146 results about "Nuts and bolts" patented technology

The utility model discloses a novel anti-loosening bolt, which belongs to the technical field of bolts and comprises a base and a nut, the inner wall of the base is in threaded connection with a bolt body, and the bottom of the bolt body is fixedly connected with a fixing cone. The nut is screwed into the surface of the bolt body from bottom to top from the bottom of the bolt body and located at the bottom of the base and stops moving until the positions of the second through hole and the first through hole are located on the same horizontal plane, meanwhile, in the rotating process, the spring gasket is extruded through the nut, and when the spring gasket is flattened, elastic force can be generated, so that the spring gasket is tightly pressed. And after connection is completed, a plug pin is inserted into the second through hole and the first through hole, physical limiting is conducted on the nut and the bolt body through the plug pin, the stability when the nut and the bolt body are connected is improved again, and the nut and the bolt body can be prevented from being loosened. Therefore, the anti-loosening purpose is achieved.

The present application relates to the technical field of fastener, in particular to a nut assembly for preventing loosening and unfastening and a packaging method thereof, the nut assembly is composed of a bolt, a nut and a protection structure, the protection structure includes a protection body with a protection cavity, a guide, an elastic support and an elastic end piece; the elastic support is arranged at one end of the protection cavity; the elastic end piece is detachable at the other end of the protection cavity; the elastic end piece, the guide, the nut, the bolt and the elastic support are distributed along the protection body in the axial direction, and the elastic support and the elastic end piece have a first elastic body and a second elastic body respectively; when the elastic end piece is pressed, the second elastic body supplies air to the nut and cleans it through the guide; when the elastic support is pressed, the bolt is exposed from the cavity opening of the protection cavity, when the elastic support recovers, the bolt is retracted into the protection cavity and wrapped by the first elastic body, the present application completes the cleaning of the nut and the bolt while packaging the beads, reduces the production process flow and ensures the production capacity.

This utility model belongs to the field of pre-embedded bolt anti-loosening technology, and discloses a pre-embedded bolt anti-loosening structure for metal products. It includes a nut rotatably mounted on the lower outer side of the bolt body, grooves on both sides of the nut, a cotter pin fitted inside the grooves and inserted into the bolt body, a locking washer fixed to the upper surface of the nut, and a shape memory alloy spring washer fixed to the lower surface of the nut. Through the cotter pin, shape memory alloy spring washer, and locking washer, the cotter pin prevents relative rotation of the bolt, nut, and other connecting parts under vibration or external force, ensuring a stable and safe connection. The shape memory alloy spring washer can increase the pressure at the connection point, reduce contact resistance, and suppress heat generation by deforming under temperature changes and other environmental conditions. It can also absorb some energy to reduce vibration amplitude and ensure connection stability. The locking washer restricts the rotation of the nut and bolt.

The utility model discloses a kind of grab teeth sleeve, including sleeve body, the top of sleeve body is provided with circular groove, the bottom of sleeve body is provided with hexagonal hole, the inside of circular groove is provided with ring groove, the inside of ring groove is above inherent fixed gear ring, the inside of fixed gear ring is engaged with and connected with mobile gear ring, the inside of mobile gear ring is fixed with hexagonal ring.Nut is placed in the inside of hexagonal hole, bolt passes through sleeve body and grab tooth and nut is screwed, using hexagonal wrench, insert in the outside of bolt, rotate hexagonal wrench to make bolt and nut tighten, remove hexagonal wrench, using tool is inserted into the inside of rotating hole, rotate tool, make mobile gear ring and fixed gear ring correspond, hexagonal ring and bolt correspond, if bolt and hexagonal ring do not correspond, the angle of bolt is fine-tuned, so that it corresponds, such that fixed magnetic ring and mobile magnetic ring repel each other, hexagonal ring and mobile gear ring move up, mobile gear ring and fixed gear ring engage connection, so it can limit the rotation of nut and bolt.

