3577 results about "Rivet" patented technology

The invention provides a permanent magnet motor and a scroll inverter compressor, and relates to the technical field of scroll compressor design and manufacturing, and the permanent magnet motor comprises a stator iron core and a rotor iron core; the stator core comprises stator teeth and a stator yoke which are uniformly distributed along the circumference, fluid through grooves are formed in the outer side of the stator yoke at the tops of the stator teeth, stator grooves are formed in two adjacent stator teeth and the stator yoke between the two stator teeth, and a plurality of strands of conductive circular enameled wires are embedded in each stator groove; the outer side of the rotor core is composed of linear segments and arcs, air grooves which are evenly distributed are formed in the rotor core, non-uniform magnetic isolation bridges are formed between the air grooves and the linear segments on the outer side of the rotor core, a certain distance is formed between every two adjacent air grooves, parallel magnetic conductive ribs are formed, and permanent magnets with the magnetic field directions changing alternately are embedded in the air grooves. A rivet hole, a lightening hole and a shaft hole are arranged close to the inner side of the rotor core. Therefore, the defined proportionality coefficient Ks is kept in a reasonable range, the power density of the motor can be increased, the cost is reduced, and the efficiency is improved.

The invention discloses a control method applied to self-piercing riveting, and relates to the technical field of self-piercing riveting control. According to the method, riveting material data are collected in real time through a multi-source data fusion interface, the high-dynamic deformation process of a riveting head is captured, deformation rate and rebound value characteristic values are extracted, and a multi-dimensional process parameter set is constructed. And comprehensively analyzing the hardness, thickness and plastic dissipation characteristics of the material, and establishing an anti-deformation capability evaluation function. By introducing the fluctuation characteristics of the punching force, the nonlinear relation between the punching force and the elastic deformation of the riveting rod is analyzed, a hybrid compensation model is constructed, and a riveting dynamic coupling compensation vector is output. And generating a compensation weight matrix through an adaptive optimization algorithm, and dynamically adjusting the stamping force and the displacement of the riveting rod in combination with an anti-saturation control strategy. And dynamically adjusting a gain parameter through multi-scale filtering and a Lyapunov stability criterion, and triggering iterative updating of a compensation weight parameter during out-of-tolerance so as to optimize a control effect. Riveting precision and stability are improved, and the service life of equipment is prolonged.

The invention relates to the technical field of power batteries, and discloses a plastic uptake support CCS integrated busbar assembly, which comprises a plastic uptake support body, busbar bodies, a wiring harness assembly and a collection nickel sheet, the plastic uptake support body is provided with a plurality of positioning grooves and riveting columns, the positioning grooves are fixedly connected in series with the plurality of busbar bodies through the riveting columns, and the collection nickel sheet is connected with the wiring harness assembly. The busbar bodies comprise a series busbar, a bridging busbar, a positive leading-out electrode busbar and a negative leading-out electrode busbar, the blister support body is provided with a wire harness buckle, the wire harness buckle is located between the two groups of busbar bodies, a wire is fixed on the wire harness buckle, the acquisition nickel sheet is welded on the busbar bodies through laser, and the acquisition nickel sheet is upwarped in a non-breaking manner after being welded. According to the plastic uptake support CCS integrated busbar assembly, the wiring harness buckle can simply, conveniently and quickly fix the wiring harness and prevent the wiring harness from being separated from the plastic uptake support, a traditional mode of fixing the wiring harness through hot pressing or hot riveting is replaced, and the product cost is greatly reduced.

The invention relates to the technical field of batteries, and discloses a pole, a cover plate assembly and a battery cell. The pole comprises a plate body; the column body comprises a first column section and a second column section, the first column section is fixedly connected between the plate body and the second column section, the second column section is suitable for being arranged in a riveting hole in the riveting block in a penetrating mode, the second column section comprises two side parts oppositely arranged in the length direction and a middle part connected between the two side parts, and the side parts are flush with the lower surface of the middle part; the upper surfaces of the side parts protrude upwards out of the plane where the upper surface of the middle part is located. The second column section forms an unequal-height structural form, so that the size of the side part is increased, the material expansion quantity provided by the side part is increased, the phenomenon of insufficient material expansion of the side part after the pole column is riveted and pressed is avoided, and the phenomenon that the distance between the side part and the inner wall of the riveting hole is too large after the material expansion of the side part is avoided, so that the welding quality between the pole column and the riveting block is ensured; therefore, the riveting block can be in full contact with the pole, and the resistance value between the pole and the riveting block is prevented from being too large.

