1269results about "Pins" patented technology

The invention discloses a modular splicing type wind power tower drum, and relates to the technical field of wind power engines, the modular splicing type wind power tower drum comprises a first tower drum and an automatic splicing assembly, a first flange is arranged on the outer wall of the top of the first tower drum, the automatic splicing assembly is fixed on the outer wall of a second tower drum, and a rotating sleeve is fixed at the end part of a blade. According to the modular splicing type wind power tower drum, oil flows in the annular channel to push the gear ring to be meshed with the nut gear to rotate, so that the nut body is in threaded connection along the surface of the fastening bolt in the descending process, and after the fastening bolt completely descends, the oil stops flowing to form resistance on the two sides of the blades; the nut body cannot rotate at will through the bearing, it is guaranteed that the first tower drum and the second tower drum are firmly spliced through the fastening bolts, fastening of all the fastening bolts can be achieved at a time, workers do not need to work high above the ground, assembly time is greatly shortened, and therefore the assembly efficiency of the tower drums is improved.

An assembly having a chassis, two supports with a plate and a guide, a nesting system with a bore, a reservoir containing an extinguishing fluid and with two fastening tabs, two bearing tabs and a peg, and a fastener. The reservoir is able to move in translation between a premounting position in which each fastening and bearing tab rests on a plate and each guide guides the fastening and bearing tabs to align the peg and the bore, and a mounting position in which each fastening tab rests on the plate, the peg is introduced into the bore, the bearing tabs no longer rest on the plates and the fastener fastens each fastening tab to the plate. Such an assembly allows the reservoir to be withdrawn and put in place quickly and easily.

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.

Disclosed in the present disclosure is a supporting bolt, a cantilever supporting structure and a conducting device. The supporting bolt includes a locking screw, a support screw sleeve, and an elastic supporting member. The locking screw is fixedly connected the pressure receiving structure. The support screw sleeve is fixedly connected the pressure applying structure and is slidably disposed on an outer surface of the locking screw along a direction of the central axis within a sliding range. The elastic supporting member includes a first elastic member, a first end of the first elastic member is compressed against the support screw sleeve, and a second end of the first elastic member is compressed against the pressure receiving structure, the first elastic member has an elastic force along the pressure receiving structure towards the pressure applying structure to support the pressure applying structure.

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.

A mechanical connection arrangement for panels comprises a first panel and a second panel. A surface of the first panel and a surface of the second panel are parallel and in contact in a locked position of the first and second panels. The connection arrangement includes at least one rod-shaped element at the surface of the first panel and at least one corresponding insertion recess at the surface of the second panel. The connection arrangement includes locking device which comprises locking pin at one end and a spring at another end. An envelope surface of a cone shaped end part of the locking pin comprises a pin locking surface which in the connected state is configured to cooperate with a recess locking surface of a panel recess.

The utility model discloses a self-fastening bolt structure, and relates to the technical field of bolts. The fastening bolt comprises a fastening bolt body, one end of the fastening bolt body is in threaded connection with a fastening nut, one end of the fastening nut is provided with an L-shaped rod, one end of the L-shaped rod is provided with a plurality of groups of connecting insertion holes which are distributed at equal intervals, one end of the fastening bolt body is provided with a square groove, and the inner side of the square groove is fixedly provided with connecting seats which are symmetrically distributed. When one end of the L-shaped rod surrounds the outer side of the fastening bolt body and is aligned with the square groove, the connecting column is pushed out of the square groove under the action of the first spring on the connecting seat; the connecting columns extend out and then penetrate through the corresponding connecting insertion holes so as to fasten connection between the fastening nuts and the fastening bolt body, the situation that the fastening nuts are loosened under the conditions of vibration, friction, mistaken touch and the like is prevented, then the fastening effect of the structure is enhanced, and connection between the fastening nuts and the fastening bolt body is more stable.

A collated-screw-band assembly comprises a loading band, multiple shoulder washers, and multiple screws. The loading band has multiple positioning hole sets linearly spaced apart and comprising a positioning hole and multiple bendable positioning clips surrounding the positioning hole. The shoulder washer comprises an annular body mounted through the positioning hole and a limiting rim extending outwardly from the annular body and abutting the positioning clips. A rod portion of one of the screws is mounted through the shoulder washer. A head portion of said screw and the limiting rim of the corresponding shoulder washer clamp the corresponding positioning clips and the loading band. When the collated-screw-band assembly drops or is impacted, the screws and the shoulder washers distribute the impact, thereby increasing assembling stability.

