10789results about "Bolts" patented technology

There is provided a copolymer containing tetrafluoroethylene unit and perfluoro (propyl vinyl ether) unit, wherein the copolymer has a content of perfluoro (propyl vinyl ether) unit of 5.6 to 6.38 by mass with respect to the whole of the monomer units, a melt flow rate at 372° C. of 17.1 to 23.0 g / 10 min, and the number of functional groups of 50 or less per 106 main-chain carbon atoms.

A security fastener assembly is provided with a cap having a decorative bearing surface and a lower retention portion. A fastener body has: a threaded portion or securing the fastener assembly to a corresponding threaded feature on a vehicle; a stem opposite the threaded portion for receiving the cap, the stem having a security protrusion defining a distal end, an undercut formed adjacent the stem for cooperating with the lower retention portion of the cap, where the lower retention portion of the cap is secured in the undercut to maintain the cap on the fastener body; a keyed security drive feature formed between the threaded portion the stem portion where the fastener body is removable with the keyed security feature. Engaging the decorative bearing surface of the cap and rotating does not rotate the threaded portion of the fastener body.

To provide an anti-theft device that makes it difficult to remove a fish finder from a mount to prevent theft.SOLUTION: An anti-theft device 2 prevents the theft of a fish finder 1 attached to a mount 7 with a mounting screw 13, and includes: a base 15 that is fixed to the mount 7 together with the fish finder 1 with the mounting screw 13; a cover 20 that can be attached to the base 15 so as to cover the mounting screw 13; and a lock 22 for locking the cover 20 so that it cannot be removed from the base 15.SELECTED DRAWING: Figure 3

A reaction washer includes a main body that defines an inner diameter that slidingly receives an associated threaded element therethrough so as to define a rotation axis. The main body includes a top surface and a bottom surface that face in opposite directions. The reaction washer also includes a first raised friction inducing surface that extends from at least one of the top surface and the bottom surface so as to be nonconcentric with respect to the rotation axis.

To provide a gaming table that can improve maintainability. 【Solution means】 It includes a certain screw and a magnet, and is configured to be able to hold the certain screw removed from the gaming table by the magnetic force of the magnet.

A threaded fastener for securing a plate to a layered substrate is provided, as well as methods for installing the threaded fastener. An exemplary threaded fastener may include a head, and a shank having a longitudinal axis between a first end and a second end. The shank may be connected to the head at the second end. The shank may have a pointed terminus at the first end. The shank may have a first portion between the first end and a transition region. The first portion may include a first thread having a first thread profile that encircles the first portion. The shank may have a second portion between the transition region and the second end. The transition region may reside between the first portion and the second portion. The second portion may include a second thread having a second thread profile that encircles the second portion.

A threaded fastener for securing a plate to a layered substrate is provided, as well as methods for installing the threaded fastener. An exemplary threaded fastener may include a head, and a shank having a longitudinal axis between a first end and a second end. The shank may be connected to the head at the second end. The shank may have a pointed terminus at the first end. The shank may have a first portion between the first end and a transition region. The first portion may include a first thread having a first thread profile that encircles the first portion. The shank may have a second portion between the transition region and the second end. The transition region may reside between the first portion and the second portion. The second portion may include a second thread having a second thread profile that encircles the second portion.

A directional fixing device includes a base including a barrel, an annular portion and a channel, a socket set outside the barrel and having a top operation indication structure, a pointing convex portion protruding from the operation indication structure and a lifting structure recessed inside the operation indication structure, the lifting structure being formed from top to bottom with a first positioning groove, a guide ramp and a second positioning groove; a fixing member mounted with an elastic member and having a rod body provided with a through hole at the top and a positioning block at the bottom; and a sliding member fixed through the through hole of the fixing member with one end thereof stopped against the second positioning groove to form positioning.

A compact support and fixing device for furniture shelves includes a casing containing a pin compressing a spring between positions of maximum extraction and maximum retraction inside the casing, and a cam for controlling the movement of the pin. The casing has a hollow body with an end wall having a through hole to receive a free terminal end of the pin and another end having an opening to receive a closing plug. The pin has a first end portion of smaller diameter, an intermediate section having a flat surface with a recess receiving an eccentric lobed element of the cam acting on a through opening of the recess, thus determining the movement of the pin between maximum extraction and maximum retraction by rotation of the cam. Retaining elements for retaining the cam inside the hollow body of the casing in an operating position, after insertion, are also provided.

