The device to prevent unauthorized loosening the bolt
(57) Abstract:Usage: connecting parts to prevent them from unauthorized disconnection for mounting an automobile wheel. The inventive device consists of a head and a threaded portion, and the shape of the head is made conical and has on the surface in the upper part of the thrust collar. The key for unscrewing made in the body from becoming jammed profile surface on its inner surface. Inside mounted rollers. 4 Il. The invention is intended for the connection of the parts to prevent them from unauthorized detach and can be used for mounting an automobile wheel.It is known, the device to prevent unauthorized loosening of the bolt. Known bolt is made with a head having an annular groove. The key to fixing bolt made in the form of housing, the inner surface of which has becoming jammed profile plots. Inside the housing is installed in the annular groove of the rolling elements in the form of balls. Installed inside the case of a cylindrical sleeve with openings for the balls.Disadvantages are excessive intensity and slozhnosti.While the claimed design ensures the decrease of metal and simplification of the device as a whole.In Fig. 1 presents a longitudinal axis of the section of the bolt with the wrench; Fig. 2 section A-A of Fig. 3 the longitudinal axis of the incision with the option key, and Fig. 4 a section along B-B.For operation of the bolt provides for the use of the key, made in the form of the body, interacting with the conical surface of the bolt head. Bolt to prevent unauthorized loosening has a head 1, formed by a conical surface 2 and the end flange 3, and the key is made in the form of housing and contains a sleeve 4 and rollers 5. On the inner surface of the body is becoming jammed profile surface for engagement with the rollers. In the production version of the key in its composition, in addition to the sleeve 4 and rollers 5, includes a clamp 6, formed by spring-loaded segments 7. The conical surface 2 of the head 1 is performed with the cone angle equal to or slightly greater angle of friction, the outer surface of the head has an increased hardness.Device for connecting parts is as follows. For screwing and tightening the cylinder 1 bolt set key with free predenisolone key with rollers 5 has a cylindrical shape and clamp with the outer surface of the cylindrical form on the cylinder head 1 bolt, the cross-section of which will correspond to Fig. 2, if you think of the clip and the head 1 as a whole (Fig. 2), the key can be used and one for screwing with time and for unscrewing, inserting the sleeve 4 with the rollers 5 on the clamping head 1 one side or the other.When rotating the head 1 bolt key with some time the rollers 5 or segments 7 biased by the sleeve 4 to the conical surface 2 and kept it from sliding thrust flange 3, providing adhesion of the key cylinder 1 through becoming jammed action.Head 1 bolt, screwed with enough time, you can Unscrew only the key dimensions of the internal elements which match the dimensions of the conical surface 2 of the head 1. The use of any other clips or key, the body of which has on the inner surface dimensions, profile becoming jammed surface (tilt angle and covered in diameter), not quite matching the dimensions of the conical surface 2 of the head 1, may not provide sufficient adhesion to the cylinder 1 and the transfer to it of torque for unscrewing.The inventive device for connection details in comparison with the prototype to simplify the design and significant moments for bolts. The device to prevent unauthorized loosening the bolt with the key in the form of a housing, in which the rolling elements to interact with becoming jammed profile surfaces on its inner surface and the thrust surface of the head of the bolt, wherein the bolt head is made with conical end cap having mentioned the hard surface and rolling elements made in the form of rollers arranged with the possibility of contact with the conical surface of the bolt head.
FIELD: mechanical engineering.
SUBSTANCE: part joint comprises connecting member that enters linear opening made in the parts. At least one end of the connecting member is made for permitting it to project out of at least one of the members. The separating member is mounted for permitting rotation between the members. The locking member is provided at the second end of the connecting member. The flexible separating member is interposed between the members for freely rotation around the connecting member.
EFFECT: enhanced reliability.
6 cl, 4 dwg
FIELD: technological processes.
