370 results about "Locknut" patented technology

The utility model relates to the field of hydraulic tensile shearing test fixture, disclose a V type notch hydraulic tensile shearing fixture, including upper clamping concrete, sample and lower clamping concrete, the upper clamping concrete and lower clamping concrete upside down both ends are fixed with the handle at the edge, the upper clamping concrete and lower clamping concrete opposite side fixedly set up with the jack, the lower clamping concrete front end fixedly set up with the centring block, the upper clamping concrete front end fixedly set up with the upper joint, the lower clamping concrete rear end fixedly set up with the lower joint, the upper joint and lower joint outside all are threadedly equipped with lock nuts. In the utility model, through optimization design and stable clamping system, the fixture significantly reduces the skidding phenomenon in the test, ensures the accuracy of test result, effectively improves the consistency of test result, simultaneously, the simple operation design of fixture not only shortens the preparation time, but also improves the test efficiency, reduces the working strength of operating personnel.

The utility model discloses a kind of multiple pipelines joint fixing device, including supporting plate, support and fixed mechanism, supporting plate is by the length same inner supporting plate and outer supporting plate long side alignment splicing composition, inner supporting plate and outer supporting plate are respectively symmetrical with multiple semicircular holes in its contact surface, support includes the supporting arm of spacing matching supporting plate length, the outside end of two side supporting arms is respectively connected with the both ends of a connecting arm, the length direction both sides of inner supporting plate and outer supporting plate are provided with supporting plate fixed hole along supporting plate width direction, the both sides of connecting arm are provided with the through support fixed hole corresponding supporting plate fixed hole, fixed mechanism includes fixed bolt and locknut, fixed bolt passes through support fixed hole, the supporting plate fixed hole of inner supporting plate and outer supporting plate, end head installs locknut and tightens fixed inner supporting plate and outer supporting plate and the multiple pipelines needing to be fixed.The utility model solves the problem that traditional wood supporting plate is easy to deviate and fall off, and the device is easy and efficient to operate, suitable for multiple pipeline installation scene.

A quick disconnect system. The quick disconnect system may include a head, a base, and a seal positioned between the head and the base. The head may include a receptacle and a channel having a locking portion. The base may include a sealing portion sized to be positioned within the receptacle of the head, a pin extending radially from the sealing portion of the base, and a locking nut. The pin may be sized to be positioned within the channel of the head such that relative rotation of the head and the base positions the pin within the locking portion. The locking nut may be positioned on a threaded portion of the base such that, when the pin is positioned within the locking portion of the channel, tightening the locking nut compresses the pin against a wall of the channel to prevent separation of the base and the head.

The utility model relates to encoder test board technical field, concretely is encoder test board, the utility model discloses, including the casing, the surface of casing installs support frame, the surface of support frame installs encoder mounting seat, the surface of encoder mounting seat installs first encoder, the surface of casing installs code wheel mounting seat, the surface of code wheel mounting seat installs encoding wheel, installs the bearing in the casing, installs the axle in the casing, the surface of axle installs lock nut, the surface fixedly connected with two fixed plates of encoder mounting seat, one side fixedly connected with two springs of fixed plate. Solveed staff when installing first encoder, cannot accurate first encoder place to the central of encoder mounting seat, lead to staff when installing first encoder to need to spend long time to cause staff installation efficiency lower problem.

The utility model discloses a kind of packing machines, belong to packing machine technical field, including fusion assembly and drive unit, drive unit drives fusion assembly work, fusion assembly includes compression unit, compression unit includes compression seat, support shaft, locking nut and limit block, support shaft is fixedly installed in compression seat, locking nut is installed in the threaded end of support shaft, support shaft is fixed in compression seat, limit block is set in the upper end of compression seat, limit locking nut rotation. Tensioning assembly's tensioning wheel and end cover are exposed outside shell, fusion assembly's fusion upper tooth and cutter unit are exposed outside shell, it is convenient to clean, maintain and adjust. A kind of packing machine of the utility model can conveniently and quickly adjust compression force to be suitable for different thicknesses of packing belt, and it is convenient to clean and maintain inside structure of packing machine.

