CN108591221B - Anti-loosening threaded fastening assembly and threaded fastener locking ring - Google Patents

Anti-loosening threaded fastening assembly and threaded fastener locking ring Download PDF

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Publication number
CN108591221B
CN108591221B CN201810503151.7A CN201810503151A CN108591221B CN 108591221 B CN108591221 B CN 108591221B CN 201810503151 A CN201810503151 A CN 201810503151A CN 108591221 B CN108591221 B CN 108591221B
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China
Prior art keywords
rotation stopping
threaded fastener
locking ring
concave
convex
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CN201810503151.7A
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Chinese (zh)
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CN108591221A (en
Inventor
付建建
徐家强
谢茂阳
孙鹏辉
刘前锋
李蓓蕾
宋阳
娄起
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Henan Aerospace Precision Machining Co Ltd
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Henan Aerospace Precision Machining Co Ltd
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Priority to CN201810503151.7A priority Critical patent/CN108591221B/en
Publication of CN108591221A publication Critical patent/CN108591221A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
    • F16B35/04—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws with specially-shaped head or shaft in order to fix the bolt on or in an object
    • F16B35/041—Specially-shaped shafts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B39/00—Locking of screws, bolts or nuts
    • F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
    • F16B39/24—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by means of washers, spring washers, or resilient plates that lock against the object

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bolts, Nuts, And Washers (AREA)
  • Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)

Abstract

The invention relates to an anti-loosening threaded fastening assembly and a threaded fastener locking ring. The anti-loosening threaded fastening assembly comprises a threaded fastener and a locking ring, wherein a convex-concave rotation stopping structure is arranged on the outer wall of the threaded fastener, the locking ring comprises a main body and a rotation stopping protrusion which exceeds the inner wall of the main body and is used for being matched with a concave part of the convex-concave rotation stopping structure, embedding teeth which are used for being embedded into a connecting piece to be matched with the connecting piece in a rotation stopping mode are arranged on the outer wall of the main body, at least one of the rotation stopping protrusion and the concave part is provided with an inclined guide surface which enables the rotation stopping protrusion to rotate out of the concave part when the rotation stopping protrusion and the concave part rotate relatively, the main body has radial elastic deformation performance, and the radial elastic deformation performance enables the rotation stopping protrusion to move towards the radial outer side of the main body under the action of the inclined guide surface to rotate out of the corresponding concave-. The use is simple and convenient.

