564results about "Washers" patented technology

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.

A mounting system includes a mounting device. The mounting device includes an internal cavity defined in a side of the mounting device, a first sealant aperture defined in the mounting device and opening into the internal cavity, a second sealant aperture defined in the mounting device and opening into the internal cavity, the first sealant aperture and the second sealant aperture being in fluid communication when the mounting device is placed on a surface for use, and a fastener aperture defined through the internal cavity. The mounting system further includes a coupling bracket including a bottom portion, an underside surface of which is correspondingly shaped in conformance with a shape of an outer surface of a central portion of the mounting device so as to be accommodated thereon when in use, and a fastener to couple the mounting device and the coupling bracket together via the fastener aperture.

The utility model relates to the technical field of anti-loosening bolts, in particular to an anti-loosening bolt for a wind driven generator, which comprises a bolt and a nut, the bolt comprises a head and a screw rod, the nut is in threaded connection with the surface of the screw rod, a sliding groove is arranged on the surface of the screw rod, and a circular ring base plate is sleeved on the surface of the screw rod. And a limiting block is fixedly connected to the inner arc surface of the circular ring base plate, the limiting block is clamped in the sliding groove, an inserting groove is formed in the surface of the circular ring base plate, and a locking mechanism is fixedly connected to the surface of the nut. The bolt and the nut can be fixed through matching of the circular ring base plate and the locking mechanism on the nut, so that connection between the bolt and the nut is firmer, the problem of bolt loosening caused by various complex working conditions such as vibration, high and low load changes and strong wind impact in the operation process of the wind driven generator can be effectively solved, and the service life of the wind driven generator is prolonged. The reliability of bolt connection is greatly improved, and stable connection of all parts of the wind driven generator is ensured.

A battery assembly for an electric vehicle is provided that has a housing, one or more battery units, and a mounting system. The housing includes a concave shell extending from an upper portion of the housing toward a bottom portion of the housing. The concave shell is disposed around an internal space. A cover is coupled with an edge of the concave shell. The one or more battery units are disposed within the internal space of the housing. The mounting system is for connecting the battery assembly to a vehicle frame.

A fastening assembly is provided which comprises a compensating element and an isolating member. The compensating element comprises a body having a receiving hole and a retaining flange provided at a first end of the body and having a retaining hole. The isolating member is made of metal and comprises a sleeve portion defining a channel. A fastening element inserted from a second end of the body of the compensating element can enter the channel and move in the channel in one or more lateral directions. The sleeve portion is inserted into the retaining hole and cooperates with the retaining hole to retain the isolating member in the compensating element. The fastening element fastens the compensating element to the second component via the sleeve portion, and the sleeve portion is configured to withstand an axial fastening force exerted by the fastening element on the retaining flange of the compensating element.

A fastening system may include a union plate with four perforated holes aligned with mat corners. A device may include threaded receiver nuts within the perforated holes of the union plate. A device may include a tapered bolt with a threaded end, configured to engage the receiver nuts. A device may include a rubber washer and a tapered steel washer with a tapered center hole, arranged in the bolt assembly.

A device for compensating for tolerances between two components to be connected to one another where the device may have a base element a compensating element. The compensating element may prior to assembly with a thread play be in threaded engagement with a first component, and into which the base element can be inserted. The device may also have a connecting element which can be inserted through the base element to connect the two components. During assembly, the connecting element may come into engagement with the base element and the base element may engage in a force-fitting manner, in particular by frictional engagement or in a form-fitting manner, into the compensating element in such a manner that the compensating element enters into play-free, play-reduced and / or self-locking engagement with the first component.

