116results about "Pins" patented technology

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.

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 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.

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.

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 relates to the technical field of pipe fittings, in particular to a liquefied natural gas pipeline installing and positioning assembly which comprises a connecting disc, the connecting disc is installed between two liquefied natural gas pipelines, flanges are fixed to the ends of the liquefied natural gas pipelines, a plurality of screws are fixed to the two sides of the connecting disc respectively, and rubber sleeves are arranged on rod bodies of the screws in a sleeved mode. One end of the screw rod is sleeved and screwed with a nut, the outer ring surface of the connecting disc is provided with a rubber cover, and the rubber cover wraps the flange; the device has the beneficial effects that the rubber cover arranged on the outer ring surface of the connecting disc can wrap and protect the screw rod and the nut. After the screw rod and the nut are in threaded connection, the rubber cover is pulled out of the containing groove and arranged on the flange in a sleeving mode, the rubber ring is arranged at the connecting position of the liquefied natural gas pipe and the flange in a sleeving mode, erosion of external water vapor to the screw rod and the nut can be effectively reduced, the service life of a connecting part is prolonged, and the maintenance cost is reduced.

This utility model discloses a leak-proof check valve, belonging to the field of check valve technology. It includes a valve body and a valve cover. The valve body has an installation tube at its top, and an installation groove at its top. The valve cover is embedded in the installation groove, and a spring abuts against its bottom. A valve core is fixedly connected to the bottom of the spring. Multiple annularly distributed connecting grooves are formed on the inner wall of the installation groove. Connecting blocks that mate with the connecting grooves are slidably installed around the valve cover. A cavity is formed inside the valve cover, and a screw is rotatably installed within the cavity. A nut is fixedly connected to the upper end of the screw, and a slider is threaded onto the screw. A connecting rod is hinged between the slider and the connecting blocks. By using the connecting grooves, connecting blocks, screw, nut, slider, connecting rod, and limiting rod, the use of bolts is reduced, making the disassembly and assembly of the valve cover more convenient and improving the maintenance efficiency of the check valve.

A wheel nut of a vehicle wheel assembly can comprise a base section, which includes a receiving opening located at a first end of the wheel nut and configured to receive a lug of a hub of the wheel assembly, and a secure wheel nut wrench interface located at a second end opposite the base section. The secure wheel nut wrench interface can comprise a central section centered along a vertical axis of the wheel nut and a plurality of pillars surrounding the central section. First outer edges of the plurality of pillars located at the second end can define at least the vertices of a first hexagonal pattern. The plurality of pillars can be spaced apart from the central section at the second end. The first outer edges of the plurality of pillars can be separated by gaps between each individual pillar of the plurality of pillars.

The anti-theft bolt assembly includes a bolt body and a nut sleeve. By setting the nut sleeve and through the buckle connection of the buckle end and the buckle groove, the stable connection of the nut sleeve and the nut part is realized. The design of the cross groove facilitates normal tightening or loosening operation with a cross screwdriver and the like. After the nut sleeve is installed in place, the anti-theft structure can cover the cross groove, effectively preventing unauthorized disassembly behavior, increasing the safety of the bolt assembly and avoiding the possibility of illegal disassembly. This design not only improves the anti-theft performance of the bolt assembly, but also ensures its convenience in normal use.

This utility model relates to the field of tower reinforcement technology and discloses a tower bolt anti-loosening fastener. The anti-loosening fastener includes a fastener body with a through-hole hexagonal bolt threaded inside. It also includes a pressing fastening mechanism, which includes a fixing sleeve fitted onto the top of the hexagonal bolt. Multiple sets of baffles are equidistantly installed on the outer side of the fixing sleeve, with the baffles radially arranged around the axis of the fixing sleeve. A pressing seat is also inserted inside the fastener body, with pressing grooves equidistantly formed inside the pressing seat corresponding to the baffles. A washer is placed at the bottom of the fastener body, aligned with the center, and the hexagonal bolt is inserted to connect to the tower equipment. The bolt is rotated to complete the initial installation. The pressing seat is then inserted, causing the cross baffle to abut against the pressing groove. A limiting block enters the limiting groove to limit the pressing seat, thereby restricting the rotation of the hexagonal bolt, preventing the tower bolt from loosening, and ensuring the stability of the tower structure.

