8 results about "Lower half" patented technology

The utility model relates to a kind of replaceable table surface air cylinder, including cylinder, slider sliding in the cylinder, limiting block of limiting the position of slider, rod body being set on the slider, detachable connection on the table surface of the cylinder;The cylinder is opened with sliding slot;The limiting block is set at the upper half of the sliding slot;The slider slides in the sliding slot;The rod body is set in the limiting block;The cylinder is opened with first hole and second hole;The first hole is located in the upper half of the sliding slot, and the second hole is located in the lower half of the sliding slot;The first hole and the second hole are communicated with gas source;The table surface is fixed on the cylinder by bolt.Solved if new operation requirement is satisfied, often needs to replace entire air cylinder or to carry out complex reconstruction to table surface.

The invention discloses a multi-curvature thin-wall composite material pipe fitting forming tool and method, and belongs to the technical field of composite material forming. The forming tool comprises an upper half die, a lower half die, a first check block and a second check block, and the first check block and the second check block are detachably connected with the lower half die through guide columns; the inner sides of the first check block and the second check block extend into a cavity of the lower half die, the side walls of the inner sides of the first check block and the second check block are stepped surfaces or inclined surfaces or curved surfaces, and the side walls of the inner sides of the first check block and the second check block are used for inwards and obliquely limiting the part, extending out of the molded surface of the lower half die, of a lower half die blank. The forming method comprises the steps that stepped material spreading is conducted on the upper half die and the lower half die, and the problem that the extending blank part is easily clamped between the upper half die and the lower half die during die assembly is solved through the forming tool. According to the forming tool and the forming method, the product quality and the qualified rate are improved, the cost is reduced, secondary bonding is not needed, the manufacturing period is shortened, and the production efficiency is improved.

[Problem] To enable efficient and low-cost construction of a spar-type floating body and to simultaneously solve problems such as thermal cracking and bending cracking of concrete. [Solution] In a spar-type floating body 4, the lower half side is a steel-concrete composite structure part 4A in which concrete C is cast in a predetermined thickness on the inner surface side of an outer shell steel member 10 covering the outer periphery. In the steel-concrete composite structure part 4A, reinforcing bars placed in the concrete C include polygonal first reinforcing bars 35 and second reinforcing bars 36 disposed alternately in a staggered manner at intervals in the longitudinal direction of the floating body, the first reinforcing bars 35 and the second reinforcing bars 36 being constituted by a large number of joint parts a welded to the outer shell steel member 10 over a predetermined length range and at predetermined intervals in the circumferential direction of the outer shell steel member 10, and chord parts b linearly connecting ends of adjacent joint parts a, a. At the center position of each chord part b of the first reinforcing bars 35 and the second reinforcing bars 36, a predetermined cover to the outer surface of the concrete is ensured.

The utility model relates to the technical field of port and channel construction engineering, and discloses a shallow water wharf anti-pulling-out treatment device. The shallow water wharf anti-pulling-out treatment device comprises impact buffering mechanisms arranged on the seabed and a wharf foundation bed together and floating assemblies arranged on the seabed and the sea surface together. The impact buffering mechanism comprises a plurality of H-shaped steel fixing pieces and a plurality of sets of steel bars, the H-shaped steel fixing pieces are symmetrically installed on the outer wall of one side of the wharf foundation bed in a pairwise attached mode, and the lower half sections of the H-shaped steel fixing pieces are all inserted and buried in the seabed; the multiple sets of steel bars are fixedly installed on the outer walls of the two sides of the multiple H-shaped steel fixing pieces correspondingly. According to the utility model, the impact of sea waves and the jet impact of ship propellers can be effectively resisted, the service life of the wharf is prolonged, the foundation stability of the wharf is ensured, the problem of differential settlement of the wharf is solved, the safety degree of wharf operation is improved, and the investment cost of wharf operation is greatly reduced compared with dismantling and newly building.