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 application relates to a fixing structure of a small unmanned aerial vehicle nest platform threading pipe and a wire protection frame, and relates to the field of small unmanned aerial vehicle nest platform threading pipe fixing devices. The fixing structure of the small unmanned aerial vehicle nest platform threading pipe comprises at least two groups of fixing components used cooperatively, each group of fixing components comprises two fixing clamps, a plurality of nuts and bolts, a fixing seat and a second clamp. Through the special mechanical structure among the fixing clamps, the nuts, the bolts, the fixing seat and the second clamp, two threading pipes can be stably fixed on one side of a platform stand column through the two fixing clamps at the same time. Compared with the traditional fixing by a fixing belt, the fixing effect of the two threading pipes is better and more reliable through the fixing mode of the bolt fastening. Moreover, as the fixing clamps have preset spaces for the threading pipes to enter, the installation operation of the threading pipes becomes simpler, and the problem of poor fixing effect of the traditional threading pipe fixing equipment when fixing the threading pipes is solved.

The problem that when an existing angle steel tower is assembled, the bolt connecting device is unstable in bolt and nut connecting effect is solved. The automatic nut and bolt screwing device comprises a bolt clamping structure and a nut clamping structure which correspond to each other. The bolt clamping structure is in sliding fit with the nut clamping structure; the nut clamping structure comprises a clamping jaw locking mechanism, a nut sleeve mechanism and a base. The nut sleeve mechanism comprises a sleeve seat, a rotary drum and a motor; the motor is in transmission connection with a rotary drum rotationally arranged on the sleeve seat; the sleeve base and the base are arranged on a sliding rail fixed to the clamping jaw locking mechanism in a sliding mode, a first electric cylinder is arranged between the sleeve base and the clamping jaw locking mechanism, and a second electric cylinder is arranged between the base and the clamping jaw locking mechanism. The clamping jaw locking mechanism comprises a limiting jaw facing the opening part of the rotary drum; after the limiting claws are folded, a through hole through which a bolt penetrates is formed in the center of each limiting claw; and the opposite relation and stable connection of the bolt and the nut are realized.

1. The name of this design product: Electric wrench (12V). 2. Purpose of this product: This product is an electric wrench, mainly used for tightening and removing nuts and bolts. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the key points of the design: Design 1 3D drawing. 5. Designate Design 1 as the base design.

The self-adaptive workpiece positioning intelligent clamp comprises an adjustable mechanism, a fixed wrench opening is formed in the bottom of the adjustable mechanism, a convenient assembling mechanism is arranged at the top of the adjustable mechanism, a supporting rod is fixedly installed at the top of a bottom plate, and a limiting sliding groove is formed in the right side of the supporting rod; a telescopic rod is slidably connected to the right side of the supporting rod, and a connecting plate is fixedly mounted at the top of the telescopic rod. According to the self-adaptive workpiece positioning intelligent clamp based on visual identification, a plug board of the convenient assembling mechanism is in plug-in fit with a plug seat, a control piece is rotated to drive a threaded rod to be screwed into a threaded hole in the bottom of the plug board, a ratchet wrench opening can be rapidly disassembled, assembled and replaced, nuts and bolts of different specifications are adapted, and replacement of abrasion faults is facilitated; a threaded shaft of the adjustable mechanism rotates to drive a telescopic rod to ascend and descend along a limiting sliding groove to adjust the length, a rotating shaft drives a clamping piece and a fixing plate to rotate to adjust the angle, and adaptability and working efficiency are improved.

