CN206468665U - A kind of fastening structure, it is fastenedly connected component, crankshaft connecting rod system - Google Patents

A kind of fastening structure, it is fastenedly connected component, crankshaft connecting rod system Download PDF

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Publication number
CN206468665U
CN206468665U CN201620999511.3U CN201620999511U CN206468665U CN 206468665 U CN206468665 U CN 206468665U CN 201620999511 U CN201620999511 U CN 201620999511U CN 206468665 U CN206468665 U CN 206468665U
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rotation stop
hole
rotation
locking nut
screw rod
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杨东佐
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Abstract

A kind of fastening structure, including it is fastenedly connected component, parent, attached body；Being fastenedly connected component includes screw rod, locking nut, rotation stop set；Axial projection Constrained rotation stop set unscrews the rotation stop set rotation stop boss that direction rotates towards screw rod on the end face that rotation stop covers；Parent and attached body are fastened together by screw rod with locking nut；Rotation stop set is arranged on outside locking nut, rotation stop set rotation stop boss is inserted in attached body rotation stop hole, and rotation stop set by axial limiting outside locking nut, rotation stop covers rotation stop boss and rotated relative to attached body unscrewing the side in direction towards locking nut and keep out constraint rotation stop set by attached body rotation stop hole；Parent, attached body are non-rotatably fastened together by screw rod with locking nut.Advantage is not need rotation stop part, it is not required that rotation stop hole is processed on attached body, and the installation of rotation stop set takes out quick and easy, reliable, and screw rod will not be inverted and released.The utility model is also disclosed one kind and is fastenedly connected component, crankshaft connecting rod system.

Description

A kind of fastening structure, it is fastenedly connected component, crankshaft connecting rod system
Technical field：
Technology is fastenedly connected the present invention relates to a kind of quiet more than two objects of connection of screw thread pair machinery；More particularly to It is a kind of to pass through screw rod and the mechanical static connection crankshaft connecting rod system of locking nut, track structure, aircraft, ship, equipment, Aero-Space Equipment, aircraft carrier, airship, rocket, engine, nuclear reaction equipment, train, high ferro, rail, steel building, steel structure bridge, vapour The fastening structures of the machine components on key position in car etc. plant equipment, spline structure, it is fastenedly connected component, song Axle linkage, especially severe big, hot environment, the load of such as shaking of use environment of these machine components is big, and to screw thread The connection reliability of secondary machinery static connection requires especially high.
Background technology
There is the bolt fracture of some key positions connection, the failure of threaded connection in the quiet connection of screw thread pair machinery between object Caused safety problem and security incident, through being commonly encountered, are the common faults that the whole world faces, are also that those skilled in the art constantly grinds Study carefully improvement also open question anxious to be resolved.Stove bolt, major break down, often because major accident, such as vapour occur for bolt fracture The connecting-rod bolts fracture of the engine of car causes to smash cylinder accident；The Harbin tower crane bolt fracture occurred on April 18th, 2009 is made Into 1 it is dead 4 wound accident；7 anchor bolt fractures are detected according to number machine reacting furnace of two factory of core of TaiWan, China media report, ruined Damage may cause the accident of nuclear safety；45 distribute life, No. 5 cockpit support systems middle guide pillar spiral shell during 29 days 16 June in 2012 Bolt occurs fatigue fracture, causes Shenzhen Eastern Chinese Overseas Town " star trek " entertainment selection 6 people of generation dead, 10 people injury great Security incident；As the representative producer of high-end vehicles, because the technical problem of broken screw can not be solved, cause BMW engine because The broken screw moment misfire event that runs out of steam causes to recall 230,000 cars (BMW (China) automotive trade Co., Ltd, Huachen BMW Co., Ltd was determined from 18 days June in 2014, recalled 230,000 cars), manufacturing firm is by huge economic losses With goodwill loss, the security of the lives and property of car owner can be more seriously caused.Although under many circumstances, particularly in vibration shape Under state, it is often necessary to reinforced to the fastening connection piece periodic inspection locked, prevent screw thread pair court from unscrewing direction and rotating loosening The security incident brought even is released, but the whole world is annual because a series of security incidents are very caused by threaded connection failure Many, example is too numerous to enumerate.
The reliability of threaded connection is come by the friction between the friction generation self-locking of screw thread pair and the contact surface of screw thread pair Ensure.In general, connection screw thread has certain self-locking performance, can't release automatically under static load conditions.But, due to Inevitably there is shock and vibration, varying load effect in the condition of work of connection.Under these working conditions, screw thread pair it Between frictional force momentary loss or reduction occurs；Simultaneously in high temperature or temperature change than larger occasion, material can occur compacted Become and stress relaxation, can also reduce frictional force.Under multiple effect, gradually releasing for threaded connection will result in.
The failure of threaded connection, being primarily due to pretightning force reduction causes screw thread to release, therefore thread connection anti-loose Essence, exactly prevent the court of screw thread pair from unscrewing direction and rotating (the side of unscrewing of court namely between internal thread hole and external thread part To rotation), rotated as the court between bolts and nuts unscrews direction.
Existing mechanical anti-loose method is main locking using machineries such as split pin, locked spacer and string steel wire ropes Method.Now aboard much also using the anti-loose method of series connection steel wire rope.
In order to prevent threaded connection from releasing, people are always in unremitting effort.
The U.S. that Patent No. US1755807, the applying date are April 6 nineteen twenty-nine, publication date is April 22 nineteen thirty is special In profit, a kind of locking bolt and nut structure, including screw rod, locking nut, rotation stop set are disclosed.Screw thread is provided with locking nut The rotation stop hole of through hole and the internal tooth wheel shape communicated therewith, the minimum-value aperture in rotation stop hole is more than the aperture of tapped through hole.Rotation stop is arranged There is rotation stop through hole, rotation stop set periphery is external tooth wheel shape, and rotation stop through hole hole wall is provided with rotation stop bar, is provided with and rotation stop bar on screw rod The rotation stop groove of cooperation.The external tooth wheel shape periphery of rotation stop set and locking nut rotation stop hole gerotor type hole wall fiting constraint locking nut Cover and rotate relative to rotation stop, the rotation stop groove constraint screw rod of the rotation stop set insertion screw rod of rotation stop set covers relative to rotation stop to be rotated, therefore screw rod Together with being nonrotatably mounted tO with locking nut.In the patent, because rotation stop set is contained in the rotation stop hole of locking nut completely In, rotation stop set is difficult to be taken out from the rotation stop hole of locking nut；And during screw rod, the use of nut, due to rotation stop set, Screw rod and nut get rusty, dust enter rotation stop cover between screw rod and nut, rotation stop set and screw rod and nut the meeting such as interpenetrate Cause rotation stop to cover and produce very big snap-in force between bolt and nut, so as to cause rotation stop set can not be taken out between screw rod and nut. If rotation stop set is difficult or can not taken out between screw rod and nut, it is difficult to or nut and screw rod can not be separated, thus but loses Go to connect the most basic purposes for being just able to easily separate screw rod and nut using screw thread pair, thus this spiral shell Bar and nut structure are without great use value.
Patent No. ZL201510198765.5, application publication number be CN 104819197A, the applying date be in April, 2015 24 days, during date of publication is in August, 2015 patent of invention of 6 days, a kind of Anti-loosening nut attachment structure, including connector and pass through Nut is screwed on the screw rod of connector, screw rod to fasten connector, one locking lasso of socket on the outside of nut, locking lasso is with being connected Anti-rotational structure is provided between part, anti-rotational structure includes the deep gouge that correspondence nut is set on connector, and nut screws rear bottom and set In in deep gouge, locking lasso outer ring is provided with dop, and deep gouge madial wall is provided with the neck being caught in for dop；Locking lasso is highly less than The height of deep gouge, is interference fit between locking lasso and nut and deep gouge.The Anti-loosening nut attachment structure of the invention, by In adding a locking lasso, and anti-rotational structure is provided between locking lasso and connector, locking lasso inner ring is and nut The regular hexagon structure of cooperation, can not be rotated against between locking lasso inner ring and nut, while anti-rotational structure prevents loose-proof sleeve Circle is rotated against with connector, thus can prevent nut from being loosened after fastening.This Anti-loosening nut attachment structure, although realize The loosening of nut is prevented, but on the one hand because locking lasso highly is less than height, locking lasso and nut and the deep gouge of deep gouge Between for interference fit, dismantle Anti-loosening nut attachment structure when, locking lasso is can not to be taken out out of deep gouge, it is impossible to Take out locking lasso, nut and screw rod can not just be separated, thus but lose using screw thread pair connection be exactly in order to be able to Enough most basic purposes for easily separating screw rod and nut, thus this structure is without in all senses；On the other hand, Deep gouge madial wall is provided with the neck being caught in for dop, and this notch can not be machined out, if not in advance with quilt Connector is molded together, then needs just be processed with techniques such as electric sparks, thus use cost is especially high；Further, if Not to screw rod rotation stop, screw rod still can be rotated relative to locking nut, only be also without any realistic meaning to nut rotation stop.It is above-mentioned Various reasons, can make the technical scheme that those skilled in the art thinks the invention without any use value, and this is hindered significantly The technical staff in field improves the enthusiasm of the technical scheme of the patent.
Patent No. ZL97112246.6, publication date for 97112246.6 patent of invention in, disclose a kind of locking spiral shell Mother, including tool mounting-portion and the annular protrusion for being coaxial therewith projecting upwards setting, between which have the screwed hole of insertion.This Stop nut is planted, is exactly HardLock nuts, is known as unique tight nut absolutely in the world, is the industrial strain formula of Hadlock A president Ruo Linke men of virtue and ability for commercial firm have used the time of nearly 20 years, the technological achievement found out by continuous technological improvement, now Using relatively more in high ferro.When high ferro is runed, the train and rail run at high speed constantly are contacted, and the vibrations of formation are very big, and one As screw can be quaked loose in this vibrations shake fly.It is not desired to be shaken winged, then be accomplished by screw and nut is intricately woven together, never Loosen.This requirement seems very simple, but to meet it and be not easy to.High ferro represents Created in China, but with Japan Nut, thus there are media to send the similar exclamation for finding out made in China and the gap of Japan's manufacture from a nut.But this spiral shell Female manufacturing process is extremely complex, and the accuracy of manufacture requires especially high, and present situation is that have product figure, have product, without Ha Deluo Unique technology and tricks of the trade of gram company, can not but be manufactured, thus expensive, at least tens yuans；This spiral shell Mother can not also accomplish completely not loose, and simply anti-loosing effect calculates good in existing stop nut；This nut, is reused It cannot be used again after tens times.
In Patent No. ZL201520399393.8 utility model patent, a kind of self-tightening nut, bolt fastening are disclosed Part, fastener includes self-tightening nut body, self-tightening packing ring and plain bolt；Self-tightening nut body and self-tightening washer contacts face are flat Slip over the helicoid crossed；Self-tightening nut body is threadedly coupled with plain bolt；Bolt fastener includes self-locking bolt, self-tightening packing ring And plain nut；Plain nut is threadedly coupled with self-locking bolt.Self-tightening nut, the bolt fastener, using autofrettage, in spiral shell A self-tightening structure is set on female or bolt, it is reached the effect of self-tightening after locking, allows nut no longer to occur shifting or loosening. Oneself this nut, the also known as nut of self-tightening king nut and never becoming loose, and its anti-loose ability is declared more than hardlock nuts, Had been reported that in CCTV.This nut is not due to widely using, and how is its anti-loosing effect, it is impossible to judges.
Publication No. CN201934467U, publication date be in August, 2011 utility model patent of 17 days in, disclose one kind Front-end single-threaded spiral rear double-line anchoring screw, it mainly includes screw rod, and screw rod is provided with tapping screw thread, and screw rod tail end is provided with Connection member, connection member is outer-hexagonal head, and outer-hexagonal head is provided with pad, and pad bottom is provided with locking teeth.The practicality In new, disclosed is only a kind of bolt structure, and described all structures are a parts for bolt structure, from figure and outer six From the point of view of on literal expression of the angle head provided with pad, can undoubtedly be interpreted as pad is a part for screw, therefore does not deposit The rotation stop through hole with the cooperation of outer-hexagonal head is being provided with pad, pad is arranged on outside outer-hexagonal head, and pad is to separate with screw rod Two components.Because pad is a part for screw, during the screw-in of screw, locking teeth on pad and pad also with Screw rod to rotate together, although being provided with locking teeth so on pad, locking teeth is not only in the connected object of insertion The object that axially insertion is connected, but the connected object of axial and circumferential displacement insertion is produced in the process of rotation, so Locking teeth can form one along screw screw-in direction from-shallow-to-deep on the surface for being connected object during screw rotates Circumferential slot.On the one hand circumferential slot destroys and is connected the attractive in appearance of object outward appearance；On the other hand greatly reduce locking teeth be connected The insertion force of object, it may be said that reverse anti-loose effect of the locking teeth to screw is extremely limited；Especially because embedded tooth Presence, it is difficult the connected object of locking to make screw.Therefore the locking teeth of the screw of this structure, has been not the work loosened , the screw of this structure is without any use value.
From Patent No. US1755807, the applying date for April 6 nineteen twenty-nine United States Patent (USP) in, invented with rotation stop set come The loosing Prevention Technology that bolt opposing nut is rotated is limited, is April 24 in 2015 to Patent No. ZL201510198765.5, the applying date In the Chinese invention patent of day, rotation stop set is proposed again to limit the technical scheme of nut rotation, 86 years is lasted, does not all have Solve can it is locking to screw bolt and nut with rotation stop set or with rotation stop set it is locking to screw bolt and nut and can fast and easy it is reliable Rotation stop set is taken out so that the technical problem that screw bolt and nut is separated from rotation stop hole.It is existing to think that anti-loosing effect is good Hardlock nuts, self-tightening king's nut, are not to prevent nut rotation from realizing that bolt and nut is locking by using rotation stop set；It hurry up Oneth century went over, and the technology application that bolt and nut is locking is also realized not over prevention nut rotation is covered using rotation stop； It can be seen that, it can prevent nut rotation using rotation stop set to realize the locking bolt and nut of bolt and nut very although people have been absorbed in Technology mistaken ideas that are difficult or can not dismantling, form and cover prevention nut rotation using rotation stop to realize technology that bolt and nut is locking The inertial thinking having no value for use, so that prevent those skilled in the art to improve prevents nut rotation come real using rotation stop set The enthusiasm of the locking technical scheme of existing bolt and nut.
The fastening structure of above-mentioned prior art, is all to need rotation stop being placed on constraint locking screw parent phase in rotation stop hole Direction is unscrewed to screw rod court to rotate.Have the disadvantage if rotation stop set be contained in completely in rotation stop hole, if again not by rotation stop set from The taking-up structure taken out in rotation stop hole, rotation stop set is difficult to be taken out from rotation stop hole；Also, it is necessary to be processed and rotation stop set on attached body The rotation stop hole of cooperation, or need one be nonrotatably mounted tO with attached body together with rotation stop part, on rotation stop part processing with only The rotation stop hole that pivoted housing periphery coordinates, cost is high.
The content of the invention
For problems of the prior art, recognize instant invention overcomes existing those skilled in the art and use rotation stop Set limitation screw thread pair court unscrews the loosing Prevention Technology scheme of direction rotational release, because rotation stop set is difficult or can not be from the first rotation stop hole Take out, cause the inertial thinking that has no value for use.
The technical problem to be solved in the present invention is to provide one kind and does not need rotation stop part, is also not required to be provided with rotation stop set periphery Rotation stop cover outer rotation prevention portion, on attached body processing and rotation stop cover rotation stop hole that periphery coordinates and rotated relative to attached body constraining rotation stop set, Simple in construction, rotation stop covers the fastening structure of easy installation and removal, is fastenedly connected component, crankshaft connecting rod system.