To provide a method for attaching a nested washer that is applicable to a base plate having an enlarged anchor bolt insertion hole, and the nested washer. [Solution] Indicator points 22, 34 are provided on the upper surfaces of the seats at positions where the wall thickness of the cylindrical legs 23, 32 of the upper washer 20 and the lower washer 30 is smallest, and a graph is prepared showing the relationship between the eccentricity distance and the rotation angle for each size of nested washer. An eccentricity reference line BL is set by extending the line connecting the center D of the enlarged hole 4 and the axis C of the anchor bolt 3 in the eccentric direction, and the rotation angles θ1, θ2 of each washer are confirmed on the graph according to the eccentricity distance E of the anchor bolt 3 measured on site. With the cylindrical leg 32 of the lower washer 30 fitted into the enlarged hole 4, the indicator point 34 of the lower washer 30 is aligned with the eccentricity reference line BL, and the bottom washer 30 is positioned by rotating it by the rotation angle θ1. The upper washer 20 is then inserted onto the anchor bolt and rotated by the opposite amount θ2 on the upper surface of the lower washer, whereby the cylindrical leg 23 of the upper washer 20 fits into the leg receiving hole of the bottom washer.

The connecting mechanism capable of preventing the threads from being damaged comprises a support, a connecting piece and an anti-damage piece, the support is installed on first equipment, the support is provided with a threaded hole, the connecting piece comprises a head and a rod body, the rod body comprises a smooth part and a threaded part, and the smooth part and the threaded part are in threaded connection. The smooth part is formed by extending between the threaded part and the head part, and the connecting piece is installed on the support in the mode that the threaded part is matched with the threaded hole to penetrate through the threaded hole in a rotating mode so that the smooth part can be kept inserted into the threaded hole. The connecting piece rotates into the second device to connect the first device with the second device, the anti-damage piece is installed on the smooth part or the support, and the anti-damage piece is arranged to be capable of limiting the moving stroke of the connecting piece so as to prevent the threaded part from rotating into the threaded hole. The thread part is effectively prevented from being clamped due to thread staggering, so that the thread part is prevented from being broken or deformed.

A device 10 for fixing an enclosure (figure 3, 12) to a wall, and in particular a device 10 for fixing an enclosure (figure 3, 12) at a distance away from the wall. The device 10 comprises a support m

The utility model provides a flat washer with a locking function, which belongs to the technical field of mechanical manufacturing and comprises a bolt and a locking component arranged outside the bolt, the locking component comprises a first washer, a storage groove, a first connecting rod, a spring, a fixing plate, a second connecting rod and a second washer, the first washer is slidably arranged on the outer wall of the bolt, and the second washer is slidably arranged on the outer wall of the bolt. The storage groove is formed in the inner wall of the first gasket, one end of the first connecting rod is rotationally connected to the inner wall of the storage groove, the other end of the second connecting rod is rotationally connected to the outer wall of the second connecting rod, and the spring is fixedly arranged on the outer wall of the fixing plate. By means of the locking assembly and the gasket with the spring pressure locking function, continuous elastic pressure can be applied to a connected part after installation, when equipment is subjected to vibration or impact or under the action of dynamic loads, the elastic pressure can offset external force enabling the bolt to loosen, and the bolt can be tightly locked through the pressure of the spring, so that the safety risk is reduced.

To provide a method for mounting a nest washer applied to a base plate having an enlarged anchor bolt insertion hole, and the nest washer.SOLUTION: An indication point 22,34 is provided on the upper surface of a seat part at a position where the thickness of a cylindrical leg part 23,32 of an upper washer 20 and a lower washer 30 becomes minimum, and a graph showing the relation between an eccentric distance and a rotation angle is prepared for each size of a nest washer. An eccentric reference line BL obtained by extending a line connecting the center D of the expanded hole 4 and the axis C of the anchor bolt 3 in the eccentric direction is set, the rotation angles θ 1 and θ 2 of the washers are checked on a graph in accordance with the eccentric distance E of the anchor bolt 3 measured at the site, and the indication point 34 of the lower washer 30 is aligned with the eccentric reference line BL with the cylindrical leg portion 32 of the lower washer 30 fitted in the expanded hole 4. When the lower washer 30 is positioned by rotating by a rotation angle θ1 and the upper washer 20 is inserted into the anchor bolt and rotated by θ2 in the opposite direction on the upper surface of the lower washer, the cylindrical leg part 23 of the upper washer 20 is fitted into the leg part receiving hole of the lower washer.SELECTED DRAWING: Figure 9

The subsea unit comprises a first member (110) and a second member (120), the two members (110, 120) being separate members, and an inner chamber (300) is formed between the first member and the second member when the first member (110) and the second member (120) are joined. A fastener (200) holds the first member (110) and the second member (120) together, the fastener (200) comprising a head (210) and a cylindrical body (230) connected to the head (210) at an axial end of the body, the body (230) comprising a threaded portion. A sealing element (220) is arranged between the head (210) and the first member (110), wherein the sealing element (220) engages both the first member (110) and the head (210) directly, and the sealing element (220) surrounds the body (230); wherein at least one sealing member (130) is arranged between the first member (110) and the second member (120) to seal the body (230) together with the sealing element (220).