This utility model discloses a press-fit blind hole nut structure, belonging to the field of press-fit nut technology. It includes a first retainer and a second retainer, a nut component, and a fixing bolt. The fixing bolt is installed at the inner center of the nut component. The nut component includes a toothed sleeve and a nut sleeve. The toothed sleeve is fixedly installed on the upper outer surface of the nut sleeve. A toothed portion for riveting metal plates is provided at the center of the upper outer surface of the toothed sleeve. The toothed portion has an overall toothed ring structure. The fixing bolt and the toothed sleeve, as well as the fixing bolt and the nut sleeve, are all connected by threads. Several sets of teeth are distributed in a ring on the outer surface of the toothed portion, with one end of each tooth having a pointed shape. This provides a press-fit rotation limiting structure, preventing synchronous rotation of the nut during subsequent bolt installation after it is connected to the sheet metal material. This allows the nut and bolt to be tightened to the maximum extent, improving their performance.

The utility model belongs to the technical field of steel members, and particularly relates to a multidirectional force transmission steel member node strengthening structure which comprises a first steel member body, a connecting frame is arranged at the top of the first steel member body, first connecting holes are formed in the periphery of the bottom of the connecting frame, and third steel member bodies are connected to the two ends of the inner wall of the connecting frame in a clamped mode. And the bottom of the third steel member body is in threaded connection with a bolt. Third steel member bodies are placed on the two sides of the inner wall of the connecting frame, the connecting frame and the third steel member bodies are connected and installed through second nuts and bolts, operation is easy, installation convenience is improved, and the multidirectionality of equipment connection is improved; and the first steel member body and the connecting plate are connected through the second screw and the third nut, the lower portion of the connecting plate is supported through the supporting plate, the connecting stability of the first steel member body and the second steel member body is improved, and the strength of the steel structure joint is improved.

The utility model discloses an automobile accelerator steel wire clamping nut assembly, and belongs to the field of automobile fastener design. The edge of the upper end of the first nut forms a section of upward convex edge; and the bolt is in threaded connection with the first nut from top to bottom. The device has the beneficial effects that the first nut is in threaded connection with the bolt and is matched with the bolt to press the steel wire between the bolt and the convex edge of the first nut, part of the steel wire surrounds the bolt to be bent, and therefore when the steel wire is pulled, the bolt can form rudder reacting force similar to pulling force on the bent part of the steel wire; and therefore, the steel wire is difficult to slide out of the fastening assembly.

The utility model discloses an anti-loosing fixing structure of a molybdenum lifting grab bolt, and relates to the technical field of mechanical connection and fastening, the anti-loosing fixing structure comprises a bolt, the outer wall of the top of the bolt is fixedly connected with a tooth-shaped gasket, the outer wall of the bolt is provided with an anti-loosing mechanism, and the anti-loosing mechanism comprises a gasket. At the moment, the fixing shaft can drive the sliding plate to continuously slide in a sliding groove formed in the second gasket, when the sliding plate slides to a certain distance, the second gasket makes contact with the spring and continuously extrudes the spring, when the spring is extruded, elastic deformation is generated, and continuous elastic pre-tightening force is applied between the nut and the connected piece. The pre-tightening force enables the friction force between the nut and the bolt to be increased, the nut is prevented from rotating under the action of vibration or other external force, the anti-loosening effect is achieved, it is guaranteed that the molybdenum lifting claw and other components are connected in a fastened state all the time, and therefore normal operation of the whole device is guaranteed.

The utility model belongs to the technical field of fastening equipment, and particularly relates to an anti-loose bolt assembly of a fan tower, which comprises a bolt, a nut, a lower sleeve, a friction structure and an upper sleeve which are matched for use, the bolt penetrates from the lower end of a bolt hole in the fan tower, the nut is screwed and fixed from the upper end, the lower sleeve is sleeved on the nut, and the upper sleeve is buckled from the upper part of the bolt tail. The lower sleeve and the upper sleeve are installed respectively, so that the nut and the bolt tail at different screwing positions can be matched, operation is easy, installation is convenient, relative rotation between the lower sleeve and the upper sleeve is limited through the friction structure, and good fastening and loosening effects are achieved. A flange protruding out of the outer edge is arranged at the upper end of the friction block, the upper sleeve comprises an annular groove and a first chamfer, the process that the upper sleeve is inserted into the lower sleeve is smoother through cooperation of the flange, the first chamfer and the annular groove, and the relative position of the upper sleeve and the lower sleeve can be limited.

