64results about How to "Improve the anchoring effect" patented technology

The utility model provides an anchoring device for preventing landslide geological disasters, and relates to the technical field of anchoring equipment, the anchoring device comprises an anchor rod assembly, a transmission assembly is arranged in the anchor rod assembly, the transmission assembly comprises a lead screw rotationally connected to the inner wall of the anchor rod assembly, and the upper end of the lead screw penetrates through the top surface of the anchor rod assembly. According to the anchoring device for preventing the landslide geological disaster, a sliding block and a first trapezoidal block can be driven to extrude a second trapezoidal block through rotation of a lead screw, and then the second trapezoidal block drives a push plate and a spine block to move towards the outer side of an anchor rod body till the push plate and the spine block are inserted into soil; the firmness of the device is effectively improved by inserting the push plate and the spine blocks into soil, the anchoring capacity is improved, the device can rapidly anchor the protective net and the protective plate, the anchoring effect is good, and practicability is high.

The invention relates to the technical field of civil engineering and composite materials, in particular to a fiber composite anchor rod intelligent design method and system.The method comprises the following steps that carbon fibers and glass fibers are used for manufacturing a carbon-glass hybrid anchor rod core part, and meanwhile, LCP fiber bundles are used for weaving the surface of the carbon-glass hybrid anchor rod core part to form a woven layer; winding LCP fiber bundles on the surface of the braid layer to form LCP fiber winding ribs, so as to obtain the fiber composite anchor rod; adjusting the adjustable parameters of the fiber composite material anchor rods to produce a plurality of fiber composite material anchor rods so as to construct a production parameter prediction model, and using the production parameter prediction model to obtain production parameter prediction values of the fiber composite material anchor rods when anchor rod performance parameters are given; and producing the fiber composite anchor rod according to the production parameter predicted value. By means of the method, the fiber composite anchor rod high in mechanical property and economical efficiency can be produced, the production efficiency can be improved, and the production cost can be reduced.

The invention relates to a non-magnetic concrete frame structure with additional aluminum ribs and FRP ribs and non-magnetic concrete. The concrete frame structure comprises FRP beam longitudinal ribs, the additional aluminum ribs, FRP column longitudinal ribs and the non-magnetic concrete. The additional aluminum ribs are anchored at the two ends of the FRP beam longitudinal bars and the top ends of the FRP column longitudinal bars respectively, the anchoring length needed by the FRP bars is effectively reduced, and the FRP beam longitudinal bars and the FRP column longitudinal bars are arranged in the non-magnetic concrete in a non-bending mode. The non-magnetic concrete is prepared from the following components in parts by weight: 360 to 500 parts of non-magnetic cement, 700 to 800 parts of non-magnetic fine aggregate, 950 to 1200 parts of non-magnetic coarse aggregate, 150 to 180 parts of water, 0.2 to 0.4 part of water reducing agent and 0 to 0.2 part of functional additive, and the residual magnetism intensity of each component is lower than 1nT. The FRP bars with the remanence intensity smaller than 0.2 nT and the non-magnetic concrete with the remanence intensity smaller than 1 nT are adopted, and interference of magnetic substances (remanence reaches thousands or even tens of thousands of nT) in conventional steel bars and concrete on high-precision equipment and instruments is effectively avoided. And the service magnetic stability of the structure in the life cycle is effectively guaranteed, and powerful support is provided for development and application of the preceding scientific research technology.

The utility model discloses a shear wall external post-embedded steel bar anchoring structure in the technical field of reinforced concrete structures, which comprises a concrete wall, one side of the concrete wall is connected with a beam body, a post-anchored steel bar is inserted into the concrete wall, one end of the post-anchored steel bar penetrates into the beam body, and the other end of the post-anchored steel bar penetrates into the beam body. The other ends of the rear anchoring steel bars penetrate to the surface of the concrete wall, the surfaces of the ends, located outside the concrete wall, of the rear anchoring steel bars are fixedly connected with back steel plates, and the back steel plates abut against the surface of the concrete wall. According to the scheme, through the structural arrangement of the rear anchoring steel bars, the back steel plates and the bolts, the anchoring effect of the rear anchoring steel bars is improved, the stress requirement of the rear anchoring steel bars is met, the thin wall steel bar anchoring problem is solved, meanwhile, the back steel plates and the rear anchoring steel bars can be fixed through the bolts or welded, and the installation convenience of the device is further improved.