This utility model relates to the technical field of food mixing blade components, and more particularly to a stainless steel mixing blade component with good stability. It includes a blade holder, a blade shaft, and a locking nut. The blade shaft is fitted with a vibration-damping and noise-reducing rubber ring. The blade shaft has multiple nanopores forming a nanopore surface. The vibration-damping and noise-reducing rubber ring is integrally injection molded and tightly bonded to the nanopore surface of the blade shaft to form an integrated structure. From top to bottom, an upper-layer mixing blade, a middle-layer mixing blade, and a lower-layer mixing blade are sequentially fitted onto the outer side of the vibration-damping and noise-reducing rubber ring. The locking nut locks the upper-layer, middle-layer, and lower-layer mixing blades downwards. This utility model not only avoids radial movement of the stainless steel mixing blade and hard contact with the blade shaft, but also ensures more uniform overall force distribution, greatly improving overall stability and reducing noise, making it more suitable for various food mixers.

This utility model relates to a fuel tank locking nut with a sealing gasket, belonging to the technical field of fuel tank locking nuts. The fuel tank locking nut with a sealing gasket includes: a nut with a sealing gasket at its bottom; and a sealing warning mechanism for alerting the user to leak oil from the sealing gasket. The sealing warning mechanism includes a mounting groove at the bottom of the nut, a warning component at the bottom of the mounting groove, and a sealing component between the warning component and the nut. The sealing warning mechanism can effectively detect and provide early warning of gasket leakage. Through the warning component, leaking oil can be identified early and a warning signal can be issued, preventing oil spillage. The sealing component, by indicating changes in compression pressure, helps installers confirm the sealing status, preventing seal failure due to over-pressure or under-pressure, and improving the stability of the sealing effect.

The application provides a fan blade connecting bolt cooperative stress structure, which comprises a plurality of blade mounting bolts arranged circumferentially along a blade butt flange, an inner flange structure is arranged at a head end, the inner flange structure is provided with a plurality of through holes in the circumferential direction, the blade mounting bolt is provided with an extending end, the extending end of the blade mounting bolt comprises a light axis positioning section and a threaded section, the threaded section is inserted into the through hole, a filling sleeve is sleeved outside the light axis positioning section, a clamping cavity is arranged between the filling sleeve and the inner wall of the through hole, an outer flange end is arranged at one end of a ring tooth, a glue filling channel is arranged in the inner flange end and is aligned with the clamping cavity, a filling glue layer is arranged in the clamping cavity, the threaded section passes through the through hole, a locking nut is sleeved on the through hole in a threaded connection mode, and one end of the locking nut is abutted against the outer flange end, so that the problem that a small part of fan blade mounting bolts is subjected to stress and is broken when the blade and the head are dislocated is solved.

The application relates to the field of floor cleaning machine parts technology, in particular to a water suction rake height limiting device which comprises a water suction rake main body, universal wheels and adjusting bolts, the water suction rake main body is fixedly connected with mounting plates through bolts, the mounting plates are arranged in a stepped mode, one mounting plate is symmetrically arranged on each side of the water suction rake main body, the universal wheels are arranged below the mounting plates, the adjusting bolts are fixedly connected with the universal wheels, connecting holes are formed in the mounting plates and used for allowing the adjusting bolts to pass through, a plurality of spring sheets are arranged on the rods of the adjusting bolts which pass through the connecting holes, and locking nuts are connected with the rods of the adjusting bolts which pass through the connecting holes. The application has the advantages of facilitating the adjustment of the height of the water suction rake and improving the working effect of the rubber.

The utility model discloses a kind of waste gas treatment conveying pipe support pedestal, it is related to support pedestal technical field, including pedestal body, multi-axis rotating assembly, pipeline support arm, elastic pipe clamp, adjustable support foot, the multi-axis rotating assembly is fixed on the pedestal body, for the pipeline support arm can rotate around multiple space coordinate axis direction, and realize arbitrary positioning by locking piece, the elastic pipe clamp thread installation pipeline support arm distal end, for waste gas conveying pipe is elastically clamped and fixed, the adjustable support foot bolt connection pedestal body bottom, for the accurate correction of support height is realized by thread adjustment, and elastic shock pad is equipped in bottom to absorb running vibration, by adopting multi-axis rotating assembly and limit rod grade positioning, realize pipeline support arm in space multidirectional free adjustment, and by locking nut quick fixing, adapt to complex pipeline layout demand.

