658results about "Pins" patented technology

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 fastener assembly is described for coupling a second component, via a strap, to an opening in a first component. The assembly includes a lock pin and a base structure. The lock pin has a shank with a head at one end and a lock tab at the opposite end. The base structure includes a grommet portion defining a grommet opening and a pair of resilient legs configured to engage the opening. The head comprises a fixed planar portion attached to the shank and at least one hinged wing portion. An installation indicator spans at least part of both the fixed and wing portions. The grommet opening receives at least part of the shank and includes a protrusion feature that secures the lock pin in a first assembled position. At least one leg includes a resilient flex tab configured to retain the base structure within the opening of the first component.

The invention discloses a pull rivet connecting piece and a lantern ring preparation method and application thereof, the pull rivet connecting piece comprises a pull rivet and a lantern ring, and a preformed directional deformation protrusion is arranged on the cylinder wall of the lantern ring and located in a preset bulging deformation area. In the rivet pulling process, the directional deformation protrusion preferentially generates radial plastic deformation when being axially compressed, so that a drum-shaped locking structure which is accurate in position and uniform in shape is formed, and the lantern ring is integrally formed through a local plastic deformation process and can be prepared through an internal reaming method or an external die assembly extrusion method. According to the lantern ring, it can be ensured that radial plastic deformation is evenly spread in the circumferential direction of the lantern ring through the directional deformation protrusions designed through the pre-forming structure, controllability and predictability of the deformation process are greatly improved, consistency, reliability and convenience of pull-rivet connection are kept through the design, the tensile strength and the shear strength of connection are remarkably improved, and the service life of the lantern ring is prolonged. The method is suitable for occasions with high reliability requirements.

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.

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.

The invention discloses a feeding mechanism of an automatic cold header for machining piston pins. The feeding mechanism comprises a main machine (1), a feeding mechanism body (20) is arranged on the front portion of the main machine (1), the feeding mechanism is connected with an iron wire frame (2) through an iron wire, and a discharging mechanism (3) is arranged on one side of the main machine (1). The feeding mechanism body comprises a base (4), fixed wheels (5) are arranged on one side of the base (4), and moving wheels (6) are arranged on the other side of the base (4). Side bases (7) are arranged on two sides of the base (4), sliding bases (8) are arranged on the inner sides of the side bases (7), and the contact surfaces of the sliding bases (8) and the side bases (7) are in sliding fit. The moving wheels (6) are arranged on the upper sides of the sliding bases (8), a threaded barrel (9) is fixed below the sliding bases (8), a threaded column (10) is arranged in the threaded barrel (9), a bearing pedestal (11) is arranged at one end of the threaded column (10), a rotating ring (12) is fixed to the other end of the threaded column (10), the rotating ring (12) is provided with a circle of small holes (13), and a rotating handle (14) is arranged in one small hole (13) in an embedded mode.

The connecting mechanism capable of preventing the threads from being damaged comprises a support, a connecting piece and an anti-damage piece, the support is installed on first equipment, the support is provided with a threaded hole, the connecting piece comprises a head and a rod body, the rod body comprises a smooth part and a threaded part, and the smooth part and the threaded part are in threaded connection. The smooth part is formed by extending between the threaded part and the head part, and the connecting piece is installed on the support in the mode that the threaded part is matched with the threaded hole to penetrate through the threaded hole in a rotating mode so that the smooth part can be kept inserted into the threaded hole. The connecting piece rotates into the second device to connect the first device with the second device, the anti-damage piece is installed on the smooth part or the support, and the anti-damage piece is arranged to be capable of limiting the moving stroke of the connecting piece so as to prevent the threaded part from rotating into the threaded hole. The thread part is effectively prevented from being clamped due to thread staggering, so that the thread part is prevented from being broken or deformed.