The invention discloses a combined electric meter cabinet, and relates to the field of electric meter cabinet application, the combined electric meter cabinet comprises an electric meter box, two groups of vertical rods are symmetrically arranged in the electric meter box, the side surfaces of the vertical rods are provided with first limiting grooves and racks, the outer parts of the two groups of vertical rods are movably provided with adjusting mechanisms, and a cross rod is movably installed between the two groups of adjusting mechanisms; the adjusting mechanism is composed of a clamping assembly and an adjusting assembly. The adjusting mechanisms are arranged between the vertical rods and the transverse rods for installation, so that the multiple sets of transverse rods are located on the side faces of the vertical rods, the height can be adjusted, and compared with the installation mode that the transverse rods and the vertical rods are fixed through nuts and bolts, the transverse rods can conduct secondary height calibration, and the installation efficiency is improved. Therefore, a worker can carry out secondary calibration and typesetting according to the sizes of the electrical components, so that the electrical components are arranged in the electric meter box more orderly and reasonably.

This utility model relates to the field of construction and discloses an adjustable connecting corner bracket construction tool, including a corner bracket first component, a corner bracket second component, and a connecting bolt assembly. The corner bracket second component has a U-shaped groove structure, and its main board has bolt adjustment holes. The corner bracket first component can be embedded into the U-shaped groove of the corner bracket second component, and its main board has corresponding bolt adjustment holes. The connecting bolt assembly includes a nut and a bolt, and the bolt passes through the bolt adjustment holes of the corner bracket first component and the corner bracket second component in sequence, and is fastened together by the nut and bolt. In this utility model, by changing the relative position of the bolt and the bolt adjustment hole, the corner bracket second component can achieve short-distance extension and retraction adjustment, while the corner bracket first component can both extend and retract short distances and rotate left and right. The combination of the two components changes the relative position relationship, allowing the installed stone to form a multi-faceted irregular shape effect, meeting the adjustment needs of irregular stone installation and improving construction flexibility.

1. The name of the design product: screwdriver (CS20). 2. The use of the design product: used for loosening and tightening various types and specifications of screws, nuts and bolts. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

The utility model relates to the technical field of electric power tower poles, and discloses an electric power tower pole foundation device which comprises a fixing ring, a hollow column is slidably connected into the fixing ring, a bearing is fixedly connected to the top of the hollow column, a clamping block is fixedly connected to the top of the hollow column, and a first fixing column is arranged on the side wall of the clamping block. A ladder stand is fixedly connected to the outer wall of the first fixing column, a threaded rod is in threaded connection with the interior of the first fixing column, a clamping jaw assembly is arranged at the bottom of the threaded rod, and a supporting assembly is arranged on the inner wall of the fixing ring. According to the tower drum mounting device, the third fixing column is rotated to rotate the first fixing column, the fourth fixing column rotates the internal threaded rod, and the threaded rod drives the bottom three-groove column to slide in the hollow column, so that the effect of quick mounting is achieved, and the problem that the tower drum is inconvenient to mount by using nuts and bolts traditionally is solved. And the installation efficiency is reduced, and the convenience is improved.

The utility model relates to the field of bolt protection, and provides a fastener protection device and a fastening structure which are applied to a nut structure exposed outside, a nut is used for being tightly attached to an installation plane, the fastener protection device comprises a cover body, and the cover body is connected with the installation plane in a sealed mode. And the cover body covers the outer side of the nut to form sealing. According to the scheme, the cover is arranged on the outer side of the nut to isolate the inside and the outside, and therefore physical corrosion prevention is achieved. The cover body forms a sealed or semi-sealed space on the outer side of the nut, so that external corrosive media such as air, moisture and chloride ions are isolated, and the corrosion of the corrosive media to the contact part of the nut and the bolt is reduced. Especially in a high-salinity and high-humidity environment, the physical barrier can effectively slow down the occurrence speed of electrochemical corrosion and atmospheric corrosion, and the service life of the fastener is remarkably prolonged.

