38results about How to "Safe and stable support" patented technology

The invention discloses a hollow triangular arc retaining wall. The retaining wall mainly comprises multiple hollow triangular arc retaining wall bodies, multiple bearing piles and rigid connecting parts; the hollow triangular arc retaining wall bodies are located on one side of a slope, one hollow triangular arc retaining wall body is supported by two adjacent bearing piles, each hollow triangular arc retaining wall body mainly comprises a hollow retaining wall division block I, a hollow retaining wall division block II, a hollow retaining wall division block III and a supporting column, andthrough the rigid connecting parts, anchorage parts of the hollow retaining wall division blocks III and anchorage parts of the bearing piles are anchored. The hollow triangular arc retaining wall isused for bearing pressure, the use amount of concrete and reinforcing steel bars is greatly reduced, the triangular structure saves cost as much as possible, and stable and safe supporting of the mountain slope body is ensured.

The invention provides a lifting platform box girder support structure for super high-rise buildings and a construction method thereof, wherein the lifting platform box girder support structure comprises a lifting platform and a box girder arranged at the bottom of the lifting platform, a support corbel is arranged at the end part of the box girder, a shear wall of a super high-rise building is provided with a support end corresponding to the support corbel, a hole is formed in a position of the shear wall corresponding to the support corbel of at least one box girder, and a temporary support frame is arranged in the hole position to underprop the support corbel. The lifting platform box girder support structure for super high-rise buildings provides a supporting point for the box girder in the hole position of the shear wall, thereby better ensuring safety of the lifting platform.

The invention provides an assembling type prefabricated balcony board and balcony support connecting structure and belongs to the field of construction structures. The assembling type prefabricated balcony board and balcony support connecting structure is characterized in that two U-shaped-slot clamping steel plates are connected with the vertical face of an angle iron connector to form an angle iron connector, the horizontal face of the angle iron connector is connected with the bottom of the balcony board, C-shaped steel balcony support columns is clamped between the two U-shaped-slot clamping steel plates, a locking plate is correspondingly limited at the upper ends of the U-shaped-slot clamping steel plates, the upper portions of the C-shaped steel balcony support columns are disposed in the U-shaped slots of the two clamping steel plates and fixedly connected, the C-shaped steel balcony support columns are in limited slide connection with an upper balcony board layer, when a lower balcony board layer is pressed, the C-shaped steel balcony support columns and the locking plate slides downwards, the locking plate is abutted against the clamping steel plates when the C-shaped steel balcony support columns and the locking plate slides to the set distance, the locking plate is prevented from continuing sliding by the clamping steel plates on the lower portion, the deformation action, generated by supporting and stretching a balcony, of the lower balcony board layer is adapted to, the C-shaped steel balcony support columns are prevented from be separated from the balcony board, and safe and reliable connection of the assembling type prefabricated balcony board and the balcony support is achieved.

The invention discloses a multi-function ladder platform, and belongs to the field of ladders. The multi-function ladder platform comprises a ladder platform and a supporting frame arranged on the bottom side of the ladder platform, wherein the supporting frame comprises a lifting platform, a base, a lifting device and a transporting device. The lifting device comprises a lifting screw rod, guiding elements and a lifting rotating table, wherein the lifting screw rod is rotatably arranged on the base and is connected with the lifting platform in a threaded mode, and the guiding elements are arranged on the base and arranged on the lifting platform in a sliding penetrating mode. The base comprises a supporting base and a supporting telescopic seat arranged on one side of the supporting base,and the supporting telescopic seat can be expanded symmetrically relative to the supporting base and can be retracted to one side of the supporting base. The transporting device includes a rotating support and a tugboat set arranged on the rotating support, the angle between the tugboat set and the supporting base can be adjusted. According to the multi-function ladder platform, the height of ladder platform can be supported and adjusted safely and stably, the application safety factor of a platform ladder can be improved, and the ladder platform can be packed up and transported to facilitatethe movement of the ladder platform and the platform ladder.

The invention discloses a nuclear power generator stationary blade seat storage support. The nuclear power generator stationary blade seat storage support comprises a base, a first side edge support,a second side edge support, first support frames and second support frames. By means of the nuclear power generator stationary blade seat storage support, multiple stationary blade seats can be stacked through cooperation between the multiple first support frames and the multiple second support frames; the problem that the stationary blade seats are put on site sleepers one by one; plenty of equipment storage spaces are saved; and standardized management over the site can be conducted conveniently. The stationary blade seats are put on the stationary blade seat storage support; when the stationary blade seats are checked and maintained by maintenance personnel, the maintenance personnel can perform maintenance work without hoisting equipment; and a great amount of maintenance time is saved. In addition, the first side edge support and the second side edge support arranged at the two sides of the base form a frame structure; the placed stationary blade seats are surrounded; the possibility that the stationary blade seats are touched to be damaged by the personnel by accident can be effectively avoided; and safety of the precision equipment is protected. The stationary blade seat storage support is simple in structure, steady and safe to support and convenient to maintain, operate and control and can be applied and popularized on a large scale conveniently.