To provide a come-off prevention tool for a one-side bolt that eliminates the need of processing of a material to be fastened and has excellent versatility.SOLUTION: A come-off prevention tool for a one-side bolt includes: a sleeve attachment member to be attached to a sleeve head; and a bolt attachment member to be attached to a bolt head. The sleeve attachment member includes: a top plate part facing a top surface of a sleeve head; a side plate part extending along a side surface of the sleeve head from the top plate part and regulating relative rotation between a sleeve and the sleeve attachment member relative to a central axis of a bolt; and a projection piece extending in a direction different from the extension direction of the side plate part from the top plate part. The bolt attachment member includes: a fitting hole fitted to the bolt head and regulating relative rotation between the bolt and the bolt attachment member relative to the central axis; and an insertion hole through which the projection piece of the sleeve attachment member is inserted.SELECTED DRAWING: Figure 5

The utility model belongs to the technical field of new energy automobiles, and particularly relates to a new energy automobile fastener protection device which is characterized in that the top end of a connecting seat is fixedly connected with an oiling assembly, the interior of the oiling assembly is in threaded connection with a fastening bolt, the surface of the fastening bolt is provided with a connecting groove, and the surface of the connecting groove is provided with an oil storage groove; a protection assembly is slidably connected to the surface of the fastening bolt, the oiling assembly comprises an oil storage tank, and the protection assembly comprises a flange plate. The fastening bolt is placed in the connecting cylinder and the fixing base, contact with external substances is avoided through the sealing ring, meanwhile, lubricating oil is regularly conveyed into the connecting cylinder through the communicating pipe to conduct oiling operation on the fastening bolt, and then the flange plate is inserted into the surface of the fastening bolt. The automobile body compresses the spring washer, and the spring washer rebounds to push the flange plate to abut against the automobile body structure, so that the fastener is tightly connected with the automobile body structure.

The utility model discloses a corrosion-resistant heavy hexagon nut for submarine oil drilling and production equipment, which comprises a nut body, a first rubber sleeve is arranged on the nut body, an extrusion plate is mounted below the nut body, a mounting groove is formed in the extrusion plate, a second rubber sleeve is mounted in the mounting groove, and the extrusion plate is arranged at the bottom end of the nut body through a sliding assembly. A protective sleeve is arranged on the outer side of the nut body, a guide assembly is arranged on the protective sleeve, and a locking assembly is arranged on the guide assembly. According to the corrosion-resistant heavy hexagon nut for the submarine oil drilling and production equipment, through the design of the first rubber sleeve, the second rubber sleeve and the protective sleeve, an additional protective layer can be provided for the nut body in a humid or corrosive environment, the corrosion risk is reduced, and the service life of the nut body is prolonged. And the rubber ring at the bottom end of the protective sleeve improves the sealing performance between the protective sleeve and the extrusion plate, the connection reliability is improved, and the stability and safety of the nut in a severe environment are ensured.

The utility model discloses a wear-resistant and corrosion-resistant fastener with a self-locking function, which relates to the technical field of fasteners and comprises a bolt and a nut, the bolt consists of an adjusting head and a screw, two contact plates are mounted between the adjusting head and the nut and between the screw, one end of each contact plate is provided with a protective tube, and the other end of each contact plate is provided with a protective sleeve. The adjusting head and the nut are located in the protection pipe, a plurality of self-locking grooves are distributed in one end of the contact plate in the protection pipe, two self-locking blocks are symmetrically installed at the end, close to the screw rod, of the adjusting head and the end, close to the nut, of the adjusting head, and protection covers are detachably installed in the protection pipe. The contact plate is installed on one side of the adjusting head and one side of the nut, when the nut and the adjusting head rotate to a certain distance, the adjusting head on the adjusting head and the nut can enter the proper self-locking groove, self-locking of the adjusting head and the nut is achieved, and accidental rotation of the adjusting head and the nut is effectively avoided.

The utility model discloses a brake planet carrier, which relates to the technical field of brake planet carriers and comprises a bottom frame and a top frame. Fixing columns are evenly fixed to the top face of the bottom frame around the circle center, mounting grooves are formed in the surfaces of the fixing columns, mounting blocks corresponding to the fixing columns in position are evenly arranged on the bottom face of the top frame, the mounting blocks are correspondingly connected with the mounting grooves in an inserted mode, shaft holes are evenly formed in the surface of the top frame around the circle center, and shaft grooves are evenly formed in the top face of the bottom frame. A fixing unit is arranged in the fixing column; the brake planet carrier further comprises a planet wheel shaft and a planet wheel assembly, the bottom end of the planet wheel shaft and the shaft groove are correspondingly installed, and according to the brake planet carrier, the insertion blocks are inserted into the insertion holes through spring contraction to install the planet carrier, so that the problems that according to traditional bolt fixing, corrosion, thread slipping and damage are prone to occurring are solved; and meanwhile, dust and foreign matters on the surface of the planet wheel can be cleaned through the arranged cleaning brush, so that the dust and foreign matters are prevented from entering the planet wheel to influence subsequent use.