A kind of fastening structure, including it is fastenedly connected component, parent, attached body；Being fastenedly connected component includes screw rod, locking Nut；Screw rod includes external thread part, rotation stop blocking part, rotation stop blocking part radially protruding external thread part；It is equipped with parent, attached body The through hole coordinated with the external thread part of screw rod；Screw rod is threadedly coupled through the through hole on parent, the through hole of attached body with locking nut, Screw rod is non-rotatably installed together with parent；Being fastenedly connected component also includes rotation stop set；The periphery of locking nut is provided with week To evenly distributed, axial nut rotation prevention portion；The rotation stop through hole of an axial direction, the hole wall of rotation stop through hole are provided only with rotation stop set It is provided with rotation prevention portion in the rotation stop set coordinated with nut rotation prevention portion；The axial projection Constrained rotation stop on the end face that rotation stop covers Cover and unscrew the rotation stop that direction rotates towards locking nut and cover rotation stop boss, rotation stop set rotation stop boss keep out position circumferential direction, Direction is unscrewed towards locking nut；The attached body for covering the cooperation of rotation stop boss gap with rotation stop is provided with attached body away from the side of parent to stop Turn hole；Rotation stop set is arranged on outside locking nut, and rotation stop set rotation stop boss is inserted in attached body rotation stop hole, and rotation stop set is by axial limiting Outside locking nut；Nut rotation prevention portion covers relative to rotation stop with rotation prevention portion fiting constraint locking nut in rotation stop set and rotated, rotation stop set Rotation stop boss is kept out constraint rotation stop set by attached body rotation stop hole in the side that direction is unscrewed towards locking nut and rotated relative to attached body；Spiral shell Bar, locking nut are non-rotatably installed together with parent, attached body.
A kind of fastening structure, including it is fastenedly connected component, parent, attached body；Being fastenedly connected component includes screw rod, locking Nut；Screw rod includes external thread part, rotation stop blocking part, rotation stop blocking part radially protruding external thread part；It is equipped with parent, attached body The through hole coordinated with the external thread part of screw rod；Being fastenedly connected component also includes rotation stop set, rotation stop pad；The periphery of locking nut is provided with Circumferential evenly distributed, axial nut rotation prevention portion；The rotation stop through hole of an axial direction, the hole of rotation stop through hole are provided only with rotation stop set Wall is provided with rotation prevention portion in the rotation stop set coordinated with nut rotation prevention portion；Axial projection Constrained stops on the end face that rotation stop covers Pivoted housing unscrews the rotation stop that direction rotates towards locking nut and covers rotation stop boss, and rotation stop set rotation stop boss keeps out position in circumferential side To, towards locking nut unscrew direction；The through hole coordinated with the external thread part of screw rod is provided with rotation stop pad and rotation stop covers rotation stop The rotation stop pad rotation stop hole that boss gap coordinates；In rotation stop pad towards being convexly equipped with rotation stop pad rotation stop boss on the end face of attached body；
The height of rotation stop set rotation stop boss is less than or equal to the thickness of rotation stop pad, is provided with convex with rotation stop pad rotation stop on attached body The attached body rotation stop hole that platform coordinates；Screw rod passes through through hole, the through hole on attached body, the through hole of rotation stop pad and the locking nut spiral shell on parent Line is connected, and screw rod is non-rotatably installed together with parent；Rotation stop pad rotation stop boss, which is inserted, constrains rotation stop in attached body rotation stop hole Pad is relative to the rotation of attached body；Rotation stop set is arranged on outside locking nut, in rotation stop set rotation stop boss insertion rotation stop pad rotation stop hole, and rotation stop Set is by axial limiting outside locking nut；Nut rotation prevention portion rotation stop set relative with rotation prevention portion fiting constraint locking nut in rotation stop set Rotation, rotation stop set rotation stop boss keeps out constraint rotation stop by rotation stop pad rotation stop hole in the side that direction is unscrewed towards locking nut and covers phase Rotation stop pad is rotated；Screw rod, locking nut are non-rotatably installed together with parent, attached body, rotation stop pad.
One kind is fastenedly connected component, in addition to screw rod, locking nut；Screw rod includes external thread part, rotation stop blocking part, rotation stop Blocking part radially protruding external thread part；Also include rotation stop set；The periphery of locking nut is provided with circumferential evenly distributed, axial nut Rotation prevention portion；Rotation stop set is ring-type, and the rotation stop through hole of an axial direction is provided only with rotation stop set, is provided with the hole wall of rotation stop through hole Rotation prevention portion in circumferential evenly distributed, axial rotation stop set；Axially it is convexly equipped with and attached body rotation stop hole on the end face that rotation stop covers And/or rotation stop pad rotation stop hole coordinates, constraint rotation stop set unscrews the rotation stop set rotation stop boss that direction rotates, rotation stop set towards locking nut The position of keeping out of rotation stop boss unscrews direction in circumferential direction, towards locking nut；The height of rotation stop set rotation stop boss is more than only The axial length of rotation prevention portion in pivoted housing；Screw rod and locking nut threaded connection, rotation stop set are arranged on outside locking nut；Nut rotation stop Portion covers relative to rotation stop with rotation prevention portion fiting constraint locking nut in rotation stop set and rotated.
As an improvement, described rotation stop set also includes elastic arm；It is provided with and is connected with rotation stop through hole and elasticity on rotation stop set Arm coordinates, provides the avoiding hollow groove of deformation space for housing elastic arm and being deformed for elastic arm, and described rotation stop through hole is non-closes The hole of conjunction；One end of elastic arm covers the side for covering rotation stop boss away from rotation stop with rotation stop and is connected, and the other end is arranged with towards rotation stop The side of rotation stop set rotation stop boss is simultaneously radially provided with limiting section in the end at the end to the axle center of rotation stop through hole, and limiting section is with stopping The axis for turning through hole is vertical, limiting section radially protruding rotation stop through hole；Described elastic arm is just right with described avoiding hollow groove.
This structure rotation stop set, puts because the interior rotation prevention portion of rotation stop set is arranged on rotation stop, without being provided in elastic arm On limiting section, rotation stop through hole will not be deformed because of external force, and rotation stop effect is good.
As an improvement, also include locating part, rotation stop set one locating part of correspondence；
Locating part includes the locating part body of ring-type, and a central through hole is provided only with the center of locating part body, The minimum-value aperture of central through hole is more than the maximum diameter of hole of rotation stop through hole；Also include the more than two bullets being connected with locating part body Property arm, elastic arm end to central through hole axis direction be provided with the limiting section parallel with locating part body, limiting section radial convex Go out central through hole；The minimum diameter of more than two limiting sections is less than the minimum diameter of rotation stop through hole；Rotation stop set on be provided with Elastic arm coordinates, for housing elastic arm and provide the empty avoiding space of deformation space for elastic arm deformation；By locating part and rotation stop Set is installed together, the empty avoiding interference fit that elastic arm covers with rotation stop；The rotation stop of the limiting section radially protruding rotation stop set of locating part Through hole；The limiting section for being more than locating part in the maximum deflection of the direction parallel with locating part body, elastic arm protrudes rotation stop set Rotation stop through hole hole wall length.
As an improvement, also including locating part；Described locating part includes more than two elastic spacing ones；Described elasticity Locating part includes horizontal limiting section, the first elastic arm of vertical limiting section bending, along the first elastic arm end to spacing Portion direction and parallel limiting section bending, again away from limiting section direction reversely obliquely bend, reversely bend, be re-directed towards obliquely again Limiting section direction and the buckle of parallel limiting section bending, then along the second elastic arm of buckle end bending downwards, then Along the end of the second elastic arm away from the blocking part of the parallel limiting section bending in limiting section direction；It is provided with and bullet on rotation stop set Property arm coordinate, for housing elastic arm and provide the emptiness avoiding hole of deformation space for elastic arm deformation；By the spacing of elastic spacing one Elastic buckle is simultaneously passed through the empty avoiding through hole that rotation stop is put by axle center that portion covers towards rotation stop, by elastic spacing one side by card Button is kept out, side is kept out by blocking part and is installed together elastic spacing one and locating part, and the limiting section of elastic spacing one is radially The hole wall of the rotation stop through hole of rotation stop set is protruded, the distance between two elastic arms of elastic spacing one are more than the spacing of elastic spacing one The length of the hole wall of the rotation stop through hole of portion's protrusion rotation stop set.
The rotation stop limit assembly of this structure, elastic spacing one can be metallic stamping pieces, and elastic spacing one is directly buckled in Rotation stop, which is put, is installed together elastic spacing one with rotation stop set, and cost is low, and elastic spacing one covers also detachable with respect to rotation stop, and And also greatly reduce the material cost of locating part.
As an improvement, the periphery of locking nut sets the limiting section accommodation space coordinated with limiting section, in the accommodating sky of limiting section Between towards the face of the rotation stop blocking part of screw rod be to keep out face for keep out limiting section；
Rotation stop set is arranged on outside locking nut, and elastic arm makes limiting section insert limiting section accommodation space by elastic deformation Keep out, the side axial limiting away from external thread part is covered to rotation stop in the face of keeping out that is interior and being limited portion's accommodation space.
A kind of fastening structure for being fastenedly connected component including scheme three, in addition to parent, attached body；Parent, attached body On be equipped with through hole with the cooperation of the external thread part of screw rod；
Being fastenedly connected component also includes rotation stop pad；Be provided with rotation stop pad coordinate with the external thread part of screw rod through hole, with The rotation stop pad rotation stop hole that rotation stop set rotation stop boss gap coordinates；The height of rotation stop set rotation stop boss is less than or equal to the thickness of rotation stop pad Degree；
Screw rod is threadedly coupled through the through hole on parent, the through hole on attached body, the through hole of rotation stop pad with locking nut, screw rod Non-rotatably it is installed together with parent；The side covered from rotation stop is acted as a cushion provided with embedded division in rotation stop, and the hardness of attached body is less than The hardness of the embedded division of rotation stop pad, the attached internal constraint rotation stop pad of embedded division insertion of rotation stop pad rotates relative to attached body；Or in rotation stop Act as a cushion from rotation stop cover side be coated with friction particles, sufficiently large frictional force is produced between the friction particles of rotation stop pad and attached body about Beam rotation stop pad rotates relative to attached body；Or rotation stop pad is fixed on constraint rotation stop pad on attached body by fixing glue and rotated relative to attached body；Only Pivoted housing is arranged on outside locking nut, in rotation stop set rotation stop boss insertion rotation stop pad rotation stop hole, and rotation stop set is being locked by axial limiting Outside tight nut；Nut rotation prevention portion covers relative to rotation stop with rotation prevention portion fiting constraint locking nut in rotation stop set and rotated, rotation stop set rotation stop Boss is kept out constraint rotation stop set by rotation stop pad rotation stop hole in the side that direction is unscrewed towards locking nut and rotated relative to rotation stop pad；Spiral shell Bar, locking nut are non-rotatably installed together with parent, attached body, rotation stop pad.
A kind of fastening structure for being fastenedly connected component including any one of scheme three to six, in addition to it is parent, attached Body；Described parent is integral type structure with attached body, forms the annular solid with fracture；At the two ends of the fracture of described annular solid It is provided with relative the first installation portion and the second installation portion in the same direction respectively；It is equipped with the first installation portion, the second installation portion and institute The through hole that the external thread part for the screw rod stated coordinates；The external thread part of screw rod passes through through hole, the second installation portion on the first installation portion On through hole be threadedly coupled with locking nut, the first installation portion and the second installation portion are installed together by screw rod, locking nut, spiral shell Bar is non-rotatably installed together with the first installation portion；Side on first installation portion away from the second installation portion is provided with and rotation stop Cover the first installation portion rotation stop hole that rotation stop boss gap coordinates；Rotation stop set is arranged on outside locking nut, and rotation stop set rotation stop boss is inserted Enter in the first installation portion rotation stop hole, and rotation stop set by axial limiting outside locking nut；Nut rotation prevention portion and rotation stop in rotation stop set Portion's fiting constraint locking nut covers relative to rotation stop and rotated, and rotation stop set rotation stop boss is unscrewing the side quilt in direction towards locking nut Constraint rotation stop set is kept out relative to the rotation of the first installation portion in the first installation portion rotation stop hole；Screw rod, locking nut are non-rotatably with Two installation portions, the first installation portion are installed together.
A kind of crankshaft connecting rod system, including bent axle, connection rod set, it is fastenedly connected component；It is big that connection rod set includes gonnecting rod body, connecting rod Skull, big end bearing shell；Being fastenedly connected component includes screw rod, locking nut；Screw rod includes external thread part, rotation stop blocking part, Rotation stop blocking part radially protruding external thread part；Gonnecting rod body includes big end and small end of connecting rod, and big end, big end are covered It is equipped with the through hole with the external thread part cooperation of screw rod；Being fastenedly connected component also includes rotation stop set, locating part；Outside locking nut Week is provided with circumferential evenly distributed, axial nut rotation prevention portion；The rotation stop through hole of an axial direction is provided only with rotation stop set, rotation stop is led to The hole wall in hole is provided with rotation prevention portion in the rotation stop set coordinated with nut rotation prevention portion；Axially it is convexly equipped with the end face that rotation stop covers Constraint rotation stop set unscrews the rotation stop that direction rotates towards locking nut and covers rotation stop boss, and rotation stop set rotation stop boss keeps out position in week Direction is unscrewed to direction, towards locking nut；It is provided with only convex with rotation stop set away from the side of connecting rod cap in big end The major part rotation stop hole that portion coordinates；Big end bearing shell is filled the span of a man's arms outside bent axle, and big end and connecting rod cap are filled the span of a man's arms big in connecting rod Outside head bearing shell；The external thread part of screw rod sequentially passes through the through hole of big end, the through hole that big end is covered and locking nut spiral shell Line is connected, and screw rod is non-rotatably installed together with big end, and screw rod, locking nut are by big end and connecting rod cap It is installed together；Rotation stop set is arranged on outside locking nut, and in rotation stop set rotation stop boss insertion major part rotation stop hole, locating part is arranged on The side axial limiting that rotation stop convex portion is covered away from rotation stop is covered on screw rod or to rotation stop on locking nut；Nut rotation prevention portion and rotation stop set Interior rotation prevention portion fiting constraint rotation stop set unscrews direction quilt relative to the rotation of locking screw parent phase, rotation stop set rotation stop boss in locking nut Major part rotation stop hole is kept out the relative big end of constraint rotation stop set and rotated, connecting rod cap and big end without rotating against, screw rod, Locking nut is non-rotatably installed together with connecting rod cap and big end.
The beneficial effects of the invention are as follows：
Should prevent screw thread pair towards unscrew direction rotate it is locking, again keep mechanical whorl connection easily and fast, reliably Ground detachability, is the technical barrier that people endeavour to solve not solve thoroughly but always for a long time.
The present invention is arranged on outside locking nut by rotation stop set, rotation stop covers the attached body rotation stop hole of rotation stop boss insertion or pad stops In turn hole, rotation stop set rotation stop boss is kept out in the side that direction is unscrewed towards locking nut by attached body rotation stop hole or pad rotation stop hole Rotation stop set is constrained relative to the rotation of attached body；Nut rotation prevention portion rotation stop set relative with rotation prevention portion fiting constraint locking nut in rotation stop set revolves Turn；So screw rod, locking nut are non-rotatably installed together with parent, attached body.Screw rod, locking nut can not be rotated, spiral shell The threaded connection of bar and locking nut would not be released because locking nut court is unscrewed direction rotates, and protect screw rod and locking nut Hold in the locked position being initially required, the coupling mechanism force of the threaded connection of screw rod and locking nut is in use substantially without change Change；Even if parent and attached body are fastenedly connected using common screw rod and locking nut, in adverse circumstances such as strenuous vibration, high temperature Under, the coupling mechanism force of the threaded connection of screw rod and locking nut is substantially unchanged in use；Therefore best locking is reached Effect, can be prevented effectively from threaded connection failure.