The utility model belongs to the technical field of pipe system plugging accessories and pipe plugs, and particularly relates to an internal expansion type hole channel plugging device, a plugging system and a device with a sealing hole. The internal expansion type hole channel plugging device comprises a sealing sleeve and an inner core preset in the sealing sleeve, the sealing sleeve is provided with a closed blocking end face at the far end and an extrusion and expansion side wall formed by extending from the edge, the extrusion and expansion side wall is provided with a conical inner surface, and the inner core is provided with a conical outer surface and an axial threaded hole. A pulling tool is screwed into the threaded hole to apply axial pulling force, so that the conical surfaces extrude each other to cause radial expansion of the sealing sleeve to realize hole channel sealing. The hole channel plugging device can be matched with a rivet nut gun to carry out convenient and reliable hole channel plugging operation. The hole channel plugging technology is suitable for industrial products needing straight hole sealing, such as electric driving devices, injection molds and power battery modules, has the characteristics of high sealing reliability, operation convenience and clean plugging, and effectively solves the problems of scrap pollution, sealing failure and the like of a traditional plugging technology.

The invention discloses an assembly type power switch cabinet, and particularly relates to the technical field of power switch cabinets, the assembly type power switch cabinet comprises a cabinet body frame, a cabinet door, a top plate, a back plate, a bottom plate and two side plates, the cabinet body frame comprises an upper frame body, a lower frame body and four vertical pipes, and the four vertical pipes are distributed between the upper frame body and the lower frame body in a rectangular shape; insertion blocks are welded and fixed to the bottom of the upper frame body and the top of the lower frame body, and insertion holes for the insertion blocks to be inserted are formed in the two ends of each vertical pipe correspondingly, and the insertion blocks on the upper frame body and the insertion blocks on the lower frame body are directly inserted into the four vertical pipes correspondingly. The upper frame body, the lower frame body and the vertical pipes can be locked through the locking mechanism, and meanwhile, the two vertical pipes can be further tensioned, so that the assembling operation of the power switch cabinet can be quickly completed. Therefore, the assembly of the whole power switch cabinet is more efficient.

A blind rivet nut-setting tool for setting a rivet nut including a housing having an anvil, a pull stud for engaging the rivet nut, and an output shaft defining a drive axis. The tool includes a motor defining a motor axis. The motor is configured to transfer torque to the output shaft to rotate the pull stud about the drive axis. The tool includes a clutch mechanism that is disposed between the motor and the output shaft. The clutch mechanism is moveable between an engaged state, in which a reaction torque exerted on the pull stud is below a predefined torque threshold, and a disengaged state, in which a reaction torque exerted on the pull stud is equal to or above a predefined torque threshold. The tool includes a pull mechanism that is driven by the motor and capable of translating the pull stud along the drive axis.

The invention discloses a multi-station rivet welding device for an aluminum alloy vehicle body, which belongs to the technical field of welding and comprises a step plate, a tapping and drilling mechanism, a cleaning mechanism and a friction stir welding mechanism. The tapping and drilling mechanism is used for machining a prefabricated hole with threads on the inner wall in a material piece to be welded, and the automatic screw feeding device further comprises a multi-station moving driving mechanism and an automatic screw feeding mechanism which is arranged below the step plate. When the tapping and drilling mechanism descends to conduct prefabricated hole machining on two materials to be welded, the overturning guide cylinder is overturned to the horizontal position through the resilience force of the coil spring in the descending process and is in matched butt joint with the conveying pipe, and the conveying pipe is driven by the corresponding electric telescopic rod to convey stored rivets into the overturning guide cylinder; and the overturning guide cylinder is overturned to the vertical position and is in butt joint to the position below the prefabricated hole, and automatic feeding and mounting of the rivets are facilitated.