The invention discloses a support device for wire stringing, relating to the technical field of cable erection. The support device comprises a support plate, wherein a handle is arranged at the middle of the front part of the support plate, a power switch is arranged above one side of the handle, a storage battery is arranged at the middle part of the other side of the handle, a rotation shaft is welded on one side of the front part of the support plate, a pulley matched with the rotation shaft is arranged at the top end of the rotation shaft, a semicircular groove A is formed on the outer surface of the pulley, a wire clamping plate is arranged above the rotation shaft, a semicircular groove B is formed at the lower part of one end of the wire clamping plate, and a thread hole is formed on one side of the top end of the wire clamping plate. With the combination of the wire clamping plate, the semicircular groove A and the semicircular groove B, a rope can be prevented from deviating from the pulley during the cable hoisting process, and the stability of cable transmission by the pulley is favorably improved; and with the combination of a baffle plate A, a baffle plate B and a spring, a cable can be clamped between the baffle plate A and the baffle plate B, and thereby being beneficial for safely and stably supporting the cable during the erection process.

The invention discloses an irregular-shaped leg column support installation and construction method. The method comprises the following steps that (1) multiple layers of bottom load-bearing rebars are installed on a bearing platform bed course at the top end of a pile foundation of a bearing platform, meanwhile, multiple sets of supporting piers are installed on the bearing platform bed course, and the supporting piers are welded to the intersections of the bottom load-bearing rebars; (2) a bearing platform door type stiff main framework is fixed to each set of supporting piers in the vertical direction, and then the lower portions and the middle portions of the adjacent main frameworks are fixedly connected through bottom-layer connecting beams and the middle load-bearing rebars, wherein the bottom-layer connecting beams and the middle load-bearing rebars are arranged in the horizontal direction; (3) concrete is poured in the spacing between the bearing platform bed course and the upper portions of the middle load-bearing rebars; (4) the tops of the adjacent main frameworks are fixedly connected through top-layer connecting beams arranged in the horizontal direction; (5) multiple layers of top load-bearing rebars are fixedly connected to the top-layer connecting beams; (6) supports are installed on the main frameworks. By the adoption of the method, the whole stress system having enough bearing capacity is formed.

The invention provides a combined support shield type comprehensive mining method. A combined support of the method ascends and descends through a jack, prestress is applied to the combined support, long-term bearing is achieved through lifting nuts and supporting threaded rods, the supporting height is adjusted by combining base plates and sole timber with the supporting threaded rods, the overall structure is simple, machining and manufacturing are easy, the supporting cost is reduced, on-site operation is easy and convenient, and the method can adapt to small and medium-sized mines. Compared with an existing comprehensive mining method and a room-and-pillar method, the combined support shield type comprehensive mining method is free of ore pillar losses, and the index that the loss ratio and the dilution ratio are close to zero can be met. Compared with an existing wall type caving method, an operation space is supported more safely and stably by the combined support, on-site following-up and moving and long-term repeated application of the combined support are more reliable and convenient, and caving treatment measures of the combined support for a goaf are more appropriate and safer.

The invention discloses a multi-function ladder platform, and belongs to the field of ladders. The multi-function ladder platform comprises a ladder platform and a supporting frame arranged on the bottom side of the ladder platform, wherein the supporting frame comprises a lifting platform, a base, a lifting device and a transporting device. The lifting device comprises a lifting screw rod, guiding elements and a lifting rotating table, wherein the lifting screw rod is rotatably arranged on the base and is connected with the lifting platform in a threaded mode, and the guiding elements are arranged on the base and arranged on the lifting platform in a sliding penetrating mode. The base comprises a supporting base and a supporting telescopic seat arranged on one side of the supporting base,and the supporting telescopic seat can be expanded symmetrically relative to the supporting base and can be retracted to one side of the supporting base. The transporting device includes a rotating support and a tugboat set arranged on the rotating support, the angle between the tugboat set and the supporting base can be adjusted. According to the multi-function ladder platform, the height of ladder platform can be supported and adjusted safely and stably, the application safety factor of a platform ladder can be improved, and the ladder platform can be packed up and transported to facilitatethe movement of the ladder platform and the platform ladder.

The invention provides a superconducting magnet connecting device and a superconducting dynamic magnetic levitation vehicle track system, wherein the superconducting magnet connecting device comprises: a cavity, which is arranged on a suspension frame; an adiabatic support mechanism is arranged on the superconducting magnet In the body, it is used to connect the inner dewar of the fixed superconducting magnet; the elastic support mechanism is arranged in the cavity, which is used to absorb the first resultant force exerted by the suspension frame through the cavity, and output the second resultant force after the first resultant force is buffered The force transfer member is arranged between the superconducting magnet and the suspension frame frame; a plurality of force transfer members are connected to the adiabatic support mechanism and the force transfer member, and are used to dispersely act on the second resultant force on the adiabatic support mechanism to be distributed to the adiabatic support mechanism. The inner dewar of superconducting magnets. The force transmission path from the superconducting magnet to the suspension frame is simplified, and the problems that the superconducting magnet requires high rigidity and low vehicle running comfort, and the vehicle cannot support the superconducting magnet stably and safely when the vehicle runs at low speed are solved.