SUBSTANCE: method of fixation of screws or bolts that are installed in a row in a circle on shaft or casing includes screwdriving of screws or bolts in threaded openings. Screws or bolts are screwed in casing or shaft in line in a circle, while the joined parts are being pressed to each other. Then section of heat shrinkable plastic pipe is installed with clearance above screw or bolt heads, fully covering them, and then this section is further heated along the whole circuit with hot air until it tightly shrinks and embraces casing or shaft together with screw or bolt heads.
EFFECT: fast fixation of screwed fastening element and its reliable protection against dust ingress and corrosion.
SUBSTANCE: proposed locking device comprises fixed member attached to one of the members to be coupled on the side of coupling assembly, movable member arranged to move relative to the said fixed part, space receiving aforesaid section and push-back mechanism. Aforesaid space is arranged inside said fixed and movable members. Fixed member represents internal sleeve while movable member makes external sleeve, both being concentric. Aforesaid push-back mechanism represents a helical spring which, in case said coupling assembly gets disintegrated, releases to move aforesaid movable member relative fixed member to lock aforesaid coupling assembly section in aforesaid space.
EFFECT: ruling out parts drop-out in coupling system disintegration.
13 cl, 7 dwg
FIELD: engineering industry.
SUBSTANCE: invention refers to engineering industry. Locking bolt is made of the main standard bolt. Main hole is made along the main bolt axis in its head and in its threaded body, and additional hole of smaller diameter is made in the face end of its threaded body. Main hole is equipped with metric thread whereon there screwed is expansion bolt having a hexagonal head and a body with metric thread, and face end of expansion bolt body is taper. Through radial slots are made along the threaded body of the main bolt on face end thereof along the axis. Spring washer is installed under expansion bolt head and held down to flat surface of the main bolt head. For taper end face of expansion bolt there provided is a stop against transition edge of the additional hole in threaded body of the main bolt, thus ensuring release of sector segments of the main threaded body, which are formed by its slots. Expansion bolt head flats are covered with hexagonal hole flats of washer with many flats; one side of that washer is held down to flat end surface of hexagonal head of the main bolt. Diameter size between interfacial angles of washer with many flats and diameter size between interfacial angles of hexagonal head of the main bolt are equal. Working thickness of washer with many flats is bigger than that of spring washer. A heat shrink tube or a cap is installed above the flats of the main bolt head and flats of washer with many flats and held down tightly by means of thermal shrinkage.
EFFECT: providing locking reliability.
3 cl, 5 dwg
FIELD: machine building.
SUBSTANCE: locking bolt for fastening in blind hole is made from main bolt with standard hexahedral head, treaded rod with main thread on external cylindrical surface, through axial hole with additional thread. Additional thread is made from butt side of main bolt threaded rod on length not longer that diametre of threaded rod of additional bolt, on which locking threaded element is installed, made in form of said additional bolt with hexahedral head, whose threaded rod is longer than threaded rod of main bolt. Between head of additional bolt and flat surface of main bolt head on threaded rod of additional bolt spring washer is installed and tightened. Sides of additional bolt head are enveloped by sides of hexahedral hole of polyhedral washer, one side of which is tightened to butt flat surface of hexahedral head of main bolt. Diametral size between interfacial angles of polyhedral washer and diametral size between interfacial angles of hexahedral head of main bolt are equal. Operational thickness of polyhedral washer is greater that spring washer thickness. Above sides of main bolt head and sides of polyhedral washer thermocontractable tube or cap is installed and rigidly tightened.
EFFECT: increasing reliability of locking.
2 cl, 5 dwg
FIELD: drilling machine.
SUBSTANCE: invention refers to attaching points and attaching methods with these points. The attaching point includes bolt which has first and second ends, head (2) located at the first end and core, at least part of which has thread, nut (12) used for threaded connection with bolt core and pin for installation and aligning of the pattern. The head (2) of the bolt has plug (27, 28) for connection with corresponding plug provided at the pin for installation and aligning of the pattern. The method of attachment of assembly units includes holding of assembly units in the position in which the holes of units are conjugated accurately with the help of the mentioned attachment point, fastening of bolt and nut of the attachment point given the insertion of the bolt through the correctly conjugated holes and connection of the pin for installation and aligning of the pattern to the bolt head.
