摘要:
A mounting assembly includes an expansible anchor having a threaded bolt, an expansible sleeve, and a shank member having an internal thread that enables the shank member to be screwed onto the threaded bolt to provide for expansion of the expansible sleeve over the expander body of the threaded bolt. The mounting assembly also includes a mounting tool adapted to be clamped in a drill chuck of an impact drilling machine and the like and having an end portion shaped like a polyhedron for engaging the internal bore of the shank member which internal bore has a diameter that is less than the diameter of the internal thread.The internal bore and the polyhedron end portion has lateral faces and edges such that, when the mounting tool clamped is engaged with the internal bore and the drill operated, the shank member rotates with the mounting tool until the installation is complete.
摘要:
An anchoring plug for anchoring objects to a support structure includes an expansible sleeve, an expander body driven into the expansible sleeve and a screw for driving the expander body into the expansible sleeve. A ring-shaped spring member, which forms a bearing for the expansible sleeve, is positioned at the trailing end of the expansible sleeve. The spring member has the external diameter greater than that of the expansible sleeve and, may due to its properties be compressed to the external diameter of the expansible sleeve.
摘要:
A spreading plug for anchoring in undercut boreholes comprises a plug shaft, a spreading body connected with the plug shaft, a thread connecting the spreading body with the plug shaft, a plurality of spreading segments which are spreadable over the spreading body, the spreading body having an end side, a safety element projecting from the end side of the spreading body for preventing rotation, the spreading segments being formed on the plug shaft and extending in direction toward the spreading body, the plug shaft having a mounting part facing away of the spreading body, and an element for cooperating with a rotary tool and provided on the mounting part of the plug shaft.
摘要:
An anchoring bolt including an expansion sleeve and an expander member insertable into the sleeve to expand the latter. The anchoring bolt has an inner thread at the end which faces the end face of the wall of the supporting structure to which an object is to be fastened by the anchoring bolt. A removable spacer is inserted into the borehole of the supporting structure after the anchoring bolt and is engaged with the inner thread thereof so as to determine a distance between the end of the inserted anchoring bolt and the end face of the supporting structure. This distance corresponds to the distance that the expander member is to be drawn into the expansion sleeve.
摘要:
A method for preventing corrosion of an expandable mounting element which involves introducing a sealing composition into a mounting hole of a support structure first to fill the hole about half-way, then driving an expandable mounting element into the half-filled hole to displace the sealing composition initially against the base of the mounting hole and then up along the surface of the expandable mounting element until the excess emerges out of the mounting hole. A compressible impact device, which has an upper and lower part and a spring part fixed therebetween, is arranged so that an impact tool can be driven against the upper part to fully drive the expandable mounting element into the mounting hole, effecting a sealing compaction in correspondance with the pressure exerted by the spring part. All gaps and cracks are thereby sealed against corrosive media.
摘要:
A fastener for anchoring in a bore in a bone has a screw having a substantially cylindrical outer surface formed with a helical screwthread. This screw has at its screwthread a thread diameter and between the turns of the thread at the surface a root diameter smaller than the thread diameter. A synthetic-resin anchor sleeve of a resilient fitted in the bore is of an outside diameter corresponding generally to the diameter of the bore and has an outer end formed with an outwardly open polygonal-section recess, an inner end formed with an inwardly open and transversely throughgoing slot, an outer end portion of an inside diameter greater than the root diameter but smaller than the thread diameter, an inner end portion of an inside diameter smaller than the root diameter, and an external helicoidal screwthread extending about two-thirds of the length of the sleeve from its inner end toward its outer end.
摘要:
The disclosure relates to an expansion pin consisting of a shank which at one end is provided with means for securing articles and at the other end is provided with a point. In order to obtain an anchoring having further expansion effect, the shank has an aperture in the form of a slot in which there is inserted a plastically and/or resiliently deformable insert which thickens the shank of the expansion pin in the region of the slot.
摘要:
A high-pressure packing device for injecting hardenable synthetic resin into cracks in concrete includes a sleeve of plastics to be wedged into a hole drilled in concrete in the region of the crack and an injection needle attached to the sleeve. The outer surface of the sleeve is formed with grooves starting from the front end face of the sleeve and extended axially of the sleeve to permit the synthetic resin injected into the base of the hole through the sleeve to rise along the grooves towards the crack in concrete to seal the crack.
摘要:
A method of securing a double-wall panel having a plurality of hollow chambers to a substructure of a greenhouse or the like, which has a number of crossing rods. A number of clamping devices spaced from each other are mounted on the transversal rods of the substructure. Each clamping device includes a hooked anchor inserted into the wall of the panel and a U-shaped clamp connected to the anchor and placed over the transversal rod. One clamping device is positioned on the rod in the center of the lower wall of the panel and is secured to that wall to produce a central anchorage, which is immovable in all directions. Two lateral clamping devices are positioned on the same rod at each side from the central clamping device. The U-shaped clamps of the lateral clamping devices are placed over the rod with play.
摘要:
The fastening device of the present invention is designed as a dowel which can be anchored in brickwork by a screw, a nail or similar anchoring means. The dowel has a tubular body extending from the brickwork at one end and is provided with a holding device at the other end. The holding device then supports a wire grating at a fixed distance from the brickwork surface. The wire grating acting as a means for support for the plaster applied to it.