559results about How to "Increase anchoring force" patented technology

An intracardiac device comprising a ring-shaped body and one or more anchoring or stabilizing elements attached to said body, said elements being selected from the group consisting of levered anchoring arms, elongate anchoring arms, and lateral extension elements, wherein said device is able to move between two conformations, a collapsed conformation suitable for insertion into a delivery catheter, and an open conformation, suitable for implantation at a cardiac valve annulus.

An object of this invention is to provide a radially expandable stent (1) that holds a passageway enlarged by placing the stent (1) into a lumen. The stent (1) comprises a cylindrical frame formed by a plurality of unit structures (11, 12, . . . 16, . . . ); said unit structures (11, 12, . . . 16, . . . ) formed into a closed zig-zag configuration including an endless series of straight sections (111) and joined by bends (112), and arranged face to face into a shape of multistage; connecting members (31, 33, 35, 37 . . . ), which connect said unit structures (11, 12, . . . 16, . . . ); and a mesh (91), which is wrapped around an outside of said frame.

The invention relates to a flexible umbrella supporting anchor bolt and a method for supporting a soil slope thereby. An end ring and an end circular connector are fixedly disposed at one end of a round anchor bolt. A spring circular connector and a middle ring are fixedly disposed in the middle of the round anchor bolt. A lower circular connector adjacent to the right side of the middle ring movably sleeves the round anchor bolt. A drag umbrella surrounding the round anchor bolt comprises reacting plates evenly arranged, pull rods and compression springs. One end of a flexible pull rope is fixed to a round hole arranged in the other end of the round anchor bolt. More than one flexible umbrella supporting anchor bolt is connected with a soil high slope protective structure, composed of a geogrid mesh, a vegetation protective layer and a retaining wall, through the flexible pull ropes, and a whole for firmly and reliably anchoring and protecting the soil high slope is formed. The umbrella reacting plates are connected with the protective structural mesh through the flexible pull rope, anchoring force is greatly higher than that of a traditional anchor bolt, anchoring effect is more reliable, and engineering cost can be decreased by 50-60%.

The invention relates to the field of building and is applicable to retaining walls. The reinforcing element is characterized in that it consists in connecting the back face of the facing to the strong zone by means of a plurality of reinforcing elements (5) disposed substantially horizontally in superposed planes, and in selecting said elements in such a manner that each of them comprises an anchoring portion that is included in the strong zone and that is constituted by a mesh comprising more than two longitudinal bars, of which only some extend as far as the facing to define a portion that works in traction, which portion has an attachment part for connection to the facing at its end remote from the anchoring portion.

The invention discloses an anchoring structure for a liquid-injection corrosion-resistant anchor rod or anchor cable and a construction method thereof. The anchoring structure comprises a resin end-anchored anchor rod or anchor cable body arranged in an anchor hole, wherein a grouting-stop plug is also arranged at the opening of the anchor hole; an anchor rod head or an anchor cable head is exposed out of the anchor hole from the plug hole of the grouting-stop plug; the grouting-stop plug is also provided with two plug holes; a liquid injection nozzle is inserted into one plug hole and chemical grout is filled into the anchor hole through the liquid injection nozzle; an exhaust pipe with two open ends is inserted into the other plug hole; a check-valve ball and a return spring are arranged in the liquid injection nozzle; a locking slot connected with grouting equipment is reserved on the peripheral surface of the liquid injection nozzle; the length of the exhaust pipe is equivalent to that of the end-anchored anchor rod or anchor cable; and exhaust holes are reserved on the peripheral surface of the exhaust pipe close to the bottom of a drilled hole. The anchoring structure solves the problem of sealing water and preventing corrosion of anchor rod holes at the positions such as an arch part and the like, not only can serve as permanent support, but also can serve as temporary support.