A combined seal for high-speed gearboxes relates to a shaft sealing structure. This invention addresses the problem that existing contact and non-contact seals are insufficient for the shaft sealing performance of high-speed gearboxes, failing to provide reliable sealing. The invention includes an oil drain nozzle, a lock nut, an oil slinger ring, a graphite sealing ring, a graphite sealing ring mounting base, an adjusting ring, an oil baffle ring, and a bearing end cover. The bearing end cover is fitted onto the outside of the rotating shaft and fixed to the gearbox bushing. The lock nut is threaded to the rotating shaft and positioned on the outside of the bearing end cover. The oil slinger ring, graphite sealing ring mounting base, adjusting ring, and oil baffle ring are sequentially arranged from the outside to the inside between the bearing end cover and the outer wall of the rotating shaft. A graphite sealing ring is embedded in the graphite sealing ring mounting base. The oil drain nozzle is inserted into the outer end of the bearing end cover. This invention is used for gearbox shaft sealing.

The utility model discloses a metal button switch with locknut. Adopted technical scheme includes: base and be located on the base metal shell, be equipped with outer thread on the metal shell, and its characterized in that: the metal shell is connected with locknut assembly through outer thread, and the locknut assembly includes nut body and bolt, the nut body center is equipped with the first internal thread that is adapted with the outer thread, and one side is equipped with the protruding portion, and the bolt is located on the protruding portion.

The utility model discloses a rear wheel steering gear, including tail casing and main casing, the tail casing is connected with the main casing through the outside screw, be provided with the bearing in the tail casing, the bearing is fixedly installed in the bearing locking stud setting in the main casing through, the inside of bearing is fixed with the main nut through the locking nut, the main nut outer fixed mounting has the pulley, install motor pulley in the tail casing, fixedly install the pulley on motor pulley output shaft, the pulley is connected through the belt between two, the main casing is fixedly installed with motor controller assembly. Utilize screw rod to provide the driving force and self -locking force of the steering execution mechanism of car, and the spatial arrangement is compact, and the degree of integration is high, and the belt tension adjustment is adjusted through the straight pull structure, avoids using idler structure, effectively saves the space and the number of parts.

The utility model discloses a kind of variable-diameter tooling bolts, it includes: connecting screw rod, mandrel, bolt sleeve, guide locking nut, multiple adjusting sliders and spring.The middle part of mandrel is light pole, multiple frustopyramids are arranged at interval on light pole;The middle part of bolt sleeve is evenly opened with multiple long holes along circumference;The outer side of adjusting slider is camber surface, multiple wedges are arranged at interval in inner side;Mandrel is located in bolt sleeve and both ends are screwed with the both ends of bolt sleeve, one end of mandrel extends and passes out one end of bolt sleeve, and is screwed with guide locking nut;One end of connecting screw rod is inserted into bolt sleeve, and is screwed with the other end of bolt sleeve;Multiple adjusting sliders are coaxially installed in multiple long holes of bolt sleeve respectively, and axial relative fixation is kept, wedge cooperates with frustopyramid, spring is fixedly connected with the inner wall of bolt sleeve.Adopting the utility model can adjust the outer diameter of variable-diameter tooling bolt according to demand, improve versatility, assembly centering accuracy and quick disassembly ability.

The utility model provides a hammer head and hammer head assembly of crusher, relate to the field of hammer head of crusher, hammer head and hammer head assembly of crusher, including support cylinder, the side of support cylinder is equipped with right end plate, the side of support cylinder is equipped with left end plate, the outer surface of support cylinder is equipped with the connecting hole of annular arrangement, the inside of every connecting hole is equipped with the connecting block, every connecting block mutually far side surface all is fixedly connected with hammer head spare, the outer surface of every connecting block all is equipped with round hole, the inside of support cylinder is equipped with a plurality of fixed rod, the one end of every fixed rod all is fixedly connected with the limit board. This hammer head and hammer head assembly of crusher cooperate through fixed rod, locking nut, connecting block and connecting hole etc. parts, realized the convenient disassembly and installation of hammer head spare, so between hammer head spare and support cylinder can adopt detachable connection, when the hammer head spare wears, it is convenient to replace it.