The utility model relates to the technical field of bridges, and provides an anti-seismic stop block of a bridge, which comprises a connecting part and a supporting part which are connected with each other, the connecting part is provided with a through hole, an anchoring steel bar can penetrate through the through hole, and the anchoring steel bar is arranged in a cover beam, a support padstone or a pier. According to the device, the anti-seismic check block is prevented from protruding out of the top face of the cover beam, the cover beam does not need to reserve an installation space on the top face, the outer end face of the cover beam can be flush with the end face of the support padstone, the use amount of cover beam materials is saved, the main beam and the bridge deck which are large in self weight exist above the installation position of the connecting part, the connecting part can be pressed more tightly, and the anti-seismic effect is better. Therefore, the foundation stress of the anti-seismic check block is more stable, the transverse displacement of the main beam is effectively resisted by virtue of the self weight of the upper structure, the impact force of the main beam does not need to be resisted independently by virtue of the self weight of the anti-seismic check block, the design size of the anti-seismic check block is effectively reduced, the design difficulty and the construction difficulty are further simplified, and the construction period is shortened.

The present invention relates to a buoy system, comprising: a buoy body; and an anchoring device, which is arranged below the buoy body and is used to stabilize the buoy body, and the buoy body comprises: a main cabin, at the bottom of which the anchoring device is arranged; a mast, which is arranged above the main cabin; a plurality of brackets, which surround the side of the main cabin; and a plurality of outer wall components, which are fixed on the brackets and fixed on the outer side of the main cabin, and form a closed floating chamber with the brackets and the side of the main cabin. The present invention realizes structural modularization, simplifies the production process, and is convenient for transportation and loading and unloading. It can be deployed and recovered by small and medium-sized fishing vessels and engineering ships, reducing the cost of using ships, and optimizes its internal space structure. A variety of equipment can be installed in the buoy to meet monitoring requirements.

A recoverable constant-resistance large-deformation anchor rod structure comprises an anchoring section, an anchoring agent cartridge, an anchoring section conical head and an anchor rod, the anchor rod comprises an I-type anchor rod section and an II-type anchor rod section, and the I-type anchor rod section and the II-type anchor rod section are connected through an anchor rod body connecting sleeve. When a rotary connector of the sleeve pushing rotary rod rotates, the anchor rod body is driven to be connected with the sleeve, the I-type anchor rod section and the II-type anchor rod section. An octagonal sleeve upper connecting section of the anchor rod body connecting sleeve is connected with an II-type anchor rod section through threads on the inner wall of the octagonal sleeve upper connecting section, an octagonal sleeve lower connecting section is fixedly connected with an I-type anchor rod section through threads on the inner wall of the octagonal sleeve lower connecting section, and a middle separating section is used for separating the octagonal sleeve upper connecting section and the octagonal sleeve lower connecting section. The recyclable anchor rod can be recycled through disassembly and assembly after engineering is completed, the requirement for raw materials is reduced, sustainable utilization of resources is facilitated, the adverse effect on the environment is reduced, the recyclable anchor rod has high flexibility and can adapt to different engineering requirements, and due to the fact that the installation process of the recyclable anchor rod is relatively safe, the use risk is reduced.

