The fastening element metal
The invention relates to a fastening member made of metal for anchoring in a drilled hole design details. The fastening element is made of metal contains rethimnou sleeve and axially movable on the rod bolt Rethimno body for anchoring in a drilled hole design details. The bolt includes at its front end emphasis, between which and the expansion body is inserted element, based on Rethimno body. Emphasis is made in the form of a widening body, which is under tensile load penetrates the spacer element made hiltebrand, and forms corresponding to the length of the spacer element zone of deformation. As a result, the fastening element, which would be able to put out a series of shock loads without failure of the anchor. 3 C.p. f-crystals, 2 Il. The invention relates to a fastening member made of metal for anchoring in a drilled hole design items according to the restrictive part p. 1 formula.From DE 3714025 C2-known fastening element of the above type containing rethimnou sleeve and Rethimno body that is axially movable on the rod bolts. The bolt has at its front end is made in the form of a flange emphasis and ventosa fixed on the subject of the nut on the bolt the latter moves in the direction of the mouth of the drilled hole, and Rethimno body by means of the coil spring is located between the stop and move the expansion body is pressed into rethimnou sleeve for anchoring in a drilled hole design details. Simultaneously, the coil spring slightly stretched, so that when extending the drilled hole in the fracturing Rethimno body is additionally pressed to compensate for the expansion of the drilled hole. Further, the known fastening element capable of absorbing shock loads, for example, due to the earthquake, and thereby to prevent pulling of the fastener or the breaking of the bolt.A disadvantage of the known solutions, however, that due to the additional indentation camshaft body in rethimnou sleeve axial distance between the expansion body and focus under certain circumstances, increases so that the coil spring then no longer Natuna, and in certain circumstances even has axial play. Because of missing support and tension camshaft body extra indentation camshaft body when extending the drilled hole due to the increase of the crack, such as selectelement, who would be able to put out a series of shock loads without failure of the anchor.The solution to this problem is achieved by the characteristics listed in paragraph 1 of the claims.Through the use of hiltebrand spacer element instead of the coil spring and is made in the form of a widening body of emphasis in acting on the bolt overload extend the body is drawn into the spacer sleeve. In the resulting strong friction during expansion and deformation of the spacer element, the latter is pressed against the axially movable on the bolt resinosa the body, which due to this slide into rethimnou sleeve. Since the spacer element does not come reflexive efforts saved arisen due to overload shortened the distance between the expansion and the expansion bodies and thereby tension camshaft body in Rethimno the sleeve after removing the load. When further subjected to shock loads only extends the body moves inside the spacer element further in the direction of the camshaft body, and clamping force on Rethimno body is retained by friction within the spacer element. The length of the spacer element defines the length of the deformation zone, the ü spacer element in the form of a closed sleeve of soft metal or plastic.The preferred form of the spacer element is longitudinally slotted spring sleeve, the expansion which occurs due to the widening of the body in the elastic range. It is advisable to perform a widening body in the form of a cone with the adjacent cylindrical collar.The fastening element according to the invention may be performed either in the form of a special anchor, which anchors Rethimno sleeve is on the site of the drilled holes with an increase in the internal diameter or bore of the anchor, in which the shank of the bolt extends after receiving rethimnou sleeve cut to diameter Rethimno sleeves.Examples of execution of the invention shown in the drawing, which shows: Fig.1 is a fastening element according to the invention in the form of execution in the form of an anchor with enlarged at one portion inner diameter; Fig.2 - the fastening element in the form of execution in the form of a bore of the anchor.Is depicted in Fig.1 the fastening element 1 contains rethimnou sleeve 2, are connected by an anchor by means of the camshaft body 3 in section 4 with a larger inner diameter in the drill hole 5 part 6 design. Having a through bore 7 times is located at the front end of the bolt 8 extending body 9 is hiltebrand spacer element, which can consist, for example, of a soft metal or plastic in the form of a closed sleeve. In this case, plastic deformation of the sleeve when pulling expanding body 9 through the spacer element 10. If the spacer element 10 is made in the form of spring-elastic sleeve with a longitudinal slot, then when pulling elastic deformation occurs, and the friction force is determined by the thickness of the walls of the spring sleeve. Bolt passing through the spacer element 10, Rethimno body 3 and rethimnou sleeve 2 has at its rear end the thread 11, which screw nut 12 to secure the object 13. When the screw nut 12 bolt 8 moves axially in the direction of the mouth of the drilled hole, so that penetrates the spacer element 10 extends the body 9 has on Rethimno body 3 shearing force. This shearing force presses Rethimno body 3 in shliovalnoy part Rethimno sleeve 2 and pushes it to the site 4 with a larger diameter. This results in a connection with a positive locking between the mounting item 1 and item 6 of the structure.If the bolt 8 there is shock, then extend the body 9 is sharply drawn in hiltebrand spacer element 10, creating dempfirovanie excessive loading a bolt, and concrete. Due to the length of the spacer element 10, as well as material and geometry extending body 9 and the spacer element can be coordinated with the zone of deformation with the relevant installation conditions. In the depicted example implementation extends the body 9 is formed by a cone 14 with the adjacent cylindrical collar 15.I is shown in Fig.2 examples of the implementation of the rod 16 of the bolt 8 extends immediately after receiving rethimnou the sleeve 2 by the length to diameter Rethimno sleeve 2. Thus, this fastening element 1A can be used in the installation pass, when the fastening element can be introduced through the fixed object 13 in the drilled hole 5. The spacer element 10 is made in this example in the form of a spring sleeve and the anchoring takes place in a cylindrical drilled hole 5.
Claims1. The fastening element is made of metal containing rethimnou sleeve (2) and axially movable on the stud bolt (8) resinae body (3) for anchoring in a drilled hole design details, and bolt (8) contains at its front end emphasis, between which and the expansion body (3) is the spacer element based on Rethimno body (3) different is soobrazhayu spacer element (10) and forms corresponding to the length of the spacer element (10) zone of deformation.2. Item under item 1, characterized in that the spacer element (10) is longitudinally slotted spring sleeve.3. Item under item 1, characterized in that the expanding body (9) is formed by cone (14) with the adjacent cylindrical collar (15).4. Item under item 1, characterized in that the rod (16) of the bolt (8) is expanded immediately after receiving rethimnou sleeve cut to diameter Rethimno sleeve (2).
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