Description

Anti-loosening threaded fastening assembly and threaded fastener locking ring
Technical Field
The invention relates to an anti-loosening threaded fastening assembly and a threaded fastener locking ring.
Background
Most of connection of the aerospace engine casing structure adopts studs, threads are arranged at two ends of each stud, the threads at one end are interference threads used for being connected with the casing, and locking force is generated by the fact that the size of each interference thread is larger than that of a threaded hole of the casing, so that the purpose of connecting the casing is achieved. However, the engine may generate high-frequency vibration during use, and the stud may be easily loosened in a vibration environment.
The utility model discloses a chinese utility model patent that the bulletin number is CN204041687U, the bulletin date of authority is 2014.12.24 discloses a locking takes tooth stud, this locking takes tooth stud includes the screw rod and the connecting rod of being connected with the screw rod, be equipped with external spline tooth (the convex-concave structure of splining promptly) on the connecting rod, this locking takes tooth stud still includes the locking ring, the locking ring is complete ring structure, be equipped with on the inner wall of locking ring be used for with the connecting rod on the external spline tooth fit with the internal spline tooth of splining-lock cooperation, the both sides of the outer wall of locking ring are equipped with fan-shaped tooth (embedding tooth promptly).
The Chinese patent with the publication number of CN101598167B and publication date of 2013.06.12 discloses a method and a connection structure for preventing a stud from rotating on a connecting piece, the connection structure for preventing the stud from rotating on the connecting piece comprises the connecting piece, a threaded hole is formed in the connecting piece, a stop ring (namely a locking ring) is arranged at the port of the threaded hole, a stop table is arranged in the middle of the stud, key teeth are arranged on the outer ring and the inner ring of the stop ring, and key teeth are arranged on the outer wall of the stop table.
When the stud is used, the screws at two ends of the stud are both common threads, after the screws are screwed into the threaded holes in the machine body, the locking ring needs to be knocked into the machine body by using a special tool, the sector teeth of the locking ring are fixed with the machine body to enable the locking ring to be incapable of rotating relative to the machine body, meanwhile, the key teeth on the stud are matched with the key teeth of the locking ring to realize rotation stopping matching, and the stud cannot rotate relative to the locking ring, so that the stud is prevented from rotating in the machine body, and the stud is prevented from loosening. The locking ring is of a rigid structure and has no elasticity, the stud and the locking ring cannot rotate relatively due to the rotation stopping fit of the key teeth, and the stud can only be knocked into the connecting piece by a special tool after being screwed in place, so that the process is complicated and the use is inconvenient.
Disclosure of Invention
The invention aims to provide a locking ring of a threaded fastener, which aims to solve the problems that the locking ring in the prior art has no elasticity, a stud and the locking ring cannot rotate relatively, and can only be knocked into a connecting piece by a special tool, and the process is complicated and inconvenient to use; the invention also provides an anti-loose threaded fastening assembly using the threaded fastener locking ring.
In order to solve the technical problem, the technical scheme of the anti-loosening threaded fastening assembly is as follows:
the anti-loosening threaded fastening assembly comprises a threaded fastener and a locking ring, wherein a convex-concave rotation stopping structure is arranged on the outer wall of the threaded fastener, the locking ring comprises a main body and a rotation stopping protrusion which exceeds the inner wall of the main body and is used for being matched with a concave part of the convex-concave rotation stopping structure, embedding teeth which are used for being embedded into a connecting piece to be matched with the connecting piece in a rotation stopping mode are arranged on the outer wall of the main body, at least one of the rotation stopping protrusion and the concave part is provided with an inclined guide surface which enables the rotation stopping protrusion to rotate out of the concave part when the rotation stopping protrusion and the concave part rotate relatively, the main body has radial elastic deformation performance, and the radial elastic deformation performance enables the rotation stopping protrusion to move towards the radial outer side of the main body under the action of the inclined guide surface to rotate out of the corresponding concave-concave.
The technical scheme has the beneficial effects that: the main body of the locking ring has radial elastic deformation performance, the radial elastic deformation performance enables the rotation stopping protrusion to move to the radial outer side of the main body under the action of the inclined guide surface when torque is applied to the threaded fastener, the rotation stopping protrusion rotates out of the corresponding concave part of the convex-concave rotation stopping structure, rotation of the threaded fastener in the main body is further achieved, an operator can install the locking ring into the connecting piece firstly, and can drive the locking ring to be embedded into the connecting piece while screwing the threaded fastener, and the use is simple and convenient.
The main body is provided with a fracture so as to enable the main body to have radial elastic deformation performance. The radial elastic deformation performance of the main body with the fracture is better.
The rotation stopping bulges are two in number and are arranged at the fracture of the main body. The maximum contraction force at the fracture is convenient for increasing the acting force between the rotation stopping protrusion and the convex-concave rotation stopping structure.
The embedded tooth is disposed at a position of the body opposite to the break. The embedding tooth sets up in the position department relative with the fracture, can avoid the biggest position of contractile force, avoids the main part shrink to influence the cooperation of embedding tooth and connecting piece.
The convex surface and the concave surface of the convex-concave rotation stopping structure are both cambered surfaces. The cambered surface facilitates the rotation of the threaded fastener in the locking ring.