The utility model discloses a device of cutting film, including device body, device body includes installing rod and cutting device, and cutting device is sleeved on installing rod, cutting device includes first side mounting plate, second side mounting plate, blade mounting plate, cutting blade and goes into the plug body, and blade mounting plate is equipped with several groups, and several groups blade mounting plate are installed between first side mounting plate and second side mounting plate in horizontal equidistance mode, and the locking bolt is threaded between first side mounting plate, second side mounting plate and several groups blade mounting plate, and locking nut is installed on locking bolt, blade mounting plate is rectangular structure, and the inner plate blade installation groove is seted up in one side of blade mounting plate, and a group of blade threaded holes are seted up in the inner plate blade installation groove, and a group of embedding holes are seted up on blade mounting plate surface. The device uses the equal interval horizontal arrangement fastening of scalpel to cut through the film surface, can effectively guarantee the accurate cutting width.

This utility model discloses a safety belt fixing device for shear walls, belonging to the field of building construction technology. The safety belt fixing device for shear walls in this utility model includes a main screw and a fixing pin. One end of the main screw is hinged to the middle of the fixing pin, and the other end of the main screw is threaded to a lifting eye nut. A locking nut is also threaded onto the main screw. One end of the fixing pin is connected to a retractable steel wire rope. This utility model has a simple structure, is easy to operate, lightweight and portable, and has high safety. It solves the problem of the firmness of the safety belt hook anchor point and allows for quick installation and disassembly from the inside of the wall, greatly reducing the safety risks to operators.

The utility model relates to a trolley technology field discloses a bus trolley battery mounting anti -loose fixed knot structure, including the frame, the one side of frame is provided with a plurality of connecting bolts, the one side of frame is provided with the battery protection board, the one side of battery protection board away from frame is provided with a plurality of anti -loose gasket, the one side of anti -loose gasket away from battery protection board is provided with locking nut subassembly, the outer wall of connecting bolt is connected in the inner wall of locking nut subassembly, the outer wall of connecting bolt is provided with anti -loose subassembly. In the utility model, through frame and battery protection board provide support for battery, through the thread connection of connecting bolt and locking nut subassembly, through the function of anti -loose gasket and locking nut subassembly self -locking anti -loose, and through the cooperation of anti -loose subassembly, thereby solved the situation that traditional torque control assembly process exists clamping force attenuation, and then make long -time frequent vibration can lead to the problem of nut loosening.

This utility model discloses a dual-screen lifting bracket for fishing gear, comprising a mounting base. A long bracket or a short bracket extension is mounted on the upper end of the mounting base. Both the long bracket and the short bracket extension have a two-stage lifting rotating seat threadedly connected to their side walls. A first-stage lifting rotating seat is located at the lower end of the two-stage lifting rotating seat. An upper locking seat is located at the lower end of the first-stage lifting rotating seat, and a lower locking seat is located at the lower end of the upper locking seat. A second fixing pin is mounted on the side wall of the lower locking seat. With this structure, the upper locking seat has a second locking seat pin handle on one side, a first pin on one side of the second locking seat pin handle, and a second locking nut on the other side of the upper locking seat. The lower locking seat has a first locking seat pin handle on one side, a second pin fixedly mounted on one side of the first locking seat pin handle, and a first locking nut on the other side of the lower locking seat. After being raised to the desired height, it is locked and fixed to prevent slippage.

The utility model relates to metal bar material pouring field discloses a metal bar material pouring mould, including iron sheet, the top side fixedly connected with graphite cushion block of iron sheet, the top side of graphite cushion block is provided with graphite mould, the outer wall of graphite mould is equipped with iron ring, the four corners of graphite cushion block top side all are fixedly connected with screw rod, the outer wall of screw rod is provided with lock nut, the left and right sides of iron sheet top side all are fixedly connected with support groove, the inside of two support grooves is connected with hopper through adjusting assembly, and the similar side of two support grooves all is provided with support component. In the utility model, the flow is guided through the hopper, the flow rate of metal liquid is reduced, the feeding is supplemented through the hopper, the height of the hopper can be adjusted, different flow rate requirements are adapted, the mould is clamped and fixed through the clamping ring, additional support is provided, the stability during pouring is improved, and the mould of different height can be supported.