The utility model relates to the technical field of rivet nuts, and discloses an anti-loosening rivet nut which comprises a nut body, a nut head is arranged at the top end of the nut body, and a deformation part is fixedly connected to the top end of the nut body. According to the anti-loosening rivet nut, the reinforcing step, the anti-skid teeth, the protective layer, the polyurethane anti-corrosion paint and the waterproof coating are arranged, the anti-skid teeth can increase the installation torque after riveting, and therefore the stability of the nut body can be improved, the outer portion of the nut body and the outer portion of the deformation part are coated with the polyurethane anti-corrosion paint and the waterproof coating, and therefore the anti-loosening rivet nut is more stable. The polyurethane anti-corrosion paint has good weather resistance, so that the nut body can keep the performance for a long time in the outdoor environment and is not prone to pulverization and cracking, the polyurethane anti-corrosion paint further has high wear resistance, and the waterproof coating can prevent water from permeating into the nut body to affect the using effect of the nut body. The problems that corrosion resistance and skid resistance are poor, and use of a rivet nut is easily affected are solved.

The utility model relates to an offshore photovoltaic bolt-sphere grid structure adopting coating type corrosion prevention. The grid structure comprises a bolt ball, a rod piece, a sleeve and a fixing bolt, the outer diameter of the sleeve is smaller than the outer diameter of the first end face, facing the bolt ball, of the rod piece, the bolt ball and the rod piece are fixedly connected through the fixing bolt, and the sleeve is fastened between the bolt ball and the rod piece; the anti-corrosion structure comprises sealing mud structures and petrolatum belt structures, the sealing mud structures are arranged at the two ends of the sleeve respectively, the petrolatum belt structures wind and fill gaps formed by the bolt balls, the sealing mud structures and the rod pieces, and the outer diameter of the sealing mud structures is not larger than that of the first end face; the outer diameter of the petrolatum belt structure is not smaller than that of the first end face. The sealing mud structure blocks joint gaps, the petrolatum belt structure forms a continuous protection layer, corrosion media in the marine environment are prevented from permeating, the joint area is fully covered, the quality problem caused by corrosion is reduced, and safe and stable operation of a project is ensured.

The utility model provides a kind of rust-proof leakage-preventing bolt fastener.The rust-proof leakage-preventing bolt fastener includes device main body, the device main body includes anti-loosening assembly, nut and bolt, the anti-loosening assembly includes the vertical rod set on bolt, the vertical rod is provided with pressing rod, the vertical rod bottom is equipped with fixed block, the pressing rod bottom is equipped with inverted taper block, the vertical rod is equipped with sliding slot, the vertical rod is fixedly installed with fixed plate in it, the fixed plate is provided with push rod, the one end of push rod is equipped with vertical plate, the second elastic member that can assist vertical plate to reset is set around on the push rod, the nut is equipped with vertical groove in it, the vertical groove is provided with limiting plate in it, the vertical groove is provided with shaft piece for connecting nut and limiting plate in it.The rust-proof leakage-preventing bolt fastener provided by the utility model has the effect of improving use safety.

Method and means of manufacturing ties, fasteners and rods (15) having a plurality of longitudinal threads by forcing a coil of roll-profiled feed-wire made of steel (11) through a twisting-die made of plastic (1). Also described is: a twisting-die made of plastic (1) that is suitable for twisting profiled feed-wire (11) made of steel; a method of forming a plastic twisting die (1) using an axially driven tap (31) in the form of a twisted rod (15); and a helically-shaped member (15) having lead measurements (X) along the length of the helical thread that vary less than pitch measurements (Y) along the lengths of the helical threads.

The utility model relates to the technical field of pipeline laying, and particularly discloses a water supply pipeline fixing device which comprises a first hoop plate and a second hoop plate, one end of the first hoop plate is hinged to one end of the second hoop plate through a pivot, a first bolt lug is fixedly arranged at the other end of the first hoop plate, and a second bolt lug is fixedly arranged at the other end of the second hoop plate. The first bolt lug is detachably connected with the second bolt lug through the bolt connecting piece; a cover plate is arranged on the side, close to the second bolt lug, of the second hoop plate, an inserting groove is formed in the cover plate, the first bolt lug and the second bolt lug are sleeved with the cover plate, and a lock catch structure is arranged on the inner side of the inserting groove. After the hoop plates fix the water supply pipeline, the cover plate is clamped with the first hoop plate and the second hoop plate, the bolt lug and the bolt connecting piece are contained in the inserting groove, the bolt lug and the bolt connecting piece are hooped, so that the connecting bolt is prevented from loosening, the two hoop plates are stably connected, liquid drops sprayed from the outside cannot directly fall on the bolt connecting piece due to protection of the cover plate, and the water supply pipeline is prevented from being damaged. The bolt connecting piece is prevented from being rusted.