The invention relates to the technical field of tunnel and underground construction anchoring equipment, in particular to a self-propelled hollow slip casting anchor rod with a stress-measuring function and an operating method. The self-propelled hollow slip casting anchor rod with the stress-measuring function includes a rod body with a hollow structure, a self-propelled drill is connected at thefront end of the rod body, and the back end of the rod body is provided with a slip casting opening which communicates with an inner cavity of the rod body; and the rod body is further provided witha stress-measuring device and an anchoring structure which is close to the self-propelled drill. According to the self-propelled hollow slip casting anchor rod with the stress-measuring function, thestress-measuring device is arranged to combine the processes of drilling, anchoring and slip casting into the same construction process, and the anchoring can be achieved in short time; and stress conditions of all sections of the anchoring rod in the supporting process can be monitored, so that the supporting mechanism of action and the stress conditions of the anchoring rod under the various kinds of surrounding rock conditions can be known, and critical evidences and references are supplied to the research of design parameters for the anchoring rod, improvement of the construction techniqueand the surrounding rock failure mechanism.

The invention relates to a water sealing joint device of a large-depth underground continuous wall. The water sealing joint device consists of a water sealing connector plate and a rubber water stop; the water sealing connector plate comprises connector side plates connected in sequence, two arc shape plates, an H-shaped groove plate, an upper end plate and a lower end plate; the two arc shape plates are oppositely arranged in the middle at intervals along the width of a connector side plate, and the H-shaped groove plate is arranged in the middle between the two arc shape plates; the H-shaped groove plate has two opening ends, one end is fixed and connected with the two arc shape plates, and the other end is fixed and connected with the connector side plate; and the upper end plate and the lower end plate are arranged at the end parts of the two arc shape plates and the H-shaped groove plate. An opening slot is arranged at the middle part of the upper end plate and the lower end plate, and the rubber water stop is embedded in a gap between the opening slot and the opening end of the H-shaped groove plate. The connector side plate adopts a long strip shape thick steel plate, the upper end plate and the lower end plate adopt semi-circular steel plates, and the composite cross section of the two arc shape plates is matched with the shape of the upper end plate and the lower end plate. The depth of the opening slot of the upper end plate and the lower end plate is approximately identical to half of the width of the rubber water stop. The invention can improve the prior construction process, reduce the construction cost, and effectively improve the water sealing performance of the structure of the underground continuous wall.

Expanded and variable-diameter reinforcement cage of pouch bag, including axial rod, ring or ring plate and several vertical ribs, several ribs, ring-shaped fixer, ring or ring plate is perpendicular to the axial rod, and one end of several vertical ribs is in the circle The ring or ring plate is evenly fixed, the other end or the middle of each vertical rib is connected to one end of a rib, several vertical ribs surround the axial rod, and the other end of the rib is connected to the ring-shaped fixer, the ring-shaped fixer Fix or slide on the axial rod or pile foundation rod; there is an outer bag to wrap the bottom of several vertical ribs, at least the bottom of the bag is closed, and the bag at the bottom of the pile wraps several vertical ribs; the bag is equipped with at least A grouting port and a grouting port with a one-way valve.

The invention discloses a completely recyclable end support ground anchor, which comprises an anchor rod, an anchor rod sleeve and anchor flukes. The anchor rod is a straight rod with the lower end provided with disc-shaped flanges; the tubular anchor rod sleeve is sheathed on the lower part of the anchor rod; circular flanges are arranged on the bottom surface of the anchor rod sleeve; and upper ends of a plurality of anchor flukes are hinged on the outer edges at the lower ends of the circular flanges arranged on the bottom surface of the anchor rod sleeve. According to the invention, the end support ground anchor can be put into use immediately after being assembled and has a plurality of anchor flukes and large anchoring force, the assembly and the disassembly is fast and convenient, and the complete recycling of the ground anchor is not influenced even if collapse happens to the bottom of an anchor hole.

