5results about How to "Strong anchoring force" patented technology

The application discloses a kind of building construction anti-seismic support, belong to anti-seismic support technical field, it includes building structure main body, pipeline, U-shaped pipe clamp, the both ends of pipeline are equipped with U-shaped pipe clamp, the top of U-shaped pipe clamp is threadedly connected with full tooth screw rod, the outer surface of full tooth screw rod is equipped with C-shaped channel steel A, the top of full tooth screw rod is fixedly installed with screw joint, the top of screw joint is fixedly installed with rear expanded-base anchor bolt A, rear expanded-base anchor bolt A is connected with building structure main body;The application is stably supported in vertical direction and lateral direction, when earthquake occurs, energy can be absorbed and dispersed by the rotation of first anti-seismic hinge B and first anti-seismic hinge A and the deformation of C-shaped channel steel B and C-shaped channel steel A, while rear expanded-base anchor bolt B and screw joint provide stable anchoring force, can be constrained and buffered from vertical, lateral, effectively disperse seismic energy, and then improve the anti-seismic performance of anti-seismic support.

The present application belongs to the technical field of geotechnical engineering anchoring and supporting, and provides a prestressed expanding-shell type anchor rod and a construction method thereof, which comprises a rod body including a locking section and a pulling section, the front end of the locking section is an expanding-shell head, the expanding-shell head is expanded outward by abutting the head end of the rod body against the bottom of an anchor hole and rotating it, the locking section and the pulling section are integrally connected in sequence, and the connecting end of the locking section and the pulling section is provided with a first conical frame and a second conical frame in correspondence; the first conical frame and the second conical frame each comprise a pull ring, a shaped ring and a tensile reinforcement. The anchor rod structure has excellent axial tensile capacity, and the anchoring capacity with the surrounding rock and soil layer is stronger than that of the conventional anchor rod, so that the axial tensile stress generated by the large deformation of the surrounding rock and soil can be well coped with, the normal supporting capacity can still be maintained in this case, thereby reducing the deformation degree of the rock and soil layer and facilitating the subsequent maintenance by the staff.

The application provides a twice clamping valve repair device, which comprises a pushing catheter, a chuck assembly and a pre-clamping assembly. The chuck assembly comprises a chuck push rod movably arranged in the pushing catheter, a proximal chuck and a distal chuck which can be opened and closed relative to each other. The pre-clamping assembly comprises an upper clamping piece and a lower clamping piece. The upper clamping piece comprises an upper push rod and an upper clamping part arranged at the distal end of the upper push rod. The lower clamping piece comprises a lower push rod and a lower clamping part arranged at the distal end of the lower push rod. The valve repair device has a working state. In the working state, the upper clamping part has a first clamping surface, the lower clamping part has a second clamping surface, the first clamping surface and the second clamping surface cooperate to clamp the valve leaflet, and the proximal chuck and the distal chuck cooperate to clamp the valve leaflet again. The ratio of the area of the first clamping surface to the area of the valve leaflet and the ratio of the area of the second clamping surface to the area of the valve leaflet are both greater than or equal to 1 / 6 and less than 1, so that the valve leaflet can be prevented from being folded and the effect of the operation can be ensured.

The application discloses a recyclable prestressed anchor cable, which comprises an anchor cable assembly, a support and a connecting assembly, the anchor cable assembly comprises a steel strand and a recycling cable, the steel strand comprises a free section and an anchoring section which are arranged separately, the support is provided with a grouting hole and a mounting hole, the connecting assembly comprises a connecting part and a first clamping part in a conical shape, the connecting part is embedded in the mounting hole, the connecting part is formed with an inner cavity, the inner cavity comprises a first end and a second end which are arranged oppositely, the free section is mounted at the first end, the second end is arranged in a tapering manner along a first direction, the first clamping part is sleeved on the anchoring section and embedded in the second end, and one end of the recycling cable extends into the inner cavity and is connected with the first clamping part along the first direction. The recyclable prestressed anchor cable can be used for supporting the side slope, the inner wall of a foundation pit, a mine and the like, the supporting and recycling principle is simple, the recyclable prestressed anchor cable is easy to manufacture, the structure is simple, the recyclable prestressed anchor cable is convenient to operate, easy to recycle, can be recycled for many times, and the use value of the anchor cable is improved.