The application relates to the technical field of electric actuators, in particular to a plug-in sealing mechanism and an electric actuator containing the same, which comprises a shell and a plurality of threaded holes arranged on one side of the shell, and further comprises: a junction box, a plurality of mounting holes are arranged on the junction box, and the number of the mounting holes is the same as that of the threaded holes; a slot is arranged on the shell and located on one side of the threaded holes and communicates with the threaded holes; a movable plate is arranged in the slot, a circular hole is arranged on the movable plate, and the diameter of the circular hole is the same as that of the threaded holes; and a switching assembly is arranged in the slot and used for driving the movable plate to move horizontally. The plug-in sealing mechanism provided by the application links the movable plate through the switching assembly, shields the threaded holes in a normal state, avoids impurities from invading and threaded corrosion, links and opens only during assembly, and guarantees the reliability of threaded connection.

A system for removing a cap seal from a fastener, includes a seal remover including fingers outwardly extending from a base. The fingers include one or more first fingers and one or more second fingers. The one or more first fingers are sized, shaped, or configured differently than the one or more second fingers. Passages are defined between the fingers. The seal remover is configured to be coupled to a distal end of an operative portion of a tool. The tool is configured to be operated to rotate the seal remover in relation to the cap seal so that the fingers remove the cap seal from the fastener. Removed portions of the cap seal are discharged through and out of the passages.

The utility model relates to high -strength bolt technical field discloses a novel high -strength bolt connection structure, including bolt body, the threaded surface rotation of bolt body is connected with nut, the threaded surface sliding connection of bolt body has first gasket, the threaded surface sliding connection of bolt body has second gasket, two threaded rods are inserted to the first gasket inner thread, the surface of second gasket is provided with a plurality of threaded holes, the surface fixed connection of first gasket has two rotating blocks, two rotating blocks are connected with rotating lever in the side of each other close rotation, the circular arc surface fixed connection of rotating lever has the protective housing, the surface fixed connection of first gasket has square block. This novel high -strength bolt connection structure avoids the junction of bolt body and nut in the long -time use process because of the vibration and produces the loosening, causes the fixed effect of bolt body and nut to reduce the situation to appear.

This provides a screw joint configuration that includes a retainer function for screws and also allows for positional adjustment of the two components. [Solution] A screw joint arrangement comprising a first member having one screw receiver, first and second threaded bore portions, a second member having a bore with an unthreaded bore portion separating the threaded bore portions, and a screw shaft having a screw head and a threaded portion. The first member is positioned next to the second member with the first threaded bore portion in close proximity to the first member. The screw joint arrangement can be set between a first state in which the second member is fixed to the first member and a second state in which it is movable by rotation of a screw. In the first state, one of the screw receivers and the bore are aligned and the screw shaft passes through at least one of the screw receivers and extends into the bore with the threaded portion screwed into the second threaded bore portion so that the first member is clamped between the screw head and the second member.

The utility model discloses an adjustable buckle structure of automotive trim part belongs to buckle structure field, including fixed base, self -tapping screw, the top of fixed base is installed with rotary adjustable buckle mechanism, the rotary adjustable buckle mechanism includes movable card body, rotation axis, adjusting knob, unlocking thimble, boss, damping ring, the inside installation of movable card body has rotation axis, and the top of rotation axis is connected with adjusting knob, and the outside installation of movable card body has unlocking thimble and boss, and the surface of movable card body is provided with annular groove, and the annular groove is installed with damping ring, through the cooperation of above -mentioned each device, can realize the adjustment of buckle length, effectively solved the assembly problem that caused because trim part and installation base body exist size deviation, improved the compatibility of buckle.

The utility model relates to a kind of bolt of repeatedly disassembling not easy to damage thread, including bolt body, nut group and bolt head, the nut group is threadedly connected to the outside of bolt body, bolt head is assembled in the top of bolt body, the outside of bolt body is sleeved with rubber gasket, limiting ring is assembled between the nut group and bolt head, the upper and lower ends of the limiting ring are connected with T-shaped slider, the top of nut group is provided with first annular groove, first clamping groove is embedded in the inner chamber both sides of first annular groove, first vertical groove is set in the top left and right ends of first annular groove.Repeatedly disassembling not easy to damage thread of bolt, by the T-shaped slider and first clamping groove and second clamping groove of additional, when limiting ring is self-locked between bolt body and nut group, the position of bolt body is automatically locked, so as to inhibit the loosening of bolt body, improve the stability of device overall, avoid producing alignment deviation and vibration when using.