A system for swaging an end of a fastener includes a pneumatic swaging tool and a quick-release end effector configured to couple to the pneumatic swaging tool. The quick-release end effector includes a body, a clamping member, and a cam lock. The body of the quick-release end effector includes a plurality of stationary threads, and the clamping member of the quick-release end effector includes a plurality of moving threads. The cam lock of the quick-release end effector is configured to operate between an open position and a closed position. In the closed position, a locking edge of the cam lock causes threads of the fastener to be clamped between the moving threads of the clamping member and the stationary threads of the body, thereby securing the fastener during swaging operations by the pneumatic swaging tool.

The invention discloses a high-corrosion-resistance connecting fastener, and relates to the technical field of fasteners, the high-corrosion-resistance connecting fastener comprises a head module and a rod module, and the head module and the rod module can form active separation connection; the head module comprises a head base body and an inner taper hole formed in the head base body in the axial direction, and a left-hand internal thread is machined on the inner wall of the inner taper hole. The whole body realizes the unification of high-strength locking and rapid active separation through the cooperation design of conical surface interference fit and Lurbert tear; and the memory alloy is utilized to accurately trigger crushing, and the prestress is instantly released. The LC resonance piece and the pre-deformation alloy ring jointly form a state sensing system, and remote monitoring and on-site indication are achieved. Maintenance cost is reduced through modularized sacrificial parts, smooth screwing is guaranteed through variable-pitch threads, double protection is formed by a rare earth anti-corrosion layer and a sealing face, and corrosion resistance in the extreme environment is remarkably improved.

The utility model relates to the technical field of protective screws, and discloses a protective screw with an anti-corrosion coating, which solves the problem that a rotating groove at the head of an existing screw can be detached when the rotating groove deforms, and comprises a head, a rod body is fixedly connected to the bottom of the head, and the rotating groove is arranged at the top of the head. An auxiliary mechanism is arranged at the top of the head and comprises a top frame fixed to the top of the head, an inner shaft is rotationally connected into the top frame, the outer side of the inner shaft is fixedly sleeved with an adjusting plate, the adjusting plate and the top frame are arranged in parallel, and a through hole is formed in the adjusting plate; according to the adjusting device, the adjusting plate can be rotated to be perpendicular to the top frame, through cooperation between the guide column and the sleeve block and cooperation between the spring and the guide block, the inserting rod can move to abut against the adjusting plate conveniently, then the adjusting plate can be limited, and therefore an external rod body can penetrate through the two through holes conveniently to be rotated so that the rod body can be screwed and disassembled.

The utility model provides a high strength corrosion -resistant stainless steel fastener belongs to fastener technical field technical field, including main screw rod, the hard tube is embedded in main screw rod middle part, the hexagonal main nut is fixedly connected with the top of main screw rod, is equipped with the main thread hole in the middle part of hard tube, has the vice screw rod to be connected with screw in main thread hole, the plastic expansion cylinder is equipped with in the flat head bottom of vice screw rod, is equipped with the split mouth in the top four corners of plastic expansion cylinder, is equipped with semicircle extruding head in the bottom of vice screw rod, is equipped with a plurality of recesses in the lateral wall of plastic expansion cylinder, is equipped with a plurality of anti -skid convexo -concave of distributing in the middle part of plastic expansion cylinder outer wall, is equipped with the connecting hole in the bottom of plastic expansion cylinder, the bottom end of vice screw rod is connected in the connecting hole, the utility model provides a high strength corrosion -resistant stainless steel fastener, installs into the sealed hole through PVE sealing cap, seals the place of hexagonal boss and main thread hole, avoids the rainwater to produce the corrosion in main thread hole.