A separable self-drilling embedment anchor belongs to the technical field of water conservancy and ship ocean engineering, and comprises an anchor body with an internal hollow cavity, a propeller and a separating component, wherein the propeller is used for providing power to lead the anchor body to be automatically drilled into and embedded into the soil, and the separating component arranged on the propeller is used for connection and disconnection of the propeller with the anchor body. Connection and disconnection of the anchor body with the propeller are completed by the separating component. The anchor body can be embedded into the soil under the action of exciting force of the propeller and gravity, and when the anchor body is embedded with a certain depth, a catapult is started to generate jet impact to push the propeller out of the anchor body, the anchor body is embedded into a deeper position of a bed material, peripheral liquefied bed materials backfill the hollow cavity of the anchor body to enhance the anchoring force, and embedment of the anchor body and recovery of the propeller are finally completed. Therefore, the embedment depth and the anchoring force of the dynamic anchor are increased, operating efficiency is improved, and technological implementation is simple. The separable self-drilling embedment anchor is low in construction cost as the propeller can be recovered and reused, and is low in manufacture cost as the hollow cavity designed in the anchor body can be used for backfilling the bed materials.

The invention relates to a glass fiber reinforced gypsum product, which comprises the ingredients including gypsum powder, glass fiber, water reducing agents, retarding agents and water, wherein the glass fiber is short glass fiber with the length ranged form 1 to 3cm, and is uniformly distributed in the gypsum product. Because the glass fiber reinforced gypsum product of the invention adopts 1 to 3 cm of glass fiber uniformly and disorderly distributed in the gypsum product, the intensity and the toughness of each part of the gypsum product are enhanced, and the delamination structure is avoided. The invention also provides a method for preparing the glass fiber reinforced gypsum product, and special equipment for implementing the method.

The invention discloses a double-anchoring-section prestress anchor cable structure and a constructing method thereof. The double-anchoring-section prestress anchor cable structure comprises an inner anchoring section, a free section, an outer anchoring section and an anchor head part, wherein a steel strand penetrates through the inner anchoring section, the free section, the outer anchoring section and the anchor head part. The portion, located on the inner anchoring section, of the steel strand is attached to one section of the bottom of a drilled hole through a grouting body. The free section is arranged at the upper portion of the inner anchoring section. The anchor head part is arranged outside a drilled hole opening and fixed to the top end of the steel strand. The outer anchoring section is arranged between the upper end of the free section and the drilled hole opening. Grouting is conducted through three steps, the first step of grouting is ended in the middle of the free section B, the inner anchoring section is formed through fracturing grouting in the second step of grouting, and the third step of grouting is conducted on the outer anchoring section C after a grout body of the inner anchoring section reaches the age and the steel strand is stretched. Except that the portion, located on the free section, of the steel stand is free, the portions, located on the inner anchoring section and the outer anchoring section, of the steel strand are both attached to the grout body to form a double-anchoring-section anchor cable with the inner anchoring section and the outer anchoring section. The double-anchoring-section prestress anchor cable structure has the advantages of being advanced in technology, economical, reasonable, rapid in construction and the like, and is a novel slope strengthening technology with prospects.

The invention relates to a processing aid of polyolefine resin for food flexible packing, a preparation method and application thereof, and a modified polyolefine material used in the food flexible packing and adopting the processing aid. The processing aid consists of nano silicon dioxide and ethylene-vinyl acetate copolymer and is prepared through adopting a coprecipitation method. The processing aid can reduce the melt viscosity of polyolefine and obviously improve the processing performance of the polyolefine; and meanwhile, the processing aid increases the polarity of the polyolefine while improving the composite performance and printing performance of the polyolefine.

