3104results about "Bolts" patented technology

A fastener assembly includes a shank having a threaded portion for guiding the fastener assembly into a correspondingly threaded portion of another fastener or a working surface and a head engaged with the shank for receiving a tool. The head defines a cutout for receiving an insert. The insert includes a housing for being fit into the cutout to secure the insert to the head and a compressible fastener plunger defining a recess for receiving a working end of a tool. The compressible fastener plunger is configured for translation within the housing along a longitudinal axis. The housing interferencingly engages the compressible fastener plunger to limit upward movement along the longitudinal axis.

The present disclosure provides a tolerance compensation fastening assembly for fastening a second part to a first part by cooperating with a nut element provided on the first part. The tolerance compensation fastening assembly comprises a bolt, a compensation element, a connection element, and a holding means. The compensation element comprises a body and a flange, and the flange is provided at one end of the body and defines a compensation hole in communication with a channel of the body. A bolt head is accommodated in the channel and is blocked by the flange, and a bolt rod passes through the compensation hole. The connection element comprises a connection disc and connection legs, and the flange is located between the bolt head and the connection disc. The connection disc is provided with a connection hole to receive the bolt rod. The connection legs are configured to connect the connection disc to the second part. The holding means is provided on the connection disc and the bolt rod, and is configured to couple the bolt rod to the connection disc to prevent the bolt rod from being withdrawn from the connection hole, thereby holding the bolt, the compensation element and the connection element in a pre-assembled position.

The present invention discloses an axial tolerance compensation arrangement 1 for the automatic compensation of tolerances between a first component A and a second component B, which has the following features: a nut element 10, preferably an annular nut element, with a radially outer fastening structure, in particular a bayonet structure, which can be fastened in a component opening 90, in particular a keyhole geometry, of the first component A, and an internal nut thread 22 of a first thread direction, a hollow screw 40 with a head 44 and a hollow cylindrical shank 42, which has on a radial outer side an adjusting thread 52 matching the nut thread 22 and on a radial inner side a fastening thread 56 with a second thread direction opposite to the first, which interacts with a fastening screw 80 of a second thread direction,so that the first component A and the second component B can be fastened to each other via the tolerance compensation arrangement 1, wherein the hollow cylindrical shaft 42 has a disassembly protection 60 at an axial end facing away from the head, which prevents the hollow screw 40 from being unscrewed from the nut element 10 during installation of the tolerance compensation arrangement 1.

The utility model discloses an anti-loosening double-nut pressing type quick coupler, and relates to the technical field of sealing couplings. Comprising a connector body, and a continuous fifth threaded section is arranged on the outer wall of the connector body; the locknut set comprises a fastening nut and a locking nut, a fixed section is formed at one end of the fastening nut, a continuous first threaded section matched with the fifth threaded section is arranged on the inner wall of the fastening nut and the inner wall of the fixed section, a second threaded section is arranged on the outer diameter of the fixed section, a locking section is formed at one end of the locking nut, and the locking section is matched with the second threaded section. A third threaded section matched with the second threaded section is arranged on the inner wall of the locking section, and a fourth threaded section matched with the fifth threaded section is arranged on the inner wall of the locking nut; the fastening nut and the locking nut are in threaded connection through the second threaded section and the third threaded section, and the locking nut is in threaded connection with the fifth threaded section on the connector body through the fourth threaded section. The fastening nut and the locking nut are fixed in a detachable connection mode.

A friction spacer adapted to be interposed between two mechanical components in order to transfer a force between the two mechanical components, the friction spacer including a flat part having two opposite surfaces defining a thickness, and a plurality of protuberances projecting from at least one of the surfaces, the protuberances of the plurality of protuberances extending from the at least one of the opposite surfaces by a determined average height. The flat part and the protuberances are produced from the same metal material, and the same metal material continuously extends between the flat part and the protuberances.