The height of rotation stop set rotation stop boss is more than the axial length that rotation stop covers interior rotation prevention portion, when the rotation stop of fastening structure When set is arranged on outside locking nut, before rotation prevention portion is not contacted with the nut rotation prevention portion of locking nut in the rotation stop set that rotation stop covers, Rotation stop set rotation stop boss is kept out position and can contacted with attached body rotation stop hole or pad rotation stop hole unscrewing direction towards locking nut, So that rotation stop the keeping out for rotation stop boss of set for inserting attached body rotation stop hole or pad rotation stop hole is located proximate to attached body rotation stop hole or pad Piece rotation stop hole, or contacted with attached body rotation stop hole or pad rotation stop hole.
Locking nut will be released, it is necessary to be rotated towards unscrewing direction, due to rotation stop cover rotation stop boss keep out be located proximate to it is attached Body rotation stop hole or pad rotation stop hole, or contacted with attached body rotation stop hole, locking nut one rotates towards direction is unscrewed, and rotation stop set rotation stop is convex Platform is kept out in the side that direction is unscrewed towards locking nut by attached body rotation stop hole, even if therefore rotation stop set rotation stop boss and attached body Rotation stop interporal lacuna coordinates, rotation stop set can not also be rotated towards direction is unscrewed or towards unscrew direction be only capable of rotation little by little, rotation stop set stops Turn boss to be kept out by attached body rotation stop hole, rotation stop set can not rotation condition locking nut can not invert, locking can be prevented effectively from Nut is towards direction rotational release is unscrewed, and rotation stop effect is good.
Nut rotation prevention portion is circumferentially evenly arranged in the outer of locking nut, such nut rotation prevention portion and matched rotation stop set Interior rotation prevention portion can be to be at least more than 6, and the number of rotation prevention portion is the integral multiple of nut rotation prevention portion in rotation stop set, rotation stop set with The structure that locking nut coordinates can be gear shape, spline shape or regular polygon etc., so that ensure that the pretightning force of threaded connection expires Sufficient use requirement, locking effect is good.If rotation stop keeping out for rotation stop boss of set is located proximate to attached body rotation stop hole or pad rotation stop hole, Then rotation stop effect is without so good.
A rotation stop through hole is provided only with rotation stop set, the applied widely of component is fastenedly connected, not by parent and attached body The upper pitch-row limitation for being used for installing the hole of screw rod.This fastening structure, more compact structure more meets general standard component tight The installation of firmware and use habit, can be designed to standard component.
Rotation stop boss is covered provided with rotation stop on rotation stop set, attached body rotation stop through hole is provided with attached body, rotation stop is covered by rotation stop Boss coordinates with attached body rotation stop hole covers relatively attached body to constrain rotation stop, only need to process or be molded on attached body and be convex with rotation stop set rotation stop The attached body rotation stop hole that platform coordinates, attached body rotation stop hole is generally circular hole, and processing cost is low.
With rotation stop pad rotation stop, embedded division, the embedded division of rotation stop pad are provided with away from the side that rotation stop covers in rotation stop pad Embedded attached internal constraint rotation stop pad rotates relative to attached body, it is not necessary to which processing covers what rotation stop boss coordinated with rotation stop on attached body Any constraint rotation stop is not needed to cover the spline structure of rotation on hole, attached body, rotation stop pad can make standard component, thus substantially reduce Cost.When dismounting is fastenedly connected component, rotation stop pad is not required to separate with attached body, it can thus be ensured that the embedded division insertion of rotation stop pad Attached internal constraint rotation stop pad rotates relative to attached body.
With rotation stop pad rotation stop, pad rotation stop boss is provided with away from the side that rotation stop covers in rotation stop pad, pad rotation stop is convex Platform inserts constraint rotation stop pad in attached body rotation stop hole and rotated relative to attached body, and rotation stop set rotation stop boss coordinates to come about with pad rotation stop hole The attached body rotation stop hole coordinated with pad rotation stop boss only need to be processed or be molded to beam rotation stop set on attached body relative to the rotation of attached body, attached Body rotation stop hole is generally circular hole, and processing cost is low.
With rotation stop pad rotation stop, rotation stop pad is adhesive in constraint rotation stop pad on attached body by fixation and rotated relative to attached body, It need not be processed on attached body and not need any constraint rotation stop to cover stopping for rotation on the hole coordinated with rotation stop set rotation stop boss, attached body Rotation structure, rotation stop pad can make standard component, thus substantially reduce cost, also unrestricted to the material of attached body, only need attached body surface Face is smooth, and cost is especially low, will not also destroy attached body surface face.When dismounting is fastenedly connected component, rotation stop pad be not required to it is attached Body is separated.
Rotation stop set rotation stop boss rotates with attached body rotation stop hole or pad rotation stop hole fiting constraint rotation stop pad relative to attached body, is not required to Will be in rotation stop set periphery provided with the outer rotation prevention portion of rotation stop set, it is not necessary to which the rotation stop for covering periphery with rotation stop covers the rotation stop that outer rotation prevention portion coordinates Hole rotates to constrain rotation stop set relative to attached body；It need not thus be processed on attached body and cover the rotation stop hole coordinated with rotation stop, be also not required to Want one be non-rotatably mounted at attached body together with, the rotation stop part provided with the rotation stop hole that the cooperation of outer rotation prevention portion is covered with rotation stop, More than two rotation stop through holes need not be designed on rotation stop set to constrain rotation stop set rotation.The relative processing on attached body be provided with Rotation stop covers the rotation stop hole that outer rotation prevention portion coordinates, and processing cost is substantially reduced.It is relative with attached body non-rotatably rotation stop part come about Beam rotation stop set relative to attached body rotation, save rotation stop part, eliminate erecting bed install rotation stop part, save the set-up time into This, greatly reduces cost.
Rotation stop covers and generally gap cooperation, the installation and taking-up for being easy to rotation stop to cover between locking nut.Due to rotation stop set It is not installed in rotation stop hole, completely exposed, it is easy for installation, quick that rotation stop covers；Even if the dismounting of rotation stop set is not by dismounting Instrument also can be dismantled easily, convenient disassembly, quick, reliable.
Rotation stop is put provided with elastic arm, and limiting section is provided with the end of elastic arm, it is no longer necessary to which locating part covers to rotation stop to be limited Position.Elastic arm is provided with locating part, limiting section is provided with the end of elastic arm；Just locating part and rotation stop set are installed in factory Together, and standard component can be made, in factory, due to automated job can be achieved, therefore installation effectiveness is high.Using provided with elasticity The rotation stop of arm covers and is fastenedly connected component including the locating part provided with elastic arm, in the erecting bed of screw rod and locking nut, No longer need that locating part, therefore quick for installation, efficiency high are installed.
Parent is integral type structure with attached body, forms the annular solid with fracture, and the fastening structure of this mechanism is used for When connecting other parts, because screw rod and locking nut will not rotate relative to the first installation portion and the second installation portion, even in tight It is solidly connected structure and bears the environment of greatly power or fastening structure in strenuous vibration etc., also will not be because of locking nut Threaded connection is caused to be failed towards unscrewing direction and rotating, it is ensured that screw rod and locking nut reliably install the second installation portion, first Portion is installed together.
Using the crankshaft connecting rod system for being fastenedly connected component of the present invention, by being fastenedly connected the company that component is fixed together The body of rod and connecting rod cap, because locking nut will not rotate relative to gonnecting rod body, the big skull of screw rod, even if therefore gonnecting rod body hold Environment of strenuous vibration etc. is in by greatly power or crankshaft connecting rod system, also direction rotation will not be unscrewed because of locking nut court Transduction causes threaded connection failure, so ensures that gonnecting rod body and connecting rod cap are reliably mounted on together, prevents accident.
Rotation stop hole is provided with rotation stop set, the rotation stop boss that the rotation stop hole covered with rotation stop coordinates is provided with attached body, is this One simple substitute equivalents of invention, fall within protection scope of the present invention certainly.Rotation stop boss is arranged on attached body, removed Non- is moulding, cast member etc., and rotation stop boss is just molded together when being molded attached body, if processing rotation stop boss, cost is especially high, Therefore no longer describe in this patent.
Brief description of the drawings
Fig. 1 is the perspective exploded view of the fastening structure of embodiment 1.
Fig. 2 crosses the schematic cross-sectional view of the shaft core position cutting of screw rod for the fastening structure of embodiment 2.
Fig. 3 crosses the schematic cross-sectional view of the shaft core position cutting of screw rod for the fastening structure of embodiment 2.
Fig. 4 is the perspective exploded view of the fastening structure of embodiment 2.
Fig. 5 is the perspective exploded view of the fastening structure of embodiment 3.
Fig. 6 is the schematic perspective view of the fastening structure of embodiment 3.
Fig. 7 crosses the schematic cross-sectional view of the shaft core position cutting of screw rod for the fastening structure of embodiment 3.
Fig. 8 crosses the schematic cross-sectional view of the shaft core position cutting of screw rod for the fastening structure of embodiment 4.
Fig. 9 is the perspective exploded view for being fastenedly connected component of embodiment 4.
Figure 10 is the perspective exploded view for being fastenedly connected component of embodiment 5.
The perspective exploded view that Figure 11 covers for the locating part of embodiment 5 with rotation stop.
Figure 12 crosses the schematic cross-sectional view of the shaft core position cutting of screw rod for the fastening structure of embodiment 5.
Figure 13 is the perspective exploded view of the fastening structure of embodiment 6.
The perspective exploded view that Figure 14 covers for the locking nut of embodiment 6 with rotation stop.
Figure 15 crosses the schematic cross-sectional view of the shaft core position cutting of screw rod for the fastening structure of embodiment 6.
The perspective exploded view that Figure 16 covers for the locking nut of embodiment 7 with rotation stop.
Figure 17 is the perspective exploded view of the fastening structure of embodiment 8.
Figure 18 crosses the schematic cross-sectional view of the shaft core position cutting of screw rod for the fastening structure of embodiment 8.
Figure 19 is the perspective exploded view of the fastening structure of embodiment 9.
Figure 20 crosses the schematic cross-sectional view of the shaft core position cutting of screw rod for the fastening structure of embodiment 9.
Figure 21 is the schematic perspective view of the fastening structure of embodiment 10.
Figure 22 is the perspective exploded view of the fastening structure of embodiment 10.
Figure 23 crosses the schematic cross-sectional view of screw rod shaft core position cutting for the fastening structure of embodiment 10.
Figure 24 is the schematic perspective view of the fastening structure of embodiment 11.
Figure 25 is the perspective exploded view for being fastenedly connected component of embodiment 11.
Figure 26 crosses the schematic cross-sectional view of screw rod shaft core position cutting for the fastening structure of embodiment 12.
Figure 27 is the perspective exploded view of the fastening structure of embodiment 12.
Figure 28 crosses the schematic cross-sectional view of screw rod shaft core position cutting for the fastening structure of embodiment 13.
Figure 29 is the perspective exploded view of the fastening structure of embodiment 13.
Figure 30 is the perspective exploded view of the fastening structure of embodiment 14.
Figure 31 crosses the schematic cross-sectional view of the shaft core position cutting of screw rod for the fastening structure of embodiment 14.
Figure 32 is the perspective exploded view of the fastening structure of embodiment 15.
Figure 33 crosses the schematic cross-sectional view of the shaft core position cutting of screw rod for the fastening structure of embodiment 15.
Figure 34 crosses the schematic cross-sectional view of the shaft core position cutting of screw rod for the fastening structure of embodiment 16.
The perspective exploded view that Figure 35 covers for the locking nut and rotation stop of embodiment 16.
Figure 36 is the perspective exploded view of the fastening structure of embodiment 16.
Figure 37 crosses the schematic cross-sectional view of the shaft core position cutting of screw rod for the fastening structure of embodiment 17.
Figure 38 is the screw rod of embodiment 17 and the perspective exploded view of screw rod rotation stop pad.
Figure 39 is the perspective exploded view for being fastenedly connected component of embodiment 18.
Figure 40 crosses the schematic cross-sectional view of the shaft core position cutting of screw rod for the fastening structure of embodiment 18.
Figure 41 is the perspective exploded view for being fastenedly connected component of embodiment 19.
Figure 42 crosses the schematic cross-sectional view of the shaft core position cutting of screw rod for the fastening structure of embodiment 19.
Figure 43 keeps out the perspective exploded view of nut for locking nut, the rotation stop fit of embodiment 20.
Figure 44 crosses the section view signal of the shaft core position cutting of the threaded connector of U-shaped for the fastening structure of embodiment 20 Figure.
Figure 45 is the perspective exploded view for being fastenedly connected component of embodiment 21.
Figure 46 crosses the schematic cross-sectional view of the shaft core position cutting of screw rod for the fastening structure of embodiment 21.
Figure 47 is the close-up schematic view of Figure 46 a-quadrant.
Figure 48 covers the schematic perspective view with elastic spacing one for the rotation stop of embodiment 22.
Figure 49 crosses the schematic cross-sectional view of the shaft core position cutting of screw rod for the fastening structure of embodiment 22.
Figure 50 is the close-up schematic view of Figure 49 a-quadrant.
Figure 51 is the schematic perspective view of the locating part of embodiment 23.
Figure 52 is the schematic perspective view of the locating part of embodiment 24.
Figure 53 illustrates for the stereo decomposing of the crankshaft connecting rod system of embodiment 25.
Figure 54 crosses the cut-away illustration of the axis cutting of two screw rods for the crankshaft connecting rod system of embodiment 25.
Embodiment
Embodiment 1
As shown in Figure 1 and Figure 2, one kind is fastenedly connected component, including screw rod 1, locking nut 2, rotation stop set 3, locating part, limit Position part is to keep out nut 4.
Locking nut 2 is stairstepping, includes the clamping part 5 and the rotation prevention portion 6 of external tooth wheel shape of regular hexagon, the footpath of rotation prevention portion 6 To protrusion clamping part 5.Provided with clamping part 5, when mounting and dismounting locking nut 2, it is easy to spanner to clamp locking nut 2.Only The periphery of transfer part 6 is provided with multiple lance tooths uniformly circumferentially arranged, lance tooth one nut rotation prevention portion 7 of formation, axle Heart position is provided with tapped through hole 8.
Screw rod 1 includes external thread part 9, the polished rod portion 10 and positive six of cylinder coordinated with the tapped through hole 8 of locking nut 2 Angular head 11, the end face axial in head 11 towards polished rod portion 10 protrudes a rotation stop boss 12.
It is annular shape that rotation stop, which covers 3, and the shaft core position of rotation stop set 3 is provided with and the gap of rotation prevention portion 6 cooperation of external gear shape The rotation stop through hole 13 of the internal gear shape of axial direction, the hole wall of rotation stop through hole 13 is provided with multiple triangles being uniformly circumferentially distributed Rotation prevention portion in the rotation stop set that single vee gutter formation one on groove, the hole wall of rotation stop through hole 13 coordinates with nut rotation prevention portion 7 23.The rotation stop boss 14 of an axially projecting column on 3 end face is covered in rotation stop, rotation stop boss 14 keeps out position in week Direction is unscrewed to direction, towards screw rod.
Nut 4 is kept out for stairstepping, the shaft core position for keeping out nut 4 is provided with the screw thread coordinated with the external thread part 9 of screw rod 1 Through hole 21, connected with tapped through hole 21, for empty avoiding locking nut 2 clamping part 5 emptiness avoiding hole 15.
Fastening structure includes being fastenedly connected component, parent 16, attached body 17.
