42results about How to "Reduce transportation pressure" patented technology

The invention provides a connecting structure of a preserved wall face of an assembled building window and the window of the wall face. The connecting structure comprises a wall, four telescopic mechanisms, long rods, short rods and limiting blocks. Every two telescopic mechanisms are oppositely placed, and the two long rods are movably installed in the wall separately and fixedly connected with two telescopic mechanisms which are oppositely placed respectively; the two limiting blocks are fixedly installed at the two sides of the long rods respectively, the two short rods are movably installed in the wall separately and fixedly connected with the other two telescopic mechanisms which are oppositely placed respectively, and penetrate through the two long rods respectively. Through the telescopic mechanisms, the distance between the long rods and the short rods is adjusted, and then windows of different sizes can be installed; moreover, the telescopic mechanisms can drive the long rodsand the short rods to deviate in a certain direction, then windows can be installed at all portions of the wall face, there is no need to specify a fixed installing area before installation, and the installation flexibility is improved.

The invention discloses a four-joint wagon. The four-joint wagon comprises a first wagon, a second wagon, a third wagon and a fourth wagon which are sequentially connected in series. Each of the firstwagon, the second wagon, the third wagon and the fourth wagon is supported by disc cores of two two-axis bogies, wherein lower core discs of the two two-axis bogies are matched with upper core discsof the wagons. Bodies of the first wagon, the second wagon, the third wagon and the fourth wagon only can rotate and cannot move transversely and longitudinally. The second wagon and the fourth wagonare main wagons, the first wagon and the third wagon are auxiliary wagons, and the two-axis bogies, close to the main wagon ends, of the auxiliary wagons can move transversely relative to the wagon bodies. The first wagon, the second wagon, the third wagon and the fourth wagon are hinged through hinges. The invention further relates to a connecting method of the four-joint wagon, the problems thatthe bogies are placed between the wagons in a joint wagon in the prior art, the finished wagon axle number is reduced, the baggage is increased, the wagon load is also limited, and the current transport capacity requirement is hard to met are solved.

The invention discloses a foldable air-conditioning inner unit and an air-conditioning system, which solves the technical problem that the existing air-conditioning inner unit occupies indoor space. The foldable air conditioner also includes a casing and an evaporator, the casing includes a first casing part and a second casing part; the evaporator includes a first evaporator part and a second evaporator part, and the first evaporator part and the second evaporator part pass through The hose body passes through; the second shell part can be stacked with the first shell part, and the first evaporator part can be stacked with the second evaporator part. In the season when the air conditioner is not in use, the first shell part and the second shell part can be superimposed, and the first evaporator part and the second evaporator part can be superimposed based on manual operation or automatic control, so as to realize the folding of the air conditioner inner unit , reducing the occupied space.

The invention relates to an anode flow field plate of a methanol fuel cell. A flow channel of the anode flow field plate comprises a first level flow channel, second level flow channels and third level flow channels, and the ratio of the diameters of each second level flow channel to the first level flow channel and the ratio of the diameters of each third level flow channel to each second level flow channel are 0.7-0.8; the first level flow channel comprises an outer flow channel and a middle flow channel, the middle flow channel is arranged along the central line of the outer flow channel, a feed opening is connected with the front end of the middle flow channel, and a discharge opening is connected with the tail end of the outer flow channel; the plurality of second level flow channels are symmetrically arranged on both sides of the middle flow channel and are connected with the outer flow channel and the middle flow channel; one end of the third level flow channel close to the discharge opening is connected with the second level flow channels, the other end of the third level flow channel is connected with the outer flow channel, and the rest third level flow channels are connected with adjacent second level flow channels on the same side. The third level flow channels are of leave fractal structures, thereby abiding by the existence law of vein structures in the nature, helping to make full use of the space of the flow field plate and facilitating to improve the fuel utilization rate, the elasticity is high, the structural strength is high and the occupied volume is small.