The invention provides a threaded blind rivet and an installation device, an installation method and a preparation method thereof. The threaded blind rivet comprises a core rod, a rivet body and a rivet sleeve. The core rod comprises a head protrusion, a first external thread section, a second external thread section and a clamping section which are sequentially connected, and a neck breaking groove is formed between the first external thread section and the second external thread section. The threaded pulling nail is not provided with a driving nut, so that the driving nut is prevented from being discarded along with the discarded section of the core rod, the cost of the threaded pulling nail is reduced, and resource waste is avoided.

The invention discloses a large-size composite material part machining series-parallel master device, and particularly relates to the field of riveting machining, the large-size composite material part machining series-parallel master device comprises a riveting driving mechanism and a workpiece supporting mechanism, a control box is arranged on the riveting driving mechanism in a sliding mode, a large series-parallel operation mechanism is arranged on the control box, and the large series-parallel operation mechanism comprises a first adjusting seat; the first adjusting seat is arranged on the control box in a sliding mode, a second adjusting seat is arranged on the first adjusting seat, a riveting gun is arranged on the second adjusting seat, the workpiece supporting mechanism comprises a first linear driver, and an anti-deformation mechanism is arranged on the first linear driver. By arranging the workpiece supporting mechanism and driving the workpiece to incline through the supporting station, the riveting gun and the self-plugging rivet are kept in a vertical state, the position and angle of the riveting gun do not need to be adjusted in the machining process, it is ensured that the rivet is evenly stressed, and the riveting quality is improved.

The invention provides a helicopter nose landing gear fatigue test device, and the device comprises a bottom plate which is connected and fixed to a ground grooved rail; the fixed connecting plate is fixed on the bottom plate through a bolt; wherein the lower end connecting structure of the test piece is of a square structure, the periphery of the lower end connecting structure is connected to the fixed connecting plate through rivets, and the airplane wheel fake part assemblies are arranged on the two sides of the upper end connecting structure of the test piece. One end of the loading double-fork lug is connected with the airplane wheel fake part assembly; the torsion-proof bolt is connected with the airplane wheel fake part assembly; one end of the loading single fork ear is connected with the other end of the loading double fork ear; the servo actuation loading mechanism is connected with the other end of the loading single fork lug; wherein the servo actuation loading mechanism is used for realizing loading in the heading direction, the lateral direction and the vertical direction; meanwhile, the invention further provides a helicopter nose landing gear fatigue test method.

A fastening arrangement for connecting a façade panel and a panel holder is provided. The façade panel is a panel with a homogeneous structure; with a front side, a material layer and a rear side. A keyhole-shaped groove is provided on the rear side of the facade panel having a widened insertion opening and a retaining area with an undercut in the material layer. The mechanical connection between the facade panel and the panel holder is a riveted connection using a rivet with a mushroom-shaped head inserted through the insertion opening and into the undercut of the retaining area. The panel holder is pushed onto a free end of the rivet shank that extends out via a through-opening so that the panel holder rests on the cover panel. The rivet shank free end is then formed by a rivet setting tool to create a positive fit between the composite panel and the panel holder.

The invention discloses an automatic assembly method and an automatic assembly line for a high-shear-resistance rivet. The automatic assembly method comprises the following steps that S1, a core rod feeding unit is started; s2, a ring feeding unit is started; s3, a rivet body feeding and tightening unit is started; s4, product detection; and S5, a finished product discharging unit is started, a discharging mechanical arm is used for clamping the qualified high-shear-resistance rivet products and placing the qualified high-shear-resistance rivet products in a collecting material frame, the products are manually taken away after the collecting material frame is full, and automatic assembling of the high-shear-resistance rivet products is completed. According to the automatic assembly method and the automatic assembly line, the intelligent assembly technology is applied, the automatic design and the PLC automatic control technology are adopted, high-shear-resistance rivet product assembly automation is achieved, manual production is replaced with automatic equipment, the productivity utilization rate of existing equipment is effectively increased, the labor condition is improved, and the production efficiency is improved. The labor intensity is reduced, the stability and consistency of the product assembly quality are improved, the product production efficiency is improved, and the requirement for high-quality delivery of products is met.