A mounting system includes a mounting device. The mounting device includes an internal cavity defined in a side of the mounting device, a first sealant aperture defined in the mounting device and opening into the internal cavity, a second sealant aperture defined in the mounting device and opening into the internal cavity, the first sealant aperture and the second sealant aperture being in fluid communication when the mounting device is placed on a surface for use, and a fastener aperture defined through the internal cavity. The mounting system further includes a coupling bracket including a bottom portion, an underside surface of which is correspondingly shaped in conformance with a shape of an outer surface of a central portion of the mounting device so as to be accommodated thereon when in use, and a fastener to couple the mounting device and the coupling bracket together via the fastener aperture.

The utility model relates to the technical field of anti-loosening bolts, in particular to an anti-loosening bolt for a wind driven generator, which comprises a bolt and a nut, the bolt comprises a head and a screw rod, the nut is in threaded connection with the surface of the screw rod, a sliding groove is arranged on the surface of the screw rod, and a circular ring base plate is sleeved on the surface of the screw rod. And a limiting block is fixedly connected to the inner arc surface of the circular ring base plate, the limiting block is clamped in the sliding groove, an inserting groove is formed in the surface of the circular ring base plate, and a locking mechanism is fixedly connected to the surface of the nut. The bolt and the nut can be fixed through matching of the circular ring base plate and the locking mechanism on the nut, so that connection between the bolt and the nut is firmer, the problem of bolt loosening caused by various complex working conditions such as vibration, high and low load changes and strong wind impact in the operation process of the wind driven generator can be effectively solved, and the service life of the wind driven generator is prolonged. The reliability of bolt connection is greatly improved, and stable connection of all parts of the wind driven generator is ensured.

The utility model discloses an elastic positioning lock pin with self-locking performance, which comprises a positioning cylinder, a self-locking mechanism and an external supporting mechanism, the upper end of the positioning cylinder is fixedly connected with a fixing sheet, the upper side of the fixing sheet is provided with a pressing sheet, and the upper end of the pressing sheet is fixedly connected with a positioning pin; the self-locking mechanism comprises a fixing barrel, avoiding openings, locking handles and inclined blocks, the fixing barrel is fixedly connected to the center of the upper surface of the fixing piece, the inclined blocks are fixedly connected to the upper end of the inner wall of the fixing barrel, the avoiding openings are evenly formed in the pressing piece, the locking handles are rotationally connected to the interiors of the avoiding openings, and the locking handles are fixedly connected to the inner wall of the fixing piece. The lower ends of the locking handles are installed on the inner surfaces of the inclined blocks in a matched mode. The outer supporting mechanism is arranged in the positioning cylinder, the self-locking mechanism further comprises a guide groove and a guide column, and the elastic positioning lock pin with the self-locking performance can automatically adapt to positioning holes of vehicles with different diameters and can be stably installed in fixing holes with different diameters.

A dual interface screw element includes a screw body (10) with an external thread (12) and two distinct engagement interfaces (13, 15), one for inserting the screw and another for removing it. The removal engagement interface (15) includes a reverse thread (16) located in an axial recess (36) such that a complementary reverse-threaded tool (24) applying torque to extract the screw body is tightened against the second engagement interface. The screw is part of a system including an extraction tool (24) and an insertion tool (18). Applications include medical applications such as dental implants and bone screws, domestic applications such as headless wall mounting anchors, and a wide range of other industrial and aerospace applications.

A fitting nut made of a resin material includes: a hollow, large-diameter tube portion having a female thread formed on its inner peripheral wall; and a small-diameter tube portion that is continuous to the large-diameter tube portion and having a hollow cylindrical shape with a smaller diameter than the large-diameter tube portion. The small-diameter tube portion includes, in the outer peripheral wall thereof, a plurality of engagement grooves that are depressed inwardly in the diameter direction of the small-diameter tube portion and extend along the longitudinal direction that is orthogonal to the diameter direction.

A nut adapted to disengage with a threaded bolt, the nut comprising a base portion integrally formed to a top portion. The nut includes a bore positioned along a central axis through the base portion and the top portion, wherein the top portion is tapered between circumference of the base portion and the bore of the top portion. The tapering is at an angle between 0° to 45° relative to the diameter of the base portion; the base portion comprises at least two cavities, wherein the at least two cavities extend vertically into the base portion.