The invention relates to the technical field of rock-soil slope reinforcement, in particular to a reinforcement device for a rock-soil slope. The device comprises a plurality of reinforcing anchor rods assembled on one side of a rock-soil slope, and reinforcing mechanisms are assembled on the inner sides of the reinforcing anchor rods. Through the structural design of the reinforcing mechanism, the stiffening mechanism and the limiting mechanism, the metal protective net can stably cover the rock-soil side slope conveniently, meanwhile, one end of a reinforcing anchor rod can be fixed to the inner side of the rock-soil side slope in cooperation with filler, the anchoring effect of the reinforcing anchor rod on the metal protective net is improved, and the service life of the metal protective net is prolonged. The reinforcing anchor rod is prevented from loosening when subjected to external scouring, the safety of the device is improved, the reinforcing anchor rod can be assisted to be inserted into the rock-soil side slope, meanwhile, the reinforcing anchor rod and the rock-soil side slope can be conveniently separated, and the operation efficiency during rock-soil side slope reinforcing construction is improved; and a second long stiffening rod, a third long stiffening rod and a second short stiffening rod are added into the filler, so that the tensile strength can be improved, and the integrity and stability of the structure are enhanced.

The utility model discloses a fixing fixture for an anti-floating anchor rod, and relates to the technical field of mechanical engineering, a second through column is arranged outside the anchor rod, a stable holding mechanism is assembled in the second through column, a power assembly is assembled in the second through column, the stable holding mechanism comprises a plurality of first connecting rods, and the first connecting rods are connected with the first connecting rods. The side end of each first connecting rod is fixedly connected with a second connecting rod, the side end of each second connecting rod is fixedly connected with a hinge block, the side end of the second through column is fixedly connected with a fourth through column, and the side end of each first column block is arranged at the side end of the fourth through column. According to the mechanism, the mechanical transmission principle is adopted, a traditional fixing clamp for the anti-floating anchor rod is improved, the stability of the traditional fixing clamp for the anti-floating anchor rod for fixing the anti-floating anchor rod is improved through an additional structure, when the hole diameter is too large, the anchor rod is inserted, the phenomenon of cavities or non-uniformity in the grouting process can be prevented, and the grouting quality and the anchoring effect are improved.

This invention discloses a microtexturing treatment and lamination process for the copper foil surface of a low-thermal-expansion high-frequency copper-clad laminate (CCL). Belonging to the field of CCL manufacturing technology, it solves problems in existing CCL technologies, such as the difficulty in balancing peel strength and high-frequency transmission performance, excessively high coefficient of thermal expansion, easy delamination between layers, and patent conflicts. This invention employs a combined plasma etching and chemical micro-etching process to prepare a honeycomb-like pit-column-protrusion composite microtexture on the resin-coated surface of the substrate copper foil. After modification with a fluorine-containing and aminosilane coupling agent and mixed passivation treatment, a surface-modified copper foil is obtained. This foil is then laminated with a low-thermal-expansion high-frequency prepreg containing linear polyarylamide through a segmented preheating, gradual pressure curing, and slow cooling and depressurization process to prepare the CCL. This invention features a simple process, conforms to industrial practice, exhibits excellent overall performance, effectively avoids patent conflicts, and is suitable for high-end fields such as 5G communication and AI servers.

The utility model belongs to prefabricated building technical field provides a kind of precast wall with embedded connecting piece, the precast wall with embedded connecting piece includes mounting plate, several screw sleeves and several hooking ribs, mounting plate is equipped with several mounting holes, one side is joint surface, joint surface is used to be combined with wallboard;Several screw sleeves are one-to-one corresponding with mounting hole, screw sleeve protrudes joint surface and mounting plate fixed connection through mounting hole;Several hooking ribs are spaced apart in the side of the joint surface of mounting plate, one end is fixedly connected with joint surface, and the other end is provided with a hook.The precast wall with embedded connecting piece provided by the utility model, the hook of hooking rib and concrete form mechanical engagement, avoid the integral displacement of connecting piece along screw sleeve axis direction;After screw sleeve and mounting plate fixed connection, the bolt tightening force borne by screw sleeve, wallboard splicing stress can be transmitted to hooking rib by mounting plate, then by hooking rib disperses to wallboard concrete, greatly improves the combination strength of screw sleeve and wallboard.

