4478results about "Locking fasteners" patented technology

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.

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.

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 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.

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.

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.

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.

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 locking-mode-selectable lock bolt and nut device comprises a bolt and a nut, the main fastening nut is arranged on the bolt in a sleeving manner; the fixed locknut is arranged on the bolt in a sleeving manner and is positioned above the main fastening nut; wherein a bolt locking groove is formed in the outer wall of one side of the bolt in the length direction, the section of the bolt locking groove is triangular, an acute angle is formed by two side faces in the bolt locking groove, one side face is arranged in the radial direction of the bolt, and the other side face is an inclined face; mounting through holes are symmetrically formed in two opposite surfaces of the fixed locknut, and a screw hole, a round hole and a square hole are sequentially formed in each mounting through hole from outside to inside; the inner diameter of the round hole is larger than that of the screw hole, and the width of the square hole is smaller than that of the round hole. And the two locking assemblies are respectively inserted into the two mounting through holes of the fixed locknut.

A method and fastening device for attaching polyester fiber panels to a substrate, such as a wall or a ceiling. The fastening device comprises an anchor part for attachment to the substrate and a fastening part for attachment to the panel. The fastening part comprises a cylindrical portion, a helical member surrounding the cylindrical portion for penetrating the panel upon rotation of the helical member and a recess in the cylindrical portion for receiving the anchor part. The thread angle of the leading edge of the helical member is greater than the thread angle of the trailing edge.

The invention discloses a self-tightening spring (1) which is characterized in that a bolt hook (2) is arranged at one end of a tension spring main body (24) and is linear, and a nut hook (3) is arranged at the other end of the tension spring main body (24) and is an L-shaped inverted-inserting hook. The matched bolt (6) is characterized in that the tail end of a common bolt is provided with a bolt hook hole (4), and the bolt hook hole (4) is a radial through hole into which a bolt hook (2) can be inserted. The nut is characterized in that at least one nut hook hole (5) and a blind hole parallel to the hexagonal side face and the end face of the nut at the same time are formed in the hexagonal side face of a common nut. The invention further discloses an anti-loosening thread pair (25), which is characterized in that the bolt hook (2) is inserted into the bolt hook hole (4), the nut hook (3) is lengthened and inversely inserted into the nut hook hole (5), the tension spring body (24) is screwed around the screw rod (7) to tighten the nut (9) and the bolt (6), energy is continuously compensated, loosening displacement of the thread pair is self-tightened, and the purpose of never loosening is achieved.

The present disclosure provides a tolerance compensation fastening assembly for fastening a second part to a first part by cooperating with a nut element provided on the first part. The tolerance compensation fastening assembly comprises a bolt, a compensation element, a connection element, and a holding means. The compensation element comprises a body and a flange, and the flange is provided at one end of the body and defines a compensation hole in communication with a channel of the body. A bolt head is accommodated in the channel and is blocked by the flange, and a bolt rod passes through the compensation hole. The connection element comprises a connection disc and connection legs, and the flange is located between the bolt head and the connection disc. The connection disc is provided with a connection hole to receive the bolt rod. The connection legs are configured to connect the connection disc to the second part. The holding means is provided on the connection disc and the bolt rod, and is configured to couple the bolt rod to the connection disc to prevent the bolt rod from being withdrawn from the connection hole, thereby holding the bolt, the compensation element and the connection element in a pre-assembled position.

The utility model discloses an anti-loosening and anti-deflection fast-assembling plate for camera shooting and digital products, which belongs to the technical field of accessories of camera shooting and digital products and comprises a fast-assembling plate and a large screw, a containing groove is arranged on the lower side of the fast-assembling plate, and the large screw is arranged in the containing groove. An anti-loosening fastening part used for preventing the camera shooting equipment from loosening is arranged between the large screw and the quick mounting plate, the anti-loosening fastening part comprises a connecting hole, a positioning hole and a fixing piece, the connecting hole is formed in the screw head of the large screw, the positioning hole is formed in the top of the inner side of the containing groove, and the fixing piece is connected with the positioning hole. And the fixing piece can be in threaded connection between the connecting hole and the positioning hole. According to the utility model, the problem that after a traditional quick release plate is used, the traditional quick release plate and the camera shooting equipment are loosened in the using process is solved.