The utility model belongs to the technical field of new energy automobiles, and particularly relates to a new energy automobile fastener protection device which is characterized in that the top end of a connecting seat is fixedly connected with an oiling assembly, the interior of the oiling assembly is in threaded connection with a fastening bolt, the surface of the fastening bolt is provided with a connecting groove, and the surface of the connecting groove is provided with an oil storage groove; a protection assembly is slidably connected to the surface of the fastening bolt, the oiling assembly comprises an oil storage tank, and the protection assembly comprises a flange plate. The fastening bolt is placed in the connecting cylinder and the fixing base, contact with external substances is avoided through the sealing ring, meanwhile, lubricating oil is regularly conveyed into the connecting cylinder through the communicating pipe to conduct oiling operation on the fastening bolt, and then the flange plate is inserted into the surface of the fastening bolt. The automobile body compresses the spring washer, and the spring washer rebounds to push the flange plate to abut against the automobile body structure, so that the fastener is tightly connected with the automobile body structure.

The utility model relates to a gasket convenient to rotate. The gasket convenient to rotate (10) is provided with a gasket body (11) and a rolling wheel (12). The roller (12) is connected with the gasket main body (11); the gasket main body (11) is provided with a chuck (111), a first round edge (112), a second round edge (113), a first transition part (114) and a second transition part (115); the roller (12) is exposed out of the first round edge (112) and the second round edge (113); the spacing distance between the chuck (111) and the first round edge (112) is A; and the spacing distance between the chuck (111) and the second round edge (113) is B. The LED display screen connecting device can be conveniently twisted through the design of the gasket convenient to rotate, and the radian adjustment operation is simple and rapid. The chuck is spaced from the first round edge and the second round edge, so that the normal work of the roller is prevented from being influenced by the deformation of the first round edge and the second round edge, and the stability of the gasket convenient to rotate is improved.

An overload adjusting mechanism and a spare tire basket fixing mechanism belong to the technical field of automobile parts. The overload adjusting mechanism comprises a fixing assembly, a locking disc arranged in the fixing assembly, ball pin positioning holes arranged on the locking disc, a ball pin sliding groove on the upper surface of the locking disc, a connecting screw rod connected with the locking disc, a locking shaft member having a locking shaft body and a base, a plurality of ball pin accommodating holes on the base, a ball pin installed in the ball pin accommodating hole and capable of being inserted into the ball pin positioning hole, the ball pin being capable of sliding along the ball pin sliding groove, an adjusting nut sleeved on the locking shaft body, a butterfly spring abutting between the base and the adjusting nut, the spare tire basket fixing mechanism comprising at least one overload adjusting mechanism, a spare tire basket body and a suspension unit, the spare tire basket body being used for carrying a spare tire, and the suspension unit being connected with the connecting screw rod. The advantages are that the spare tire locking overload protection is realized, the stable and reliable release of the spare tire is ensured, the structure is compact, and the safety is good.

The utility model relates to the field of sawtooth locking washers, in particular to a high-precision inner and outer sawtooth locking washer, which comprises a plurality of outer sawteeth, a lower ring, a plurality of inner sawteeth and an upper ring, the plurality of outer sawteeth are fixedly arranged on the outer circumferential surface of the lower ring, the plurality of inner sawteeth are fixedly arranged on the inner ring surface of the upper ring, and a clamping block is arranged on the inner ring surface of the lower ring. A notch is formed in the outer ring face of the upper ring, the width of the notch is not smaller than that of the clamping block, a clamping groove is formed in one side wall of the notch, the thickness of the clamping groove is consistent with that of the clamping block, the clamping groove is in the shape of an unclosed annular section with the central axis of the upper ring as the axis, the clamping block is connected with the clamping groove in a clamped mode, and the thickness of the upper ring is consistent with that of the lower ring. When the gasket is replaced and the mounting bolt is unscrewed, the upper ring and the lower ring cannot rotate synchronously, so that the outer sawteeth or the inner sawteeth can recover from a deformation state, the force applied to a mounting plane by the outer sawteeth and the inner sawteeth is reduced, and the scratch of the mounting plane is reduced.