The utility model discloses an aluminum bar electric connection structure of a new energy automobile, which comprises an injection molding installation support, an installation nut and a bolt, the injection molding installation support comprises an installation groove, a limiting groove arranged at the lower end of the installation groove and an installation hole communicated with the installation groove and the limiting groove, and the diameter of the installation hole is larger than that of the limiting groove. The installation nut and the injection molding installation support are integrally connected in an injection molding mode, the installation nut comprises a supporting part at least partially embedded in the installation hole and an installation part embedded in the limiting groove, the upper end of the supporting part comprises a supporting face, the bolt comprises a limiting part and a threaded part, the lower end of the limiting part comprises a limiting face, and the threaded part sequentially penetrates through the aluminum bars. The limiting surface and the supporting surface cooperate together to continuously apply limiting force in the axial direction to the aluminum bars, and the lower end of the threaded part is embedded into the mounting part and is in threaded connection with the mounting part. According to the utility model, through the combined design of the injection molding mounting bracket, the mounting nut and the bolt, the tight connection between the aluminum bars is realized.

The utility model discloses an anti-loosing parallel hanging plate which comprises a first hanging plate and a second hanging plate, the first hanging plate is provided with a bolt and penetrates through the second hanging plate, the bolt is sequentially provided with a flat gasket and a spring washer, a screw rod of the bolt is in threaded connection with a nut, so that the flat gasket is tightly pressed on the second hanging plate, and the spring washer is arranged on the second hanging plate. The second hanging plate is provided with a protruding connecting part, the connecting part is provided with a cavity for containing a nut, the cavity abuts against the outer wall of the nut, a locking cap is arranged on the outer wall of the connecting part, a threaded part is arranged in the locking cap, and the locking cap is in threaded connection with the bolt. Reversion of the nut due to external force vibration is avoided through the cavity; the friction force between the nut and the bolt is increased through the spring washer, meanwhile, the locking force between the bolt and the second hanging plate is improved through the threaded part, the bolt is prevented from reversing due to external force vibration, and the product has the advantages of improving the locking force and preventing looseness.

The utility model provides a tool for pipe plugging and pressure testing, which comprises an end cover, a boss, a conical sliding block, a sealing ring, a bottom plate, a water inlet pipe, a nut and a bolt, the end cover, the boss and the bottom plate are connected through the nut and the bolt, and the bolt penetrates through the lower end of the end cover and the lower end of the boss from top to bottom and is connected with the bottom plate. The nut is connected to the upper end of the bolt and is in contact connection with the upper surface of the end cover; the lower portion of the end cover is clamped to a pipe opening, the boss and the bottom plate are arranged in the pipe, a space is formed between the outer wall of the boss and the inner wall of the pipe, the conical sliding block is arranged in the space, and a sealing ring is arranged between the outer edge of the lower portion of the boss and the bottom plate and is in contact connection with the inner wall of the pipe. The water inlet pipe penetrates through the end cover and the lower end of the boss from top to bottom to be connected with the bottom plate, the water inlet pipe penetrates out of the upper end of the end cover to be connected with the water inlet, and a through hole structure III is arranged in the water inlet pipe and communicated with the interior of the pipe. According to the plug, the sealing performance after assembly can be guaranteed, and the problems of an existing plug made of steel are solved.