The threaded fastener also comprises an anti-thrust platform which is arranged on one side of the convex-concave rotation stopping structure and used for anti-thrust locking ring. The thrust table can push the locking ring to be embedded into the connecting piece while screwing the threaded fastener, and the use is convenient.
The threaded fastener comprises a bolt head arranged at the end part of the threaded fastener, and the thrust platform is formed by the bolt head. The bolt head is used as a thrust platform, so that the structure of the threaded fastener can be simplified.
The technical scheme of the locking ring of the threaded fastener is as follows:
the locking ring of the threaded fastener comprises a main body and a rotation stopping protrusion, wherein the main body is used for allowing the threaded fastener with a convex-concave rotation stopping structure on the outer wall to penetrate through, the rotation stopping protrusion exceeds the inner wall of the main body and is used for being matched with a concave part of the convex-concave rotation stopping structure of the threaded fastener, embedding teeth used for embedding a connecting piece to be matched with the connecting piece in a rotation stopping mode are arranged on the outer wall of the main body, the main body has radial elastic deformation performance, and the radial elastic deformation performance enables the rotation stopping protrusion to move towards the radial outer side of the main body to rotate out of the corresponding concave part of the convex-concave rotation stopping structure when torque is applied to the.
The technical scheme has the beneficial effects that: the main body of the locking ring has radial elastic deformation performance, the radial elastic deformation performance enables the rotation stopping protrusion to move towards the radial outer side of the main body when torque is applied to the threaded fastener, the rotation stopping protrusion can rotate out of the corresponding concave part of the convex-concave rotation stopping structure, rotation of the threaded fastener in the main body is further achieved, an operator can install the locking ring into the connecting piece firstly, the threaded fastener can be screwed, meanwhile, the locking ring is driven to be embedded into the connecting piece, and the use is simple and convenient.
The main body is provided with a fracture so as to enable the main body to have radial elastic deformation performance. The radial elastic deformation performance of the main body with the fracture is better.
The rotation stopping bulges are two in number and are arranged at the fracture of the main body. The maximum contraction force at the fracture is convenient for increasing the acting force between the rotation stopping protrusion and the convex-concave rotation stopping structure.
The embedded tooth is disposed at a position of the body opposite to the break. The embedding tooth sets up in the position department relative with the fracture, can avoid the biggest position of contractile force, avoids the main part shrink to influence the cooperation of embedding tooth and connecting piece.
Drawings
FIG. 1 is a schematic structural view of a check screw fastener assembly of the present invention;
FIG. 2 is a cross-sectional view of the anti-loosening threaded fastener assembly of FIG. 1 taken along line A-A;
FIG. 3 is a schematic view of the locking ring of the anti-loosening threaded fastener assembly of the present invention;
FIG. 4 is an operational view of the anti-loosening threaded fastener assembly of the present invention;
FIG. 5 is a schematic view of the assembly of the anti-loosening threaded fastener assembly of the present invention during operation.
The respective symbols in the figure: 1. a screw; 2. a connecting rod; 3. a bolt head; 4. a convex-concave rotation stopping structure; 5. locking a ring; 6. a connecting member; 51. breaking off; 52. a rotation stopping protrusion; 53. and embedding the teeth.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings.
Embodiment 1 of the anti-loosening threaded fastener assembly of the present invention, as shown in fig. 1 to 5, comprises a threaded fastener and a locking ring 5. The threaded fastener comprises a screw rod 1 and a connecting rod 2 connected with the screw rod 1, the threaded fastener is in threaded connection with a connecting piece 6, and the connecting piece 6 can be a machine body of an engine case and also can be equipment with higher vibration frequency and higher requirement on tightness, such as an automobile chassis and the like. The connecting piece 6 is provided with a threaded hole for the fixed connection of the threaded fastener, and the threaded hole is a stepped hole with the increased inner diameter at the hole opening. In the present embodiment, the threaded fastener is a stopper bolt, and a bolt head 3 is provided at one end of the stopper bolt away from the screw rod 1. The outer wall of the screw rod 1 is provided with an external thread matched with the threaded hole on the connecting piece 6, and the external thread on the screw rod 1 can be a common thread without an interference thread.
The outer wall of the connecting rod 2 is provided with a convex-concave rotation stopping structure 4, and the convex surface and the concave surface of the convex-concave rotation stopping structure 4 are both cambered surfaces, so that the threaded fastener can conveniently rotate in the locking ring. The locking ring 5 comprises a main body, the inner wall of the main body is provided with a rotation stopping bulge 52 matched with the convex-concave rotation stopping structure 4 on the connecting rod 2, the outer wall of the rotation stopping bulge 52 is spherical, and the outer wall of the rotation stopping bulge 52 and the concave surface of the concave part of the convex-concave rotation stopping structure 4 form an inclined guide surface for enabling the rotation stopping bulge 52 to rotate out of the concave part; in other embodiments, a curved surface may be provided on only one of the male and female rotation stopping structures and the rotation stopping protrusions, and the curved surface forms an inclined guide surface. The body has radial elastic deformability which enables the rotation stop projections 52 to move radially outward of the body under the action of the inclined guide surfaces to rotate out of the respective recessed portions of the male and female rotation stop structure 4 when torque is applied to the threaded fastener, thereby enabling rotation of the threaded fastener within the body. The locking ring 5 is a metallic or non-metallic member. The locking ring 5 is provided with a fracture 51, that is, the locking ring 5 is not a complete ring structure, the fracture 51 enables the body of the locking ring 5 to have radial elastic deformation performance, and the locking ring 5 can be contracted and expanded to change the diameter size by a proper amount. When the locking ring 5 is in a free state, the size of the inner diameter of the locking ring 5 is smaller than the size of the outer diameter of the connecting rod 2, so that the locking ring 5 has a certain pretightening force when being sleeved on the connecting rod 2, and the locking ring 5 is assembled on the connecting rod 2 by means of elastic interference. The outer wall of the locking ring 5 is also provided with embedding teeth 53 for embedding the connecting piece 6, and the embedding teeth 53 can realize rotation-stopping assembly with the connecting piece 6.