Alloy elements are reasonably matched, N and nitrides are added to form elements such as tungsten W, vanadium V, niobium Nb, cobalt Co, rare earth RE and the like for microalloying smelting, a forged and rolled material finished product is subjected to proper heat treatment, and the stainless steel subjected to heat treatment has good heat treatment performance through metallographic observation. According to the stainless steel, nanoscale carbides are separated out in a solid solution state, and fine particles mainly containing nitrides are dispersed and separated out in crystals in a thermodynamic state, so that the material is strengthened and does not diffuse to a crystal boundary, and the room-temperature mechanical property and the high-temperature mechanical property of the material are greatly improved; and when the stainless steel material produced by the method is used for manufacturing related products, the thickness of the stainless steel material can be reduced, and the overall input of the stainless steel material is greatly reduced, so that the large-scale application of noble metal strategic resource nickel is saved, and the aims of saving resources, energy and investment are fulfilled.

A wall fastener assembly for use with a building wall system, with the wall fastener assembly including a fastener and an elongated, semi-rigid seal member. The fastener includes a shaft and a head, with the fastener configured to be secured to the wall system. The seal member includes opposed first and second ends, and a center bore that extends along the length of the seal member and is configured to receive the shaft of the fastener. When the fastener is secured to the wall system the first end of the seal member is configured to compress against a portion of the wall system, such as against a vapor barrier, to form a first seal and the opposite second end of the seal member is configured to form a second seal to thereby seal the wall fastener assembly against the wall system.

The utility model provides an automatic cold heading mechanism for a long-rod bolt fastener, which comprises a frame and a side plate, a base is fixedly mounted at the top of the frame, a driving mechanism is arranged on the side wall of the frame and is in transmission connection with a rotating shaft, a cutting mechanism is fixedly mounted on the side wall of the frame, and the side plate is fixedly connected with the side wall of the frame and is in transmission connection with the rotating shaft. The side plates are fixedly connected with the two ends of the transverse plate correspondingly, and a clamping mechanism is arranged on the surface of the transverse plate and correspondingly arranged on one side of the cutting-off mechanism. Raw material conveying of long-rod bolt fasteners is achieved through the machine base, the multiple conveying rollers are used for stably conveying the raw materials, end clamping and fixing are achieved through the clamping sleeve, meanwhile, stable limiting of the clamping sleeve is achieved through cooperation of a transverse plate and a guide rod, and the raw materials can be stably fixed during cold heading operation; after the movable upsetting head is used for punch forming, rapid blanking is conducted through separation of the clamping sleeve, blanking collection is conducted after raw materials are cut, the cold upsetting machining efficiency is improved, and it can be guaranteed that cold upsetting operation is conducted smoothly.

The invention relates to a three-dimensional adjustable hyperbolic special-shaped GRC curtain wall system, and belongs to the technical field of curtain walls. The three-dimensional adjustable hyperbolic special-shaped GRC curtain wall system comprises a keel frame, a curtain wall plate and a connecting cross rod, the connecting cross rod is fixedly connected to the end, facing the keel frame, of the curtain wall plate, and the surface of the connecting cross rod is sleeved with a connecting component in threaded connection with the keel frame; the connecting component comprises a first locking assembly in threaded connection with the keel frame, the top of the first locking assembly is fixedly connected with a depth adjusting assembly, and the top of the depth adjusting assembly is fixedly connected with a lateral adjusting assembly; an installation worker can trigger the anti-loosening assembly to discharge the liquid sealant while installing the second locking assembly, and the connecting components are integrally bonded and fixed together, so that the problem that an existing hyperbolic special-shaped GRC curtain wall system with a three-dimensional adjustable function is prone to loosening and even falling off due to the influence of external force is solved.

Fasteners, drivers, punches, fastener systems, and methods of making fasteners, drivers, punches, and fastener systems are disclosed herein. The fasteners, drivers, punches, and fastener systems include, in one example, stabilizing ribs and corresponding recesses.

A solar mounting system includes at least one photovoltaic module (“PV module”) having a module frame and a support structure including at least one elongated support rail configured to support the at least one photovoltaic module (“PV module”). A fastener assembly or hardware stack is used to mount and secure the at least one PV module to the elongated support rail of the solar mounting system. The fastener assembly includes a fastener having a fastener head including at least one abutment surface that prevents rotation of the fastener during mounting of the PV module to the support structure, and, optionally, at least one projection that pierces a protective coating applied to the PV module to thereby establish an electrical bond and grounding of the PV module with the support structure during installation.

The utility model provides a threaded connecting piece and battery pack, wherein the threaded connecting piece comprises a threaded rod and a flange plate, the threaded rod is used for being in threaded connection with a piece to be connected, the flange plate is provided with a press fit surface, one end of the threaded rod is connected to the press fit surface, the press fit surface is used for being pressed on the piece to be connected, and the threaded rod is connected with the flange plate. An anti-scraping cambered surface is arranged around the periphery of the pressing surface, and the anti-scraping cambered surface and the pressing surface are arranged in a tangent manner. The threaded connecting piece provided by the utility model can solve the technical problem that the threaded connecting piece is easy to cut out flying wires and chippings on a piece to be connected.