EFFECT: attachment point can be easily adjusted both for the pattern and automatic drilling machine.
14 cl, 6 dwg
FIELD: automobile production.
SUBSTANCE: antitheft locking device includes a threaded part, a retaining part intended for installation on an object that is to be fixed, and a drive part intended for introduction into a wheel well, which allows transmitting the tightening or weakening torque to the threaded part by means of a wrench, etc. Connection of the wrench, etc. to the drive part is performed by means of matching grooves on the drive part and the wrench, etc. The drive part includes a cylindrical pin passing along the axis, and an insert in the form of a sleeve having the above grooves on the outer side. The insert is installed along the axis with the force on the cylindrical pin to take up the first position of use with possibility of taking up the second position of use, in which it is inserted deeper on the cylindrical pin; and with that, the insert is connected at rotation to the cylindrical pin by means of friction means. The cylindrical pin and the insert are made so that in the first position the friction means can arrange the transfer of the tightening or weakening moment, and in the second position the friction means cannot arrange the transfer of the tightening or weakening moment.
EFFECT: absence of possibility of unauthorised breaking of this device.
6 cl, 5 dwg
SUBSTANCE: container includes recording device including body consisting of two electrodes one of which is made with shaped end part for integration with container. The electrodes are separated by dielectric insert and form capacitive sensor sensing element electrically connected with located inside the body and interconnected power supply, winding of inductive communication interface and electronic unit for measurement of sensing element capacity, data processing and storage. On the body of recording device, protective cap is installed to prevent interference attack on capacitive sensing element. Due to exclusion of moving parts from sensing element design, temperature dependence of recording device is lowered, its operational characteristics are improved.
EFFECT: protection against unauthorised access.
3 cl, 7 dwg
SUBSTANCE: screw with captive parts is made in the form of a body with a threaded part on one end, with a head on the other end and with a plain part on the body between the threaded part and the head of the screw; it includes a packing and spring washer and a sleeve, and the plain part of the screw has a diameter equal to an arithmetic mean value of average and inner diameters of the thread. The sleeve is provided on one of its edges with an annular flange, the diameter of which is larger than that of a hole made in the part or an assembly unit, which is intended for installation of the screw. Outer diameter of the sleeve without any annular flange corresponds to inner diameters of packing and spring washers. Inner diameter of the sleeve is made so that free passage of the threaded part of the screw is provided through it. A slot is made on the sleeve in a longitudinal direction along the symmetry axis. On the sleeve symmetrically to the slot on the side opposite to the annular flange there are two mouldings of a spherical shape, which face with their projecting parts inside the sleeve so that distance between them is equal to the average diameter of the screw thread. Length of the sleeve to the annular flange is equal to total thickness of the part through which the screw passes, thickness of the packing washer and half thickness of the spring washer. Length of the threaded part of the screw is equal to distance from the annular flange of the sleeve to the mouldings of spherical shape.
EFFECT: simpler installation method of screws with captive parts.
FIELD: machine building.
SUBSTANCE: invention relates to devices for safety of wheeled vehicles. Safety device includes a base with upper and lower portions, the nut cap rotating in clamped together with the base and projecting beyond the upper edge of the base, indicator nut rotating coupled with the nut cap and adapted to rotate together with the nut cap, indicator nut rotating, located under the lower part of the base, signaling a hole in the ground next to the female head, wherein by rotation of the cap nut rotation of the indicator is made available for viewing through the hole signaling. To lock the rotation of the nut in the composition of the structure a hard wall may also be provided.
EFFECT: as a result stability and security in the more demanding applications is ensured.
21 cl, 14 dwg