The invention discloses an anti-loose structure nut and a using method thereof, and the anti-loose structure nut is composed of an upper nut and a lower nut; one end of the upper nut is of a conical surface structure, and the inclined angle of the conical surface structure relative to the central axis of the upper nut is 16 degrees; a groove is formed in the conical surface structure; the upper portion of the lower nut is an inner taper hole, the lower portion of the lower nut is a straight hole, and the included angle between inclined generatrixes on the two sides of the inner wall of the inner taper hole is 16 degrees. The diameter of the inner taper hole is smaller than that of the conical surface structure. The using method comprises the following steps that (1) the lower nut is screwed into the bolt penetrating into the interlayer; and (2) screwing the upper nut into the inner taper hole of the lower nut by adopting a hexagonal wrench. The device is simple in structure and easy to process and manufacture; common carbon steel or stainless steel materials are adopted, so that the manufacturing cost is low; the locking torque is large and stable, and the anti-loosening performance is excellent; during installation, the locking torque can be adjusted according to actual requirements; and the locking torque is stable and reliable, and can be repeatedly disassembled and used.

An assembly for securing at least one tube to a threaded stud includes a pin and a bracket. The pin includes an elongated body, a driving head disposed at one end of the pin, and a coupling head disposed at the other end of the pin. The pin has a bore for receiving the threaded stud. The bracket includes at least one finger and at least one receptacle for receiving and retaining the at least one tube. The pin is insertable into a bore in the bracket to a first position in which the at least one finger of the bracket engages the coupling head and thereby inhibits withdrawal of the pin from the bore in the bracket. The pin is rotatable relative to the bracket using the driving head to thread the pin onto the threaded stud and thereby insert the pin further into the bore in the bracket.

A captive fastener system and methods of installing captive fasteners are presented. A captive fastener system comprises an expandable opening with an initial diameter connected to a channel; and the channel. The channel has an internal diameter larger than the initial diameter and an exit diameter configured to retain a head of a fastener inside the channel.

A fastened member configured to be fixed to a vehicle body-side member by a screw member includes: a base including a reference surface configured to receive a bearing surface of the screw member; an insertion hole provided in the base and configured to insert the screw member therethrough, and a protruding portion protruding from the reference surface. The protruding portion includes a tilted surface tilted so as to become higher along a rotation direction in which the screw member is tightened. When the screw member is tightened, the protruding portion and the base are sandwiched between the vehicle body-side member and the bearing surface and are plastically and elastically deformed.

The invention discloses a knurled bolt with corrosion resistance and a preparation method and application thereof, and belongs to the technical field of bolt machining, a rod blank comprises the following chemical components in percentage by weight: 0.33 to 0.37 percent of C, 12.3 to 12.7 percent of Cr, 2.1 to 2.3 percent of Ni, 1.15 to 1.25 percent of Mo, 0.80 to 0.95 percent of Mn, 0.18 to 0.22 percent of V, 0.15 to 0.25 percent of Si, 0.05 to 0.07 percent of N, 0.0015 to 0.0025 percent of B, less than or equal to 0.03 percent of Al, less than or equal to 0.02 percent of Ti, less than or equal to 0.002 percent of S, less than or equal to 0.012 percent of P and the balance of Fe and other inevitable elements; and the rod blank is subjected to spheroidizing annealing, acid pickling phosphating, wire drawing, cold heading, knurling, thread rolling, heat treatment and Dacromet surface treatment, and then the knurled bolt with the corrosion resistance is obtained. By means of the mode, the excellent mechanical property is achieved under the condition that the corrosion resistance is guaranteed.