In a preferred embodiment, two rotation stopping protrusions 52 are provided on two sides of the fracture 51 of the locking ring 5, respectively, and the contraction force of the locking ring 5 at the fracture 51 is the largest, so that the acting force between the rotation stopping protrusions 52 and the male-female rotation stopping structure 4 is increased, and the rotation stopping assembly of the locking ring 5 and the connecting rod 2 is better realized. Preferably, the embedded teeth 53 are arranged at the position of the locking ring 5 opposite to the fracture 51, the farther from the fracture 51, the smaller the contraction force of the locking ring 5, and the embedded teeth 53 are arranged at the position where the contraction force of the locking ring 5 is minimum, so that it is possible to prevent the locking ring 5 from contracting to cause the tooth pitch of the embedded teeth 53 to change, which in turn causes the fit between the embedded teeth 53 and the connecting member 6 to be loose, and to enhance the assembling strength between the locking ring 5 and the connecting member 6.
The anti-loose thread fastening assembly further comprises an anti-thrust platform which is arranged on one side of the convex-concave rotation stopping structure 4 far away from the screw rod 1 and used for thrusting the locking ring 5, the anti-thrust platform can push the locking ring 5 to be embedded into the connecting piece 6 when the locking bolt is screwed into the connecting piece 6, the process that a special tool is used for pressing the locking ring 5 into the connecting piece 6 is omitted, and the anti-loose thread fastening assembly is simple to operate and convenient to use. Preferably, the bolt head 3 forms a thrust abutment. The convex-concave rotation stopping structure 4 on the connecting rod 2 is arranged close to the bolt head 3, when the locking ring 5 is arranged on the convex-concave rotation stopping structure 4, the inner end surface of the bolt head 3 is contacted with the outer end surface of the locking ring 5, so that the locking ring 5 is pushed to be embedded into the connecting piece 6 when the stop bolt is screwed into the connecting piece 6. The bolt head 3 is used as a stop table, so that the structure of the anti-loosening threaded fastening assembly can be simplified.
When the anti-loose thread fastening assembly is used, the locking ring 5 is sleeved on the convex-concave rotation stopping structure 4, the screw rod 1 is screwed into the threaded hole of the connecting piece 6, the bolt head 3 pushes the locking ring 5 to be embedded into a larger inner diameter part of the threaded hole of the connecting piece 6 when the stop bolt rotates, and the locking ring 5 is in rotation stopping fit with the connecting piece 6 by means of the embedding teeth 53. The screwing force is increased, the stop bolt overcomes the acting force between the convex-concave rotation stopping structure 4 and the rotation stopping protrusion 52, the stop bolt rotates in the locking ring 5 until the stop bolt is matched with the threaded hole, and then the connection operation with the connecting piece 6 can be completed.
Embodiment 2 of the check screw fastening assembly of the present invention is different from embodiment 1 in that: in embodiment 1, the locking ring is provided with a fracture, and the fracture enables the locking ring to have radial elastic deformation performance, in this embodiment, the fracture can also be omitted, the rotation stopping protrusion of the locking ring is in clearance fit with the convex-concave rotation stopping structure of the connecting rod, and the radial elastic deformation performance is provided by the material performance of the rotation stopping protrusion, so that the threaded connecting piece can rotate in the locking ring.
Embodiment 3 of the check screw fastening assembly of the present invention is different from embodiment 1 in that: in the embodiment 1, two rotation stopping protrusions are arranged at the fracture, and in the embodiment, only one rotation stopping protrusion can be arranged; the rotation stopping bulge can also be arranged at the back side of the embedded tooth and also can be arranged between the back side of the embedded tooth and the fracture; the rotation stopping protrusion can also be arranged on the end surface of the locking ring, and the end part of the rotation stopping protrusion exceeds the inner wall of the locking ring; in other embodiments, the inner hole of the locking ring 5 may also be a kidney-shaped hole, and includes two oppositely disposed arc segments and a straight segment connecting the arc segments, and the rotation-stopping protrusion is disposed on the straight segment to enhance the radial elastic deformation performance of the rotation-stopping protrusion.
Embodiment 4 of the check screw fastening assembly of the present invention is different from embodiment 1 in that: the teeth are provided at positions opposite to the fracture in embodiment 1, but in this embodiment, the teeth may be provided on the entire outer wall of the locking ring, or may be provided on both sides of the fracture.
Embodiment 5 of the check screw fastening assembly of the present invention is different from embodiment 1 in that: in embodiment 1, both the convex surface and the concave surface of the convex-concave rotation stopping structure are cambered surfaces, in this embodiment, a spline groove may be formed in the outer wall of the connecting rod, the spline groove forms a convex-concave rotation stopping structure, at this time, both the convex surface and the concave surface of the convex-concave rotation stopping structure are inclined surfaces, and the inclined surfaces also form inclined guide surfaces.
Embodiment 6 of the check screw fastening assembly of the present invention is different from embodiment 1 in that: embodiment 1 the thrust stopping platform is a bolt head, and in this embodiment, a shaft shoulder may be provided between the male and female rotation stopping structures and the bolt head, and the shaft shoulder forms the thrust stopping platform.
The invention also provides an embodiment of a locking ring of a threaded fastener, the specific structure of which is the same as that of the locking ring in any embodiment of the anti-loose threaded fastening assembly, and the details are not repeated herein.