Attached body 17 is provided with the through hole 18 coordinated with the external thread part 9 of screw rod 1, is set in attached body 17 away from the side of parent 16 There is the rotation stop circular hole 22 with the gap of rotation stop boss 14 cooperation of locking nut 2.
Parent 16 is provided with the through hole 19 coordinated with the polished rod portion 10 of screw rod 1, is set in parent 16 away from the side of attached body 17 There is the circle rotation stop hole 20 with the gap of rotation stop boss 12 cooperation of screw rod 1.
The external thread part 9 of screw rod 1 sequentially passes through stopping for the through hole 20 on parent 16, the through hole 18 on attached body 17 and screw rod 1 In the circle rotation stop hole 20 for turning the insertion parent 16 of boss 12, screw rod 1 is threadedly coupled with locking nut 2, and the head 11 of screw rod 1 is axially supported Parent 16 is kept off, locking nut 2 axially keeps out attached body 17, and parent 16 and attached body 17 are fastenedly connected one by screw rod 1 and locking nut 2 Rise.Constraint screw rod 1 rotates relative to parent 16 in the circle rotation stop hole 20 of the insertion parent 16 of rotation stop boss 12 of screw rod 1.
Rotation stop set 3 is arranged on outside the rotation prevention portion 6 of locking nut 2, and keeping out for rotation stop boss 14 is located proximate to stopping for attached body 17 Turn circular hole 22 or contacted with rotation stop circular hole 22, the nut rotation prevention portion 7 of lance tooth is inserted in the rotation stop set of corresponding vee gutter In rotation prevention portion 23, and the rotation stop boss 14 of rotation stop set 3 is inserted in the rotation stop circular hole 22 of attached body 17, keeps out nut 4 installed in screw rod 1 External thread part 9 on, the clamping part 5 of screw rod 1 is placed in the emptiness avoiding hole 15 for keeping out nut 4, keeps out nut 4 and rotation stop set 3 is deviated from The side axial limiting of attached body 17.Rotation stop boss 14 is justified in the side that direction is unscrewed towards locking nut 2 by the rotation stop of attached body 17 Hole 22 is kept out, rotation stop set 3 is arranged on the outer common constraint rotation stop set 3 of locking nut 2 and rotated relative to attached body 17, nut rotation prevention portion 7 with Rotation prevention portion 23 fiting constraint rotation stop set 3 rotates relative to locking nut 2 in rotation stop set, parent 16 and attached body 17 without rotating against, because This screw rod 1, locking nut 2 are non-rotatably installed together with parent 16 and attached body 17.
Embodiment 2
As shown in Figure 3, Figure 4, as different from Example 1, locating part is snap ring 31.
Snap ring includes the snap ring body of the non-closed of ring-type, is radially-inwardly convexly equipped with three in the medial surface of snap ring body and supports Convex portion is kept off, three medial surface distributions for keeping out convex portion are on the coaxial same periphery of snap ring body.
Screw rod 32 includes the head 33 being arranged in order, the polished rod portion 34 of cylinder, external thread part 35, cylindrical installation portion 36, provided with circumferential neck 37 on installation portion 36.
The radially protruding rotation prevention portion 40 of clamping part 39 of locking nut 38.
It is additionally provided with rotation stop set 41 coaxial and connect, for the clamping part 39 of empty avoiding locking nut 38 with rotation stop through hole 42 Emptiness avoiding hole 43, the aperture of emptiness avoiding hole 43 is more than the aperture of rotation stop through hole 42.
As different from Example 1, the convex portion of keeping out of snap ring 31 is stuck in screw rod 32 to fastening structure by elastic deformation The 41 side axial limitings for deviating from attached body 44 are covered in the neck 37 of installation portion 36 to rotation stop, the clamping part 39 of locking nut 38 is placed in In the emptiness avoiding hole 43 of rotation stop set 41.
Embodiment 3
As shown in Figures 5 to 7, as different from Example 1, locating part is snap ring 51.
Locking nut 52 is outer-hexagonal nut, six spiral shells that six planar shapeds of the periphery of locking nut 52 are circumferentially arranged Female rotation prevention portion 53, shaft core position is provided with tapped through hole 54, and the periphery of locking nut 52 is provided with the circumferential neck coordinated with snap ring 51 55。
The shaft core position of rotation stop set 56 is provided with the axial rotation stop through hole 57 coordinated with locking nut 52, and 56 are covered in rotation stop An axially projecting rotation stop boss 58 on one end face.The hole wall of rotation stop through hole 57 is two structure identical regular hexagon hole rotations Turn 30 ° of intersection, 12 wedge angle connected in stars are formed on the hole wall of rotation stop through hole 57, each wedge angle connected in star is by positive six The intersecting planar shaped of the two of angular hole is into two intersecting planar shapeds of wedge angle connected in star are matched somebody with somebody into the nut rotation prevention portion 53 with locking nut 52 Rotation prevention portion 59 in the rotation stop set of conjunction.
Snap ring 51 includes the circular body of snap ring 51 of non-closed, and the periphery of snap ring body 63 is uniformly distributed six radial directions The spacing raised line 61 of protrusion, dismounting through hole 60 is equipped with the end at the body two ends of neck 55.The spacing radially protruding of raised line 61 The periphery of neck 55 on locking nut 52, the maximum outside diameter of spacing raised line 61 is more than the maximum diameter of hole of rotation stop through hole 57；Snap ring The inner circumferential of body 63 and the periphery of the bottom of neck 55 of locking nut 52 coordinate.
Rotation stop set 56 is arranged on outside locking nut 52, and snap ring body 63 is arranged in the neck 55 of locking nut 52, snap ring 51 spacing raised line 61 keeps out end face of the rotation stop set 56 away from the side of attached body 62 and 56 side axles for deviating from attached body 62 is covered to rotation stop To spacing.
When dismantling locking nut 52, it is extend into special clamp type tool in two dismounting through holes 60, then be flared out Snap ring 51, snap ring 51 can take off from the neck 55 of locking nut 52.
Embodiment 4
As shown in Figure 8, Figure 9, as different from Example 1, one kind is fastenedly connected component, including screw rod 71, locking nut 72nd, rotation stop set 73, is not required to locating part.
The radially protruding rotation prevention portion 75 of clamping part 74 of locking nut 72.Rotation stop set 73 includes the rotation stop set body 86 of ring-type, The shaft core position for covering body 86 in rotation stop is provided with central through hole 76, and three elastic arms are uniformly distributed on the hole wall of central through hole 76 77.Horizontal projections 78 that each elastic arm 77 includes being formed radially inward from the hole wall of central through hole 76, axially upwards again radially The U-shaped elastic arm 79 that inwardly axle is formed down again；Limiting section 80 is formed radially inward in the end of U-shaped elastic arm 79, at three The medial surface of limiting section 80 is provided with and the internal gear shape of the part of rotation prevention portion 75 cooperation of the external gear shape of locking nut 72 Single vee gutter on multiple vee gutters uniformly circumferentially arranged, the medial surface of limiting section 80 is into one and nut rotation prevention portion The cell wall of vee gutter on rotation prevention portion 82 in the 81 rotation stop sets coordinated, the medial surface of three limiting sections 80 encloses to form non-closed Rotation stop through hole 83.The axially projecting rotation stop boss 84 on the end face of U-shaped elastic arm 79 of rotation stop set 73.Rotation prevention portion 75 Periphery forms the limiting section accommodation space of accommodating limiting section 80 with clamping part 74 towards the end face towards rotation prevention portion 75.
As different from Example 1, the rotation prevention portion 75 of locking nut 72 is towards attached body 85 for fastening structure.Rotation stop set 73 The rotation prevention portion 75 that locking nut 72 is placed in by elastic deformation of U-shaped elastic arm 79 it is outer and rotation stop boss 84 of rotation stop set 73 is inserted In the rotation stop circular hole of attached body 85, rotation stop set 73 limiting section 80 be locked nut 72 clamping part 74 towards rotation prevention portion 75 end face Keep out and the 73 side axial limitings for deviating from attached body 85 are covered to rotation stop.
Embodiment 5
As shown in Figure 10 to 12, as different from Example 4, locking nut 101 includes clamping part 102, rotation prevention portion successively 103rd, cylindrical blocking part 104, the radially protruding clamping part 102 of rotation prevention portion 103 and the blocking part 104 of empty avoiding.
Locating part is plastic parts, including circular locating part body 105, the peripheral shape of locating part body 105 and rotation stop Cover 106 peripheral shapes similar with merging, circular diameter is outer slightly larger than the rotation prevention portion 103 of locking nut 101 in locating part body 105 Footpath.On the central through hole 113 of locating part body 105 provided with three with groove 114, along each groove 114 bottom surface radially to Axis direction axial homonymy protrusion locating part body three elastic arms 107 of formation again, along the end of each elastic arm 107 radially to The axis direction formation limiting section 108 parallel with locating part body 105, the hole of the radially protruding central through hole 113 of limiting section 108 Wall.Six roots of sensation limited post 109 is protruded above in the same end face of locating part body 105, is provided with the end of limited post 109 and keeps out ring 110.Limited post 109 is placed in the same side of locating part body 105 with limiting section 108.The periphery of blocking part 104 and rotation prevention portion 103 The limiting section accommodation space of accommodating limiting section 108 is formed towards the end face of blocking part 104.
Rotation stop set 106 is metalwork, and the circumferentially uniform three empty avoiding locating parts of hole wall of 106 rotation stop through hole are covered in rotation stop The avoiding hollow groove 111 of elastic arm 107, covers on 106 provided with six circumferentially distributed limited posts axial, with locating part in rotation stop 109 mounting holes 112 coordinated, the periphery for covering 106 in rotation stop is provided with three avoiding hollow grooves 111 for being used for taking out locating part.Locating part Three limiting sections 108 minimum diameter be less than rotation stop through hole minimum diameter.
Rotation stop set 106 after machining is put into the injection mold of shaping locating part, injection molding locating part, so The limited post 109 of locating part consolidates locating part through the mounting hole 112 of rotation stop set 106, by the ring 110 of keeping out of limited post 109 It is scheduled on rotation stop set 106, elastic arm 107 is placed in the avoiding hollow groove 111 of rotation stop set 106, and the radially protruding rotation stop of limiting section 108 is led to Hole.
Rotation stop set 106 is together arranged on outside locking nut 101 with locating part, and rotation stop set body 115 is arranged on locking nut Outside 101 rotation prevention portion 103, the limiting section 108 of locating part is by the elastic deformation of elastic arm 107 by rotation prevention portion 103 towards blocking part 104 end face, which is kept out, covers the 106 side axial limitings for deviating from attached body 114 to rotation stop.
Embodiment 6
As shown in FIG. 13 to 15, as different from Example 5, the periphery of the rotation prevention portion 122 of locking nut 121 is provided with more The individual stepped tooth uniformly circumferentially arranged, one trapezoidal toothed into a nut rotation prevention portion 123.
Rotation stop set 124 includes the rotation stop set body 125 of ring-type, and the shaft core position for covering body 125 in rotation stop is logical provided with center Hole 126, covers the periphery of body 125 along rotation stop and inner circumferential is extended in the same direction provided with mutually level outer bulge loop 127 and internal projecting ring 128, Three limiting sections 129 are radially convexly equipped with along the top surface of internal projecting ring 128 on internal projecting ring 128, along the week of each limiting section 129 To both sides, centered on the axle center of central through hole 126, provided with internal projecting ring 128 is cut, simultaneously partial cut rotation stop covers putting for body 125 to point The straight line grooving 130 of shape is penetrated, internal projecting ring 128 and rotation stop the set formation elastic arm 131 of body 125 being connected with limiting section 129.Inside The medial surface that limiting section 129 is not provided with bulge loop 128 is matched somebody with somebody provided with the rotation prevention portion 122 with the external gear shape of locking nut 121 Multiple dovetail grooves uniformly circumferentially arranged of the internal gear shape of conjunction, single dovetail groove formation one is matched somebody with somebody with nut rotation prevention portion 123 The cell wall of dovetail groove on rotation prevention portion 132 in the rotation stop set of conjunction, the medial surface of three limiting sections 129 encloses to form stopping for non-closed Turn through hole 133.Body 125 is covered towards axially projecting between the side of internal projecting ring 128, internal projecting ring 128 and outer bulge loop 127 in rotation stop One rotation stop boss 134.The periphery of blocking part 135 and rotation prevention portion 122 form accommodating spacing towards the end face towards blocking part 135 The limiting section accommodation space in portion 129.
Rotation prevention portion 132 is placed in outside the rotation prevention portion 122 of locking nut 121 in the rotation stop set of rotation stop set 124, rotation stop covers 124 The blocking part 135 that elastic arm 131 is placed in locking nut 121 by elastic deformation is outer and rotation stop boss 134 of rotation stop set 124 is inserted In the rotation stop circular hole 137 of attached body 136, the limiting section 129 of rotation stop set 124 be locked nut 121 rotation prevention portion 122 towards blocking part 135 end face, which is kept out, covers the 124 side axial limitings for deviating from attached body 136 to rotation stop.
Embodiment 7
As shown in figure 16, as different from Example 1, the periphery of rotation prevention portion 151 is spline shape, and periphery forms five protrusions Portion, one nut rotation prevention portion 152 of each protuberance formation.
The hole wall of rotation stop through hole 153 is the spline connected in star coordinated with the periphery of the spline-shaped of rotation prevention portion 151, and rotation stop is led to Rotation prevention portion 154 in the rotation stop set that single groove formation on the hole wall of hole 153 coordinates with nut rotation prevention portion 152.
Embodiment 8
As shown in Figure 17, Figure 18, as different from Example 1, locking nut 171 is the outer-hexagonal nut of standard.
The hole wall of rotation stop through hole 172 is the intersection that two structure identical regular hexagon holes rotate 30 °, logical in rotation stop On the hole wall in hole 172 formed 12 wedge angle connected in stars, each wedge angle connected in star by regular hexagon hole two intersect planar shapeds into, The intersecting planar shaped of the two of wedge angle connected in star covers interior rotation prevention portion 175 into the rotation stop with the cooperation of the nut rotation prevention portion 174 of rotation prevention portion 173.
The periphery for keeping out nut 176 is regular hexagon.The shaft core position of nut 176 is kept out provided with the outer spiral shell with screw rod 177 The tapped through hole 179 that line portion 178 coordinates, connects with tapped through hole 179, is kept away for the clamping part 180 of empty avoiding locking nut 171 Emptying aperture 181, the aperture of emptiness avoiding hole 181 is more than the aperture of screwed hole.
Fastening structure includes being fastenedly connected component, the parent of integral structure and attached body.Parent and attached body formation band The annular solid 182 of fracture；Described annular solid 182 fracture two ends respectively in the same direction provided with just pair and parallel first installs The installation portion 184 of portion 183 and second.The through hole 186 coordinated with the polished rod portion 185 of screw rod 177 is provided with the first installation portion 183, The circle coordinated with the gap of rotation stop boss 187 of screw rod 177 is provided with away from the side of the second installation portion 184 in the first installation portion 183 Rotation stop hole 188.The through hole 189 coordinated with the external thread part 178 of screw rod 177 is provided with the second described installation portion 184, the Two installation portions 184 away from the side of the first installation portion 183 be provided with the gap of rotation stop boss 190 of locking nut 171 coordinate only Turn circular hole 191.
The external thread part 178 of screw rod 177 sequentially passes through through hole 186 on the first installation portion 183, on the second installation portion 184 Through hole 189 and screw rod 177 rotation stop boss 187 insert the first installation portion 183 circle rotation stop hole 188 in, screw rod 177 with locking Nut 171 is threadedly coupled, and the first installation portion 183 is axially kept out on the head of screw rod 177, and locking nut 171 axially keeps out the second peace First installation portion 183 is fastened together by dress portion 184, screw rod 177 and locking nut 171 with the second installation portion 184.Screw rod 177 rotation stop boss 187, which is inserted, constrains screw rod 177 with respect to the first installation portion 183 in the circle rotation stop hole 188 of the first installation portion 183 Rotation.