The Invention describes a pair of wedge lock washers (1) with a first wedge (5) lock washer (2) and with a second wedge lock washer (3). The two washers (2, 3) each have a fastener (6, 6.1) opening arranged in alignment with one another, a wedge surface structure which engages with one another on their mutually facing surfaces, and clamping structures (9, 9.1) on their surfaces facing away from one another. One of the two washers (2) has a larger outer diameter than the other washer (3), and has a rotary drive contour (7) on the radial outside for torque support of a clamping tool. The clamping structures of the washer (2) with the larger diameter are arranged at an axial distance from the disk surface in the inner disk section (12) thereof and are designed for the form-fitting embossing of the same into the surface of a component (16) adjacent thereto. The apexes (5) of the wedge surface structuring are located as positive structures on the mutually facing surfaces of the wedge lock washers (2, 3) in a respective plane. The planes of the disk surfaces of the wedge lock washer (3) with the smaller diameter are arranged parallel to one another.

The deformable fastening system includes a clamped component and a fastener including a bolt having a shaft portion and a head portion, the shaft portion extending along a longitudinal axis of the fastener, the head portion including at least one engaging portion and one or more protrusions formed on the at least one engaging portion on a surface thereof, the one or more protrusions being formed on the at least one engaging portion, typically adjacent to the shaft portion, and the one or more protrusions formed on the at least one engaging portion engage with a mating surface of the clamped component as the bolt is driven into the nut member to clamp the clamped component, thereby increasing an axial load during a tightening cycle and deforming the clamped component.

The utility model belongs to the field of expansion sleeves, and discloses an anti-loose expansion sleeve and an assembly thereof. The anti-loose expansion sleeve comprises an expansion sleeve body, outer teeth evenly distributed in the circumferential direction are arranged on the outer side of the expansion sleeve body, the expansion sleeve body is installed in the connecting end cover and detachably connected with the threaded fastener, and inner notches corresponding to the outer teeth are formed in an inner hole of the expansion sleeve body. Before the expansion sleeve is screwed into the threaded fastener, an inner hole of the expansion sleeve is an unthreaded hole, after the expansion sleeve is screwed into the threaded fastener, the inner hole of the expansion sleeve is extruded by the threaded fastener to generate self-tapping internal threads, the threaded fastener rotationally penetrates through the inner hole of the expansion sleeve, the inner hole is expanded towards the periphery by the threaded fastener, and the expansion sleeve and the threaded fastener are tightly combined to generate outward tension. The interference magnitude of the matched aperture of the expansion sleeve and the connecting end cover is further increased; the threaded fastener needs to be reversely rotated and separated from the expansion sleeve to overcome large friction force, the anti-loosening effect is far higher than that of traditional thread anti-loosening, and the anti-loosening performance is reliable.

The utility model relates to the field of elastic washers, in particular to a curved-surface wave-shaped elastic washer, which comprises a bottom ring and a wave washer body, the top surface of the bottom ring comprises a plurality of cambered surfaces and a plurality of connecting planes, the cambered surfaces and the connecting planes are alternately arranged, and the wave washer body comprises an upper surface and a lower surface. The upper surface and the lower surface are both in a wave shape, the upper surface and the lower surface are kept parallel, the cambered surface makes contact with the wave washer body, and friction patterns are arranged on the bottom surface of the bottom ring. According to the utility model, the bottom ring and the wave washer body are arranged, so that the wave washer can keep the pre-tightening force of a bolt by storing elastic potential energy through deformation, and the situation that the wave washer continuously rotates to scratch a mounting surface due to small contact area is avoided; and through the arrangement of the friction patterns, the friction force between the bottom ring and the mounting surface is further improved, and relative rotation between the bottom ring and the mounting surface is further avoided.