The application discloses a bicycle clutch sprocket, a cylindrical cam with protrusions symmetrically arranged on the outer periphery is fixedly connected with one end of a five-way shaft sleeve through a middle through hole, a clutch disc is sleeved on a spline shaft outside the middle shaft, a rubber column is fixedly arranged on the clutch disc through a first jackscrew, and the top end of the rubber column is in contact with the cylindrical cam; spring sheets are arranged on the right side of the clutch disc, and the left side of the sprocket is a retaining ring sleeved on a cylindrical shaft and fixedly connected with the cylindrical shaft through a second jackscrew; a left crank is sleeved on the first square shaft section, the left crank is locked through a locking nut on the first screw rod, and a left pedal is arranged at the other end of the left crank. Compared with a traditional bicycle sprocket, the clutch disc and the sprocket can be automatically engaged or separated, the pedal can quickly pass through the inconvenient working stroke near the lowest point, the bicycle has more advantages in climbing and rapid acceleration, the power is greatly improved, and the pedal driving is more convenient.

The application provides a kind of corrosion-resistant prefabricated concrete drain pipe, including pipe body, fixed unit and connecting bolt, locking nut, pipe body includes body and boss, boss is equipped with the both sides of body, fixed unit includes first fastener and second fastener, first fastener, second fixed piece includes the semicircular fixed ring of symmetrical arrangement, fixed seat and first bolt, both sides semicircular fixed ring is equipped with second connecting hole opposite side, wherein first fastener side still includes connecting rod, second fastener side is equipped with matching hole, connecting bolt and locking nut are matched with second connecting hole.This application uses boss to be fixed with first fastener and second fastener, wherein first fastener, second fixed piece opposite side is equipped with connecting rod and matching hole respectively, connecting rod and matching hole are correspondingly arranged, ensure installation precision and accuracy, cooperate sealing ring and rubber washer ensure the sealing property between pipe body, the corrosion-resistant layer in pipe body improves the corrosion-resistant performance of pipe body.

The utility model belongs to tooling technical field, concretely relates to a CVT gearbox driven wheel oil pressure test tooling, include: mounting sleeve seat, the inner bottom of mounting sleeve seat is provided with the bearing ring, ball bearing, ball bearing is installed in mounting sleeve seat, and ball bearing outer ring rests in bearing ring, locking nut, locking nut is located ball bearing top, seat cover, seat cover buckling in mounting sleeve seat top mouth department, and through connecting structure with mounting sleeve seat carry out firm assembly, seat cover top center is provided with the oil filler pipe, seat cover bottom center is provided with the butt joint pipe, the oil filler pipe is through -going with butt joint pipe, and the bottom peripheral wall of butt joint pipe is provided with sealing ring through the clamping structure, is used to solve the problem that the oil pressure test is not accurate when adopting the oil pressure leak detection machine to carry out the oil pressure test to driven wheel hydraulic cylinder, leads to the inaccuracy of oil pressure test when testing because of lacking some auxiliary tooling, also can not test the sealing property of sealing ring.

This utility model relates to a test accelerator pedal locking fixture, comprising a base, a support frame, and an adjustment mechanism. The base supports the entire fixture and is placed on the driver's seat floor. One end of the support frame is fixedly welded to the base, and the other end extends freely upwards with a U-shaped groove at its top. The adjustment mechanism is located in the U-shaped groove of the support frame and includes a screw and a pair of locking nuts. The screw passes perpendicularly through the U-shaped groove to the support frame. The pair of locking nuts, with a diameter larger than the width of the U-shaped groove, are located on opposite sides of the U-shaped groove and are threadedly engaged with the screw to lock it to the support frame. This fixture has the advantages of convenient installation, high control precision, and low cost, and is suitable for laboratory and real-vehicle testing scenarios.

