12results about How to "Improve anchoring efficiency" patented technology

The utility model relates to the technical field of anti -floating anchor rod, concretely is a kind of fine rolled threaded steel anchor rod anchor head internal pressure installation structure, including threaded steel anchor rod main body, the middle part threaded connection of threaded steel anchor rod main body one end is equipped with locating nut, the one end of the locating nut is equipped with metal backing plate, the one end fixed mounting of metal backing plate has conical plug, the one end threaded connection of threaded steel anchor rod main body has end anchor head, the periphery of the lower end of the middle part of end anchor head is all equipped with split groove, the middle part of the lower end of end anchor head is equipped with conical slot, the one end of conical slot is equipped with abutting slot, the one end threaded connection of threaded steel anchor rod main body is equipped with limiting nut.The utility model has solved the traditional anchor head, such as mortar bonding type, shell type relies on grouting solidification or knocking extrusion and generates anchoring force, internal pressure forms hysteresis and cannot be actively adjusted, there are many problems in actual use.

The application discloses a composite cable connecting assembly, a strain-type fitting and a mounting method, and belongs to the technical field of composite material products. The composite cable connecting assembly comprises a composite cable core, the composite cable core comprises a composite core rod and aluminum strands covering the composite core rod, a part of the composite core rod is exposed outside the aluminum strands, and the composite cable connecting assembly further comprises at least one tapered portion fixed to the composite core rod exposed outside the aluminum strands, wherein the tapered portion is integrally wrapped and solidified by the same material as the composite core rod, and an accessory is fixed to the composite core rod through fastening cooperation with an outer tapered surface of the tapered portion. The composite cable connecting assembly, the strain-type fitting and the mounting method have better fatigue resistance, high connection stability, light overall weight and the advantage of convenient construction.

The utility model relates to a clamping type anchorage device suitable for CFRP stranded wires or rib materials, and belongs to the technical field of bridge engineering, and the clamping type anchorage device comprises a steel sleeve, a clamping piece, an aluminum sleeve and a bolt. Wherein the steel sleeve is an inner conical cylinder with an invariable outer diameter and a reduced inner diameter; one end of each clamping piece is separated, and the other end of each clamping piece is complete; one end of the aluminum sleeve is separated, and the other end of the aluminum sleeve is complete; the bolt is in threaded connection with the outer side of the steel sleeve. The inner surface of the steel sleeve, the clamping pieces and the inner and outer surfaces of the aluminum sleeve are specially treated. Compared with a common clamping type anchorage device, the anchorage device has the advantages that the pressure stress on the surface of the CFRP stranded wire or rib material is reduced, the friction force between the stranded wire or rib material and the aluminum sleeve is increased, and larger drawing force is provided; the anchorage device is convenient to install and can be used for cables or prestressed structures.

The present invention provides a low-stress loss, low-retraction, self-locking anchor, comprising an anchor plate and a limit plate arranged on the outer wall of the anchor plate; the anchor plate is provided with a plurality of inner conical holes, the inner conical holes are arranged regularly, and a petal-type conical clip is arranged in the inner conical hole, the petal-type conical clip includes at least two claw-type locking pieces, the petal-type conical clip is provided with a synchronous adjustment structure, the synchronous adjustment structure synchronously pushes or leaves the clip to facilitate the movement of the steel strand, a follow-up spring is provided on the outer side of the through-hole washer, and is compressed by the follow-up spring; a limit plate is also provided, the limit plate compresses the follow-up spring to push the petal-type conical clip to the inner conical hole, and the limit plate is fixedly installed on one side of the anchor plate. The present invention provides a low-stress loss, low-retraction, self-locking anchor for prestressed steel strands of road bridges or railway bridges.

The present invention relates to a high-yield nicotinamide mononucleotide saccharomyces cerevisiae strain and its application, belonging to the technical fields of enzyme engineering and genetic engineering. The strain is saccharomyces cerevisiae YZH-01, which is classified as saccharomyces cerevisiae Saccharomyces cerevisiae , was deposited in the General Microbiology Center of China Microbiological Culture Collection Administration on March 28, 2024. The deposit address is No. 3, Yard No. 1, Beichen West Road, Chaoyang District, Beijing. The deposit number is CGMCC No. 30174. This strain can improve the efficiency of whole-cell catalytic production of NMN; combined with the optimization of the feeding process in the whole-cell catalytic reaction system and the precise control of the substrate concentration, the method of adding substrate in batches is adopted, which not only enhances the efficiency and selectivity of the catalytic reaction, but also greatly improves the economic benefits of production.

The invention provides an anchorage device of a carbon fiber reinforced composite inhaul cable and an anchoring method of the anchorage device. The anchorage device comprises a first anchor cup, the first anchor cup is filled with an adhesive, and the adhesive is used for anchoring a plurality of inhaul cables penetrating through the adhesive in the first anchor cup; the second anchor cup is connected with the first anchor cup, the plurality of inhaul cables penetrate through the second anchor cup, a plurality of wedge-shaped clamping pieces are arranged in the second anchor cup, and the plurality of wedge-shaped clamping pieces are used for anchoring the plurality of inhaul cables penetrating through the plurality of wedge-shaped clamping pieces in the second anchor cup.

The utility model provides a sleeper steel mould positioning system and a steel mould containing the positioning system.The sleeper steel mould positioning system comprises a positioning support, the positioning support is located on the outer side of a mould shell and is fixedly connected with a bottom plate of the mould shell, a long round hole is formed in the bottom face of the positioning support, and the positioning support is fixedly connected with the bottom plate of the mould shell. A through hole penetrating through a bottom plate is formed in the position, corresponding to the long round hole, of the bottom plate of the formwork, and the end, away from the anchoring part, of the spike bolt sequentially penetrates through the through hole and the long round hole, extends out of the support and is locked through a locking nut. The sleeper steel mold positioning system can be installed on an original steel mold to be used in the production of manufacturing a concrete sleeper through a spike first anchoring method, so that manual anchoring is replaced, the anchoring efficiency of spikes is greatly improved, a new steel mold does not need to be manufactured, steel mold manufacturing materials are saved, steel mold manufacturing cost is saved, and practicability is high.