The utility model relates to the technical field of screws, in particular to a screw convenient to disassemble, which comprises a disassembling screw handle, and one end of the disassembling screw handle is clamped on the surface of a screw main body; after the screw is screwed in, a water absorption solvent is injected through the injection hole and sealed to isolate moisture in air and part of water permeated by rainwater within a certain time, so that the corrosion degree of the screw is delayed to a certain degree, the service life of the screw is prolonged, and the screw is convenient to disassemble and maintain; and the situation that the screw handle is rusted and the screw is damaged in the process of directly contacting and screwing out the screw is avoided as much as possible through the structure that the screw main body is separated from the screw handle.

The present disclosure provides a tolerance adjuster, including a housing, a fastener and a centering structure. The housing is a vertically through cylindrical body and includes an inlet and an outlet that are opposite to each other, and the housing defines a channel. The fastener is arranged partially in the channel. The centering structure is cooperatively connected to the fastener and the housing such that the fastener is movable axially back and forth in the channel and the fastener is kept substantially on a central axis of the housing. A hidden vehicle door handle can be mounted to an interior sheet metal of a vehicle door after the hidden vehicle door handle is aligned with an exterior sheet metal of the vehicle door, such that the hidden vehicle door handle can be mounted easily and reliably. The centering structure is cooperatively connected to the fastener to prevent the centering structure from being disengaged from the fastener after radial movement of the fastener, such that the centering structure does not need to be reassembled.

A sealing plug for blind hole, one-sided installation includes a stem head having a first end and an opposing second end, where the stem head includes a lip member disposed at the first end and having a first diameter, a skirt member disposed at the second end and have a second diameter that is less than the first diameter, and a first tapered portion disposed between the lip member and the skirt member and having a third diameter, a fourth diameter, and a first sloped portion therebetween. The stem head may also include a second tapered portion between the first tapered portion and the skirt member. The second tapered portion may have a fifth diameter, a sixth diameter, and a second sloped portion therebetween. The stem head may also include a waist member between the second tapered portion and the skirt member, the waist member having a seventh diameter.

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.

According to the disclosure, a screw is provided. It includes a head element having a base portion and a drive portion, and a threaded element connected thereto, wherein the drive portion includes at least two drive elements extending in the axial direction, which are springingly connected to the base portion in such a way that the drive portion, in an unstressed starting position, has in some regions a greater clearance than a tool, in particular a nut, a ratchet, or a socket, which corresponds to the drive portion, for actuating the drive, and such that, in a stressed mounting position in which the drive elements can spring inwardly in a radial direction via impingement by means of a tool, the drive portion has a clearance in some regions, which corresponds to approximately a clearance of a tool, such that the screw can be received and held in a tool in a loss-proof manner via a radially-outward acting force of the drive elements.

The invention relates to a corrosion-resistant anti-fatigue surface nanocrystallization bolt and a manufacturing method thereof, the corrosion-resistant anti-fatigue surface nanocrystallization bolt comprises a head part, a screw rod and a nut, the head part is sequentially provided with a surface sealing layer, an ultra-fine grain anti-fatigue layer, an anti-corrosion layer and a base body from the surface to a core part, or is sequentially provided with the surface sealing layer, the anti-corrosion layer and the base body, or is sequentially provided with the anti-corrosion layer and the base body, or is of a base body structure; the screw rod and the nut are sequentially provided with a surface sealing layer, an ultra-fine grain anti-fatigue layer, an anti-corrosion layer and a base body from the surface to the core part; and the head part and the end part of the screw rod are of an integrated or connected structure. The ultra-fine nanocrystalline anti-fatigue bolt has the advantages that the ultra-fine nanocrystalline anti-fatigue layer is manufactured through the surface nanocrystallization shape and property control technology, so that the fatigue resistance of the bolt is improved by more than 30% compared with that of similar bolts, and the use requirements of high strength such as dynamic load and the like in an extreme stress state are met.

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.

The utility model relates to the technical field of bolts, in particular to a quick disassembly type positioning bolt. The quick detachable positioning bolt comprises a screw rod and a screw head, a hexagonal block is arranged at the top of the screw rod, a hexagonal groove is formed in the top of the screw head in a penetrating mode, the hexagonal block is inserted into the hexagonal groove, and first sliding grooves are evenly formed in the outer side wall of the screw head. After the sealing plug is taken down, the cross bolt can be screwed down, then the cover cap is moved upwards to be taken down, a slotted screwdriver can be inserted into the clamping groove, the clamping block is pushed outwards to be separated from the inserting groove of the screw head, then the screw head can be moved upwards to be taken down, and at the moment, the positioned and fixed external part can be moved upwards to be separated from the screw rod. And then the lubricant can be easily input into a connecting gap between the screw rod and the external threaded hole, and at the moment, the hexagonal block is rotated by using a wrench to drive the screw rod to be screwed out of the external threaded hole, so that the effect of quickly disassembling the rusted screw rod is realized.