The application relates to the technical field of nut parts, and discloses a press riveting nut which comprises a press riveting nut body, a top cover and a bottom cover, the inside of the top cover and the inside of the bottom cover are fixedly connected with stepped plugs, and the surfaces of the stepped plugs are fixedly connected with a plurality of magnetic rings. The press riveting nut can seal the two ends of the press riveting nut body to form a sealed cavity through the arrangement of the top cover and the bottom cover. The stepped plugs facilitate the use of press riveting nut bodies with different inner diameters. Under the action of the magnetic rings, the top cover and the bottom cover can be quickly disassembled without the need for a plug-in structure when being installed. The long positioning teeth and the short positioning teeth are alternately arranged to alternately form multi-stage engagement. The stress concentration is reduced, and the tooth part is prevented from being broken through the design of the gradually changed cutting-in angle and the arc-shaped transition surface. The multi-stage engagement is realized through the long-short-tooth alternate layout and the cutting-in angle gradually changed design, the tensile strength is improved by 30%, and the installation offset is reduced by 50%.

The utility model discloses a bolt fastener for electric power fittings, which comprises a bolt part, the surface of the bolt part is in sliding connection with a sliding sleeve, the surface of the sliding sleeve is sleeved with a protective cover, one side of the protective cover is inserted with a sealing assembly, the surface of the bolt part is in sliding connection with an extrusion assembly, and the extrusion assembly is connected with the sliding sleeve. And one side of the extrusion assembly is fixedly connected with a fixed ring, the sealing assembly comprises a movable ring inserted into one side of the protective cover, one side of the movable ring is fixedly connected with a plurality of sets of supporting springs in an annular array, and one end of each supporting spring is fixedly connected with a sealing ring. Through the arrangement of the protective cover, the sealing assembly and the sliding sleeve, the effect of sealing and protecting the joint between the bolt piece and the electric power fitting is achieved during use, it is ensured that the sealing ring is tightly attached to the surface of the electric power fitting all the time, water and dust are effectively prevented from entering the joint, and the service life of the bolt fastener is prolonged.

The application discloses a plastic-coated bolt for an automobile, which comprises a bolt body, wherein the bolt body is composed of a head and a screw rod, the head is installed at the top end of the screw rod, and a compression structure is installed at the bottom end of the head; one end of the compression structure is connected with the bottom of the head, and the other end is sleeved on the screw rod. Through the above mode, the plastic-coated bolt for the automobile adopts the compression structure, and the anti-wear material is arranged on the bottom surface of the head, so that the utilization rate of the anti-wear material is improved.

This utility model relates to the field of bolt technology and discloses an anti-loosening and anti-theft bolt, including a screw, a pin fixedly connected to the bottom end of the screw, a nut fixedly connected to the top end of the screw, a flat groove inside the nut, a support shaft fixedly connected inside the pin, a connecting post fixedly connected to the outer wall of the support shaft, and an anti-loosening component provided on the outer wall of the connecting post. The anti-loosening component includes a conical block, which is slidably connected to the outer wall of the connecting post. A spring is sleeved on the outer wall of the connecting post, with its two ends fixedly connected to the conical block and the support shaft, respectively. In this utility model, the displacement of the connected component causes the pin to be stressed, which in turn causes the conical block to slide along the connecting post and compress the spring. The elastic restoring force of the spring pushes the conical block to expand outward. These structures work together to effectively prevent the bolt from loosening, thereby improving the stability of the bolt.

