longitudinal guide. The interchangeable platform can be guided by the guide to the transport device, can be locked by side beams to the transport device and load fastening equipment can be fastened to side beams. Additionally a transport device that encompasses side guides.