This application relates to the field of anti-buoyancy technology in building engineering, and particularly to an anti-buoyancy anchor construction process and an anti-buoyancy anchor, comprising: S1: preliminary preparation; S2: rod assembly; S3: hole drilling and enlarging, drilling a deep hole at a preset position, and after drilling to the target depth, performing end enlarging construction within the enlarged hole depth range to form an anchoring grouting zone; S4: anchor lowering, lowering the finished anchor to the target depth in the hole, at which time the enlarged bladder extends into the sediment at the bottom of the hole; S5: grouting operation, injecting grout into the enlarged bladder through a grouting pipe to expand the enlarged bladder and push the sediment at the bottom of the hole outward until the enlarged bladder is filled with grout, completing the grouting construction in one step, and completing the grouting construction of the gap between the anchor rod and the inner wall of the hole; S6: prestressing locking; S7: casting to obtain the anchor anti-buoyancy system; This application has the effect of reducing the possibility that sediment at the bottom of the hole will combine with the concrete mortar during the grouting process and affect the anchoring effect of the anti-buoyancy anchor.

The application discloses a kind of sensing optical cable surface laying methods, it is related to sensing optical cable technical field.The present application includes laying vehicle, laying vehicle top is fixed with unwinding frame and pad height chamber, pad height chamber top is connected with sliding table by ground rail, sliding table top linearly is equipped with distance measuring mechanism, drilling mechanism, support auxiliary frame and wire rack, drilling mechanism includes first lifting cylinder, first lifting cylinder telescopic end is fixed with motor, motor output end is connected with drill bit, support auxiliary frame includes hydraulic hammer and second lifting cylinder.The present application can be automatically opened in installation surface by the design of drilling mechanism, the design of support auxiliary frame can be positioned to Z type support with high stability, and hydraulic hammer can assist manual hammering expansion bolt, the design of wire rack can limit the position of optical cable, the whole anchoring process worker only needs to participate in hammer tool and hook tool, save time and effort, improve laying efficiency and can ensure laying safety.

The invention relates to the technical field of engineering materials, in particular to a pumpable water-resistant anchoring agent as well as a preparation method and application thereof. The anchoring agent is a two-component system, wherein a component A comprises a first sodium silicate solution, a second sodium silicate solution, a catalyst, a chain extender, a nano inorganic filler and a super-hydrophobic coupling agent; and the component B comprises an isocyanate substance, a plasticizer, hydrophobic isocyanate and polyether polyol. Hydrophobic components are introduced into a polyurethane curing network in a chemical bonding mode, a chemical crosslinking type water-resistant mechanism is constructed, and the long-term bonding strength retention rate and the impermeability of the anchoring agent in the underwater environment are remarkably improved by cooperating with the double effects of physical hole plugging and chemical hydrophobicity of the nanofiller subjected to hydrophobic modification. Meanwhile, by optimizing the component proportion and viscosity, the product has excellent pumpability, and is especially suitable for anchoring construction in wet or underwater environments such as deep tunnels and water conservancy projects.

The application relates to the technical field of building foundation construction, in particular to a prestressed anchor rod, which comprises a hollow anchor rod body, a backing plate, a connecting piece, a swelling shell anchoring piece and an exhaust pipe. The hollow anchor rod body is arranged in a rock stratum hole, the end of the rock stratum hole far from the hole mouth is an output end, and the other end is an input end. The swelling shell anchoring piece is arranged at one end of the hollow anchor rod body close to the output end. The connecting piece is detachably arranged at one end of the hollow anchor rod body close to the input end. The backing plate is arranged on the hollow anchor rod body, the connecting piece is pressed against the front surface of the backing plate, the back surface of the backing plate is pressed against the hole wall of the rock stratum hole, one end of the exhaust pipe is connected into the rock stratum hole, and the other end extends outward. A cement grouting layer is further arranged in the rock stratum hole. The prestressed anchor rod can meet the supporting capacity and improve the installation convenience.