The utility model relates to a stay wire rod technical field especially to a stay wire rod convenient to dismount, including two groups of left and right symmetry distribution's half stay wire rod, two groups half stay wire rod are all fixed sleeve connection with the connecting clamping sleeve to the end of facing each other, the inside screw hole is opened to the outside of connecting clamping sleeve and is opened to the inside up and down symmetry, the one end of connecting clamping sleeve and the central position department is provided with the positioning boss, two groups half stay wire rod between through stay wire rod connecting mechanism and connect, in the utility model, when connecting two groups of half stay wire rod, according to the length demand of two groups of half stay wire rod after connecting to adjust the distance between the outer telescopic sleeve and the inner telescopic rod, and the exposed spring buckle part is locked through the lock nut, after adjusting, the elastic of abutting spring makes the abutting piece abut in the one end of inner telescopic rod, under the action of elastic enhancement, the spring buckle forms the counterforce, avoids the problem that the spring buckle appears to shake and looseness.

This utility model discloses a universal auxiliary tool for testing the sealing performance of mechanical injectors, including a base with a horizontal mandrel installed in its mandrel mounting hole; a pressure plate assembly, the pressure plate being axially movable and installed at the end of the mandrel, the end of the mandrel being threadedly connected to a locking nut; at least two sets of V-shaped support adjustment assemblies, spaced apart along the axial direction of the mandrel and slidably fitted onto the mandrel through shaft holes, located between the base and the pressure plate; a pipe joint clamping mechanism, the pipe joint support being axially slidably fitted onto the mandrel, the side facing the base having a pipe joint and a synchronous clamping seal, the sealing end face of the synchronous clamping seal being in sealing fit with the end face of the injector cap, the pipe joint on the pressure plate side having a guide post, a pressure head and a first return spring; a positioning assembly, a pad being fixed to the side of the base facing the pressure plate; and a locking nut adjusting the axial displacement of the pressure plate, driving the pipe joint support to move, so that the synchronous clamping seal is pressed tightly against the end face of the injector cap, meeting the testing needs of different production scenarios.

This utility model discloses an automatic graphite block adjusting lubrication device, relating to the field of mechanical engineering lubrication technology. It includes a frame adjusting screw, a locking nut, an adjusting nut, a sleeve, a guide shaft, a bushing, a push plate, a spring sleeve, a spring, a housing assembly, and a cover plate. The housing assembly is used to fix the sleeve, push plate, and bushing. The graphite block is placed on the push plate, the cover plate is closed, and it is secured with bolts. The adjusting nut is rotated to allow the graphite block to press against the part requiring lubrication, thus applying force to the spring. Finally, the locking nut is tightened to prevent the adjusting nut from loosening and causing the spring to lose force. This automatic graphite block adjusting lubrication device is not only suitable for large rotary kilns but also for equipment requiring lubrication under extreme high temperature, low temperature, and humid conditions. This device is safe and reliable, solving equipment failures caused by improper lubrication in large rotary kilns and reducing economic and manpower losses during maintenance.

This utility model provides a clamping jaw for holding molded ingots, relating to the field of lifting equipment lifting devices. It includes: an integral pin-type clamping jaw shaft, wherein the working surface of the clamping jaw on the shaft has a pin-type protrusion structure to enhance clamping force; both ends of the clamping jaw shaft are provided with positioning journals, locking grooves, locking nuts, and positioning bolts for fixing and positioning. Using this utility model, the clamping force is increased by more than 40%, effectively preventing slippage; replacement time is reduced from 2 hours to 15 minutes; service life is extended by 3-5 times; it can adapt to high-temperature environments of 300-800℃; and maintenance costs are reduced by 60%.

The utility model discloses adjustable big aperture combination boring cutter for boring and milling machine relates to boring and milling machine equipment technical field, including the cutter bar, the one side of cutter bar is provided with handle, the other side of cutter bar is fastened to handle through locking nut. The other side of cutter bar is provided with the cutter bush of adjustable position, be provided with the tool bit on the cutter bush, be fixed to the tool bit on the cutter bush through the compression bolt. The present application simple structure and convenient operation, through the sliding cutter bush and install locking bolt in corresponding mounting hole to cutter bush fixed, thereby can change the extension length of tool bit, the processing of convenient to different specifications round hole, no longer need to configure different specifications boring tool, greatly reduce cost.