A pull tab for a container lid includes a nose configured to apply downward pressure on a frangible region of the container lid, a rivet receiving portion adjacent to the nose that includes a rivet aperture therethrough, a lift portion located distally from the nose, and a finger hole located in proximity to the lift portion. Side edges of the finger hole include one or more upward bends, placed such that the lift portion is elevated relative to a bottom plane of the pull tab, thereby facilitating user actuation of the pull tab and enabling efficient stacking of a plurality of the container lids during manufacturing thereof to facilitate shipment and storage thereof. An indentation formed in the container lid cooperative with the lift portion provides additional grasping space. Novel methods of manufacturing are also disclosed.

A buckle according to the present invention has two opposing ends that are removably attached to each other using a locking system. On one end of the buckle, the locking system includes two opposing locking pins coupled to a spring that is fully enclosed and protected from external elements. On the other end, corresponding rivets or pin casings with plungers are operable to receive the locking pins and lock the two ends together or push the pins out of the casings to release the buckle. The buckle may also include a plug that is removably attached to the adjustable loop end and allows the central bar of the adjustable loop end to be removed without deforming the central bar. Alternatively, each end of the buckle may include self-aligning tabs that guide the ends of the buckle for fastening and aid in the stability of the buckle.

The utility model relates to the technical field of rivets, in particular to a hippocampus rivet, which comprises a rivet core and a rivet shell, the rivet core comprises a rivet head, a riveting section, a snapping section and a rivet rod, the peripheral surface of the riveting section is provided with a first annular convex pattern and vertical convex teeth, the first annular convex pattern is arranged at the upper part of the riveting section in a surrounding manner, and the vertical convex teeth are arranged at the lower part of the riveting section. The vertical convex teeth are distributed on the lower portion of the riveting section at intervals in the circumferential direction of the riveting section, and the first annular convex lines and the vertical convex teeth all protrude out of the outer wall face of the riveting section; the nail shell comprises a nail shell body and a nail cap, and through holes are formed in the nail shell body and the nail cap in a penetrating mode. Through mutual cooperation of the first annular convex lines and the vertical convex teeth, tight engagement of the rivet core and the inner wall of the rivet shell can be achieved, the locking force of the rivet core is improved, axial movement and circumferential rotation of the rivet core in the rivet shell can be limited after riveting, the rivet core is effectively prevented from loosening and falling off, the connection strength between riveted workpieces is guaranteed, and the service life of the rivet core is prolonged. The technical problems that an existing hippocampus rivet core is insufficient in locking force, and the rivet core is prone to loosening and falling off after riveting are solved.

The utility model discloses riveting equipment which is used for pressing a pressing rivet nut into a pressing rivet hole of a plate, the plate is provided with at least one pressing rivet hole, the inner wall of the lower end of the pressing rivet nut extends outwards to form an annular inclined convex part, and an included angle space is formed between the inclined convex part and the main part of the pressing rivet nut. The riveting equipment comprises an equipment main body and a riveting device, the riveting device is installed on the equipment main body and comprises a riveting main body, a riveting die and a riveting component, the riveting die and the riveting component are installed on the riveting main body, the riveting die is provided with a die pressing hole, and the die pressing hole is communicated with the riveting device. The inner wall, forming the pressing die hole, of the riveting die protrudes towards the plate to form an annular protruding part, the riveting component comprises a riveting driving piece and a riveting column, the riveting column is connected to the riveting driving piece in a drivable mode, a riveting head is formed at one end of the riveting column, and the riveting head is matched with a screw hole of the pressing rivet nut.

The utility model discloses a double-headed sunken rivet cold heading device, and relates to the technical field of rivet processing equipment, the double-headed sunken rivet cold heading device comprises a base and an electric pressing rod, the electric pressing rod is not connected with the upper end of the base, the upper end of the base is provided with a sliding groove, and the two sides of the interior of the sliding groove are both connected with sliding blocks in a sliding mode. The device comprises two sliding blocks, springs are fixedly connected to the back-to-back sides of the two sliding blocks, molds are fixedly connected to the upper ends of the sliding blocks, inclined blocks are fixedly connected to the back-to-back sides of the two molds, a moving ring is jointly slidably connected to the outer sides of the two molds, and supporting rods are fixedly connected to the two sides of the upper end of the moving ring. The upper end of the supporting rod is fixedly connected with a moving plate, and the upper end of the moving plate is fixedly connected with the lower end of an electric pressing rod. After each processing is finished, the two moulds are reset under the action of the springs, so that materials in the moulds are taken out more conveniently, the condition of mould clamping is avoided, and the processing efficiency is further improved.