The present application relates to the technical field of fastener, in particular to a nut assembly for preventing loosening and unfastening and a packaging method thereof, the nut assembly is composed of a bolt, a nut and a protection structure, the protection structure includes a protection body with a protection cavity, a guide, an elastic support and an elastic end piece; the elastic support is arranged at one end of the protection cavity; the elastic end piece is detachable at the other end of the protection cavity; the elastic end piece, the guide, the nut, the bolt and the elastic support are distributed along the protection body in the axial direction, and the elastic support and the elastic end piece have a first elastic body and a second elastic body respectively; when the elastic end piece is pressed, the second elastic body supplies air to the nut and cleans it through the guide; when the elastic support is pressed, the bolt is exposed from the cavity opening of the protection cavity, when the elastic support recovers, the bolt is retracted into the protection cavity and wrapped by the first elastic body, the present application completes the cleaning of the nut and the bolt while packaging the beads, reduces the production process flow and ensures the production capacity.

A system for adaptive coupling of two structural members comprises a first eccentric hollow bush having a cylindrical outer surface and a cylindrical inner hole with an axis that is eccentric relative to the first-bush outer surface, and a second eccentric hollow bush having a cylindrical outer surface and a cylindrical inner hole having an axis that is eccentric relative to the second-bush outer surface. When the system is in an unlocked and assembled state, the second bush is disposed within the inner hole of the first bush such that its outer surface faces the first bush inner hole, the first bush is inserted in respective opposing fixturing holes of the two structural members such its outer surface faces the fixturing holes, and the first second bushes are respectively rotatable about the first and second eccentric axes.

The invention belongs to the technical field of screws, and particularly relates to a multi-gear adjusting clamping sleeve type anti-loosening screw fastener and an assembling method thereof. The multi-gear adjusting clamping sleeve type anti-loosening screw fastener comprises a screw body, the screw body is provided with a working thread and an anti-loosening thread extending in the direction, away from the head, of the tail end of the working thread, and the thread rotation direction of the working thread is opposite to that of the anti-loosening thread. The diameter of the working thread is larger than that of the anti-loosening thread. According to the anti-loose screw fastener, the nut, the anti-loose cap and the anti-loose clamping sleeve are cooperatively matched, efficient fastening can be achieved, an anti-loose clamping sleeve structure without precise alignment is not needed, installation is convenient, and the anti-loose screw fastener has wide market application prospects.

The invention concerns a multi-part brake caliper for a vehicle disc brake, the brake caliper comprising: a first part comprising a portion that is arrangeable at a first side face of a brake disc of the vehicle disc brake; a second part that is formed separately form the first part and comprises a portion that is arrangeable at a second side face of the brake disc; a middle part connecting the first part and the second part; wherein the middle part is mechanically fixed to at least one of the first and second part.

A fastening system may include a union plate with four perforated holes aligned with mat corners. A device may include threaded receiver nuts within the perforated holes of the union plate. A device may include a tapered bolt with a threaded end, configured to engage the receiver nuts. A device may include a rubber washer and a tapered steel washer with a tapered center hole, arranged in the bolt assembly.

The utility model provides a multifunctional lock bolt, which relates to the technical field of bolts, and comprises a head body, the bottom end of the head body is fixedly connected with a screw rod, the outer surface of the screw rod is provided with a fastening structure, the fastening structure comprises an inserting rod, one side of the inserting rod is fixedly connected with an L-shaped block, and the L-shaped block is fixedly connected with the bottom end of the head body. An L-shaped block is fixedly connected to the top end of the head body, an elastic piece is fixedly connected to the top end of the L-shaped block, a circular groove is formed in the screw rod, two protruding rods are fixedly connected to one side of the elastic rod, and a clamping groove is formed in the top end of the head body. The two elastic rods in the circular grooves are extruded by the surfaces of the inserting rods, so that the convex rods on one sides of the elastic rods extrude the rubber strips, the rubber strips expand outwards to fill the joints of the outer surfaces of the screws and the parts or the nuts, and the screws and the parts or the nuts are fastened. And connection looseness caused by shaking after the screw is connected with a part or a nut is avoided as far as possible. And the stability when the bolt is used is improved.