Claims (5)

1. Locking screw thread fastening subassembly, including threaded fastener and locking ring, be equipped with the convex-concave structure of splining on threaded fastener's the outer wall, the locking ring include the main part with surpass the inner wall of main part be used for with the concave part complex of convex-concave structure of splining is splitted protrudingly, be equipped with on the outer wall of main part to be used for imbedding the connecting piece in order to splining the complex embedding tooth with the connecting piece, its characterized in that: at least one of the rotation stopping protrusion and the recessed part is provided with an inclined guide surface which enables the rotation stopping protrusion to rotate out of the recessed part when the rotation stopping protrusion and the recessed part rotate relatively, the main body has radial elastic deformation performance which enables the rotation stopping protrusion to move towards the radial outer side of the main body under the action of the inclined guide surface when torque is applied to the threaded fastener so as to rotate out of the corresponding recessed part of the convex-concave rotation stopping structure, and further the threaded fastener rotates in the main body, the threaded fastener further comprises a thrust table which is arranged on one side of the convex-concave rotation stopping structure and used for thrusting a locking ring, the threaded fastener comprises a bolt head arranged at the end part of the threaded fastener, the thrust table is formed by the bolt head, the threaded fastener is a stop bolt, the threaded fastener comprises a screw rod and a connecting rod connected with the screw rod, and the convex-concave rotation stopping structure is arranged on the, the locking bolt is rotated by the bolt head to push the locking ring to be embedded into a larger inner diameter part of an orifice of a threaded hole of the connecting piece, the locking ring is matched with the connecting piece in a rotation stopping way by virtue of the embedding teeth, the screwing force is increased, the locking bolt overcomes the acting force between the convex-concave rotation stopping structure and the rotation stopping protrusion, the locking bolt rotates in the locking ring until the locking bolt is matched with the threaded hole, and the connecting operation with the connecting piece is finished.
2. The anti-loosening threaded fastener assembly according to claim 1, wherein: the main body is provided with a fracture so as to enable the main body to have radial elastic deformation performance.
3. The anti-loosening threaded fastener assembly according to claim 2, wherein: the rotation stopping bulges are two in number and are arranged at the fracture of the main body.
4. The anti-loosening threaded fastener assembly according to claim 2, wherein: the embedded tooth is disposed at a position of the body opposite to the break.
5. The anti-loosening threaded fastener assembly according to any one of claims 1 to 4, wherein: the convex surface and the concave surface of the convex-concave rotation stopping structure are both cambered surfaces.
CN201810503151.7A 2018-05-23 2018-05-23 Anti-loosening threaded fastening assembly and threaded fastener locking ring Active CN108591221B (en)