The utility model belongs to the technical field of machining and assembling, and discloses an electromagnetic valve punching and riveting integrated machining and assembling device which comprises a sliding assembly, a punching assembly, a scrap removing assembly, a rivet installing assembly and a rivet pressing assembly, an electromagnetic valve is installed on the sliding assembly, and the sliding assembly can drive the electromagnetic valve to move and be fixed in the linear direction. The punching assembly, the scrap removing assembly, the rivet feeding assembly and the rivet pressing assembly are arranged above the linear guide rail of the sliding assembly in the straight line direction. When feeding and discharging are needed, the direction of the manual valve is switched, the sliding block drives the blanking die lower die base to move backwards along the sliding rail, an optical grating on a machine tool can sweep the manual valve, feeding is carried out with hands, the direction of the manual valve is switched, the sliding block drives the blanking die lower die base to move forwards along the sliding rail, and when an LED power indicator light is turned on, it is indicated that the sliding block on the air cylinder moves to the limit stroke; the upper die and the lower die are closed, and the machine tool can continue to conduct punching work. By means of the device, feeding and discharging safety can be guaranteed, and production efficiency is improved.

The utility model belongs to the technical field of riveting processing, and particularly relates to an aluminum back plate processing rivet riveting die, which comprises a base, an ejector pin, an ejector rod, a riveting rod, a riveting rod, a riveting rod, a riveting rod and a riveting rod, and is characterized in that the top surface of the base is provided with a placing groove and an avoiding groove; the positioning die is placed in the containing groove, a positioning groove used for containing the aluminum back plate is machined in the top face of the positioning die, a riveting hole communicated with the positioning groove is further machined in the positioning die, and the riveting hole right faces the ejector pin; the top cover is hinged to the base, an operation hole is machined in the top cover, and a limiting block used for pressing an aluminum back plate is fixed to the inner wall of the operation hole; the aluminum back plate is positioned and placed through the positioning die, the top cover is matched with the base to clamp the positioning die after being closed, the stability of the positioning die is ensured, the positioning die can be taken down to be replaced after the top cover is opened, and the aluminum back plate positioning device is suitable for aluminum back plates of different shapes, wide in application range and beneficial to improving production efficiency.

The invention relates to the technical field of lock catch machining, and discloses lock catch rivet pressing and detecting integrated equipment which comprises an automatic feeding assembly, a clamping and aligning assembly, a rivet pressing assembly, a quality detecting assembly and a marking and discharging assembly. The positioning detection assembly is arranged on one side of the automatic feeding assembly and comprises an electric telescopic rod, and a first wedge block is arranged at the output end of the electric telescopic rod. Through cooperation of the automatic feeding assembly, the clamping alignment assembly, the positioning detection assembly, the press riveting assembly, the quality detection assembly and the marking discharging assembly, press riveting and detection integrated machining production is carried out on lock catches, through cooperation of the clamping alignment assembly and the positioning detection assembly, the assembly precision of the lock catches is improved, and the production efficiency is improved. And the processing quality and the production efficiency of the lock catch are improved.

The invention relates to the technical field of fasteners, in particular to a threaded pulling nail and a preparation method and an installation method thereof. The thread drawing nail comprises a nail sleeve, a core rod, a forming sleeve, a lining and a mounting nut. The forming sleeve and the lining sleeve are arranged on the core rod in a sleeving manner; the nail sleeve and the mounting nut are screwed on the core rod; a threaded hole and a limiting hole are formed in the center of the nail sleeve; a nail sleeve locking shoulder is formed between the limiting hole and the threaded hole; the core rod comprises a clamping section, a first screw section, a second screw section, a limiting step section and a core rod head from top to bottom; external threads with the same shape are arranged on the peripheral surfaces of the first screw section and the second screw section, and a broken diameter groove is formed between the first screw section and the second screw section; the top surface of the head of the core rod is an inverted conical surface and forms a conical surface groove; a core rod stop shoulder is formed on the top surface of the limiting step section; the lower end of the forming sleeve abuts against the interior of the conical surface groove. After the blind rivet is riveted, the limiting step section can be inserted into the limiting hole, and the core rod locking shoulder and the rivet sleeve locking shoulder abut against each other to form limiting.