The invention discloses a self-drilling type spiral anchor rod and a construction process using the self-drilling type spiral anchor rod for grouting along with drilling, stirring and curing, which are suitable for support engineering of anchor-pulling slopes in weak soil regions. A paste outlet is arranged on a rod body of the spiral anchor rod, the front end of the rod body of the anchor rod is enclosed, a spiral vane is welded at the front end of the rod body of the anchor rod, and a stirring slice is welded behind the spiral vane on the rod body of the anchor rod. The construction process using the self-drilling type spiral anchor rod for grouting along with drilling, stirring and curing comprises the following steps of: injecting cement paste while drilling by rod body of the anchor rod, so that a paste body of the cement paste is ejected out of the paste outlet of the rod body of the anchor rod, mixing the paste body and a soil body cut by using the spiral vane on the front end, uniformly stirring the soil body and the cement paste by using the stirring slice arranged behind the spiral vane, forming an irregular anchor body after curing so that the anchoring force of the anchor rod is increased. Because the drilling and the grouting are integrated, the pressure influence of subsequent grouting on the side wall of a foundation pit is avoided; and meanwhile, the grouting pressure can be effectively controlled so that the grouting quality can be ensured.

The invention provides an active anchoring mechanism with the two-time drive function and relates to the active anchoring mechanism. The active anchoring mechanism aims at solving the problem that anchoring force is small after media are thrown into an existing anchoring mechanism due to the fact that an anchor tip in the existing anchoring mechanism can not be deformed. The large end of a step pushing rod is fixedly connected with a piston. A back taper is arranged inside the anchor tip and is arranged adjacent to the small end of the step pushing rod. An anchoring claw is fixed at the small end of the step pushing rod. Each stretching wing is installed on the large end of the anchor tip through each stretching wing pin, and a plurality of the stretching wings are arranged in a star-shaped mode. A thrust end cover is connected with the lower end of an expansion cylinder in a threaded mode. An anti-vibration pad is arranged on the upper end face of the thrust end cover. A piston body is arranged inside the expansion cylinder and connected with the expansion cylinder in a sliding mode. A plurality of blind holes are evenly distributed in the piston body along the radial direction of the piston body. A fire device is arranged on a fire connector. The outer wall of the upper end of the expansion cylinder is connected with a limiting ring in a threaded mode. The outer wall of a combustion room of an anchoring unit is in sliding connection with the inner wall of an end cover of the expansion cylinder. The active anchoring mechanism is applied to anchoring of landing devices and instruments and equipment under a micro gravity environment.

The invention relates to a steel bar anchor device and relative method, which is formed by connecting anchor plate and the end part with rib steel bar. Wherein, the anchor plate is in head-shoulder integrated shape, while the insert end of shoulder is a plane and the head is in screw cap shape or nut shape. The center of anchor plate has an inner screw matching the external screw of said end part. The anchor plate can be classified into two kinds as full-anchor plate and part-anchor plate, according to the ratio between the area of bearing plate and the section area of steel bar, which can be used in different areas to reduce adhesive anchor length or fully eliminate the length. The invention can reduce 40-50% of anchor steel material, to improve the concrete irrigate quality, the constructing speed, reduce the cost and simplify the process.

The invention relates to the technical field of a support facility for the rock, earth and mining engineering, in particular to an expansion anchor rod. The expansion material of the anchor rod adopts a high-elasticity high molecular material, or a compound intensified material made of the steel wire or fibrous material and the high-elasticity and high molecular material or the thin corrugated metal sheet. The expansion body of the anchor rod has a hollow structure; the hollow part is a pressure cavity for injection, one end of the cavity is sealed and an introduction valve and a tube orifice anchor head are closely arranged at the other end ; an expansive force transfer layer is sleeved around the outer edge of the expansion body of the anchor rod and an anchor layer is sleeved around the outer edge of the expansive force transfer layer to form the expansion anchor rod. The expansion anchor rod additionally has the advantages of the rigid anchor rod on the base of keeping the application effect of the flexible injection bolt. The anchoring force is reliable and is easy to be adjusted, supplement and reclaimed; the creep resistance is strong and the anchoring effect is not affected if the geotechnical or the hole wall has honeycombed crack or collapse of artifices; also, the anchor rod is high in strength, low in cost, wear-resistant and is easy to be processed and manufactured.