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Application Number Priority Date Filing Date Title
CN201810503151.7A CN108591221B (en) 2018-05-23 2018-05-23 Anti-loosening threaded fastening assembly and threaded fastener locking ring

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Application Number Priority Date Filing Date Title
CN201810503151.7A CN108591221B (en) 2018-05-23 2018-05-23 Anti-loosening threaded fastening assembly and threaded fastener locking ring

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CN108591221B true CN108591221B (en) 2020-12-04

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112145529A (en) * 2020-09-16 2020-12-29 浙江斯泰新材料科技股份有限公司 Threaded fastener and connecting mechanism

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB208994A (en) * 1923-07-17 1924-01-03 James Le Gallais Thelland Improvements in and relating to self-locking nuts
CN1370935A (en) * 2001-02-13 2002-09-25 株式会社岛野 Locking thread unit
CN101598167A (en) * 2009-04-23 2009-12-09 贵州航天精工制造有限公司 A kind of method and linkage structure that prevents that stud from rotating on matrix
CN102245914B (en) * 2008-12-09 2014-07-09 李相哲 Self-locking bolt nut assembly
CN106246687A (en) * 2015-08-06 2016-12-21 杨东佐 One is fastenedly connected assembly and structure, installation and method for dismounting, crankshaft connecting rod system, track structure, bone attachment means and bone method of attachment

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9863459B2 (en) * 2014-04-23 2018-01-09 United Technologies Corporation Threaded fastener lock
CN204041687U (en) * 2014-09-11 2014-12-24 贵州航太精密制造有限公司 A kind of loose-resitant belt tooth stud

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB208994A (en) * 1923-07-17 1924-01-03 James Le Gallais Thelland Improvements in and relating to self-locking nuts
CN1370935A (en) * 2001-02-13 2002-09-25 株式会社岛野 Locking thread unit
CN102245914B (en) * 2008-12-09 2014-07-09 李相哲 Self-locking bolt nut assembly
CN101598167A (en) * 2009-04-23 2009-12-09 贵州航天精工制造有限公司 A kind of method and linkage structure that prevents that stud from rotating on matrix
CN106246687A (en) * 2015-08-06 2016-12-21 杨东佐 One is fastenedly connected assembly and structure, installation and method for dismounting, crankshaft connecting rod system, track structure, bone attachment means and bone method of attachment

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