The utility model discloses a novel anti-pulling anchor rod pile structure, which belongs to the technical field of pile foundations and is characterized in that a novel anti-pulling anchor rod pile is divided into an expanded anchoring section and a common anchoring section and penetrates through a central rod body of a pile body, and a sleeve is arranged outside the rod body. The expanded anchoring section is a connecting part of the rod body inserted into the reinforcing steel bar clamping groove disc and the umbrella-shaped reinforcing steel bar mesh A; the common anchoring section is a part where the rod body is inserted into the steel bar clamping groove disc and connected with the umbrella-shaped steel bar mesh B; the reinforcing steel bar clamping groove disc is fixed on the rod body through a nut; the steel plate A is fixed to the pile top through the high-strength nut, and the spring and the steel plate B are sleeved with the top of the rod body. And after the anchor rod pile is put down, the steel wires are adjusted, and the reinforcing mesh A and the reinforcing mesh B fill the expanded anchoring section and the common anchoring section in an umbrella shape. The anchor rod pile is simple in structure, and the pulling resistance of the anchor rod pile is improved by enlarging the pulling resistance of the anchoring section and the friction force between the common anchoring section and the soil body; the durability of the pile body is improved through the sleeve; applying prestress through the steel plate A; foundation steel bars are connected with springs, and the anchoring force of the pile and the foundation is improved.

The FRP rod type combined tie piece comprises a five-direction communicating structural piece, a reinforcing steel bar bolt and a fiber reinforced composite material rib, the five-direction communicating structural piece comprises two horizontal connecting pipes which are perpendicular to each other, and a vertical connecting pipe is arranged at the communicating point of the two horizontal connecting pipes; the two ends of the fiber reinforced composite material rib are inserted into the vertical connecting pipes of the two five-way communicating structural parts respectively and are fixedly connected with the five-way communicating structural parts in an inserted mode through the reinforcing steel bar plug pins, and the combined tying part is formed. In practical application, leaf plate steel bars of the sandwich thermal insulation wallboard directly penetrate into the two horizontal connecting pipes which are vertically arranged to form a binding-free three-dimensional steel bar net rack, and after concrete is poured, the pulling pieces and the concrete form a composite stress body through the occlusion effect of aggregate. In the building construction process, the construction efficiency is improved, the anchoring problem of the tie piece is solved, the overall mechanical property of the sandwich heat preservation wallboard is guaranteed, and the FRP tie piece has important significance for overcoming the defects of a common commercial FRP tie piece.

The utility model discloses a greenhouse wind -proof reinforcing support, the reinforcement frame is provided with the reinforcing frame in the upper portion and the lower portion both sides of front and back frame, the inside of reinforcement frame is fixed with the reinforcing strip of X type, reinforcement frame and reinforcing strip are screwed on every contacted frame, the lower extreme of frame both sides is fixedly connected with the connecting plate that extends outward, the lower extreme fixedly connected with longitudinal distribution reinforcing nail no.

A cofferdam anti-seepage structure and a construction method thereof, wherein the main rockfill body is located on the water-facing side of the river channel, the secondary rockfill body is located on the water-receiving side of the river channel, a concrete anchoring groove is provided on the riverbed between the main rockfill body and the secondary rockfill body, a composite geomembrane is anchored on the concrete anchoring groove and extends to the top of the cofferdam, sand cushion layers are filled on both sides of the composite geomembrane, and transition material cushion layers are filled on both sides of the sand cushion layer, the composite geomembrane, the sand cushion layer, and the transition material cushion layer are located in the secondary rockfill body, a watertight filling body is provided on the water-facing side slope of the main rockfill body, and connected block stone revetments are provided on the water-facing side slopes of the secondary rockfill body and the main rockfill body. The composite geomembrane can be installed when the river channel is cut off, the composite geomembrane is simple and convenient to install, and the cofferdam body has a good anti-seepage effect. It can reduce unnecessary engineering, thereby ensuring or shortening the construction period, and has the advantages of using local materials, reducing material mining, convenient construction, and low engineering cost.

