242results about How to "The connection structure is stable and reliable" patented technology

The invention provides a turnover cabinet, comprising a cabinet frame, a cabinet body, an upper guide overturning module and a lower guide overturning module, wherein the cabinet body is arranged in the cabinet frame and can overturn at 180 degrees relative to the cabinet frame; the upper guide overturning module and the lower guide overturning module are connected with the inner wall of the cabinet frame and the cabinet body; the upper guide overturning module is fixedly connected with the top wall of the cabinet frame and is movably connected with the top end of the cabinet body; the lower guide overturning module is fixedly connected with the bottom wall of the cabinet frame and is movably connected with the bottom end of the cabinet body; the upper guide overturning module and the lower guide overturning module make synchronous movement while a horizontal acting force is applied onto the cabinet body, thus enabling the cabinet body to rotate relative to the cabinet frame. The turnover cabinet can overturn at 180 degrees, and occupies a smaller space; furthermore, the front and back of the cabinet body of the turnover cabinet are set into different functional areas, so that a user can overturn the turnover cabinet to the corresponding functional area as required.

The invention discloses a shield interval tunnel connection channel segment supporting structure. The shield interval tunnel connection channel segment supporting structure comprises a segment ring formed by splicing a plurality of segments and an annular steel supporting structure connected around the inner side of the segment ring in the circumferential direction. Splicing screw holes are formedin the middles of the inner sides of the segments, and splicing bolts in threaded fit with the splicing screw holes are arranged corresponding to the splicing screw holes. The annular steel supporting structure comprises arched steel supporting pieces with the number consistent with that of the segments, and every two adjacent arched steel supporting pieces are detachably connected. Via holes areformed in the positions, corresponding to the splicing bolts, of the middles of the arched steel supporting pieces, and the arched steel supporting pieces penetrate through the via holes through thesplicing bolts to be screwed into the corresponding splicing screw holes to be detachably connected with the corresponding segments. Telescopic mechanisms are arranged between the arched steel supporting pieces and the corresponding segments. The shield interval tunnel connection channel segment supporting structure is simple in structure and convenient and fast to assemble and disassemble, constructors and materials can enter and exit conveniently, and the construction period of a shield connection channel is effectively shortened.

The invention discloses a steel structure node connecting structure for a building. The structure comprises a square stand column, a cross beam and a sliding sleeve sleeving the square stand column, wherein a connecting sleeve is arranged at one end, being connected with the square stand column, of the cross beam, the sliding sleeve and the connecting sleeve are both square-tube-shaped, the sliding sleeve can slide along the square stand column, two convex rotating supporting seats are arranged on each of the front surface and the rear surface of the sliding sleeve, the front surfaces of the two rotating supporting seats located on the front surface of the sliding sleeve and the rear surfaces of the two rotating supporting seats located on the rear surface of the sliding sleeve are arc-shaped surfaces located on the same one cylindrical surface, the axis of the cylindrical surface is perpendicular to the axis of the square stand column, a corresponding rotating pressing plate is arranged between the connecting sleeve and each rotating supporting seat, and the rotating pressing plates are attached to the arc surfaces of the rotating supporting seats correspondingly. The invention further discloses a connection method of the structure. The structure has the beneficial effects that the connecting sleeve can be rotated by a certain angle relative to the sliding sleeve along the axial line of the cylindrical surface, so that the cross beam has a rotatable degree of freedom, and meanwhile, connecting structures among all steel structural members are stable and reliable.

A magic cube comprises a plurality of blocks formed by splicing of splicing blocks, a centre housing and a mounting base; the splicing blocks are mounted at the top of the centre housing; the mounting base is mounted at the bottom of the centre housing; friction surfaces are formed on the outer side of the centre housing; a first cooperation part is arranged on the centre housing; second cooperation parts are arranged on the splicing blocks; the second cooperation parts and the first cooperation part are fixedly connected with one another in a clamping manner; a third cooperation part is arranged at the bottom of the centre housing; a fourth cooperation part is arranged on the mounting base; the fourth cooperation part and the third cooperation part are fixedly connected with each other in a clamping manner; color blocks are mounted on the splicing blocks; display surfaces are arranged on the outer sides of the color blocks; fifth cooperation parts are arranged on the color block; sixth cooperation parts are arranged on the splicing blocks; the sixth cooperation parts and the fifth cooperation parts are fixedly connected with one another in a clamping manner. The magic cube provided by the invention is fast and reliable in connecting structure, and can effectively avoid loosing and falling apart of all parts; in addition, the color blocks are fixed to the blocks in a clamping manner, so that the color blocks are unlikely to fall off.

The invention discloses a steel pipe truss prestressed concrete laminated slab, which comprises a reinforced concrete bottom plate and a steel pipe truss. A plurality of longitudinal prestressed steel bars are arranged inside the reinforced concrete bottom plate. The steel pipe truss includes steel pipes and steel pipes welded on both sides. The wavy steel bar, the trough section or / and the lower section of the web bar of the wavy steel bar is transversely bent to form a bent V-shaped supporting force transmission component, and the trough section or / and the transversely bent lower section of the web bar are laterally embedded in the reinforced concrete bottom plate Inside, the vertical lower section of the web bar is embedded in the concrete floor, and the bent V-shaped supporting force-transmitting part is provided with longitudinal prestressed steel bars, and the longitudinal pre-stressed steel bar and the bent V-shaped supporting force-transmitting part are bonded together by concrete. While ensuring the structural strength, it has the characteristics of being convenient for industrialization, standardization, and mechanized production.