Rotation stop set 192 is arranged on outside locking nut 171, and the nut rotation prevention portion 174 of lance tooth inserts corresponding triangle In the rotation stop set of groove in rotation prevention portion 175, and the rotation stop circular hole of the second installation portion 184 of insertion of rotation stop boss 190 of rotation stop set 192 In 191, nut 176 is kept out on the external thread part 178 of screw rod 177, locking nut 171, which is placed in, keeps out keeping away for nut 176 In emptying aperture 181, keep out nut 176 and the 192 side axial limitings for deviating from the second installation portion 184 are covered to rotation stop.Rotation stop set 192 only The fiting constraint rotation stop of rotation stop circular hole 191 set 192 for turning boss 190 and the second installation portion 184 rotates relative to the second installation portion 184, Nut rotation prevention portion 174 rotates with the fiting constraint rotation stop of rotation prevention portion 175 set 192 in rotation stop set relative to locking nut 171, the first peace The installation portion 184 of dress portion 183 and second is without rotating against, therefore screw rod 177, locking nut 171 are non-rotatably installed with first The installation portion 184 of portion 183 and second is installed together.
Embodiment 9
As shown in Figure 19, Figure 20, a kind of fastening structure, including it is fastenedly connected component, parent 201, attached body 202.
Be fastenedly connected component including screw rod 203, locking nut 204, rotation stop set 205, the expansion sleeve 206 of integral structure, Keep out nut 207.
Screw rod 203 includes the blocking part 208, polished rod portion 209, external thread part 210, the radial convex of blocking part 208 being sequentially distributed External threads portion 210, the driving conical surface 211 expanded on blocking part 208 provided with driving expansion sleeve 206.
Locking nut 204 is the outer-hexagonal nut of standard, and six planar shapeds of the periphery of locking nut 204 are circumferentially arranged Six nut rotation prevention portions 212, shaft core position be provided with tapped through hole 213.
Rotation stop set 205 is ring-type, and the shaft core position of rotation stop set 205 is provided with the axial rotation stop coordinated with locking nut 204 Through hole 214, an axially projecting rotation stop boss 215 on 205 end face is covered in rotation stop, and rotation stop boss 215 keeps out position Direction is unscrewed in circumferential direction, towards screw rod.The hole wall of rotation stop through hole 214 is two structure identical regular hexagon hole rotations 30 ° of intersection, forms 12 wedge angle connected in stars, each wedge angle connected in star is by positive six on the hole wall of rotation stop through hole 214 The intersecting planar shaped of the two of angular hole is into the two of wedge angle connected in star 11 intersects planar shapeds into the nut rotation prevention portion with locking nut 204 Rotation prevention portion 216 in the 212 rotation stop sets coordinated.
The periphery for keeping out nut 207 is regular hexagon.The shaft core position of nut 207 is kept out provided with the outer spiral shell with screw rod 203 The tapped through hole 219 that line portion 210 coordinates, connects with tapped through hole 219, is kept away for the clamping part 217 of empty avoiding locking nut 204 Emptying aperture 218, the aperture of emptiness avoiding hole 218 is more than the aperture of screwed hole.
Expansion sleeve 206 is circular tube shaped, and the fluting of distending when being expanded for expansion sleeve 206 is provided with the lower end of expansion sleeve 206 209。
Attached body 202 is provided with the through hole 210 coordinated with the periphery of expansion sleeve 206 and the blocking part of screw rod 203 208, in attached body 202 are provided with the rotation stop circular hole 211 coordinated with the gap of rotation stop boss 215 away from the side of parent 201.
Parent 201 is provided with the blind hole 212 coordinated with the periphery of expansion sleeve 206 and the blocking part of screw rod 203 208.
The external thread part 210 of screw rod 203 passes through expansion sleeve 206, and the blocking part 208 of screw rod 203, demi-inflation set 206 are pacified In the blind hole 212 of parent 201, the external thread part 210 of screw rod 203 passes through through hole 210 and locking nut on attached body 202 204 screwed hole threaded connection, one end fits of the hole wall provided with fluting 209 of the driving conical surface 211 and the through hole on expansion sleeve 206 Expansion sleeve 206 is fixed on the blind hole of parent 201 by distending expansion sleeve 206, the swelling frictional force between expansion sleeve 206 and parent 201 In 212, the inflated set 206 in blocking part 208 of screw rod 203 is axially kept out, and locking nut 204 axially keeps out attached body 202, screw rod 203rd, parent 201 and attached body 202 are fastened together by expansion sleeve 206 and locking nut 204.
Rotation stop set 205 is arranged on outside locking nut 204, and the keeping out of rotation stop boss 215 is located proximate to the rotation stop circle of attached body 202 Hole 211 is contacted with rotation stop circular hole 211, and the nut that the interior rotation prevention portion 216 of rotation stop set of rotation stop set 205 is placed in locking nut 204 stops Transfer part 212 is outer and rotation stop boss 215 of rotation stop set 205 is inserted in the rotation stop circular hole 211 of attached body 202, keeps out nut 207 and is arranged on On the external thread part 210 of screw rod 203, the locking nut 204 of protrusion rotation stop set 205 is placed in the emptiness avoiding hole 218 for keeping out nut 207 It is interior, keep out nut 207 and the 205 side axial limitings for deviating from attached body 202 are covered to rotation stop.Rotation prevention portion 216 stops with nut in rotation stop set The fiting constraint locking nut 204 of transfer part 212 is rotated relative to rotation stop set 205, and rotation stop boss 215 is unscrewed towards locking nut 204 The side in direction is kept out by the rotation stop circular hole 211 of attached body 202, rotation stop set 205 is arranged on the outer common constraint rotation stop of locking nut 204 Set 205 rotates relative to attached body 202.Locking nut 204 non-rotatably with screw rod 203, expansion sleeve 206, parent 201 and attached body 202 are installed together.
Embodiment 10
As shown in Figure 21 to 23, one kind is fastenedly connected component, including screw rod 231, locking nut 232, rotation stop set 233.
Locking nut 232 is stairstepping, includes the clamping part 234 and the rotation prevention portion 235 of external tooth wheel shape of regular hexagon, rotation stop The radially protruding clamping part 234 of portion 235.Provided with clamping part 234, when mounting and dismounting locking nut 232, it is easy to spanner clamping lock Tight nut 232.Multiple lance tooths uniformly circumferentially arranged, a lance tooth formation one are provided with the periphery of rotation prevention portion 235 Individual nut rotation prevention portion 236, shaft core position is provided with tapped through hole 238.
Screw rod 231 includes the head of the external thread part 239 and regular hexagon coordinated with the tapped through hole 238 of locking nut 232 A rotation stop boss 242 is protruded towards the end face axial of external thread part 239 in portion 241, head 241.
Rotation stop set 233 is annular shape, the shaft core position of rotation stop set 233 be provided with locking nut 232 coordinate it is axial only Turn through hole 243, an axially projecting rotation stop boss 244 on 233 end face is covered in rotation stop, rotation stop boss 244 keeps out position Put and unscrew direction in circumferential direction, towards screw rod.The hole wall of rotation stop through hole 243 be and the external gear shape of locking nut 232 The internal gear shape that rotation prevention portion 235 coordinates, the hole wall of rotation stop through hole 243 provided with multiple uniformly circumferentially vee gutters arranged side by side, Rotation prevention portion in the rotation stop set that single vee gutter formation one on the hole wall of rotation stop through hole 243 coordinates with nut rotation prevention portion 236 237, circumferentially uniform three semicircles of hole wall of rotation stop set 233 are used for housing the glue groove 246 of fixing glue 245.
Fastening structure includes being fastenedly connected component, parent 248, attached body 247.
Attached body 247 is provided with the through hole 251 coordinated with the external thread part 239 of screw rod 231, deviates from parent 248 in attached body 247 Side be provided with the gap of rotation stop boss 244 coordinate rotation stop circular hole 252.
Parent 248 is provided with the through hole 250 coordinated with the external thread part 239 of screw rod 231, deviates from attached body 247 in parent 248 Side be provided with the gap of rotation stop boss 242 coordinate circle rotation stop hole 249.
The external thread part 239 of screw rod 231 sequentially passes through the through hole 250 on parent 248, the through hole 251 on attached body 247 and spiral shell In the circle rotation stop hole 249 of the insertion parent 248 of rotation stop boss 242 of bar 231, screw rod 231 is threadedly coupled with locking nut 232, spiral shell Parent 248 is axially kept out on the head 241 of bar 231, and locking nut 232 axially keeps out attached body 247, screw rod 231 and locking nut 232 Parent 248 is fastened together with attached body 247.The rotation stop boss 242 of screw rod 231 inserts the circle rotation stop hole 249 of parent 248 Middle constraint screw rod 231 rotates relative to parent 248.
Rotation stop set 233 is arranged on outside locking nut 232, and the keeping out of rotation stop boss 244 is located proximate to the rotation stop circle of attached body 247 Hole 252 is contacted with rotation stop circular hole 252, and the nut that the interior rotation prevention portion 237 of rotation stop set of rotation stop set 233 is placed in locking nut 232 stops Transfer part 236 is outer and rotation stop boss 244 of rotation stop set 233 is inserted in the rotation stop circular hole 252 of attached body 247, in glue groove 246 and glue groove Fixing glue 245 is filled with 246 adjacent nut rotation prevention portions 236 and rotation stop set between the gap of rotation prevention portion 237, fixing glue 245 will It is outer to rotation stop 233 axial limitings of set that rotation stop set 233 is fixed on locking nut 232.Rotation stop boss 244 is towards locking nut 232 The side for unscrewing direction is kept out by the rotation stop circular hole 252 of attached body 247, rotation stop set 233 is arranged on the outer common constraint of locking nut 232 Rotation stop set 233 rotates relative to attached body 247, and nut rotation prevention portion 236 covers 233 phases with the fiting constraint rotation stop of rotation prevention portion 237 in rotation stop set Locking nut 232 is rotated, parent 248 and attached body 247 are without rotating against, therefore screw rod 231, locking nut 232 are non-rotatable Ground is installed together with parent 248 and attached body 247.
Embodiment 11
As shown in Figure 24, Figure 25, as different from Example 2, screw rod 300 includes head 301, the cylinder being arranged in order Polished rod portion 302, external thread part 303.
Locking nut 304 includes the installation portion 307 for the clamping part 305, rotation prevention portion 306 and cylinder being arranged in order, rotation stop The radially protruding installation portion 307 of portion 306, the radially protruding rotation prevention portion 306 of clamping part 305.It is provided with installation portion 307 and circumferential card Groove 308.
As different from Example 1, the convex portion 310 of keeping out of snap ring 309 is stuck in lock to fastening structure by elastic deformation The 311 side axial limitings for deviating from attached body 312 are covered in the neck 308 of the installation portion 307 of tight nut 304 to rotation stop.
Embodiment 12
As shown in Figure 26, Figure 27, as different from Example 3, being fastenedly connected component also includes screw rod rotation stop piece 330.
Rotation prevention portion 333, polished rod portion are kept out in limiting section 332 that screw rod 331 includes being arranged in order, periphery for external tooth wheel shape 334 and external thread part 335.The radially protruding of limiting section 332 keeps out rotation prevention portion 333, keeps out the radially protruding polished rod portion of rotation prevention portion 333 334.Multiple lance tooths uniformly circumferentially arranged, a lance tooth formation one are provided with the periphery for keeping out rotation prevention portion 333 Screw rod rotation prevention portion 336.
Screw rod rotation stop piece 330 is square with rounded corners, and the center of screw rod rotation stop piece 330 is provided with and screw rod 331 The pad rotation stop through hole 337 of the internal tooth wheel shape for keeping out the cooperation of rotation prevention portion 333 of external tooth wheel shape, the hole wall of pad rotation stop through hole 337 Multiple vee gutters being uniformly circumferentially distributed are provided with, in the relative both sides of screw rod rotation stop piece 330 from projection on the bottom surface of pad There are the built-in edges 344 (thinking that this mode is used bad) of pointed shape.Single triangle on the hole wall of pad rotation stop through hole 337 The pad rotation prevention portion 338 that shape groove formation one coordinates with screw rod rotation prevention portion 336.
The external thread part 335 of screw rod 331 sequentially passes through the pad rotation stop through hole 337 of screw rod rotation stop piece 330, on parent 339 Through hole 340, the through hole 342 on attached body 341 be threadedly coupled with locking nut 343, the rotation prevention portion 333 of keeping out of screw rod 331 is placed in In the pad rotation stop through hole 337 of screw rod rotation stop piece 330, the limiting section 332 of screw rod 331 is supported towards the end face for keeping out rotation prevention portion 333 Screw rod rotation stop piece 330 is kept off, the insertion parent 339 of built-in edges 344 of screw rod rotation stop piece 330 simultaneously produces static friction constraint screw rod rotation stop piece 330 rotate relative to parent 339, the constraint screw rod of pad rotation prevention portion 338 of the insertion vee gutter of screw rod rotation prevention portion 336 of lance tooth 331 are rotated relative to parent 339, and screw rod 331 is non-rotatably installed together with parent 339.
Embodiment 13
As shown in Figure 28, Figure 29, as different from Example 3, being fastenedly connected component also includes rotation stop pad 360.
The shaft core position of rotation stop pad 360 is provided with the circle central through hole 363 coordinated with the gap of external thread part 362 of screw rod 361, The pad circle rotation stop through hole 366 that the end face of rotation stop pad 360 coordinates provided with a gap of rotation stop boss 365 for covering 364 with rotation stop.Circle Axially projecting rotation stop pad boss 367 on the peripheral end face of central through hole 363.The maximum outside diameter of rotation stop pad 360 is more than rotation stop The maximum inner diameter of the rotation stop through hole 368 of set 364.
Attached body 369 is provided with the rotation stop coordinated with the gap of rotation stop pad boss 367 of rotation stop pad 360 away from the side of parent 370 Circular hole 371.
The external thread part 362 of screw rod 361 sequentially passes through the through hole 372 on parent 370, the through hole 373 on attached body 369, stopped Turn in the circle central through hole 363 of pad 360, and the circle rotation stop hole 375 of the insertion parent 370 of rotation stop boss 374 of screw rod 361, rotation stop The rotation stop pad boss 367 of pad 360 is inserted in the rotation stop circular hole 371 of attached body 369, and screw rod 361 is threadedly coupled with locking nut 376 Parent 370, attached body 369 and rotation stop pad 360 are installed together.The rotation stop pad boss 367 of rotation stop pad 360 stops with attached body 369 Turn the fiting constraint rotation stop pad 360 of circular hole 371 to rotate relative to attached body 369.
Rotation stop set 364 is arranged on outside locking nut 376, the pad of the insertion rotation stop of rotation stop boss 365 pad 360 of rotation stop set 364 In piece circle rotation stop through hole 366, the rotation stop boss 365 of rotation stop set 364 matches somebody with somebody contract with the pad circle rotation stop through hole 366 of rotation stop pad 360 Beam rotation stop set 364 rotates relative to rotation stop pad 360.
Embodiment 14
As shown in Figure 30, Figure 31, one kind is fastenedly connected component, including screw rod 461, rotation stop pad 462, locking nut 463, only Pivoted housing 464.
Screw rod 461 includes the head of the external thread part 466 and regular hexagon coordinated with the tapped through hole 465 of locking nut 463 A rotation stop boss 467 is protruded towards the end face axial of external thread part 466 in portion 484, head 484.