The invention relates to a screw cold heading device and a cold heading process thereof. The screw cold heading device comprises a supporting plate. Synchronous wheels are oppositely arranged on the left side and the right side of the front end of the supporting plate, a synchronous belt is arranged on the outer sides of the two sets of synchronous wheels, the synchronous belt is of a runway-shaped structure, and mounting blocks are distributed on the periphery of the synchronous belt. According to the screw cold heading device and the cold heading process thereof, the conveying and cutting-off integrated mechanism is arranged, a horizontal wheel is used for horizontally clamping and positioning a wire, a vertical wheel is attached to the front end wall and the rear end wall of the wire for extrusion, and therefore the wire is straightened; according to the screw cold heading machine, corresponding shearing operation in the wire conveying process can be guaranteed, driving elements are reduced, conveying and shearing can be automatically carried out, the wire conveying efficiency is improved, and the screw cold heading efficiency is further improved.

The invention discloses a wire cutting machine for screw production. The wire cutting machine comprises a base, a feeding cutting device arranged at one end of the base and a cold heading device arranged at the other end of the base. The feeding and cutting device comprises a cutting base, and the cutting base is provided with a straightening groove position and a forming positioning hole. The cutting seat is provided with a material pushing mechanism on one side of the straightening slot position; the pushing mechanism is provided with a pushing shaft which is arranged in the forming positioning hole in a sliding mode. The cutting base is provided with a cutting assembly. A straightening device is arranged at the position, corresponding to the straightening groove position, of the base; the straightening device is provided with a straightening channel; the straightening device is in one-way transmission connection with the pushing mechanism; a material moving mechanism is arranged at the position, corresponding to the straightening channel, of the base; continuous production of screws is achieved, so that the production efficiency is improved, the coordination time of cutting and cold heading is effectively shortened, and the consistency of products is better.

According to the composite protective coating for the bolt surface, the preparation method and the application, the composite coating takes a bolt of a common model of an iron tower as a substrate, and a cathode arc ion plating technology and a magnetron sputtering technology are combined; the preparation method comprises the four main steps of substrate surface pretreatment, metal bonding layer preparation, metal nitride bearing layer preparation and surface molybdenum disulfide solid self-lubricating layer preparation. According to the method, reliable preparation of the composite coating on the complex thread surface of the bolt is achieved, the anti-loosening capacity of the bolt is remarkably improved through the low friction coefficient, good bearing capacity and excellent wear resistance, and meanwhile the composite coating further has good corrosion resistance and has wide application prospects in iron towers for communication, electric power and the like.

A lock tab washer includes a washer body, the washer body defining a first side and a second side opposite the first side, the washer body defining a hole therethrough; an edge tab extending from the first side of the washer body, the edge tab define a first section and a second section, the second section bent relative to the first section; a nut tab extending from the second side of the washer body, the nut tab bent relative to the washer body; and a wing extending from the nut tab, the wing bent relative to the nut tab.

A flexible U-bolt assembly includes a clamping bracket including a receiver and a U-bolt including (a) a first end fixed to the clamping bracket, (b) a second end adapted for receipt in the receiver and (c) a flexible elongated body extending between the first end and the second end.

A connector having a head that holds a first component and a body connected to the head. The body has a central channel extending along a central axis of the connector, and the central channel receives a fastener. The body has at least two resilient legs. The resilient legs extend obliquely toward the central axis in a direction from the body to the head. The resilient legs engage with the fastener, to attach the connector to the fastener.

Examples relate to a wing-nut (114) for a tolerance compensating fastener (100) cooperable with a threaded fastening element (116). The wing-nut (114) having a rigid insert (306) and a body component (300). The rigid insert (306) formed as a hollow cylindrical body and comprising a plurality of retention elements (308) and a plurality of threads (302) formed on an inner wall of the hollow cylindrical body. The body component (300) surrounding the rigid insert (306), the body component (300) having an opening, coaxial with a central longitudinal axis of the rigid insert (306), to create a through-hole with the hollow cylindrical body to receive the threaded fastening element (116). Each of the plurality of retention elements (308) is encapsulated by the body component (300) to be interlocked and fixed in the body component (300).

Described is a sealed fastener assembly for attaching a first component to a second component via a male fastener having a head and a shank. The sealed fastener assembly includes a seal and a retainer clip. The seal has a generally planar surface and a seal opening. The retainer clip has a body portion comprising a first plate that is resiliently connected to a second plate via a clip sidewall to define a channel. The second plate comprises a recessed seal pocket configured to receive at least a portion of the seal. The retainer clip is configured to receive at least a portion of the first component via the channel.

