The invention relates to the construction and installation works and can be used for attaching various items to concrete or brick walls, ceilings. Spacer dowel for fixing in the construction details contains rethimnou sleeve, a threaded rod passing through the sleeve, the front end of which is thrust cone for involvement in rethimnou bushing, washer and screwed on the threaded rod nut. Razina sleeve is made of a composite of two or three equal parts, which are glued together. As a result, thrust dowel, convenient installation and simple design, for the manufacture of which does not require expensive tooling. 2 C.p. f-crystals, 2 Il.The invention relates to the construction and installation works and can be used for attaching various items to concrete and brick walls, to the ceiling.It is known device for securing objects on a concrete or stone pieces with a hole. The device includes a threaded rod at one end and at the other end of the rod is made in one piece with the spacer cone having evenly spaced apart longitudinal ribs. The device also soma cone, and screwed on the rod nut. The edges of the rod are associated with slots spacers and act as on its external surface, and over close to her on the diameter of the large base spacer cone (see RF patent № 2104414, CL F 16 13/06).The disadvantage of this design is the need of plugging the device in precise diameter hole using a percussion instrument.Closest to the proposed solution is thrust dowel for fixing in the construction of the part containing rethimnou sleeve, with a few extending from its front input end and passing through part of its length of the slots forming the expanding legs, as well as the crimping zone, adjacent to the slots and formed with notches, and a threaded finger passing through the bushing on the front end of which is thrust cone for retracting provided with slots in part Rethimno sleeve, with longitudinal slits to pass grooves lying closest to the front end Rethimno sleeve. For education zone crimping Razina sleeve has a semilunar notch located in circumferential and axial directions at a distance from each other. The ends of the grooves facing in the axial direction to each other and piehler No. 2110703, CL F 16 13/06).The disadvantage of this anchor design is the complexity Rethimno sleeve, and greater complexity of its manufacture.The basis of the invention the task to create a spacer dowel convenient installation and simple design Rethimno sleeves for the manufacture of which does not require expensive equipment.The problem is solved by the fact that the spacer dowel for fixing in the construction of the part containing rethimnou sleeve, a threaded rod passing through rethimnou sleeve, the front end of which is thrust cone for involvement in rethimnou bushing, washer and screwed on the threaded rod, nut, and she Razina sleeve made of composite and consists of two equal parts that are glued together or on the outer surface of the bushing screw a thin plastic film, or on the outer surface of the sleeve has one or more thin PVC rings.The invention is illustrated by drawings.In Fig.1 shows a spacer dowel for fixing in the construction of the part containing rethimnou sleeve 1, the threaded rod 2 passing through the sleeve 1, the front end of which is thrust cone for the top 4. Razina sleeve 1 consists of two or three equal parts, which are either glued together or on the outer surface of the bushing screw a thin plastic film, or on the outer surface of the sleeve has one or more thin PVC rings.In Fig.2 shows the spacer dowel enshrined in the construction details. To secure the plugs is inserted in the hole 5 is drilled in the building part 6, so that the nut with its washer 3 adjoined to the outer surface of the construction details 6. By tightening the cone in rethimnou sleeve 1 glue (thin priatelia film or thin PVC ring) is broken and part of the sleeve opens, on the one hand, radially outward and at the same time, if there are leaks between the construction part and the washer 3, Razina sleeve is tightened.
Claims1. Spacer dowel for fixing in the construction of the part containing rethimnou sleeve, a threaded rod passing through the sleeve, the front end of which is thrust cone for involvement in rethimnou bushing, washer and screwed on the threaded rod nut, different t 2. Spacer dowel under item 1, characterized in that on the outer surface of the bushing screw a thin plastic film.3. Spacer dowel under item 1, characterized in that on the outer surface of the sleeve has one or more thin PVC rings.
FIELD: mechanical engineering.
SUBSTANCE: proposed expansion anchor contains main member driven into drilled hole and provided with expansion section expanding in direction of anchor driving. Main member of anchor is provided with through hole. Expansion anchor contains also expansion bushing fitted for sliding along axis on expansion section and expanding in process of displacement. Expansion bushing encloses expansion section from front side in direction of driving in of expansion anchor and overlaps through hole in main member. Displacement of expansion bushing is done by impact loading along axis.
EFFECT: low cost, simple design, ease of manufacture, provision of residual property for further expansion.
9 cl, 4 dwg
FIELD: devices for fastening or securing constructional members.
SUBSTANCE: expansion anchor comprises expansive bushing and stay bolt for expanding bushing of the anchor. The stay bolt has thread whose back edge is angled by about 45° or less to the axis of the stay bolt. The bolt thread pitch is large and approximately equal to or greater than the inner diameter of the bolt thread. At least one section of the bolt turn has the edge which prevents the stay bolt against unscrewing from the bushing of the anchor and arranged along the axis of the stay bolt and radially to the stay bolt and points to the direction of the unscrewing of the stay bolt.
EFFECT: enhanced reliability.
9 cl, 6 dwg
FIELD: invention refers to strengthening element for fixing in short, not under core hole, mode and adjusting instrument for fixing similar strengthening element.
SUBSTANCE: mentioned strengthening element has rod, which on one end has thrust cone, which expands in direction to rod, and non-split, tubular clenched bushing through which rod passes and which for expansion and fixing in blind hole is fulfilled with possibility of its pulling on thrust cone so, that it expands in face field turning to thrust cone. Hollow conic expansion of clenched bushing has more sharp conic angle then thrust cone. Mode of fixing of strengthening element in opening is in that clenched bushing is pulled on thrust cone by way of transfer on clenched bushing of vibrating movements in ultrasound diapason of frequencies. Fixing with such mode is light and lightly loads the place of fixing. Adjusting instrument for strengthening element has central rod entering into axial opening of thrust cone at installation on face side of clenched bushing. At that adjusting element has tubular rim circling around central rod for installation on face side of clenched bushing. External diameter of rim is no larger then external diameter of clenched bushing.