The invention discloses a self-puncturing riveter which comprises a riveter body, the riveter body comprises a driving part, a C-shaped clamp and a riveter head assembly, the driving part is arranged on the C-shaped clamp, and the riveter head assembly comprises a base; the material belt is arranged on the base in a sliding manner, and a plurality of rivets are arranged on the material belt; the ejector pin is arranged on the base in a sliding mode, and the ejector pin sequentially triggers the rivets under the action of the driving piece; the driving mechanism comprises a linkage piece and a first elastic piece, the linkage piece is arranged on the base in a sliding mode, at least part of the linkage piece is connected with the material belt in a clamped mode, a first inclined face is formed on the linkage piece, and the ejector pin can abut against the first inclined face and slide relative to the first inclined face; one end of the first elastic piece abuts against the linkage piece, and the other end of the first elastic piece abuts against the base. The automatic feeding device can realize automatic feeding, and is simple in structure, convenient to carry and low in equipment production cost.

The present disclosure relates to a can opening and sealing tool with a body portion comprising a lower section and an upper section designed to engage securely with a can's pull-tab. The upper section includes a bar with an indented central portion that provides haptic feedback to confirm successful tab engagement and prevent accidental disengagement. An arm portion extends radially from a connecting portion and is configured to assist a user in pivoting the tool around the can's rivet when the tool is fully engaged with the can. The arm portion's edge interacts with the can’s top annular edge to maintain a flush seal.

The utility model discloses a groove-shaped seat riveting device for automobile mortise lock production, which comprises two vibrating discs, an assembling part and a riveting part, the two vibrating discs are respectively used for conveying groove-shaped seats and rivets to the assembling part, the assembling part is used for assembling the groove-shaped seats, a support and the rivets together and moving the assembled product to the riveting part, and the riveting part is used for riveting the groove-shaped seats, the support and the rivets. The riveting part is used for riveting the rivets, the assembling part comprises a second transferring table and a fourth clamping jaw, the fourth clamping jaw is used for being adjusted and moved to the rivets through a corresponding combined air cylinder, the fourth clamping jaw is reset through the combined air cylinder after the rivets are grabbed, and the grabbed rivets are placed on the second transferring table; the riveting part comprises a station rotary table, a riveting press and a fifth clamping jaw, the station rotary table is used for rotating a support with a groove-shaped seat and a rivet to the riveting press, and the riveting press is used for riveting the rivet. According to the device, the rivet, the groove-shaped seat and the bracket can be automatically obtained, and riveting and fixing treatment is performed after the rivet, the groove-shaped seat and the bracket are assembled.

The utility model relates to the technical field of numerical control rotary tables, in particular to a zero-point positioning device for a rotary table, which comprises a numerical control rotary table and a working table mounted on the numerical control rotary table. A straight guide sleeve male and a conical guide sleeve male are installed on the numerical control rotary table, a straight guide sleeve female and a conical guide sleeve female are installed on the workbench, the straight guide sleeve female is connected with the straight guide sleeve male in a matched mode, and the conical guide sleeve female is connected with the conical guide sleeve male in a matched mode. A piston rod is arranged in the straight guide sleeve male, steel balls are installed on the two sides of the piston rod, and springs are arranged on the left side and the right side of the piston rod. According to the numerical control rotary table, the workbench and the numerical control rotary table body can be freely separated, the workbench can be freely separated from or locked on the numerical control rotary table through the straight guide sleeve male part, the conical guide sleeve male part and the corresponding female part, and the problem that the clamping effect is poor due to unstable clamping force in an existing pop-rivet type structure is solved; therefore, reliable locking and releasing of the workbench under the pressure-free condition are ensured.