The invention discloses a photovoltaic mounting bracket for a roof photovoltaic power generation panel, and relates to the technical field of photovoltaic power generation panel mounting brackets, the photovoltaic mounting bracket comprises two photovoltaic mounting brackets, the periphery of each photovoltaic mounting bracket is provided with at least four fixing screws, and the two photovoltaic mounting brackets are jointly provided with a cross brace fixing assembly. The transverse support fixing assembly comprises an L-shaped rotating rod and a square rotating rod, the L-shaped rotating rod and the square rotating rod are rotationally connected to the sides, close to each other, of the two photovoltaic mounting supports respectively, a tightening groove is formed in the L-shaped rotating rod, and the bottom of the L-shaped rotating rod is sleeved with a sealing protection plate; an L-shaped rotating rod and a square rotating rod form a whole, and the L-shaped rotating rod, the square rotating rod and the roof are fixed through bonding of polystyrene foam, so that the problem that an existing connecting rod is suspended and cannot be fixed to the roof is solved, the situation that a photovoltaic power generation panel shakes in strong wind or rainstorm weather due to suspension of the connecting rod is avoided, and the service life of the photovoltaic power generation panel is prolonged. And the stability of the photovoltaic power generation panel in the use process is ensured.

The invention discloses a double-acting integrated hydraulic nut and a hydraulic nut system. The double-acting integrated hydraulic nut comprises a cylinder body, a piston, a cylinder cover, a locking nut, an outer hexagon head bolt and a locking sleeve. A mounting plane attached to a workpiece is arranged at the bottom of the cylinder body, and the piston is arranged in an inner cavity of the cylinder body in an axial sliding mode. The outer hexagonal head bolt sequentially penetrates through the axial through hole of the piston and the bottom of the cylinder body, and the threaded end of the outer hexagonal head bolt is meshed with a workpiece in a threaded mode. The cylinder cover is arranged at the top of the cylinder body; the locking nut is in threaded connection with the piston rod and is in contact with the top surface of the cylinder cover; a pressurizing oil port connected with a hydraulic pump station is formed in the side wall of the cylinder body. The hexagonal head of the outer hexagonal head bolt is sleeved with the locking sleeve which is in driving connection with the electric wrench. Due to the fact that the bearing seat bolts are compact in layout and large in bolt pre-tightening force requirement, the experiment platform can be rapidly mounted and dismounted, and working time and cost are greatly reduced.

The utility model relates to the technical field of flanges, in particular to a high-compression-resistance flange which comprises a high-strength flange body, a plurality of bolt holes are formed in the surface of the high-strength flange body, steel sleeves are fixedly inserted into the bolt holes and used for being arranged between bolts and the bolt holes in a sleeved mode, rubber clamping strips are fixedly inserted into the surfaces of the steel sleeves, and the rubber clamping strips are used for being arranged between the bolts and the bolt holes in a sleeved mode. The rubber clamping strip is integrally formed on the surface of the rubber sleeve, and the rubber sleeve is fixedly arranged at the end of the steel sleeve in a sleeving mode. The flange with the high compression resistance has the advantages that the steel sleeves of the I-shaped round pipe structures are additionally arranged in the bolt holes, and the design of the reinforcing ribs is combined, so that the compression resistance of the bolt holes is remarkably improved. The steel sleeve and the reinforcing ribs of the steel sleeve form a firm supporting framework, deformation of the bolt holes under high pressure is effectively prevented, and the overall stability and safety of the flange are guaranteed.

The utility model provides an anti-loose double-end fastening bolt, and belongs to the technical field of bolts. An anti-loosening double-end fastening bolt comprises a bolt body, a hexagonal cap is fixed to the peripheral side of the bolt body, the peripheral side of the bolt body is further sleeved with a first nut and a second nut, the first nut and the second nut are located on the two sides of the hexagonal cap, and an anti-loosening assembly is further arranged on the peripheral side of the bolt body; the anti-loosening assembly comprises a first pressing plate and a second pressing plate, the first pressing plate is located between the first nut and the hexagonal cap, the second pressing plate is located between the second nut and the hexagonal cap, at least two inner limiting rods are fixed to the first pressing plate, and at least two outer limiting rods are fixed to the second pressing plate. Under the limitation of the anti-loosening assembly, the first nut and the second nut can be mutually connected, the phenomenon that the first nut and the second nut are loosened is effectively avoided, the first nut and the second nut cannot be loosened, and the bolt can be effectively prevented from being loosened under the blocking of the first nut and the second nut.

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.