11results about How to "Strong anchoring force" patented technology

The application provides a valve repair system. A pre-clamping device in the valve repair system comprises a delivery shaft and a clamping assembly. The delivery shaft is provided with an axial delivery cavity and a receiving cavity. The delivery cavity penetrates through opposite ends of the delivery shaft, and the receiving cavity penetrates through the distal end of the delivery shaft. The delivery cavity is used to movably install a suture implant device. The clamping assembly comprises an upper clamping member and a lower clamping member. The upper clamping member comprises an upper clamping push rod movably installed in the receiving cavity and an upper clamping portion arranged at the distal end of the upper clamping push rod. The lower clamping member comprises a lower clamping push rod movably installed in the receiving cavity and a lower clamping portion arranged at the distal end of the lower clamping push rod. The pre-clamping device has a working state. In the working state, the upper clamping portion and the lower clamping portion are located outside the receiving cavity. The upper clamping portion has a first clamping surface, and the lower clamping portion has a second clamping surface. The first clamping surface cooperates with the second clamping surface to clamp a valve leaflet. The area ratio of the first clamping surface and the second clamping surface to the valve leaflet is greater than or equal to 1 / 6 and less than 1.

The utility model belongs to the technical field of self-adhesive labels, in particular to a flexible self-adhesive label suitable for curved surface adhesion, which comprises an outer layer, and a printing layer and a protective layer are sequentially coated on the upper surface of the outer layer from bottom to top. According to the flexible self-adhesive label suitable for curved surface pasting, the flexible self-adhesive label suitable for curved surface pasting is arranged and can adapt to curved surface pasting, the middle layer is made of silicon rubber, and controllable and local deformation (such as groove widening / deepening) can be generated when the label is subjected to bending or stretching stress through the stress release groove microstructure; therefore, stress is efficiently absorbed and dissipated, failure caused by the fact that the stress is transmitted to the edge of the label or the interface of the bonding layer is prevented, the stressed stress can be dispersed through the wave grooves, and the situation that the middle layer of the label is broken after being bent multiple times due to stress concentration is avoided.

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.

The utility model discloses a construction structure of window sill plate relates to window sill plate body installation technical field, including wall body and window body, the window body is installed at the top of wall body perpendicularly, the expansion bolt is set up in the outside of wall body, the outside of wall body is provided with finished product support spare, the top fixed mounting of finished product support spare has window sill plate body, the inside of window sill plate body is provided with the male rod butt joint with finished product support spare, when the window body appears damage, through expansion bolt and fixed clamping nail and wall body connection, and construction personnel only need to unscrew the nut, and pull out the clamping nail, can with the window body from wall body disassembly, carry out replacement, through the male rod butt joint with finished product support spare, and help angle code and expansion nail fixed, after removing expansion nail, can easily take off window sill plate body from finished product support spare, complete replacement operation, reduced the later maintenance cost, prolonged the service life of window sill structure.

The invention relates to the technical field of coal mine anchoring, in particular to an anchor rod mounting and drilling device for a coal mine. Comprising a movable trolley, a drilling part is arranged on the front portion of the movable trolley, an anchor rod mounting part is arranged on the rear portion of the movable trolley, the drilling part comprises a drilling assembly, the drilling assembly comprises a drilling machine, a drilling rod A and a drilling rod B, the drilling rod A and the drilling rod B are detachably connected with the drilling machine, and an auxiliary drilling rod is movably connected into the drilling rod B; the side wall of the cylindrical drill hole is dug outwards to form an annular limiting groove; the anchor rod mounting part comprises a positioning anchor rod assembly, the positioning anchor rod assembly comprises an auxiliary mounting assembly and an anchor rod body, a limiting ring is arranged on the upper portion of the anchor rod body, a plurality of limiting nails are movably arranged in the limiting ring, and when concrete is poured into the cylindrical drill hole through the anchor rod body, the limiting nails extend outwards into limiting grooves, and the limiting nails are clamped in the limiting grooves. And the anchor rod is anchored with the inner wall of the limiting groove, so that continuous automatic operation of drilling, groove expanding, anchor rod mounting and pouring is realized.

The present application relates to a kind of expansion soil slope assembled continuous retaining wall structure, slope bottom is provided with the anchor rod along the width direction extension, length direction interval arrangement;Unit retaining wall along the length direction of slope is arranged to be integrated, and be connected with anchor rod;Slope top is provided with the slope top beam extending along length direction;Slope top beam and unit retaining wall are arranged unit frame beam connected head to tail between them, one end is elastically connected with unit retaining wall, the other end is on slope top beam, adjacent unit frame beam is also elastically connected;Unit retaining wall one end is provided with cable, cable extends and abuts on wall upper end, extends along unit frame beam length direction and cooperates, compared with traditional independent retaining wall, improve the resistance to sliding force of slope, guarantee the stability of slope bottom, can timely adjust internal stress distribution of structure, significantly improve the adaptability of retaining wall to periodic expansion and shrinkage of expansion soil, the abutting cooperation of cable can exert constraint tension on unit retaining wall, further improve the anti-overturning capacity of unit retaining wall.

The utility model relates to a novel prefabricated sandwich thermal insulation external wall panel which comprises an inner acanthus, an inner acanthus CFRP (carbon fiber reinforced plastic) rib net, a thermal insulation board, an outer acanthus CFRP rib net and an outer acanthus, the inner acanthus, the outer acanthus and the heat preservation plate are bonded through W glue, a plurality of split pipe type pulling pieces penetrating through the heat preservation plate are arranged in the externally-hung wall plate, and the split pipe type pulling pieces are anchored between the inner acanthus and the outer acanthus and are in lap joint with a CFRP rib net of the inner acanthus through FRP short ribs; embedded parts are arranged at the four corners of the externally-hung wall plate, each embedded part comprises an inner threaded steel sleeve and a high-strength bolt which penetrate through the heat preservation plate and are anchored between the inner acanthus and the outer acanthus, one end of each high-strength bolt is connected with the corresponding inner threaded steel sleeve through mechanical engagement, and the other end of each high-strength bolt extends out of the corresponding inner acanthus to be connected with the main body structure. According to the externally-hung wallboard, the high combination and connection performance between the heat preservation board and the leaf board is achieved through the combined action of the split pipe type pulling pieces and the W glue; the connection mode of the novel prefabricated sandwich heat preservation externally-hung wallboard and the main body structure improves the construction efficiency, and factory production is facilitated.