A self-tightening anti-loosening screw fastening structure is characterized in that a plate and a seat are locked through screws, a round countersink is formed in the top surface of the plate, a threaded through hole is formed in the bottom of the round countersink, and a threaded countersink is formed in the top surface of the seat; the lower portion of the screw rod penetrates through the threaded through hole to be connected with the threaded countersink in a screwed mode, a gasket is arranged between the screw head and the round countersink, and a clamping structure is arranged on the bottom face of the screw head. A plurality of radial slots are formed in the gasket, a circumferential slot is formed in at least one side with the bottom of each radial slot as the starting point, strip-shaped parts separated by the radial slots and the circumferential slots form warped pieces, and the warped pieces on the corresponding side are rotationally and symmetrically distributed; the round countersunk opening is free of grooving; at least one spiral gentle slope surface is arranged on the bottom surface of the screw head close to the peripheral edge part; when the gasket is flattened, the outline of the outer ring surface is completely circular; when the screw is unscrewed, the outer end of at least one fin relatively displaces towards the slope top direction of the gentle slope surface and is further pressed down by the gentle slope surface; a limiting protruding ring is arranged on the bottom face of the screw head. Reliability is high, replacement is easy, and application cost is low.

The utility model discloses a kind of U-shaped metal spring pieces of adjustable pre-tightening force, including U-shaped body, adjusting mechanism and anti-loosening assembly, the U-shaped body is made of two symmetrically arranged leg and the connecting part of connecting leg, the free end of the leg forms elastic contact end, the adjusting mechanism includes the screw rod of at least one the leg and the nut of the screw rod screw cooperation, the axis of the screw rod is perpendicular to the extension direction of the leg, and one end of the screw rod is abutted to the inner side surface of the connecting part. By screw rod and nut cooperation can flexibly adjust pre-tightening force, adapt to different working condition demand, solve the limitation of traditional spring piece pre-tightening force fixed;Adjusting knob with anti-slip line, cooperate nut limit plane, convenient operation and prevent skidding, improve adjustment efficiency and stability. The sliding cooperation of guide groove and guide boss ensures that leg deformation is stable, improves pre-tightening force adjustment accuracy.

An electromagnetic interference (EMI) grounding protection method for a connector assembly using a conductive housing. The method includes the steps of: conducting the EMI generated by a source towards a metallic braided shield, the metallic braided shield being secured and mounted onto the conductive housing by a metallic clamp; conducting the EMI from the metallic braided shield to the metallic clamp and to the conductive housing, the conductive plastic housing being mounted onto a metallic device by at least a metallic bolt and the bolt being accommodated within a corresponding metallic compression limiter; and thereafter, conducting the EMI: (1) from the conductive housing through the metallic compression limiters and through their respective bolts, and ultimately to the metallic device, and (2) from the conductive housing directly through conductive pads thereof, and ultimately to the metallic device.

Provided is a double-side fixing assembly which can hold heat insulation and sound insulation materials and the like on the two sides of a frame and the like of an aircraft respectively, can reduce assembling and disassembling resistance and can restrain damage during disassembling. The fixing nail is provided with a positioning blocking piece, a clamping tongue piece, a first conical tooth and a second conical tooth, the first conical tooth is located on one side of the positioning blocking piece, the outer diameter is smaller when the first conical tooth is closer to one side, the clamping tongue piece is located on the other side of the positioning blocking piece and can elastically deform in the radial direction, and the clamping tongue piece is located between the first conical tooth and the second conical tooth from the other side to one side; the second conical tooth is located on the other side of the clamping tongue piece, and the outer diameter of the second conical tooth is smaller when the second conical tooth is closer to the other side of the clamping tongue piece; the first gasket is provided with a first pawl part which is provided with a first pawl and can elastically deform in the radial direction to enable the first pawl to be clamped with or separated from the axial end face of the first bevel gear; and the second gasket is provided with a second pawl part which is provided with a second pawl and can elastically deform in the radial direction to enable the second pawl to be clamped with or separated from the axial end face of the second bevel gear.