The utility model discloses an expansion riveting nut tool which comprises an expansion riveting head and a nut body. The lower end of the expansion riveting head is provided with an expansion riveting end, a spring piece arranged on the expansion riveting head in a sleeving mode is arranged above the expansion riveting end, and the upper end of the spring piece abuts against the upper end of the expansion riveting head. A flanging table is arranged at the upper end of the nut body, and an expansion riveting hole allowing the expansion riveting end to penetrate through the nut body is formed in the flanging table, so that the flanging table forms an outer flanging abutting against the surface of a plate after the expansion riveting end penetrates through the expansion riveting hole; the problem that a traditional rivet pressing process cannot meet the requirement for larger torque can be solved, the nut is pressed into the nut body through the rivet expansion end at the lower end of the rivet expansion head so that the nut can be pressed to form the outer flanging abutting against a plate, and the advantage of larger thrust is achieved through combination of the outer flanging and the plate; the spring piece arranged on the expansion riveting head in a sleeving mode can exert thrust in the reverse direction of the expansion riveting head at the moment of expansion riveting of a plate and the nut body, so that the performance of the machined plane meets the requirement, the riveting process level is higher, and the practical value is high.

The utility model discloses a multifunctional self-puncturing connecting rivet, which is characterized in that a self-puncturing connecting riveting part used for being riveted with a plate in a self-locking manner is integrally formed on one side of a flange plate, and a connecting part used for being connected with a part in a matching manner is integrally formed on the other side of the flange plate, so that the rivet can be connected with the part while being riveted and fixed with the plate; a plurality of connecting pieces do not need to be arranged on the plate, so that the damage to the plate structure and the mounting cost are reduced, and the functionality of the rivet is improved; meanwhile, the rivet and the plate are made of the same material, and the strength of the rivet is higher than that of the plate, so that physical and mechanical characteristics such as thermal expansion coefficient, elastic modulus and yield strength between the rivet and the plate are similar, stress concentration caused by material difference is reduced, and the risk of cracks is reduced; therefore, the integrity, the stability and the reliability of connection are improved.

The application relates to a high polymer vacuum bottle based on elliptical buckle replacement and anti-static and a preparation method thereof, and aims to solve the technical problems that the inner bottle and the outer bottle of the existing similar products are less fixed by the combination of a large circle and a middle circle, and the carrying and locking modes are relatively single. The main points are that an inner thread of the large circle is provided with a buckle rib, an inner shoulder circle bottom of the large circle is provided with an upward and obliquely arranged bevel circle, an outer diameter above the buckle rib of the large circle is provided with a gear circle rib, the buckle rib of the large circle is buckled and fixed in an inner buckle groove of the middle circle, meanwhile, the large circle is sleeved and fixed in the middle circle through the gear circle rib, and the middle circle and the large circle are connected as a whole; the bottom of the middle circle is buckled and fixed at a top outer bottle mouth of the outer bottle, and a top inner bottle mouth of the outer bottle is abuttingly fixed at the bottom of the bevel circle of the large circle; a top locking piece of an outer cover top is hingedly arranged at one end and rotates, when the top locking piece rotates to one side of the outer cover, the top locking piece is fixed in a locking hole of a bottle locking piece through rivet knob interference locking.

The invention relates to a ring groove rivet sleeve and a high-strength ring groove rivet for aerospace, the rivet sleeve comprises a bulged section, a connecting section and a locking section which are sequentially distributed in the axial direction, and the material strength of the bulged section and the locking section is smaller than that of the connecting section. According to the rivet sleeve, the bulged section, the connecting section and the locking section are sequentially distributed in the axial direction, the bulged section penetrates through the hole of the connected piece during riveting, the connecting section is located in the hole in the connected piece, the locking section abuts against the side face of the connected piece, the bulged section is bulged and deformed in the riveting process, and the locking section is located in the hole in the connected piece. Meanwhile, the locking section is extruded to deform and is filled into a thread groove in the rod part of the nail rod to realize locking; due to the fact that after riveting is completed, the rivet mainly bears shearing force through the connecting section, the material strength of the connecting section is set to be larger than that of the bulging section and the locking section, smooth deformation of the bulging section and the locking section can be guaranteed, meanwhile, the structural strength of the connecting section is improved, the connecting section has high shearing strength, and the service life of the rivet is prolonged. And the shear resistance of the rivet can be effectively improved.