An anti-loosening bolt assembly, a use method, and a repeatable removal and use method. The anti-loosening bolt assembly comprises: a screw rod (100), the screw rod (100) comprising a head portion (110), and a rod portion (120) sequentially passing through a first workpiece (300) and a second workpiece (400), the outer wall of the rod portion (120) being provided with an outer thread (121), and the side of the outer thread (121) facing towards the head portion (110) being provided with a plurality of locking slots (1201) arranged at equal intervals along the extension direction of the outer thread (121); and a locking nut (200) connected to the rod portion, the locking nut (200) being provided with an inner thread (210), the side of the inner thread (210) facing away from the head portion (110) being provided with locking protrusions (211), the inner thread (210) fitting the outer thread (121) to drive the locking nut (200) to move towards the second workpiece (400) and press the second workpiece (400), and to drive the locking protrusions (211) to sequentially pass through the plurality of locking slots (1201) in the screw-in direction of the locking nut (200) and be in embedded fit with the locking slots (1201), so as to prevent the locking nut (200) from screwing out.

A pull-rivet assembly, a product, a product assembly, and a product installation method are disclosed. The pull-rivet assembly includes a pull-rivet nut including a locating end, a bolt threadedly connected to the pull-rivet nut, and a washer sleeved on the locating end of the pull-rivet nut. The washer engages the locating end of the pull-rivet nut so that the pull-rivet nut cannot rotate relative to the washer, and the washer is adapted to engage a sleeve of a pull-rivet tool to prevent the pull-rivet nut from rotating when being pulled by the pull-rivet tool. In the present invention, the pull-rivet nut is riveted to a second component and the first component is fastened to the second component by tightening the bolt. Moreover, the pull-rivet nut does not rotate during the tightening of the bolt. The present invention simplifies the installation step of fastening the first component to the second component and reduces the cost.

An air vehicle structure includes a first component having a plurality of first component openings, and a second component positioned on the first component and having a plurality of second component openings aligned with the plurality of first component openings. A plurality of fasteners extend through the second component openings and into the plurality of first component openings to secure the second component to the first component. A cover assembly is installed over the second component covering the plurality of fasteners and includes a cover frame, and a plurality of wedge lock assemblies. Each wedge lock assembly is positioned at a second component opening of the plurality of second component openings. Each wedge lock assembly of the plurality of wedge lock assemblies are engaged to an interior surface of a corresponding second component opening of the plurality of second component openings to secure the cover assembly to the second component.

A torque control fastener system having a fastener nut, a helical wire insert, and a shaft, where the nut and helical wire insert have unique hardness and coefficient of thermal expansion relationships that produce improved performance.

The utility model discloses an anti-loose metal clamping sleeve type sealing joint combination, and relates to the technical field of sealing joints. The anti-loose metal clamping sleeve type sealing joint combination comprises a joint body and a welding transition joint, the welding transition joint is connected to one end of the joint body, an annular groove is formed in the inner side wall of the end of the joint body, the diameter of the annular groove is matched with the outer diameter of the welding transition joint, the welding transition joint is inserted into the annular groove, and the welding transition joint is connected with the end of the joint body. A trumpet-shaped limiting groove expanding outwards is formed in a groove opening of the annular groove; the welding transition joint is sleeved with a locknut, the locknut is in sliding connection with the welding transition joint, a first threaded section in an external thread shape is arranged on the outer side of the joint body, the locknut is in threaded connection with the joint body, and a clamping sleeve is arranged between the inner wall of the locknut and the outer wall of the welding transition joint. The end, close to the connector body, of the clamping sleeve is provided with a conical cutting edge.

A connecting rod coupling device for attaching a component to an aircraft fuselage and / or stiffening the fuselage has a first coupler, and a second coupler couplable to the first coupler. The first coupler has an elongate body with a first channel on a lateral surface along a first longitudinal axis. The second coupler has a hollow-cylindrical portion, which, on an inner face along a second longitudinal axis, has a second channel complementing the first channel. The hollow-cylindrical portion has a radial cutout through which the elongate body is radially insertable into the second channel from outside the hollow-cylindrical portion. The second coupler has a closure body, which closes the radial cutout, and can be positioned removably in the cutout to complete the second channel on a radially internal face. The second coupler also has an element, pushable onto the hollow-cylindrical portion to secure the closure body on the hollow-cylindrical portion.