1. The name of the design product: electric screwdriver (CS16). 2. The use of the design product: the design product is used for tightening various types and specifications of screws, nuts and bolts. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

The utility model relates to the technical field of fixing pipes, in particular to an auxiliary frame installation fixing pipe which comprises an auxiliary frame assembly, a plurality of sets of fixing assemblies arranged in the auxiliary frame assembly and fixing pipe mechanisms arranged on the fixing assemblies. The fixing assembly comprises a bolt and a nut; the fixing pipe mechanism comprises an anti-seepage bottom pad arranged on the auxiliary frame assembly, an anti-skid wire assembly is arranged at the top of the anti-seepage bottom pad, and a positioning rod is arranged in the middle of the top face of the anti-seepage bottom pad. The independent anti-seepage bottom pad is arranged at the contact part of the nut and the auxiliary frame, the exposed threaded section of the bolt is sealed and protected in cooperation with the plug pad, the sealing top cover and the plug head, and meanwhile, the anti-slip assembly arranged on the anti-seepage bottom pad can provide protection for the gap exposed between the bolts, so that the anti-slip effect of the nut is improved. And meanwhile, foreign matters are prevented from impacting the connection part of the nut and the bolt.

The present invention relates to the field of fasteners and discloses an adsorption type anti-loosening bolt assembly, comprising a bolt and a nut, the bolt comprising a head and a screw, the nut comprising a nut body cooperating with the screw and a mating ring coaxially rotatably arranged at an end of the nut body away from the head, an adsorption port being provided at an end of the nut body close to the head, an air storage chamber being provided in the nut body, a piston assembly being sealingly and telescopically provided in the air storage chamber and capable of driving the adsorption port to switch between normal pressure and negative pressure, an end of the piston assembly away from the head being relatively rotatably matched with the mating ring, a locking mechanism being provided between the screw and the mating ring for locking the two when the mating ring moves to a specified position with the nut body, when the mating ring is locked with the screw, the screw continues to advance relative to the nut body, and the negative pressure of the adsorption port tends to gradually increase, and in the above-mentioned bolt assembly, the nut and the bolt are triple-locked on the assembly object by tightening and adsorption locking, which significantly improves the firmness and stability of the assembly.

The article relating to the present design is a gauge for measuring the size of nuts and bolts.

This invention provides wooden member connecting members, wooden seismic-resistant members, and high nuts and lag screw bolts that constitute them, which are less prone to buckling than conventional materials. [Solution] The device comprises a bolt 1 that engages with a gusset plate 9, a lag screw bolt 5 fixed to the bottom 4a side of the pilot hole 4 and having a hollow portion 55 that opens to the rear end 54 of the screw, a rod 6 having first threaded portions S1 and second threaded portions S2 at both ends 6a and 6b that screw into a high nut 7 and the lag screw bolt 5, and an expandable portion E extending between them, and a high nut 7 that screws into the bolt 1 and the rod 6, all arranged coaxially Q with the pilot hole 4. The high nut 7 or the lag screw bolt 5 has a non-threaded portion N within the hollow portions 71, 55 that allows displacement of the expandable portion E in the axial direction Z. The high nut 7 has a length L longer than the maximum assumed extension length MAX of the expandable portion E inserted into the pilot hole 4, and its displacement direction is constrained to the axial direction Z by the inner surface 4d of the pilot hole 4.

The utility model is applicable to the technical field of wall nails, and provides a concealed wall nail capable of replacing a wall surface punching installation screw, which comprises a main body base, thin steel nails are distributed at one end of the main body base at equal intervals, and through the arrangement of the thin steel nails, the thin steel nails and the main body base are of an integrated structure. By means of the installation mode, the wall surface is not damaged, a professional does not need to conduct door-to-door installation, a user can conduct installation by himself / herself, and the purpose of saving cost is achieved. The nut is arranged on the main body base, the nut and the main body base are synchronously mounted and fixed with the wall body, the hook and the main body base can be conveniently connected through a threaded structure between the nut and the bolt, and meanwhile, in the using process, the stress surface when a heavy object is hung is increased through the effect of the mounting plate, and the falling-off condition is avoided.