The utility model relates to a road surface metal anti-cracking net fast anchoring device which comprises a gas gun, a shoot nail and an anchoring piece, the anchoring piece is used for covering a twisting part of a metal anti-cracking net, two first bevel edges and two second bevel edges, the lower end face of the anchoring piece is connected with a limiting piece, and the limiting piece is used for abutting against the two first bevel edges or the two second bevel edges. The upper end face of the anchoring piece is provided with at least two pits, the projection of each pit in the vertical direction falls into the cavity of the metal anti-cracking net, and the shooting nails are anchored into the ground through the pits of the anchoring piece through a gas gun. The shooting nails are matched with the anchoring pieces to achieve anchoring of the metal anti-cracking net, the positions of the anchoring pieces are limited through the limiting pieces on the lower end faces of the anchoring pieces, the pits serve as anchoring references, the shooting nails can be accurately shot into the ground through the anchoring pieces, the anchoring efficiency is improved, and the operation intensity is relieved; the technical problems that in the prior art, metal anti-cracking net anchoring operation is low in efficiency and high in work intensity are solved.

The application relates to the technical field of structural reinforcement engineering, and discloses a carbon fiber plate anchorage device, which comprises an upper cover plate and a lower cover plate, the upper cover plate and the lower cover plate are oppositely arranged, the inner walls of the two are respectively provided with inclined guide surfaces which are gradually narrowed from the middle section to the tail end, and the two sides of the upper cover plate and the lower cover plate are respectively provided with inclined guide rails which protrude outward; at least three pairs of wedge blocks, each pair of wedge blocks comprises two wedge blocks which are symmetrically arranged in the inner cavity between the upper cover plate and the lower cover plate, and the outer side inclined surface of each wedge block is inclinedly attached to the inclined guide surface of the inner wall of the corresponding cover plate. The gradually changing rigidity design of the transition assembly makes the cross-section rigidity of the carbon fiber plate at the anchoring end gradually change from the free section to the anchoring end, the cross-section rigidity mutation is eliminated, the concentrated shear peak at the anchoring section is converted into the uniformly distributed shear along the length direction of the transition assembly, the interlaminar peeling damage of the carbon fiber plate at the anchoring end is effectively prevented, and the long-term reliability of the anchoring system is remarkably improved.

The utility model relates to the technical field of building construction, in particular to a rock mass anchoring device which is provided with an anchoring part, a rotation supply module and a pedestal, when rock and soil are anchored, the anchoring device is inserted into a rock mass through the anchoring part, and the rotation supply module is connected to the anchoring part and is perpendicular to the axial direction of the anchoring part. The pedestal is rotationally connected to the rotation supply module, the pedestal rotates around the rotation supply module, then angle adjustment is achieved, after connection of the anchoring part and the wall is completed, the pedestal is made to be parallel to the rock mass by rotating the pedestal, then the pedestal is fixed to the rock mass, and anchoring of the rock mass can be achieved. The pedestal and the wall body can be fixed without additionally arranging a gasket between the pedestal and the rock mass, so that the anchoring efficiency of the rock mass is improved, and convenience is provided for anchoring of the rock mass.

The invention discloses a carbon fiber composite inhaul cable and a preparation method thereof.The inhaul cable comprises multiple layers of cable body carbon plates, nuts, split type anchorage devices, sealing covers and interlayer reinforcing carbon plates, the multiple layers of cable body carbon plates are sequentially arranged in a stacked mode, and the interlayer reinforcing carbon plates are bonded between the two ends of the adjacent layers of cable body carbon plates; the exterior of the bonding part of the cable body carbon plate and the interlayer reinforcing carbon plate is wound with a high-strength carbon fiber precursor and then is poured with epoxy resin to form a pouring body, the pouring body is located in the split type anchorage device, the nut is in threaded connection with the exterior of the split type anchorage device, and the sealing cover is connected to the outer end of the split type anchorage device. The interlayer reinforcing carbon plate is formed through a pouring process, internal pressure stress can be efficiently transmitted, the overall stress condition of a pouring body is improved, after the cambered surface of the inner wall face of the split type anchorage device is matched with the cambered surface of the end face of the pouring body, automatic correction can be achieved as much as possible when relative movement occurs, and the construction efficiency is improved. Loads in different directions can be automatically corrected into tension in the horizontal direction, and certain anti-vibration and anti-fatigue characteristics are achieved.

The utility model relates to a temperature control device for bridge cable hot casting anchor anchoring material casting, relates to the device of hot casting anchor anchoring material casting, including at least one installation dynamic heat preservation device on the anchor cup, dynamic heat preservation device includes annular sleeve, heat preservation device, temperature sensor, control system, the inner hole of annular sleeve is covered on the outer surface of anchor cup, heat preservation device, temperature sensor are installed in the closed cavity of annular sleeve respectively, the signal output end of temperature sensor is connected with the signal input end of control system, the signal output end of control system is connected with heat preservation device, the utility model discloses through heat preservation device can make the anchoring material in the anchor cup keep proper temperature, solve the problem of the insufficient compactness caused by the big void ratio of anchoring material and the uneven casting, further promote the anchoring efficiency, can also reduce the thermal stress crack in the cooling process of casting, significantly improve the anchoring material quality.