The utility model relates to the technical field of round pipe supporting, and discloses a supporting pipe base which comprises a supporting pipe sleeve, first channel steel and a long round pipe, the first channel steel is arranged on the outer wall of the upper half portion of the supporting pipe sleeve, the second channel steel is arranged on the outer wall of the lower half portion of the supporting pipe sleeve, and the long round pipe is located in the supporting pipe sleeve. The outer side of the bottom of the long round pipe is provided with the supporting pipe sleeve, the supporting pipe sleeve is welded to a supporting steel plate or a deck at the bottom of the long round pipe through the first channel steel and the second channel steel, the supporting steel plate or the deck is welded to the outer side of the supporting pipe sleeve, and the supporting steel plate or the deck is welded to the outer side of the supporting pipe sleeve through the first channel steel and the second channel steel. The bottom of the long round pipe is supported through the supporting pipe sleeve; the supporting rods are arranged on the fixing plate, the supporting rods abut against the long circular pipes, and the supporting stability of the long circular pipes can be further improved through cooperation of the hoops.

The utility model discloses a reinforcing ring of a liquid tank for a large carbon dioxide ship. The reinforcing ring comprises a main ring, two auxiliary rings and two groups of connecting toggle plates, the main ring comprises a main ring web plate, a main ring panel and two surrounding plates; the outer diameter circle of the main ring web plate is a whole circle matched with the inner circle of the liquid tank, and the inner diameter circle of the main ring web plate is arranged on the upper half portion of the main ring web plate and is in an upper semicircle shape. The main ring panel is fixed at the inner diameter end of the main ring web; the two surrounding plates are fixed to the front surface and the rear surface of the upper portion of the lower half portion of the main ring web in a one-to-one correspondence mode. The two auxiliary rings are symmetrically arranged on the front side and the rear side of the main ring; each auxiliary ring comprises an auxiliary ring web plate and an auxiliary ring panel fixed at the inner diameter end of the auxiliary ring web plate; the two sets of connecting toggle plates are connected between the front surface and the rear surface of the lower half portion of the main ring web plate and the auxiliary ring web plates of the two auxiliary rings in a one-to-one correspondence mode, and the inner ends of the two sets of connecting toggle plates are fixed to the outer end faces of the two surrounding plates in a one-to-one correspondence mode. According to the utility model, the structural strength can meet the requirement, and the structural weight can be optimized.

The utility model discloses a ship liquid phase pipeline flange splashproof liquid collecting cover, including upper half cover body and lower half cover body, upper half cover body and lower half cover body all are equipped with semicircle type area, and upper half cover body can be arranged on the upside of lower half cover body and is buckled together with lower half cover body on the outer periphery of flange joint, and the edge of semicircle type area is radially arranged with the clamping hoop for the axial location of upper half cover body and lower half cover body, and lower half cover body is equipped with the support structure for supporting flange in the upper side of liquid collecting cavity, through setting up the clamping hoop to the axial location of upper half cover body and lower half cover body, the support structure guarantees this splashproof liquid collecting cover and the close degree of flange outside, and the clamping hoop, support structure, upper half cover body and lower half cover body cooperate and guarantee the position stability of this splashproof liquid collecting cover, avoid the displacement and the problem of falling off in the splashproof liquid collecting process to occur, thereby effectively prevent the liquid in the pipeline from leaking from flange joint and directly splashing on the ship body, avoid the brittleness of ship steel plate.

The invention provides a water hose box and a ro-ro passenger ship comprising the same, the water hose box is designed without a door, the water hose box comprises a main body frame, and the main body frame is of a U-shaped structure formed by long flat iron; the main body frame is divided into a rectangular space at the upper half part and a semicircular space at the lower half part, and the water hose is placed in the semicircular space at the lower half part of the main body frame after being wound. The problem that the water hose box is arranged in a ro-ro passenger ship, especially a loading cabin is solved, and the potential safety hazard problem caused by the fact that a traditional water hose box with a door cannot be opened is avoided.