31results about How to "Slow rebound" patented technology

The invention belongs to the technical field of computer transportation, and particularly relates to an anti-collision computer transportation device for mountainous areas. The anti-collision computertransportation device comprises an outer box body and an inner box body, wherein a top cover is hinged to the position of a top opening of the outer box body; a second supporting block is fixedly connected to the central position of the bottom of the inner side of the outer box body; compression air bags are fixedly connected to the top of the second supporting block; and the inner box body is arranged on the inner side of the outer box body. According to the anti-collision computer transportation device, the plurality of rectangular air bags are arranged between the outer box body and the inner box body, and a rotating shaft is utilized to rotate, so that the sliding distances of a plurality of sliding blocks on the inner side of a cavity are different, the rectangular air bags positioned above are inflated to the maximum extent so as to protect the top with the maximum offset when the inner box body is inclined against collision, and the probability of collision between the inner box body and the outer box body is reduced; and moreover, a hollow ball, a hollow spring and the compression air bags between a first supporting block and the second supporting block can buffer the vertical shaking of the inner box body.

The small unmanned aerial vehicle landing gear buffer relates to the field of aviation aircraft, and solves the problems that the existing flat spring type buffer has low buffering efficiency, is easy to rebound, and cannot meet the high reliability requirements of the unmanned aerial vehicle. Including the outer cylinder, the first spring on the outer cylinder, the inner cylinder with a damping hole, the air bag between the outer cylinder and the inner cylinder, the upper joint, the lower joint, the piston rod extending into the inner cylinder, and the piston rod which is set on the piston rod in turn. Piston, damping plate, pressure limiting valve, one-way valve, guide sleeve and locking cover which are set on the piston rod and located inside the outer cylinder in turn; between the inner cylinder and the outer cylinder is the inner and outer cylinder ring-shaped oil storage chamber, and the damping plate along the piston The rod moves axially, and the pressure limiting valve limits the maximum damping force in the compression stroke to not exceed the preset value. After tightening the locking cap, the guide sleeve, one-way valve, and inner cylinder are axially compressed to the lower joint, and the one-way valve controls the inner and outer Whether the annular oil storage chamber of the barrel communicates with the right cavity of the inner barrel or not, the two ends of the first spring bear against the lower and upper joints respectively. The invention has high buffering efficiency, is not easy to rebound, has stable performance and high reliability.

The invention discloses a slow-rebounding hydraulic limit buffer device for an elevator. The slow-rebounding hydraulic limit buffer device comprises bases and a cylinder body, wherein the number of the bases is two, and a gap between the bases forms a guide groove; a lower cover is arranged below the bases; the cylinder body is fixedly arranged at the upper end of the lower cover; the upper end of the cylinder body is open, and an upper cover is detachably arranged at the upper end of the cylinder body; a horizontally-arranged colliding seat is arranged above the cylinder body; an outer buffer pad is arranged at the upper end of the colliding seat; a piston rod is arranged at the lower end of the colliding seat, sequentially penetrates through the upper cover and the lower cover, extends to the inner part of the guide groove, and is connected with a stop block in the guide groove; an upper buffer spring is arranged between the colliding seat and the upper cover. The slow-rebounding hydraulic limit buffer device disclosed by the invention is reasonable in structural design; by triple effects of the upper buffer spring, a lower buffer spring and hydraulic oil in the cylinder body, limit buffer within reasonable time and motion distance is realized; meanwhile, the rebounding can be effectively slowed down during rebounding, so that possible secondary injury to passengers due to quick release of elastic potential energy is avoided.