3results about How to "Low layout space requirement" patented technology

The application provides a novel stamping and welding rear subframe, which comprises a subframe main body formed by a front cross beam (1), a rear cross beam (2), a left longitudinal beam (3) and a right longitudinal beam (4), the subframe is provided with a control arm support and a spring arm support, the spring arm support comprises a left spring arm support (5) and a right spring arm support (6), the left spring arm support (5) and the right spring arm support are arranged on the inner side of the space formed by the subframe; the subframe further comprises a V-shaped cross beam (7), the two ends of the V-shaped cross beam (7) are connected with the left spring arm support (5) and the right spring arm support (6) respectively, the middle part of the V-shaped cross beam (7) is connected with the rear cross beam (2), and the V-shaped cross beam (7) forms a V-shaped opening which faces the front cross beam (1). The size precision of the overall profile of the subframe is improved, the arrangement is compact, and the requirement for the arrangement space is reduced. The durability and the rigidity are improved.

The utility model discloses a kind of vehicles, it is related to vehicle technical field, wherein, vehicle includes vehicle body, tail door and open-close structure, the vehicle body has tail side opening;The tail door has opening state and closed state, when the tail door in the opening state, the tail door is located above the ceiling of the vehicle body, the tail door in the closed state, the tail door closes the tail side opening;The open-close structure includes connecting rod and hinge rotating arm, one end of the connecting rod is rotatably connected with the vehicle body, the other end is rotatably connected with the bottom side of tail door, one end of the hinge rotating arm is slidably arranged on the tail door, and the other end is rotatably connected with the top of the vehicle body.The technical scheme provided by the utility model can reduce the space occupied by the tail door during opening and after opening.

The application discloses a hub assembly, a propeller and an aircraft, and relates to the technical field of aircrafts, wherein the hub assembly comprises a mounting seat, a blade clamp and a flap hinge; the mounting seat is connected to the output end of a power device; the blade clamp is used for mounting the blades of the propeller; the flap hinge comprises an elastic bearing and a load transmission structure; the elastic bearing comprises a first outer ring, a first inner ring and a bearing elastic body; the bearing elastic body is arranged between the first outer ring and the first inner ring; one of the first outer ring and the first inner ring is fixedly connected to the mounting seat, and the other is fixedly connected to the blade clamp, so as to cause the bearing elastic body to be twisted and deformed under the action of the axial torsional load of the blade clamp; the load transmission structure is connected between the blade clamp and the mounting seat, and can transmit at least one of the axial load, the radial load and the radial torsional load on the blade clamp to the mounting seat. The technical scheme provided by the application can reduce the rigidity design requirement of the elastic bearing, thereby reducing the arrangement space requirement and the design difficulty of the elastic bearing.