The invention belongs to the technical field of fasteners, and relates to a car roof metal plate anti-scratch bolt protective sleeve structure which comprises a bolt body and a protective sleeve, the bolt body is provided with a head and a screw which are integrally formed, and the end face, away from the screw, of the head and the outer surface of the peripheral side are potential contact faces with a car roof metal plate; the protective sleeve is connected to the potential contact surface of the head, is made of a flexible wear-resistant material, and is used for isolating the head from a car roof metal plate, so that the head is prevented from being in direct contact with and scratching the car roof metal plate. The anti-scratch bolt has the advantages that the anti-scratch effect is reliable, the protective sleeve is made of a flexible wear-resistant material, the head of the metal bolt and a car roof metal plate are completely isolated, scratch and coating damage caused by contact friction are avoided, only the protective sleeve structure is added on the basis of an existing bolt, the design of a bolt body does not need to be changed, cost is low, and universality is high.

The invention discloses a contact pin part cold extrusion forming process, a die and a die using method. The contact pin part cold extrusion forming process comprises the steps of bar punching and blanking, sand blowing, cleaning, primary extrusion, deburring, sand blowing, cleaning, secondary extrusion and machining. The forming die comprises a first-order extrusion die and a second-order extrusion die. Through combination of first-order extrusion and second-order extrusion, material flow of the first-order extrusion and the second-order extrusion can be reasonably distributed, plastic forming of metal is facilitated, and the service life of the die is prolonged; as the junction of the waist-shaped column and the T-shaped connecting main body is in a sharp corner state, a forge piece forming metal flowing mode is changed through a two-sequence extrusion mode, the problem of material tearing at the sharp corner is avoided, the streamline of the part is complete, the mechanical property is good, and the conductivity of the part is ensured; secondary forming is matched with little machining, the cutting allowance and the cutting face are reduced, the utilization rate of raw materials is increased, the production efficiency is improved, the production cost is reduced, and the market competitiveness is improved.

The utility model discloses a cross countersunk head self-drilling and self-tapping screw, which relates to the technical field of fasteners and comprises a screw main body, a screw head is mounted at the top end of the screw main body, a cross groove is formed in the top end of the screw head, a connecting groove is formed in the top end of the screw main body, and a connecting column is fixedly connected to the bottom end of the screw head. The connecting column is arranged in the connecting groove, the cross section of the connecting column is in a regular polygon shape, a plurality of arc-shaped elastic pieces are evenly arranged in the connecting groove along the circumference, and the ends of the arc-shaped elastic pieces abut against the side face of the connecting column. The arc-shaped elastic piece deforms, so that the connecting column crosses the arc-shaped elastic piece, the slipping phenomenon occurs, and the phenomenon that the screw slips due to overlarge output force is avoided.

To provide a gaming machine that offers improved maintainability. [Solution] The device comprises a screw and a magnet, and is configured to hold the screw removed from the gaming machine by the magnetic force of the magnet, but is configured not to hold the door key by the magnetic force of the magnet.

The utility model discloses a connecting structure of a brake rail and a sliding seat. The connecting structure of the brake rail and the sliding seat comprises the brake rail, the sliding seat, a plurality of bolts and a plurality of nuts, the bolts and the nuts are in threaded connection to connect the brake rail and the sliding seat into a whole, and the brake rail is detachably connected with a baffle and used for limiting the bolts to move in the direction away from the nuts. According to the utility model, the problems that the structure is too complicated, the cost is high, and the field installation is tedious in the prior art are solved.

The utility model discloses an anti-loosing pre-tightening assembly of a high-strength sectional type bolt, which is applied to the technical field of fastening connection, when a bolt on one side is tightened, a bolt on the other side is synchronously and reversely screwed in, so that the automatic balanced transmission of pre-tightening force on two sides is realized, the structure not only simplifies the operation process of bidirectional synchronous fastening, but also reduces the labor intensity of workers. The mechanical interlocking effect of reverse threads can be utilized, self-balancing constraint is formed under vibration or impact, overall pre-tightening force attenuation caused by single-side loosening is avoided, meanwhile, the requirement for manual repeated adjustment is reduced, and the assembly efficiency and the anti-loosening reliability are improved; the inclined plane meshing structures of the wedge-shaped locking washers on the two sides of the threaded cylinder automatically generate radial expansion force when the bolt is pre-tightened, so that the sawteeth of the washers, the threaded cylinder and the surface of a connected piece form multidirectional mechanical interlocking, and the bidirectional wedge-shaped structure can continuously compensate for pre-tightening force attenuation through the inclined plane self-tightening effect under vibration or impact.