The invention discloses an anti-fatigue-fracture high-entropy alloy fastener and a preparation method thereof, and belongs to the technical field of fastening materials, the anti-fatigue-fracture high-entropy alloy fastener comprises a fastener base body, a stress sensor is arranged on the end face of one end of the fastener base body, and the fastener base body is Ni-Co-Fe-Mo-Al high-entropy alloy; the stress sensor comprises a bonding layer, a supporting layer, a piezoelectric functional layer and a wear-resistant electrode layer which are stacked from inside to outside, the bonding layer is a Ni-Co-Fe-Mo-Al high-entropy alloy layer, the supporting layer is a Ni-Co-Fe-Mo-Al / Ni-Co-Fe-Mo-Al-N nano multilayer ceramic layer, the piezoelectric functional layer is a ZnO-doped layer, and the wear-resistant electrode layer is a Ni-Co-Fe-Mo-Al-N high-entropy alloy conductive ceramic coating. According to the method, the Ni-Co-Fe-Mo-Al high-entropy alloy material is used for preparing the high-strength anti-fatigue-fracture fastener, the problems that traditional materials such as Ti, Cr and Ag are low in hardness and poor in friction resistance can be solved, the hardness of the electrode is greatly improved, and therefore the abrasion resistance of the electrode is greatly improved, and a new fastener development thought is provided for the industry.

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 invention relates to the technical field of molds, and discloses an anti-theft bolt and a forming process. The forming process comprises: a cold heading machine processes a disk element after spheroidizing annealing into a blank, electroplating the blank after quenching and tempering treatment, determining the anti-theft bolt, a first cold heading die of a multi-station cold heading machine of the cold heading machine performs chamfering pre-forming on the blank diameter of the disk element after spheroidizing annealing, a second cold heading die of the multi-station cold heading machine of the cold heading machine performs rod reduction pre-forming on the blank diameter of a first sequence blank, a third cold heading die of the multi-station cold heading machine of the cold heading machine performs head pre-forming on the blank diameter of a second sequence blank, a fourth cold heading die of the multi-station cold heading machine of the cold heading machine performs head re-forming on the blank diameter of a third sequence blank, and a fifth cold heading die of the multi-station cold heading machine of the cold heading machine performs anti-theft plum blossom forming on the blank diameter of a fourth sequence blank, and determining the blank. The invention meets the requirements for mass production of anti-theft bolts.

Electric motor with rotor shaft and housing part (3), wherein the rotor shaft is rotatably mounted in the housing part (3), wherein a hood, i.e. fan hood (1), is connected to the housing part (3), wherein an angle sensor has a rotatably mounted part, in particular a sensor shaft, which is mounted in a housing part (3) of the angle sensor, wherein the housing part (3) is connected to the hood by means of a torque support, wherein the hood has grid openings, wherein, as a torque support, a support part (4) connected to the housing part (3) of the angle sensor is connected to the hood by means of a connecting element (5), wherein a first section of the connecting element (5) is inserted into a grid opening and a second section is connected to the support part (4), wherein the connecting element (5) has a limiting section (90) which has a larger outer diameter than the first and / or second section, wherein the limiting section (90) is arranged between the support part (4) and the hood, wherein the support part (4) and / or the hood is made of a less elastically deformable material than the connecting element (5), wherein the support part (4) and / or hood are made of metal and the connecting element (5) is made of rubber or plastic, wherein the first section is designed outwards in the ring axis direction with a tapered cross-section and / or outer diameter, and wherein the second section is designed with a tapered cross-section and / or outer diameter towards the outside in the ring axis direction.

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 belongs to the technical field of hardware fasteners, and particularly relates to a screw and nut assembly which comprises a screw integration assembly, the screw integration assembly comprises a screw body, the outer wall of the screw body is connected with a flexible pad, the top of the screw body is fixedly connected with a control head, an inner hexagonal clamping groove is reserved in the top of the control head, and the outer wall of the screw body is connected with a nut. The flexible pad is arranged on the outer wall of the control head, stress application clamping grooves are formed in the outer wall of the control head, the flexible pad and the screw body form a rotating structure, the flexible pad is made of rubber, and the stress application clamping grooves are arranged at equal angles relative to the outer wall of the control head. According to the anti-loosening nut, the arranged flexible pad can conveniently prevent loosening of the screw or the nut caused by vibration, impact or other external force so as to provide an additional anti-loosening function, in addition, the position of the nut body can be fixed through the clamping rod, the nut body is prevented from loosening, and therefore the frequency that a fastener needs to be replaced due to loosening is reduced.

The present invention relates to a battery pack comprising: a case body having an internal space in which a plurality of battery cells are accommodated; a lower housing coupled to a lower portion of the housing main body; a through hole which is formed in the lower housing; and a stopper additionally provided to cover the through hole, in which the stopper includes a rupture portion at which rupture occurs when tension is applied from the outside of the lower case, so that it is possible to determine whether a user has arbitrarily detached the battery pack by checking whether the rupture portion is ruptured.