Locking nut 463 is stairstepping, includes the clamping part 468 and the rotation prevention portion 469 of external tooth wheel shape of regular hexagon, axle center Position is provided with the tapped through hole 465 coordinated with external thread part 466, the radially protruding clamping part 468 of rotation prevention portion 469.Provided with clamping part 468, when mounting and dismounting locking nut 463, it is easy to spanner to clamp locking nut 463.In the periphery of rotation prevention portion 469 provided with many The individual lance tooth uniformly circumferentially arranged, lance tooth one nut rotation prevention portion 470 of formation.
Rotation stop pad 462 is circular plate-like shape stamping parts, and shaft core position is provided with logical with the cooperation of external thread part 466 of screw rod 461 Hole 471, the maximum inner diameter of through hole 471 is less than the maximum outside diameter of locking nut 463, and the end face of rotation stop pad 462 is provided with one with stopping The pad rotation stop through hole 472 that the gap of rotation stop boss 475 of pivoted housing 464 coordinates, periphery of the rotation stop pad 462 along through hole 471 is to side Circumferential uniform multiple insertion teeth 473 being stamped and formed out, described insertion tooth 473 is wedge shape.
Rotation stop set 464 is annular shape, the shaft core position of rotation stop set 464 be provided with locking nut 463 coordinate it is axial only Turn through hole 474, an axially projecting rotation stop boss 475 on 464 end face is covered in rotation stop, rotation stop boss 475 keeps out position Put and unscrew direction in circumferential direction, towards screw rod.The hole wall of rotation stop through hole 474 be and the external gear shape of locking nut 463 The internal gear shape that rotation prevention portion 469 coordinates, the hole wall of rotation stop through hole 474 provided with multiple uniformly circumferentially vee gutters arranged side by side, Rotation prevention portion in the rotation stop set that single vee gutter formation one on the hole wall of rotation stop through hole 474 coordinates with nut rotation prevention portion 470 476, circumferentially uniform three semicircles of hole wall of rotation stop set 464 are used for housing the glue groove 478 of fixing glue 477.
Fastening structure includes being fastenedly connected component, parent 479, attached body 480.
Attached body 480 is provided with the through hole 481 coordinated with the external thread part 466 of screw rod 461, and the hardness of attached body 480 is less than only Turn the hardness of the insertion tooth 473 of pad 462.
Parent 479 is provided with the through hole 482 coordinated with the external thread part 466 of screw rod 461, deviates from attached body 480 in parent 479 Side be provided with the gap of rotation stop boss 467 coordinate circle rotation stop hole 483.
The external thread part 466 of screw rod 461 sequentially passes through the through hole 482 on parent 479, the through hole 481 on attached body 480, stopped The through hole 471 for turning pad 462 is threadedly coupled with locking nut 463, and the rotation stop boss 467 of screw rod 461 inserts the circle rotation stop of parent 479 In hole 483, screw rod 461 is non-rotatably mounted on parent 479, and locking nut 463 axially keeps out rotation stop pad 462, rotation stop pad 462 insertion tooth 473 is embedded in constraint rotation stop pad 462 in attached body 480 and rotated relative to attached body 480, screw rod 461 and locking nut 463 Parent 479, attached body 480 and rotation stop pad 462 are fastened together.
Rotation stop set 464 is arranged on outside locking nut 463, and keeping out for rotation stop boss 475 is located proximate to pad rotation stop through hole 472 Or contacted with pad rotation stop through hole 472, the nut rotation prevention portion 470 of lance tooth is inserted in the rotation stop set of corresponding vee gutter only It is adjacent with glue groove 478 in glue groove 478 in the insertion pad rotation stop of rotation stop boss 475 through hole 472 of rotation stop set 464 in transfer part 476 Nut rotation prevention portion 470 and rotation stop set in rotation prevention portion 476 gap between be filled with fixing glue 477, fixing glue 477 is by rotation stop set 464 are fixed on outside locking nut 463 to rotation stop 464 axial limitings of set.Rotation stop boss 475 is unscrewing direction towards rotation stop pad 462 Side kept out by pad rotation stop through hole 472, that rotation stop set 464 is arranged on the outer common constraint rotation stop set 464 of locking nut 463 is relative Rotation stop pad 462 rotates, nut rotation prevention portion 470 and the relative locking nut of the fiting constraint rotation stop of rotation prevention portion 476 set in rotation stop set 464 463 rotations, parent 479 and attached body 480 without rotating against, therefore screw rod 461, locking nut 463 non-rotatably with parent 479 It is installed together with attached body 480.
Embodiment 15
As shown in Figure 32, Figure 33, as different from Example 14, the radially protruding rotation stop of clamping part 502 of locking nut 501 Portion 503.
Rotation stop set 504 includes the rotation stop set body 505 of ring-type, and the shaft core position for covering body 505 in rotation stop is logical provided with center Hole 506, is uniformly distributed three elastic arms 507 on the hole wall of central through hole 506.Each elastic arm 507 is included from central through hole Horizontal projections 508 that 506 hole wall is formed radially inward, the U-shaped elastic arm that radially-inwardly axle is formed down again again axially upwards 509, from the end of U-shaped elastic arm 509 be formed radially inward limiting section 510, on the medial surface of three limiting sections 510 be provided with The multiple triangles uniformly circumferentially arranged for the internal gear shape that the part of rotation prevention portion 503 of the external gear shape of locking nut 501 coordinates Single vee gutter on shape groove, the medial surface of limiting section 510 covers interior rotation stop into one with the rotation stop that nut rotation prevention portion 511 coordinates The cell wall of vee gutter on portion 512, the medial surface of three limiting sections 510 encloses the rotation stop through hole 513 to form non-closed.Rotation stop The axially projecting rotation stop boss 514 on the end face of U-shaped elastic arm 509 of set 504.
As different from Example 1, the rotation prevention portion 503 of locking nut 501 is towards attached body 515 for fastening structure.Rotation stop The U-shaped elastic arm 509 of set 504 is placed in by elastic deformation outside the rotation prevention portion 503 of locking nut 501 and rotation stop covers 504 rotation stop In the pad rotation stop through hole 516 of the insertion of boss 514 rotation stop pad 515, the limiting section 510 of rotation stop set 504 is locked the folder of nut 501 Hold portion 502 and kept out towards the end face of attached body 515 and the 504 side axial limitings for deviating from attached body 515 are covered to rotation stop.
Embodiment 16
As shown in Figure 34 to Figure 36, as different from Example 15, two end faces of screw rod rotation stop pad 521 are smooth Face, is not provided with the friction particles for increasing friction or is embedded in projection etc..
Locking nut 522 is successively including the clamping part 523 of outer regular hexagon, rotation stop blocking part 524, location division 525；Rotation stop Blocking part 524 include the rotation prevention portion 526 that is connected with clamping part 523 and be connected with location division 525, the blocking part 527 of empty avoiding, support The radially protruding location division 525 of stopper 527, the radially protruding blocking part 527 of rotation prevention portion 526 and clamping part 523.Locking nut 522 The periphery of rotation prevention portion 526 is provided with multiple stepped tooths uniformly circumferentially arranged, and one trapezoidal toothed into a nut rotation prevention portion 528.
Rotation stop set 529 includes the rotation stop set body 530 of ring-type, and the shaft core position for covering body 530 in rotation stop is logical provided with center Hole 531, covers the periphery of body 530 along rotation stop and inner circumferential is extended in the same direction provided with mutually level outer bulge loop 532 and internal projecting ring 533, Three limiting sections 534 are radially convexly equipped with along the top surface of internal projecting ring 533 on internal projecting ring 533, along the week of each limiting section 534 To both sides, centered on the axle center of central through hole 531, provided with internal projecting ring 533 is cut, simultaneously partial cut rotation stop covers putting for body 530 to point The straight line grooving 535 of shape is penetrated, internal projecting ring 533 and rotation stop the set formation elastic arm 536 of body 530 being connected with limiting section 534.In limit The medial surface in position portion 534 is provided with and the internal gear shape of the part of rotation prevention portion 526 cooperation of the external gear shape of locking nut 522 Dovetail groove formation one and nut rotation stop on multiple axial dovetail grooves uniformly circumferentially arranged, the medial surface of limiting section 534 The cell wall of dovetail groove on rotation prevention portion 537 in the rotation stop set that portion 528 coordinates, the medial surface of internal projecting ring 533 encloses to form non-closed Rotation stop through hole 553.Body 530 is covered towards axial direction between the side of internal projecting ring 533, internal projecting ring 533 and outer bulge loop 532 in rotation stop Protrude a rotation stop boss 539.
The shaft core position of rotation stop pad 540 is provided with the circle central through hole 541 coordinated with the gap of location division 525 of locking nut 522, The pad circle rotation stop through hole 542 that the end face of rotation stop pad 540 coordinates provided with a gap of rotation stop boss 539 for covering 529 with rotation stop.Only Two end faces for turning pad 540 are smooth face, are not provided with friction particles or embedded projection etc. for increasing friction.
Fill glue on an end face of screw rod rotation stop pad 521, the external thread part 544 of screw rod 543 is from screw rod rotation stop pad 521 The end face for being not coated with glue stretches into the circle central through hole 545 of screw rod rotation stop pad 521, rotation stop boss 552 and stretches into screw rod rotation stop pad 521 In rotation stop screw rod round tube hole 546, screw rod rotation stop pad 521 is enclosed on screw rod 543；Filled on an end face of rotation stop pad 540 Glue, the external thread part 544 of screw rod 543 is then passed through the through hole 549 on parent 548, the through hole 551 on attached body 550, from rotation stop pad The 540 circle central through holes 541 for being not coated with end face through the rotation stop pad 540 of glue are threadedly coupled with locking nut 522, locking nut 522 and screw rod 543 screw rod rotation stop pad 521, parent 548 and attached body 550, rotation stop pad 540 are fastened together.Locking nut 522 with screw rod 543 lock during rotation stop pad 540 with the attached surface bonding of body 550 together with, with the attached surface of body 550 generation very Big bonding force constraint rotation stop pad 540 rotates relative to attached body 550, screw rod rotation stop pad 521 together with the surface bonding of parent 548, Very big bonding force constraint screw rod rotation stop pad 521 is produced with the surface of parent 548 to rotate relative to parent 548, rotation stop boss 552 is stretched into The constraint screw rod 543 of rotation stop screw rod round tube hole 546 of screw rod rotation stop pad 521 rotates relative to screw rod rotation stop pad 521, screw rod 543, screw rod Rotation stop pad 521, rotation stop pad 540 be not rotatable with respect to parent 548 and attached body 550.
Rotation stop set 529 is placed in outside the rotation prevention portion 526 of locking nut 522, the elastic arm 536 of rotation stop set 529 passes through elasticity and become Shape make the limiting section 534 of elastic arm 536 be placed in locking nut 522 blocking part 527 is outer and rotation stop boss 539 of rotation stop set 529 In the pad circle rotation stop through hole 542 for inserting rotation stop pad 540, the limiting section 534 of rotation stop set 529 is locked the rotation prevention portion of nut 522 526 towards attached body 550 end face keep out to rotation stop cover 529 deviate from attached body 550 side axial limitings.
Embodiment 17
As shown in Figure 37, Figure 38, as different from Example 15, being fastenedly connected component also includes screw rod rotation stop pad 601.
Screw rod rotation stop pad 601 is circular plate-like shape stamping parts, and shaft core position coordinates provided with the external thread part 603 with screw rod 602 Through hole 615, the circle of an end face of screw rod rotation stop pad 601 provided with one and the gap of rotation stop boss 604 cooperation of screw rod 602 stops Turn through hole 605, screw rod rotation stop pad 601 along the periphery of through hole 615 to the circumferential uniform multiple insertion teeth 606 being stamped and formed out in side, Described insertion tooth 606 is wedge shape.
The external thread part 603 of screw rod 602 passes through screw rod rotation stop pad from the side that screw rod rotation stop pad 601 deviates from embedded tooth 606 In the circle rotation stop through hole 605 of 601 through hole 615 and the insertion screw rod rotation stop of rotation stop boss 604 pad 601 of screw rod 602, mother is then passed through The through hole 610 on through hole 608, attached body 609, the through hole 612 of rotation stop pad 611 on body 607 are threadedly coupled with locking nut 613, In the rundown process of screw rod 602 and locking nut 613, in the insertion parent 607 of insertion tooth 606 of screw rod rotation stop pad 601, locking Nut 613 axially keeps out rotation stop pad 611, and screw rod rotation stop pad 601, screw rod rotation stop pad 601 are axially kept out in the head 614 of screw rod 602 The insertion parent 607 of insertion tooth 606 in constraint screw rod rotation stop pad 601 rotated relative to parent 607, the rotation stop boss 604 of screw rod 602 Constraint screw rod 602 rotates relative to screw rod rotation stop pad 601 in the circle rotation stop through hole 605 of insertion screw rod rotation stop pad 601, the He of screw rod 602 Parent 607, attached body 609 and screw rod rotation stop pad 601 are fastened together by locking nut 613, screw rod 602 non-rotatably with Parent 607 is installed together.
Embodiment 18
As shown in Figure 39, Figure 40, as different from Example 15, rotation stop pad 700 is square with rounded corners and is not provided with Embedded tooth, rotation stop pad 700 is flexible, and the built-in edges of pointed shape are bent to form in two relative lateral the same sides of rotation stop pad 700 701.Keep out rotation stop pad 700, the insertion parent 704 of built-in edges 701 of rotation stop pad 700 in one end of the rotation prevention portion 703 of locking nut 702 And produce static friction constraint rotation stop pad 700 and rotated relative to parent 704, rotation stop pad 700 is non-rotatably mounted on attached body 705. Embodiment 19
As shown in Figure 41, Figure 42, as different from Example 18, being fastenedly connected component also includes locating part 720.
Locking nut 721 includes clamping part 722, rotation prevention portion 723, blocking part 724, the radially protruding of rotation prevention portion 723 folder successively Hold the blocking part 724 in portion 722 and empty avoiding.
Locating part 720 is plastic parts, includes the locating part body 725 of annular shape, the peripheral shape of locating part body 725 is with stopping The peripheral shape of pivoted housing 726 is similar with merging, and circular diameter is slightly larger than the rotation prevention portion 723 of locking nut 721 in locating part body 725 External diameter, locating part body 725 is each elastic along inner circle axial direction three equally distributed Elastic buckles 727 radially inwardly projecting again The blocking part 728 of buckle 727 is towards the axis direction of locating part body 725, in locating part body 725 and the homonymy of Elastic buckle 727 End face protrude above six roots of sensation limited post 729, in the end of limited post 729 provided with keeping out ring 730.
Rotation stop covers 726 for metalwork, including circular rotation stop of the center provided with rotation stop through hole 731 covers body 732, only Turn the avoiding hollow groove 733 of the Elastic buckle 727 of the circumferentially uniform three empty avoiding locating parts 720 of hole wall of through hole 731, in rotation stop through hole The 731 evenly distributed rotation stops for having pointed shape tooth in position for being not provided with avoiding hollow groove 733 cover interior rotation prevention portion 734, are set on rotation stop set 726 There are six circumferentially distributed mounting holes 735 axial, with the cooperation of limited post 729 of locating part 720, in the outer of rotation stop set 726 Week is provided with three holding tanks 736 for being used for taking out locating part 720.
Rotation stop set 726 after machining is put into the injection mold of shaping locating part 720, injection molding locating part 720, the limited post 729 of such locating part 720 keeps out ring 730 through the mounting hole 735 of rotation stop set 726, by limited post 729 Locating part 720 is fixed on rotation stop set 726, Elastic buckle 727 is placed in the avoiding hollow groove 733 of rotation stop set 726.