The present invention relates to a device for adjusting the camber angle for a suspension of a motor vehicle comprising a stem. A tightening assembly is tightened on a first end portion of the stem, against a first wall of a suspension. A head assembly, on a second end portion of the stem, abuts against a second wall of the suspension. In the head assembly, a first eccentric element, removably mounted on the stem, is configured to act as a cam on a first abutment portion of the suspension. The head assembly is characterized in that it comprises a locking assembly, configured to prevent the removal of the first eccentric element. The locking assembly comprises an elastic member snap engageable in a locking seat of the second end portion of the stem.

The utility model discloses a clamping structure of a wind turbine generator monitoring device, and belongs to the technical field of wind power equipment monitoring. Comprising a wind turbine generator which is fixed to the ground, and further comprises a base, connecting pieces, a clamping box body, connecting holes, connecting plates, elastic clamping rings, reinforcing blocks, a monitoring supporting plate and matching holes, the base is vertically arranged, the connecting pieces are fixed to the two horizontal sides of the base, and a plurality of mounting holes are formed in the connecting pieces; the connecting pieces are fixedly connected with the wind turbine generator by inserting bolt fasteners into the mounting holes, a space exists between the base and the wind turbine generator to form a wire harness channel, and the clamping box body is fixed to the side, away from the wind turbine generator, of the base. After the connecting piece is fixedly connected with the wind turbine generator, the connecting plate is inserted into the clamping cavity, the clamping hole is aligned with the connecting hole to form the connecting channel, then the connecting piece is inserted into the connecting channel, the reinforcing block and the clamping box body can be clamped and fixed, and installation is convenient and fast.

The utility model discloses an anti-loosening double-nut pressing type quick coupler, and relates to the technical field of sealing couplings. Comprising a connector body, and a continuous fifth threaded section is arranged on the outer wall of the connector body; the locknut set comprises a fastening nut and a locking nut, a fixed section is formed at one end of the fastening nut, a continuous first threaded section matched with the fifth threaded section is arranged on the inner wall of the fastening nut and the inner wall of the fixed section, a second threaded section is arranged on the outer diameter of the fixed section, a locking section is formed at one end of the locking nut, and the locking section is matched with the second threaded section. A third threaded section matched with the second threaded section is arranged on the inner wall of the locking section, and a fourth threaded section matched with the fifth threaded section is arranged on the inner wall of the locking nut; the fastening nut and the locking nut are in threaded connection through the second threaded section and the third threaded section, and the locking nut is in threaded connection with the fifth threaded section on the connector body through the fourth threaded section. The fastening nut and the locking nut are fixed in a detachable connection mode.

The locknut comprises a first nut body, the first nut body comprises a first hexagonal block, a first connecting threaded hole and a locking hole are formed in the first hexagonal block, and a hole shoulder is formed in the communicating position of the first connecting threaded hole and the locking hole; clamping blocks are arranged in the circumferential direction of the axis of the locking hole at intervals, deformation blocks with elastic deformation capacity are arranged between the clamping blocks and a hole shoulder, a separation gap is formed between every two adjacent clamping blocks, each clamping block is provided with an inwards-sunken arc wall, and locking internal threads are arranged on the inner side of each arc wall. The lower end face of the clamping block protrudes out of the lower end of the first hexagonal block. During installation, self-locking is formed, the anti-loosening performance is high, loosening detection can be carried out, and the locking state and the loosening condition of the operation nut can be monitored in real time.

The utility model provides an anti-impact connecting bolt fastening structure of a high-voltage isolating switch, and relates to the technical field of high-voltage switches, the anti-impact connecting bolt fastening structure comprises a high-voltage isolating switch base and a switch anti-impact bolt connecting assembly, through bolts penetrate through the inner sides of base bolt holes, the lower side of a bolt head rubber mat is provided with a back shore spring, and the back shore spring is connected with the switch anti-impact bolt connecting assembly. A limiting sleeve is connected to the outer side of the jacking spring in a sleeving mode, a nut rubber mat is arranged on the lower side of the limiting sleeve, a connecting nut is arranged on the lower side of the nut rubber mat, a metal locking nut is arranged on the lower side of the connecting nut, and due to the effective buffering effect of a damping rubber mat, damage of vibration to the base is remarkably reduced, and the service life of equipment is prolonged; and through rotation of the penetrating bolt, rapid mounting and dismounting can be achieved, firm and reliable connection is ensured, and through adjustment of the fastening strength of the penetrating bolt, impact loads under different working conditions can be flexibly coped with, and stable operation of equipment is ensured.