This utility model provides an anti-vibration screw with an elastic sleeve structure, belonging to the field of screw technology. It includes a main screw, a main nut fixedly connected to the top of the main screw, an upper elastic sleeve threadedly connected to the top of the main screw, and a lower elastic sleeve threadedly connected to the bottom of the main screw. An upper anti-slip seat is provided on the top of the upper elastic sleeve, and a lower anti-slip seat is provided on the bottom of the lower elastic sleeve. Several circular protrusions are distributed at the bottom and top of the upper and lower anti-slip seats in a wave-like pattern. A trapezoidal waterproof plug is provided at the bottom of the main nut, and a trapezoidal groove is provided on the top of the upper anti-slip seat. The size of the trapezoidal waterproof plug matches that of the trapezoidal groove. This utility model provides an anti-vibration screw with an elastic sleeve structure. By connecting the anti-slip nut to a hard drill bit, a reverse pulling force is formed. The hard threaded sleeve is connected to the corresponding threaded groove on the lower anti-slip seat, improving the tightness of the connection between the lower anti-slip seat and the anti-slip nut.

This utility model provides a turbine flow meter housing and a protective structure for the housing, including a flange disposed at the end of the pipeline and the housing; a plurality of bolts disposed in the mounting holes of the flange; and a protective structure sleeved on the nuts and / or bolts, including a bottom gasket disposed on the mounting side of the nuts and / or bolts, with multiple sealing portions circling from the center outward on the side of the bottom gasket facing the mounting side. This utility model, by sleeved on the end faces of the nuts and bolts, allows the bottom gasket to be pressed between the end faces of the flange and the nuts and bolts, forming multiple sealing portions that enhance the compressive force between the flange and the end faces of the nuts and bolts, improve the sealing performance of the nut and bolt positions, prevent corrosive liquids from entering the bolt connection surface from gaps, effectively solve the problem of bolt corrosion, and thus stabilize the fastening force between the housing and the pipeline.

The utility model discloses a kind of strong pressure nut, including nut main body, the nut main body is equipped with bolt hole, the nut main body is located bolt hole out and is equipped with internal thread;The nut main body inside equal interval is equipped with multiple limit holes, and the nut main body is located limit hole and is equipped with compression column.The utility model, the nut main body inside equal interval is equipped with multiple limit holes, and the nut main body is located limit hole and is equipped with compression column, compression column improves the compression resistance effect of nut main body, and then avoid the nut of plastic piece due to extrusion and damage.

This utility model relates to the field of nut technology and discloses an integrated washer nut, comprising a main body with a threaded groove inside. A protective component is installed on the top of the main body, and a connecting block is fixedly connected to the bottom of the main body. A washer is fixedly connected to the bottom of the connecting block, and a fastening component is provided inside the main body. The protective component includes two mounting blocks, which are slidably connected to the top of the main body. A protective block is fixedly connected to the top of the two mounting blocks. Two sliding grooves are formed on the top of the main body, and a locking groove is formed on one side of each sliding groove. A locking block is fixedly connected to one side of each mounting block. In this utility model, the cooperation structure of the sliding mounting blocks and locking blocks allows the protective block to be quickly installed and removed, forming a top sealing barrier that effectively prevents external dust and liquid from entering the threaded groove. Combined with a galvanized protective layer, the corrosion resistance of the nut is improved, and the service life of the nut is extended.

The utility model relates to bolt protection technical field discloses a water turbine main shaft bolt protection device, including bolt, protection cover and screw, the bolt is located in the protection cover and will be connected on the runner main shaft flange, the protection cover is fixed on the bolt through the screw, its characterized in that, the protection cover completely seals the bolt on the main shaft flange. Protect the bolt from being eroded by water, improve bolt life, reduce maintenance cost.

The utility model relates to the technical field of bolt in concrete, disclose a kind of bolt in concrete, including, bolt main body, the upper fixed arrangement of bolt main body has screw head, the lower arrangement of screw head has baffle, the lower arrangement of baffle has color gasket, the one end of color gasket is rotated in bolt main body near screw head, for warning not to spin, the utility model discloses bolt introduces high-low tooth combination structure in thread end part, and low tooth structure makes the bottom diameter of this section thread and outer diameter slightly reduce, can effectively prevent the local torque dramatic increase caused by multiple tooth engagement, avoid bolt end material damage or breakage, solve the problem that traditional concrete bolt is easily broken due to torque sudden increase when being screwed into end, improve the use reliability and durability of bolt, and low tooth also plays the role of " fulcrum " or interference site on structure, can effectively improve the anti-seismic property and anti-loose ability of bolt.