The periphery of rotation stop pad 737 includes connection on two arc surfaces substantially symmetrical about its central axis, connects the parallel of two arc surfaces Two planes, the built-in edges 739 of rotation stop pad 737 are two arc-shaped edges.
Rotation stop set 726 is together arranged on outside locking nut 721 with locating part 720, and rotation stop set body 732 is arranged on locking screw Outside the rotation prevention portion 723 of mother 721, the Elastic buckle 727 of locating part 720 is by elastic deformation by rotation prevention portion 723 towards blocking part 724 End face keep out to rotation stop cover 726 deviate from attached body 740 side axial limitings.
Embodiment 20
As shown in Figure 43, Figure 44, a kind of fastening structure, including it is fastenedly connected component, connected piece 1031.
Being fastenedly connected component includes threaded connector 1032, the two structure identical locking nuts 1033 of U-shaped, two knots Structure identical rotation stop set 1034, two structure identicals keep out nut 1035.
Threaded connector 1032 includes the threaded connector body 1036 of U-shaped, and the two ends of threaded connector body 1036 are equal Provided with external thread part 1037, the external diameter of external thread part 1037 is less than the external diameter of threaded connector body 1036, two external thread parts 1037 are parallel to each other and the corresponding end face of normal thread connector body 1036.
Locking nut 1033 is outer-hexagonal nut, six planar shapeds of the periphery of locking nut 1033 circumferentially arrange six Individual nut rotation prevention portion 1038, shaft core position is provided with tapped through hole 1039.
The shaft core position of rotation stop set 1034 is provided with the axial rotation stop through hole 1040 coordinated with locking nut 1033, in rotation stop Set 1034 an end face on an axially projecting rotation stop boss 1041, rotation stop boss 1041 keep out position circumferential direction, Direction is unscrewed towards screw rod.The hole wall of rotation stop through hole 1040 is the phase knot that two structure identical regular hexagon holes rotate 30 ° Structure, forms 12 wedge angle connected in stars, each wedge angle connected in star is by the two of regular hexagon hole on the hole wall of rotation stop through hole 1040 Intersecting plane is formed, two intersecting planar shapeds of wedge angle connected in star into the cooperation of the nut rotation prevention portion 1038 of locking nut 1033 only Rotation prevention portion 1042 in pivoted housing.
The shaft core position of nut 1035 is kept out provided with tapped through hole 1046, the connection empty avoiding of tapped through hole 1046 locking nut 1033 Emptiness avoiding hole 1043.
The through hole that connected piece 1031 coordinates provided with two with the external thread part 1037 of described threaded connector 1032 1044, the axial line distance of two through holes 1044 is equal with the axial line distance of two external thread parts 1037, the direction of connected piece 1031 The side of rotation stop set 1034 is provided with the rotation stop circular hole 1045 coordinated with the gap of rotation stop boss 1041.
The external thread part 1037 at the two ends of threaded connector 1032 is each passed through on connected piece 1031 corresponding through hole 1044 It is threadedly coupled with corresponding locking nut 1033, the constraint phase of threaded connector 1032 of two on connected piece 1031 through hole 1044 Connected piece 1031 is rotated, threaded connector body 1036 axially keeps out the side of connected piece 1031, the axle of locking nut 1033 To keeping out the opposite side of connected piece 1031, the locking nut 1033 at the two ends of threaded connector 1032 by threaded connector 1032 and by Connector 1031 is fastened together.
Rotation stop set 1034 is arranged on outside locking nut 1033, and keeping out for rotation stop boss 1041 is located proximate to rotation stop circular hole 1045 Or contacted with rotation stop circular hole 1045, nut rotation prevention portion 1038 and the phase of 1042 fiting constraint locking nut of rotation prevention portion 1033 in rotation stop set Rotation stop set 1034 is rotated, rotation stop boss 1041 is supported in the side that direction is unscrewed towards locking nut 1033 by rotation stop circular hole 1045 Gear, rotation stop set 1034 are arranged on the outer common constraint rotation stop set 1034 of locking nut 1033 and rotated relative to connected piece 1031, keep out Rotation stop is covered 1034 axial limitings outside the nut rotation prevention portion 1038 of locking nut 1033 by nut 1035,1032 liang of threaded connector Together with the locking nut 1033 at end is non-rotatably mounted at threaded connector 1032, connected piece 1031.
Embodiment 21
As shown in Figure 45 to Figure 47, as different from Example 5, along circumferentially uniform three sides in the periphery of rotation stop through hole 1071 The empty avoiding through hole 1072 of shape, the periphery for covering 1073 in rotation stop is provided with three holding tanks.Rotation stop through hole 1071 is the internal gear of closure Shape hole.
Locating part 1074 includes circular locating part body 1075, in being provided with the center of locating part body 1075 Heart through hole 1076, the minimum-value aperture of central through hole 1076 is more than the maximum diameter of hole of rotation stop through hole 1071.In central through hole 1076 Circumferentially uniform three grooves 1077 of hole wall, end face, the correspondence equal homonymy of each groove 1077 of vertical locating part body 1075 are provided with The first elastic arm 1078 flushed with the bottom surface of each groove 1077, along the end of the first elastic arm 1078 to central through hole 1076 The arc elastic arm 1079 of axle center circular arc bending, arcuately the end of elastic arm 1079 form the second elastic arm vertically downward again 1080, form limiting section 1081 to the axle center horizontal buckling of central through hole 1076 in the end of the second elastic arm 1080.First elasticity Arm 1078, the second elastic arm 1080 are symmetrical on the axial line of arc elastic arm 1079.First elastic arm 1078, arc elastic arm 1079th, the second elastic arm 1080 formation U-shaped elastic arm 1082.Limiting section 1081 is with locating part body 1075 in same plane.Limit The external diameter of position part body 1075 is less than the external diameter that rotation stop covers 1073.U-shaped elastic arm 1082 coordinates with empty avoiding through hole 1072.
The axial location that rotation stop covers 1073 axis of rotation stop through hole 1071 and the central through hole 1076 of locating part 1074 is closed Three U-shaped elastic arms 1082 on system's correspondence, locating part 1074 are separately mounted to three empty avoiding through holes on rotation stop set 1073 In 1072, the end face of locating part body 1075 is together with the end face butt-joint that rotation stop covers 1073.The limiting section of locating part 1074 The rotation stop through hole 1071 of 1081 radially protruding rotation stops set 1073.First elastic arm 1078 of locating part 1074 and the second elastic arm The distance between 1080 are more than the hole wall of the rotation stop through hole 1071 of the protrusion rotation stop of limiting section 1081 set 1073 of locating part 1074 Length, to provide deformation space.
Rotation stop set 1073 is with locating part 1074 together outside the rotation prevention portion 1084 of locking nut 1083, and rotation stop set 1073 rotation stop boss (not shown) is inserted in the rotation stop circular hole (not shown) of attached body 1085, the U-shaped elastic arm of locating part 1074 1082 make the accommodating sky of limiting section 1081 that limiting section 1081 inserts rotation prevention portion 1084 with blocking part 1086 is formed by elastic deformation In and kept out by rotation prevention portion 1084 towards the end face of blocking part 1086, to rotation stop cover 1073 deviate from attached body 1085 a side axles To spacing.
Embodiment 22
As shown in Figure 48 to Figure 50, as different from Example 21, locating part includes three structure identical elastic spacings Part 1101.Elastic spacing one 1101 is formed by the sheet metal bending of strip.Elastic spacing one 1101 includes horizontal limiting section 1102, the first elastic arm 1103 that vertical limiting section 1102 is bent, along the end of the first elastic arm 1103 to limiting section 1102 Direction horizontal buckling, again away from the direction of limiting section 1102 reversely bending obliquely, again arc transition reversely bending, court again obliquely To the buckle 1104 of the direction horizontal buckling of limiting section 1102, then second bent downwards along the end vertical of buckle 1104 Elastic arm 1105, then along the end of the second elastic arm 1105 away from the blocking part of the direction horizontal buckling of limiting section 1102 1106, blocking part 1106 and limiting section 1102 are located at approximately the same plane.The two horizontal parts 1107 of buckle 1104 are located at same flat Face.The distance between limiting section 1102 and horizontal part 1107 of corresponding buckle 1104 are equal to the thickness that rotation stop covers 1108.
Buckle 1104 towards the axle center of rotation stop set 1108 and is passed through into rotation stop by the limiting section 1102 of elastic spacing one 1101 Elastic spacing one 1101 is installed together by the empty avoiding through hole 1109 on set 1108 with rotation stop set 1108, elastic spacing one 1101 Between the hole wall of the rotation stop through hole 1110 of the radially protruding rotation stop of limiting section 1102 set 1108, two elastic arms of elastic spacing one 1101 Distance be more than elastic spacing one 1101 limiting section 1102 protrusion rotation stop set 1108 rotation stop through hole 1110 hole wall length, To provide deformation space.Two other elastic spacing one 1101 is installed together with rotation stop set 1108 in the same way.
Rotation stop set 1108 is together arranged on stopping for locking nut 1111 with three elastic spacing ones 1101 being installed together Outside transfer part 1112, and the rotation stop boss (not shown) of rotation stop set 1108 is inserted in the rotation stop circular hole (not shown) of attached body 1113, bullet Property locating part 1101 the elastic arm 1103 of buckle 1104 and first by elastic deformation make limiting section 1102 insert locking nut Towards keeping out in the accommodation space of limiting section 1102 that 1111 rotation prevention portion 1112 is formed with blocking part 1114 and by rotation prevention portion 1112 The end face in portion 1114 keeps out, the 1108 side axial limitings for deviating from attached body 1113 is covered to rotation stop.
Embodiment 23
As shown in figure 51, as different from Example 22, in the blocking part 1242 of each elastic spacing one 1241 away from card The side of button 1243 is provided with padded raised the 1244 of more than three, and limiting section 1245 and blocking part 1242 are in approximately the same plane. Padded raised 1244 make limiting section 1245 coordinate with attached body (not shown) and rotation stop set (not shown) gap, rotation stop is spacing During component is arranged on the rotation stop blocking part 1242 of screw rod (not shown), the first elastic arm 1246 and the elasticity of buckle 1243 During deformation, it is easy to limiting section 1245 to be covered in rotation stop and is moved between attached body.
The distance between buckle 1243 and blocking part 1242 are equal to the thickness that rotation stop covers, from the top of buckle 1243 to limit The direction both sides of position part progressively reduce, the elastic spacing one 1241 of this structure, the empty avoiding that the second elastic arm 1247 covers with rotation stop Through hole tight fit, when the elastic arm 1246 of buckle 1243 and first does not have elastic deformation, elastic spacing one 1241 relative will not stop Pivoted housing is subjected to displacement, and in the environment of fastening structure is in strenuous vibration, can substantially reduce noise, and be easy to rotation stop spacing Component is arranged on outside the rotation stop blocking part 1242 of screw rod；First elastic arm 1246 coordinates with empty avoiding via clearance, is limited by rotation stop During hyte part is arranged on screw rod, when the first elastic arm 1246 and 1243 elastic deformation of buckle, the first elastic arm 1246 can The free movement in empty avoiding through hole, makes limiting section 1245 be more easy to stretch into limiting section accommodation space.
Embodiment 24
As shown in figure 52, as different from Example 21, from the top of arc elastic arm 1261 to the direction of locating part Both sides progressively reduce, the locating part of this structure, the first elastic arm 1262, half of the arc bullet connected with the first elastic arm 1262 Property arm 1261 and rotation stop cover the empty avoiding through hole (not shown) tight fit of (not shown), half of the arc connected with the second elastic arm 1263 Shape elastic arm 1261, the second elastic arm 1263 coordinate with empty avoiding via clearance, so in the elasticity of arc elastic arm 1261 and second When arm 1263 does not have elastic deformation, locating part will not be subjected to displacement with respect to rotation stop set, and strenuous vibration is in fastening structure In the environment of, noise can be substantially reduced, and the rotation stop blocking part for being easy to rotation stop limit assembly to be arranged on screw rod (not shown) (does not show Go out) outside；During rotation stop limit assembly is arranged on screw rod, the elasticity of 1261 and second elastic arm of arc elastic arm 1263 becomes During shape, half elasticity of 1261 and second elastic arm of arc elastic arm 1263 can the free movement in empty avoiding through hole, make limiting section more Easily stretch into limiting section accommodation space.
Embodiment 25
As shown in Figure 52, Figure 54, crankshaft connecting rod system includes being fastenedly connected component, bent axle 1281, connection rod set.
It is fastenedly connected component as different from Example 1, the periphery of head 1297 of screw rod 1288 is big including a central angle Rotation stop plane 1282 in 180 ° of arc surfaces and a connection arc surface two ends.
Connection rod set includes gonnecting rod body 1283, connecting rod cap 1284, big end bearing shell 1285.Gonnecting rod body 1283 includes connecting Bar major part 1286 and small end of connecting rod 1287.Big end 1286 is provided with the through hole coordinated with the external thread part 1289 of screw rod 1288 1290, connecting rod cap 1284 is provided with the through hole 1291 coordinated with the external thread part 1289 of screw rod 1288.In connecting rod cap 1284 are provided with the circular major part rotation stop that the rotation stop boss 1293 for covering 1292 with rotation stop coordinates away from the side of big end 1286 Hole 1294.
Big end bearing shell 1285 is filled the span of a man's arms outside bent axle 1281, and big end 1286 and connecting rod cap 1284 are filled the span of a man's arms even Outside bar major part bearing shell 1285；The external thread part 1289 of screw rod 1288 passes through through hole 1290, big end on big end 1286 Through hole 1291 on lid 1284 be threadedly coupled with the tapped through hole 1296 of locking nut 1295 and screw rod 1288 rotation stop plane 1282 keep out constraint screw rod 1288 by the side wall of big end 1286 rotates relative to big end 1286, and screw rod 1288 and connecting rod are big First 1286 are non-rotatably mounted at together, and big end 1286, locking nut are axially kept out in the head 1297 of screw rod 1288 1295 axially keep out connecting rod cap 1284, and screw rod 1288 and locking nut 1295 are by big end 1286 and connecting rod cap 1284 are fastened together.
Rotation stop set 1292 is arranged on outside the rotation prevention portion 1298 of locking nut 1295 and rotation stop covers 1292 rotation stop boss 1293 Keep out and be located proximate to or contacted with major part rotation stop hole 1294, keep out the external thread part 1289 that nut 1299 is arranged on screw rod 1288 On, keep out nut 1299 and the 1292 side axial limitings for deviating from connecting rod cap 1284 are covered to rotation stop.The rotation stop of rotation stop set 1292 Boss 1293 is kept out constraint rotation stop set 1292 by major part rotation stop hole 1294 in the side that locking nut 1295 unscrews direction and connected relatively The big skull 1284 of bar rotates, nut rotation prevention portion 1300 and the relative locking of the fiting constraint rotation stop of rotation prevention portion 1301 set in rotation stop set 1292 Nut 1295 is rotated, and screw rod 1288 is non-rotatably pacified with locking nut 1295, big end 1286 and connecting rod cap 1284 It is fitted together.
For the present invention, rotation stop that rotation stop is put set rotation stop boss can be two or more, be provided with attached body with The attached body rotation stop hole that rotation stop set rotation stop boss coordinates one by one；Attached body rotation stop hole may also be the integral multiple that rotation stop covers rotation stop boss；Root According to embodiments of the invention, those skilled in the art is not required to any creative work and achieved that, therefore no longer with specific real The mode of applying illustrates.