A connection device for coupling a load to a lifting lug with a support bolt which is rotatable in a through-opening of a ring holder. The support bolt has a threaded shaft and a bolt head which protrudes radially, and which can also be rotated therewith relative to the lifting lug. The ring holder is covered at the lower side thereof by an end flange at the lower end of a sleeve which is releasably secured to the support bolt by tension in an axial direction. The ring holder has at least one locking member for the bolt head which blocks the bolt head from rotation in a locking position and which is not in engagement with the bolt head in an initial position. The support bolt is supported in the through-opening of the ring holder with a ball bearing, and the lifting lug is an open ring.

A wheel assembly to be coupled to a hub of a vehicle may include an inner rim to be coupled to the hub of the vehicle, an outer rim surrounding the inner rim. A rigid cover ring may be coupled to the outer rim and extend radially inward toward the inner rim. Gas springs may be operatively coupled between the inner and outer rims to provide a gas suspension for relative movement between the inner and outer rims. Fastener assemblies fasten the rigid cover ring to the outer rim, fastening each gas spring to the outer rim, or fastening each gas spring to the outer rim. Each fastener assembly may include a fastener and a pair of indicator-lock washers carried by the fastener. Each indicator-lock washer may have respective sloped surfaces slidably engaging one another to permit relative rotation so that loosening from a fully tightened position exposes a gap.

Provided is a steering device including a lock nut that fixes an outer race of a turning nut threadably engaged with a rack bar. A loosening prevention protruding portion formed on a lock nut main body is brought into contact with a radial-direction abutting portion to prevent loosening of the lock nut with a frictional force. At the same time, a lock nut recessed portion for reducing mechanical stiffness is formed in an outer peripheral surface of the loosening prevention protruding portion so that an external force acting from the outer race is buffered by the lock nut recessed portion. In this manner, a decrease in contact area between the loosening prevention protruding portion and the radial-direction abutting portion is reduced.

A wheel assembly to be coupled to a hub of a vehicle may include an inner rim to be coupled to the hub of the vehicle, an outer rim surrounding the inner rim, and gas springs operatively coupled between the inner and outer rims to provide a gas suspension for relative movement between the inner and outer rims. The wheel assembly may also include tread assemblies carried by the outer rim. Fastener assemblies may be configured to perform fastening at least one tread assembly to the outer rim, fastening each gas spring to the outer rim, or fastening each gas spring to the outer rim. Each fastener assembly may include a fastener, and a pair of indicator-lock washers carried by the fastener. Each indicator-lock washer may have respective sloped surfaces slidably engaging one another to permit relative rotation so that loosening from a fully tightened position exposes a gap therebetween.

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.

To provide a looseness preventing device which includes a protruded nut having a protrusion and a recessed nut having a recess, either the protrusion or the recess being eccentric to a screw hole, for preventing the looseness with the irregularity eccentric fitting of the protrusion and the recess while locating the gravity center of the whole device near the axis center of a screw shaft at the time of completing fastening.SOLUTION: A looseness preventing device has one of a construction A and a construction B: the construction A; an axis center E1 of a tapered inner peripheral face of a recess 22 is eccentric to an axis center O1 of a screw hole 23 of a recessed nut 2 and the gravity center G1 of the recessed nut 2 is located in the same direction as the axis center E1 of the tapered inner peripheral face of the recess 22 with respect to the axis center O1 of the screw hole 23 of the recessed nut 2, and the construction B; the axis center E2 of the tapered outer peripheral face of the protrusion 12 is eccentric to the axis center O2 of the screw hole 13 of the protruded nut 1 and the gravity center of the protruded nut 1 is located in the opposite direction to the axis center E2 of the tapered outer peripheral face of the protrusion 12 with respect to the axis center O2 of the screw hole 13.SELECTED DRAWING: Figure 2

The invention relates to a main bearing locking nut anti-loosening structure and an aero-engine, belongs to the technical field of aerospace, and solves the problem of unreliable mechanical anti-loosening locking of a locking nut in the prior art. The anti-rotation device comprises a locking nut, a locking plate and an anti-rotation sleeve which are arranged outside a shaft neck of an engine rotating shaft in a sleeving mode. The locking nut fixing section is fixed to the shaft neck, and a first groove is formed in the outer portion of the clamping section in the circumferential direction. The locking plate comprises a locking plate main body, a first tooth and a second tooth; the first tooth is embedded into the first groove to limit the circumferential movement of the locking nut; the anti-rotation sleeve fixing part is connected with the shaft neck; the inner wall face of the anti-rotation part is attached to the outer wall face of the locking nut and the outer wall face of the locking piece. And the end part of the anti-rotation part is provided with a notch which is mutually embedded with the second tooth. Triple locking of the main bearing locking nut can be achieved, locking is reliable, and the structure is simple.