The invention relates to the field of expansion anchor cables, in particular to a novel expansion anchor cable which comprises a base, a grouting pipe used for grouting is arranged on the base, a sliding part capable of moving during grouting is further arranged on the base, and an external expansion part capable of expanding outwards along with movement of the sliding part is arranged on the outer portion of the base. The sliding part comprises a grouting outer cylinder which is fixedly connected to the base and communicates with the grouting pipe, a grouting inner cylinder which is arranged in the grouting outer cylinder in a sliding manner, and a connecting rod I which is fixedly connected to one side of the grouting inner cylinder; the method has the beneficial effects that expansion of the anchor cable is completely pushed by grout during grouting, other mechanical devices are not needed for assistance, a special construction technology is not needed either, and actual use is facilitated.

The application discloses a kind of high polymer hybrid geopolymer composite anchoring materials and preparation method thereof, the anchoring material includes metakaolin, superfine blast furnace slag, red mud, silicon carbide fiber, silica fume, alunite, cellulose nanocrystal, nano-silica sol, silane coupling agent, isocyanate, polyether polyol.Preparation method is to carry out composite with the geopolymer system of metakaolin, superfine blast furnace slag, red mud and water glass composition with polyurethane nanometer material hybrid body, and add silica fume, silicon carbide fiber and a small amount of alunite, finally form a kind of high polymer hybrid geopolymer composite anchoring material with close and firm three-dimensional interpenetrating network structure system.The composite anchoring material;The addition of silicon carbide fiber and alunite effectively solves the bending resistance of geopolymer and shrinkage problem, so that the performance of composite material tends to be perfect.

The utility model relates to a plugging device which comprises a fixing part and a sealing part, the fixing part comprises a net-shaped woven structure and a plurality of wing parts extending in the radial direction, and the length of the wing parts extending in the radial direction at least exceeds one third of the radius of the whole fixing part. Compared with the design of a traditional fixing part with the outer side edge in a cylindrical state (namely, the section is a circular boundary), the multiple wing parts are formed on the fixing part of the plugging device and can be adaptively clamped into the grooves and the protrusions of the implantation area, the anchoring piece can abut against or penetrate into the surface of the implantation area in the corresponding area conveniently, and the plugging effect is improved. And better anchoring capability is obtained.

The utility model relates to the technical field of agricultural and grassland rodent control, and particularly discloses an isolation device for underground rodent control, which comprises a furrow, the furrow is dug and arranged around a control area, the L-shaped base extends horizontally inwards or outwards, a steel wire fence is fixedly installed on the outer surface of the frame, and the furrow is filled with backfill soil. The isolation device for underground rodent control is designed in the shape of the L-shaped base and blocks the steel wire fence in the frame, so that rodents can be blocked by the steel wire fence when digging holes in the ground, and the rodents can be blocked by the L-shaped base when digging downwards upon encountering the steel wire fence. Meanwhile, the L-shaped base, the frame and the steel wire fence are deeply buried in the furrow bottom 1.5 meters, which greatly reduces the crossing of rodents from the bottom of the control isolation device, greatly reduces the damage caused by rodents crossing the control area, and greatly improves the effect of preventing rodents.

The utility model discloses a connecting piece, a connecting assembly and a thermal insulation wall body comprising the connecting piece or the connecting assembly, which are applied to a non-combined sandwich thermal insulation wall body, and the thermal insulation wall body comprises an inner acanthus, a thermal insulation plate and an outer acanthus which are sequentially overlapped from inside to outside. Comprising a first part located in the outer acanthus, a second part located in the heat preservation plate and a third part located in the inner acanthus which are sequentially connected, and the first part and the second part are wrapped by a broken bridge material so as to avoid forming a heat bridge at the first part and the second part; the second part comprises two second connecting rods, and the two second connecting rods are connected with each other in a crossed mode. The outer sides of the first part and the second part are respectively coated with a layer of broken bridge material, so that a heat bridge can be prevented from being generated between the first part and the second part, and the energy-saving performance of the wall is improved. Meanwhile, compared with a traditional stainless steel connecting piece, on the premise that the same mechanical property can be achieved, the comprehensive steel consumption is reduced, the cost is lower, and carbon emission is reduced.