Claims (10)

1. a kind of fastening structure, including it is fastenedly connected component, parent, attached body；Being fastenedly connected component includes screw rod, locking screw It is female；Screw rod includes external thread part, rotation stop blocking part, rotation stop blocking part radially protruding external thread part；Be equipped with parent, attached body with The through hole that the external thread part of screw rod coordinates；Screw rod is threadedly coupled through the through hole on parent, the through hole of attached body with locking nut, spiral shell Bar is non-rotatably installed together with parent；
It is characterized in that：Being fastenedly connected component also includes rotation stop set；
The periphery of locking nut is provided with circumferential evenly distributed, axial nut rotation prevention portion；
The rotation stop through hole of an axial direction is provided only with rotation stop set, the hole wall of rotation stop through hole is provided with what is coordinated with nut rotation prevention portion Rotation prevention portion in rotation stop set；Axial projection Constrained rotation stop set unscrews direction towards locking nut and rotated on the end face that rotation stop covers Rotation stop set rotation stop boss, rotation stop set rotation stop boss position of keeping out unscrew direction in circumferential direction, towards locking nut；
It is provided with attached body away from the side of parent and covers the attached body rotation stop hole that rotation stop boss gap coordinates with rotation stop；
Rotation stop set is arranged on outside locking nut, and rotation stop set rotation stop boss is inserted in attached body rotation stop hole, and rotation stop set is by axial limiting Outside locking nut；Nut rotation prevention portion covers relative to rotation stop with rotation prevention portion fiting constraint locking nut in rotation stop set and rotated, rotation stop set Rotation stop boss is kept out constraint rotation stop set by attached body rotation stop hole in the side that direction is unscrewed towards locking nut and rotated relative to attached body；
Screw rod, locking nut are non-rotatably installed together with parent, attached body.
2. a kind of fastening structure, including it is fastenedly connected component, parent, attached body；Being fastenedly connected component includes screw rod, locking screw It is female；Screw rod includes external thread part, rotation stop blocking part, rotation stop blocking part radially protruding external thread part；Be equipped with parent, attached body with The through hole that the external thread part of screw rod coordinates；
It is characterized in that：Being fastenedly connected component also includes rotation stop set, rotation stop pad；
The periphery of locking nut is provided with circumferential evenly distributed, axial nut rotation prevention portion；
The rotation stop through hole of an axial direction is provided only with rotation stop set, the hole wall of rotation stop through hole is provided with what is coordinated with nut rotation prevention portion Rotation prevention portion in rotation stop set；Axial projection Constrained rotation stop set unscrews direction towards locking nut and rotated on the end face that rotation stop covers Rotation stop set rotation stop boss, rotation stop set rotation stop boss position of keeping out unscrew direction in circumferential direction, towards locking nut；
The through hole coordinated with the external thread part of screw rod is provided with rotation stop pad, the rotation stop pad that rotation stop boss gap coordinates is covered with rotation stop Rotation stop hole；In rotation stop pad towards being convexly equipped with rotation stop pad rotation stop boss on the end face of attached body；
The height of rotation stop set rotation stop boss is less than or equal to the thickness of rotation stop pad, is provided with and matches somebody with somebody with rotation stop pad rotation stop boss on attached body The attached body rotation stop hole closed；
Screw rod is threadedly coupled through the through hole on parent, the through hole on attached body, the through hole of rotation stop pad with locking nut, and screw rod can not Rotatably it is installed together with parent；
Rotation stop pad rotation stop boss inserts constraint rotation stop pad in attached body rotation stop hole and rotated relative to attached body；
Rotation stop set is arranged on outside locking nut, in rotation stop set rotation stop boss insertion rotation stop pad rotation stop hole, and rotation stop set is axially limited Position is outside locking nut；Nut rotation prevention portion covers relative to rotation stop with rotation prevention portion fiting constraint locking nut in rotation stop set and rotated, rotation stop Set rotation stop boss keeps out constraint rotation stop by rotation stop pad rotation stop hole in the side that direction is unscrewed towards locking nut and covers relative rotation stop pad Rotation；
Screw rod, locking nut are non-rotatably installed together with parent, attached body, rotation stop pad.
3. one kind is fastenedly connected component, in addition to screw rod, locking nut；Screw rod includes external thread part, rotation stop blocking part, and rotation stop is supported Stopper radially protruding external thread part；It is characterized in that：Also include rotation stop set；The periphery of locking nut provided with it is circumferential it is evenly distributed, The nut rotation prevention portion of axial direction；
Rotation stop set is ring-type, the rotation stop through hole of an axial direction is provided only with rotation stop set, provided with week on the hole wall of rotation stop through hole The rotation prevention portion into evenly distributed, axial rotation stop set；Rotation stop cover an end face on be axially convexly equipped with attached body rotation stop hole and/ Or rotation stop pad rotation stop hole coordinates, constraint rotation stop set unscrews the rotation stop set rotation stop boss that direction rotates towards locking nut, rotation stop set stops The position of keeping out for turning boss unscrews direction in circumferential direction, towards locking nut；The height of rotation stop set rotation stop boss is more than rotation stop The axial length of rotation prevention portion in set；
Screw rod and locking nut threaded connection, rotation stop set are arranged on outside locking nut；Nut rotation prevention portion and rotation prevention portion in rotation stop set Fiting constraint locking nut covers relative to rotation stop and rotated.
4. one kind as claimed in claim 3 is fastenedly connected component, it is characterised in that：Described rotation stop set also includes elastic arm； It is provided with rotation stop set and connects, coordinates with elastic arm with rotation stop through hole, providing change for housing elastic arm and being deformed for elastic arm The avoiding hollow groove in shape space, described rotation stop through hole is the hole of non-closed；One end of elastic arm covers rotation stop with rotation stop set away from rotation stop The side of boss is connected, the other end towards rotation stop be arranged with rotation stop set rotation stop boss side and the end end radially to The axle center of rotation stop through hole is provided with limiting section, and limiting section is vertical with the axis of rotation stop through hole, limiting section radially protruding rotation stop through hole；Institute The elastic arm stated is just right with described avoiding hollow groove.
5. one kind as claimed in claim 3 is fastenedly connected component, it is characterised in that：Also include locating part, a rotation stop set pair Answer a locating part；
Locating part includes the locating part body of ring-type, and a central through hole, center are provided only with the center of locating part body The minimum-value aperture of through hole is more than the maximum diameter of hole of rotation stop through hole；Also include the more than two elasticity being connected with locating part body Arm, the limiting section parallel with locating part body, limiting section radially protruding are provided with elastic arm end to central through hole axis direction Central through hole；The minimum diameter of more than two limiting sections is less than the minimum diameter of rotation stop through hole；
It is provided with and coordinates with elastic arm, for housing elastic arm and provide the empty avoiding of deformation space for elastic arm deformation on rotation stop set Space；Locating part is installed together with rotation stop set, the empty avoiding interference fit that elastic arm covers with rotation stop；The limiting section footpath of locating part To the rotation stop through hole of protrusion rotation stop set；It is more than locating part in the maximum deflection of the direction parallel with locating part body, elastic arm Limiting section protrusion rotation stop set rotation stop through hole hole wall length.
6. one kind as claimed in claim 3 is fastenedly connected component, it is characterised in that：Also include locating part；Described locating part Including more than two elastic spacing ones；Described elastic spacing one includes horizontal limiting section, and vertical limiting section bending is formed The first elastic arm, along the first elastic arm end to limiting section direction and parallel limiting section bending, again away from limiting section direction it is anti- To the buckle for bending obliquely, reversely bending obliquely again, being re-directed towards limiting section direction and the bending of parallel limiting section, then edge Second elastic arm of buckle end bending downwards, then deviate from the parallel limiting section in limiting section direction along the end of the second elastic arm The blocking part of bending；
It is provided with and coordinates with elastic arm, for housing elastic arm and provide the empty avoiding of deformation space for elastic arm deformation on rotation stop set Hole；
The axle center that the limiting section of elastic spacing one is covered towards rotation stop and the empty avoiding through hole for passing through rotation stop to put Elastic buckle, Be snapped by elastic spacing one side keep out, side is kept out by blocking part and is installed together elastic spacing one and locating part, The hole wall of the rotation stop through hole of the limiting section radially protruding rotation stop set of elastic spacing one, between two elastic arms of elastic spacing one away from From the length of the hole wall of the rotation stop through hole of the limiting section protrusion rotation stop set more than elastic spacing one.
7. it is fastenedly connected component as described in claim 4 to 6 any one claim；It is characterized in that：Locking nut Periphery sets the limiting section accommodation space coordinated with limiting section, is towards the face of the rotation stop blocking part of screw rod in limiting section accommodation space Face is kept out for keep out limiting section；
Rotation stop set is arranged on outside locking nut, and elastic arm makes limiting section insert in limiting section accommodation space, simultaneously by elastic deformation Keep out, the side axial limiting away from external thread part is covered to rotation stop in the face of keeping out for being limited portion's accommodation space.
8. a kind of fastening structure including being fastenedly connected component as claimed in claim 3, it is characterised in that：Also include mother Body, attached body；The through hole with the external thread part cooperation of screw rod is equipped with parent, attached body；
Being fastenedly connected component also includes rotation stop pad；The through hole coordinated with the external thread part of screw rod and rotation stop are provided with rotation stop pad Cover the rotation stop pad rotation stop hole that rotation stop boss gap coordinates；The height of rotation stop set rotation stop boss is less than or equal to the thickness of rotation stop pad；
Screw rod is threadedly coupled through the through hole on parent, the through hole on attached body, the through hole of rotation stop pad with locking nut, and screw rod can not Rotatably it is installed together with parent；
The side covered from rotation stop is acted as a cushion provided with embedded division in rotation stop, and the hardness of attached body is less than the hardness of the embedded division of rotation stop pad, only The attached internal constraint rotation stop pad of embedded division insertion for turning pad rotates relative to attached body；Or rotation stop act as a cushion from rotation stop cover side be coated with Friction particles, produce sufficiently large restrictions of the frictional force rotation stop pad and are rotated relative to attached body between the friction particles of rotation stop pad and attached body；Or Rotation stop pad is fixed on constraint rotation stop pad on attached body by fixing glue and rotated relative to attached body；
Rotation stop set is arranged on outside locking nut, in rotation stop set rotation stop boss insertion rotation stop pad rotation stop hole, and rotation stop set is axially limited Position is outside locking nut；Nut rotation prevention portion covers relative to rotation stop with rotation prevention portion fiting constraint locking nut in rotation stop set and rotated, rotation stop Set rotation stop boss keeps out constraint rotation stop by rotation stop pad rotation stop hole in the side that direction is unscrewed towards locking nut and covers relative rotation stop pad Rotation；
Screw rod, locking nut are non-rotatably installed together with parent, attached body, rotation stop pad.
9. a kind of fastening structure for being fastenedly connected component including as described in claim 3 to 6 any one claim, It is characterized in that：Also include parent, attached body；
Described parent is integral type structure with attached body, forms the annular solid with fracture；The two of the fracture of described annular solid End is provided with relative the first installation portion and the second installation portion in the same direction respectively；
The through hole with the external thread part cooperation of described screw rod is equipped with the first installation portion, the second installation portion；Outside screw rod Threaded portion is threadedly coupled through the through hole on the first installation portion, the through hole on the second installation portion with locking nut, screw rod, locking screw First installation portion and the second installation portion are installed together by mother, and screw rod is non-rotatably installed together with the first installation portion；
It is provided with first installation portion away from the side of the second installation portion and covers the first installation portion that rotation stop boss gap coordinates with rotation stop Rotation stop hole；Rotation stop set is arranged on outside locking nut, and rotation stop set rotation stop boss is inserted in the first installation portion rotation stop hole, and rotation stop set quilt Axial limiting is outside locking nut；Nut rotation prevention portion rotation stop set relative with rotation prevention portion fiting constraint locking nut in rotation stop set revolves Turn, rotation stop set rotation stop boss is kept out by the first installation portion rotation stop hole in the side that direction is unscrewed towards locking nut and constrains rotation stop set Relative to the rotation of the first installation portion；
Screw rod, locking nut are non-rotatably installed together with the second installation portion, the first installation portion.
10. a kind of crankshaft connecting rod system, including bent axle, connection rod set, it is fastenedly connected component；It is big that connection rod set includes gonnecting rod body, connecting rod Skull, big end bearing shell；Being fastenedly connected component includes screw rod, locking nut；Screw rod includes external thread part, rotation stop blocking part, Rotation stop blocking part radially protruding external thread part；Gonnecting rod body includes big end and small end of connecting rod, and big end, big end are covered It is equipped with the through hole with the external thread part cooperation of screw rod；
It is characterized in that：Being fastenedly connected component also includes rotation stop set, locating part；
The periphery of locking nut is provided with circumferential evenly distributed, axial nut rotation prevention portion；
The rotation stop through hole of an axial direction is provided only with rotation stop set, the hole wall of rotation stop through hole is provided with what is coordinated with nut rotation prevention portion Rotation prevention portion in rotation stop set；Axial projection Constrained rotation stop set unscrews direction towards locking nut and rotated on the end face that rotation stop covers Rotation stop set rotation stop boss, rotation stop set rotation stop boss position of keeping out unscrew direction in circumferential direction, towards locking nut；
The major part rotation stop hole that only convex portion coordinates covered with rotation stop is provided with away from the side of connecting rod cap in big end；
Big end bearing shell is filled the span of a man's arms outside bent axle, and big end and connecting rod cap are filled the span of a man's arms outside big end bearing shell；Screw rod The through hole that external thread part sequentially passes through the through hole of big end, big end is covered is threadedly coupled with locking nut, and screw rod can not Rotatably it is installed together with big end, big end and connecting rod cap are installed together by screw rod, locking nut；
Rotation stop set is arranged on outside locking nut, and in rotation stop set rotation stop boss insertion major part rotation stop hole, locating part is arranged on screw rod Or the side axial limiting that rotation stop convex portion is covered away from rotation stop is covered on locking nut to rotation stop；Nut rotation prevention portion and rotation stop in rotation stop set Portion's fiting constraint rotation stop set is stopped relative to the rotation of locking screw parent phase, rotation stop set rotation stop boss in the direction that unscrews of locking nut by major part Turn hole is kept out the relative big end of constraint rotation stop set and rotated, and connecting rod cap and big end are without rotating against, screw rod, locking screw Mother is non-rotatably installed together with connecting rod cap and big end.
CN201620999511.3U 2016-08-31 2016-08-31 A kind of fastening structure, it is fastenedly connected component, crankshaft connecting rod system Active CN206468665U (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106246697A (en) * 2016-08-31 2016-12-21 杨东佐 A kind of fastening structure, it is fastenedly connected assembly, crankshaft connecting rod system
CN109723711A (en) * 2018-03-20 2019-05-07 卡斯通科技(北京)有限公司 A kind of screw fastening structure
CN110410408A (en) * 2019-08-25 2019-11-05 华东交通大学 A kind of Anti-loose fastener
CN111506152A (en) * 2019-01-30 2020-08-07 和硕联合科技股份有限公司 Knob assembly and flying shuttle structure with same
CN113931917A (en) * 2021-08-30 2022-01-14 航天特种材料及工艺技术研究所 Gear type locking and anti-loosening mechanism

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106246697A (en) * 2016-08-31 2016-12-21 杨东佐 A kind of fastening structure, it is fastenedly connected assembly, crankshaft connecting rod system
CN109723711A (en) * 2018-03-20 2019-05-07 卡斯通科技(北京)有限公司 A kind of screw fastening structure
CN111506152A (en) * 2019-01-30 2020-08-07 和硕联合科技股份有限公司 Knob assembly and flying shuttle structure with same
CN110410408A (en) * 2019-08-25 2019-11-05 华东交通大学 A kind of Anti-loose fastener
CN113931917A (en) * 2021-08-30 2022-01-14 航天特种材料及工艺技术研究所 Gear type locking and anti-loosening mechanism
CN113931917B (en) * 2021-08-30 2023-06-16 航天特种材料及工艺技术研究所 Gear type locking and anti-loose mechanism

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