EFFECT: increases reliability of strengthening.
13 cl, 13 dwg
SUBSTANCE: dowel contains rod with longitudinal central opening and having remote and spacing zones. In rod spacing zone two longitudinal grooves are located that separate spacing zone into two halves. On external surface of rod spacing zone along its length in diametral planes annular grooves are arranged. On internal surface of rod spacing zone longitudinal blind grooves are provided. Annular grooves of one half of rod are displaced in relation to its second half, and mentioned halves are connected between each other with links.
EFFECT: increase of dowel bearing capacity in relation to axial and transverse operation loads, simplification of dowel installation.
4 cl, 9 dwg
FIELD: machine building.
SUBSTANCE: invention relates to machine building, particularly to rivet-type fasteners. The proposed device comprises a sleeve with head, pin element with a head, stem, fastening section furnished with annular grooves receiving the aforesaid sleeve with head to be pressed therein in assembly and a breaking groove made ahead of the said stem. For an adequate fastening of the aforesaid sleeve with head on the said fastening section, the latter is furnished with a thrust annular element and circular groove. The said sleeve free end features a stepwise bending element to be fitted in the aforesaid circular groove so that it rests upon the thrust annular element. The sleeve inner channel is in direction from its head, and the stem represent truncated cones. The stem surface can be either rough or notched.
EFFECT: higher reliability.
2 cl, 4 dwg
FIELD: engineering industry.
SUBSTANCE: invention refers to engineering industry, and namely to riveting fastening devices. Riveting fastening device includes a bushing with a cap, which has a crimp section, a pin element with a head, a shank, and attachment section to fix the bushing with a cap thereon under action of crimp force when assembling a riveted joint. Thread is made on the surface of pin element covering the attachment section zone and on internal surface of bushing with a cap. On attachment section surface there made are grooves to arrange some material of the bushing therein under action of crimp force when assembling the riveted joint. Cross section of the shank is made in the form of a polygon to be fixed during riveted joint assembly, and to exclude rotation thereof when screwing the bushing with a cap on the threaded section of pin element.
EFFECT: improving reliability of the riveting fastening device as well as the whole riveted joint.
2 cl, 7 dwg
FIELD: construction industry.
SUBSTANCE: invention refers to heat insulation and namely to fastening devices and can be used for fixing heat-insulating materials on concrete surface and brick masonry. Expansion drive dowel consists of a nail with a head, an expansion sleeve, and a dish element. Head is equipped with a core. Dish element includes a clamp plate and a hollow guide part provided with a metal washer. Pin is made from polymeric composite material of one-directional reinforcement with an annular reinforcement winding forming the shaped nail surface. The core contacts polymeric composite material of one-directional reinforcement in non-detachable way. Nail head is located in hollow guide part of dish element with a gap.
EFFECT: achieving reliability of the attachment, manufacturability, and simplifying the dowel erection.
5 cl, 2 dwg
SUBSTANCE: invention relates to elements for fixation of insulating panels on bearing base. Holder of insulating material for fixation of insulating panels to beating base, with bushing-like holding rod that pierces insulating panel. At its end there is a holding disk shaped as covering outer side of insulating panel on top. It consists of two parts and is made with the possibility of entering into holding rod with stop anchor, which comprises anchor, anchor extension piece and connection device, which connects anchor extension piece and anchor. Connection device combines anchor extension piece and anchor without possibility of slippage. Specific connection device is formed by transverse rib arranged on anchor extension piece or on anchor and transverse groove that responds to it as arranged in anchor or accordingly on anchor extension piece. At the same time transverse rib and transverse groove are oriented in longitudinal direction of anchor and anchor extension piece.
EFFECT: development of insulating materials holder, which eliminates heat bridges, is easily mounted and requires less costs in manufacturing.
8 cl, 5 dwg
FIELD: machine building.
SUBSTANCE: invention refers to a device for mechanical connection of at least two parts by a rotary axis. The device is made so that it can extend in the longitudinal direction into coaxial channels made in two parts which are pivotally coupled, the device comprises: a cylindrical casing including an end section provided with a longitudinal groove, in the longitudinal direction the cylindrical casing comprises a cylindrical channel prolonged by the channel of truncated cone shape which is extending into the end section aimed at the location of a part in the channel; an insert in the form of a truncated cone, the insert comprises a threaded hole extending in the longitudinal direction at the location of the insert in the channel of truncated cone shape; and a screw with a threaded end able of interacting with the threaded hole of the insert by screwing, providing for the fixation of the cylindrical casing in the channel and creation of a rotary joint around the axis.
EFFECT: simplified connection of parts by a rotary axis.
10 cl, 14 dwg
SUBSTANCE: invention relates to the dowel for crumbling supporting material. Dowel comprises the supporting ring made of metal sheet workpiece, end and the expandable tubular body with expandable means between the ring and end, designed with possibility to accommodate the element for attachment of part to the supporting mechanism and in order to expand the body and dowel anchoring in the supporting material. Expanding means comprise a tubular body portion, which is partially carved in order to form cutting after spiral folding of the workpiece, and means of partially carved portion of tubular body, providing continuity of cutting.
EFFECT: improving the quality of dowel cutting.
7 cl, 7 dwg