The utility model relates to the technical field of building construction, and provides a combined type detachable waist beam which is used for supporting a foundation pit wall, a first anchor rod hole and at least one first mounting hole are formed in the foundation pit wall, and the combined type detachable waist beam comprises at least two channel steel plates distributed up and down; the web is arranged on the side, facing the foundation pit wall, of the channel steel plate; a second anchor rod hole and at least one second mounting hole are formed in the web plate; the second anchor rod holes correspond to the first anchor rod holes, and the first mounting holes correspond to the second mounting holes; anchor rods penetrate through the second anchor rod holes and the first anchor rod holes; and the second mounting hole and the first mounting hole are used for penetrating through a fastener. According to foundation pit construction with different areas and different soil layer pressures, different numbers of channel steel plates can be adopted to correspondingly guarantee the overall bearing capacity of the waist beam, the area of a foundation pit wall can be fully utilized, unnecessary material waste is avoided, and universality is high.

The utility model relates to the technical field of danger removal of a danger water gate, and discloses a side slope protective surface reinforcing structure for danger removal and reinforcement of the danger water gate, which comprises a side slope, a side slope reinforcement cage is arranged on the slope surface of the side slope, a plurality of anchor cables are arranged on one side, close to the side slope, of the side slope reinforcement cage, each anchor cable comprises an anchor head, and a steel cable body is arranged at the top of each anchor head. A locking mechanism for preventing the steel cable body from being adjusted back is arranged on one side of the anchor head, the locking mechanism comprises a protective shell fixed to one side of the anchor head, a mounting groove is formed in the top of the anchor head, and rotating rods are rotationally connected to the two sides of the inner wall of the mounting groove. Under the action of the ratchet wheel and the pawl, the steel cable body can only move in one direction, and therefore stress loss caused by callback of the steel cable in the adjusting process is avoided. The stability and reliability of the anchor cable in the using process are guaranteed, the anchoring effect can be improved by effectively controlling the stress of the steel cable, and it is guaranteed that the structure is more stable under the load.

The utility model discloses a large-tonnage adjustable prestress carbon fiber plate anchoring device, and relates to the technical field of road and bridge reinforcement. In order to solve the problem that in the prior art, a carbon fiber plate anchoring device is poor in self-adaptive capacity, the carbon fiber plate anchoring device comprises an anchoring plate, a connecting piece, a mounting base and an adjustable prestress applicator. The anchoring plate is adjusted according to the size of the carbon fiber plate, the anchoring plate is connected with the mounting base through the connecting piece, the adjustable prestress applicator is arranged in the mounting base, and the force application end of the adjustable prestress applicator penetrates through the connecting piece in a sliding mode to adjust the prestress of the carbon fiber plate. The adjustable prestress applicator controls rotation of the rotating assembly through stretching and retracting of the telescopic rod, so that the push rod is pushed or pulled to slide in the sliding groove of the connecting piece, the prestress of the carbon fiber plate is adjusted, and the pressing piece is detachably connected to one end of the push rod. The pre-stress of the carbon fiber plate can be adjusted in real time through the adjustable pre-stress applicator, and the practicability of the device is enhanced.

The application relates to the technical field of medical devices, in particular to a heart atrial shunt device which comprises a lead-through part and first and second positioning bodies arranged on the two sides of the lead-through part respectively, and the lead-through part, the first positioning body and the second positioning body are integrally woven by a single braided wire. In the embodiment of the application, the heart atrial shunt device is integrally woven by the single braided wire without needing to process bulk wire heads, after installation, no redundant structure protrudes into the left and right atria, blood clots are not easy to form, the structure is simple, the size is smaller during contraction, and the damage to the access blood vessels during implantation is smaller.