CN112576605A - Nut anti-loosening assembly and anti-loosening bolt and nut assembly - Google Patents
Nut anti-loosening assembly and anti-loosening bolt and nut assembly Download PDFInfo
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- CN112576605A CN112576605A CN202011577029.8A CN202011577029A CN112576605A CN 112576605 A CN112576605 A CN 112576605A CN 202011577029 A CN202011577029 A CN 202011577029A CN 112576605 A CN112576605 A CN 112576605A
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- 230000000149 penetrating effect Effects 0.000 claims abstract 2
- 238000003825 pressing Methods 0.000 description 20
- 230000009286 beneficial effect Effects 0.000 description 13
- 238000000034 method Methods 0.000 description 8
- 230000002093 peripheral effect Effects 0.000 description 6
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000011229 interlayer Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000004323 axial length Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
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Classifications
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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
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/02—Locking of screws, bolts or nuts in which the locking takes place after screwing down
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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
- F16B33/00—Features common to bolt and nut
- F16B33/004—Sealing; Insulation
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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
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/02—Locking of screws, bolts or nuts in which the locking takes place after screwing down
- F16B39/08—Locking of screws, bolts or nuts in which the locking takes place after screwing down with a cap interacting with the nut, connected to the bolt by a pin or cotter pin
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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
- F16B41/00—Measures against loss of bolts, nuts, or pins; Measures against unauthorised operation of bolts, nuts or pins
- F16B41/002—Measures against loss of bolts, nuts or pins
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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Abstract
The invention relates to a nut anti-loosening component and an anti-loosening bolt and nut component, wherein the anti-loosening bolt and nut component comprises a bolt and a nut and also comprises a nut anti-loosening component, the nut anti-loosening assembly comprises an anti-loosening piece which is provided with a cylindrical structure, the inner circumferential surface of the cylindrical structure is provided with threads, so that the anti-loosening piece can be screwed on the thread section of a bolt or a screw rod, one end of the cylinder structure is provided with a jacking structure for jacking the nut, the other end of the cylinder structure is provided with a bottom plate fixed at the opening of the end, the bottom plate is provided with a tightening threaded hole penetrating through the wall thickness of the bottom plate, the thread tightening piece is used for being screwed in the tightening threaded hole, one end of the thread tightening piece is a propping end which can extend into the cylinder structure and prop against the end surface of the bolt or the screw rod, the bottom plate and the bolt or the screw rod are tightly propped through the thread tightening piece, and the bolt and nut assembly can be used for stably and reliably fixing a workpiece.
Description
Technical Field
The invention relates to a nut anti-loosening assembly and an anti-loosening bolt and nut assembly.
Background
The bolt and nut assembly fastening is a common and important mechanical fastening form, two parts to be connected are tightly pressed between a nut and a bolt head through screwing of the nut on a bolt thread section, and the fastening form has the characteristics of high connection strength and convenience in disassembly and assembly. Generally, the bolt and nut assembly can realize stable and reliable fastening connection, but in a vibration environment and an environment with large temperature change, the situation that the fastening connection fails due to nut loosening is easily caused, and the reliability of the fastening connection of the bolt and nut assembly is influenced.
Disclosure of Invention
The invention aims to provide a nut anti-loosening assembly to solve the technical problem that the reliability of fastening connection of a bolt and nut assembly in the prior art is low; the invention also aims to provide the anti-loosening bolt and nut assembly to solve the technical problem that the bolt and nut assembly in the prior art is low in fastening and connecting reliability.
The nut anti-loosening structure adopts the following technical scheme:
the utility model provides a nut locking subassembly that takes off, includes the anticreep piece, has tubular structure, set up screw thread on tubular structure's the inner peripheral surface for the anticreep piece can be adorned soon on the screw thread section of bolt or screw rod, tubular structure's one end has the roof pressure structure that is used for roof pressure nut, and the other end has the bottom plate of fixing at this end orifice department, set up the tight screw hole in top that runs through its wall thickness on the bottom plate, the tight piece of screw thread is used for adorning soon in the tight screw hole in top, the one end of the tight piece of screw thread is for can extending the top of supporting of the terminal surface of the interior support bolt or screw rod of tubular structure, tightly pushes up bottom plate and bolt or screw rod through the.
The beneficial effects are that: when the anti-loosening device is used, after the nut is screwed on the corresponding bolt or screw rod, the anti-loosening part is screwed on one end of the bolt or screw rod, which is exposed out of the nut, so that the jacking structure of the anti-loosening part is tightly pressed on the nut, the nut is tightly pressed and stopped by the pressing part, the nut is ensured not to be loosened, then the thread tightening part is screwed in the jacking thread hole towards the bolt or screw rod until the abutting end of the thread tightening part abuts against the end part of the bolt or screw rod, and therefore, the pressing in the direction opposite to the nut is kept between the threads of the anti-loosening part and the threads of the bolt or screw rod, the anti-loosening part is ensured not to be loosened, and stable and reliable pressing force and stopping matching can be provided for the nut.
Further, the screwing direction of the anti-falling piece when the anti-falling piece is installed on the bolt or the screw rod is the same as the screwing direction of the thread tightening piece when the thread tightening piece is installed in the tightening threaded hole.
The beneficial effects are that: when the thread tightening piece is screwed in, the friction force between the thread tightening piece and the anti-falling piece can promote the anti-falling piece to be further screwed on the bolt or the screw rod, and the anti-falling piece can provide pressing force as large as possible for the nut while the abutting fit of the thread tightening piece and the bolt or the screw rod is completed.
Furthermore, one end of the cylinder structure facing the nut forms the jacking structure.
Has the advantages that: the structure of the anti-falling part is simpler, meanwhile, a gap is not reserved between the anti-falling part and the nut, and the anti-falling part is used for protecting the thread section of the bolt or the screw.
Further, the bottom plate seals off the hole at the corresponding end of the cylinder structure, so that the anti-drop part is in a cap-shaped structure.
The beneficial effects are that: after the assembly is completed, the bolt or the screw rod is completely covered in the threaded section of the exposed nut by the nut anti-loosening component, so that the bolt or the screw rod can be completely protected from the threaded section of the exposed nut.
Further, the jacking threaded hole is coaxial with the barrel structure.
The beneficial effects are that: tightly decide the screw hole coaxial with tubular structure for the tight power in top that the anticreep piece received can not the incline, realizes more stable anticreep protection.
Further, the other end of the thread tightening piece is provided with a tool matching structure, the tool matching structure is a sunk groove used for matching with a corresponding tool, and the outer peripheral surface of the thread tightening piece is provided with threads.
The beneficial effects are that: therefore, the screw thread tightening piece can be screwed into the tightening screw hole as much as possible or completely so as to reduce the exposed length of the screw thread tightening piece in the tightening screw hole, thereby avoiding the use of the nut anti-loosening assembly to cause obstacles to the surrounding environment.
Further, the barrel structure has a rotation stop engagement surface for engagement with a corresponding tool, so that an operator can screw the retaining member onto the bolt or the screw by means of the corresponding tool to compress the nut.
The beneficial effects are that: the provision of the rotation-blocking fitting surface on the barrel structure makes it possible for an operator to screw the release-preventing element on the screw or bolt with the aid of a corresponding tool, so that the release-preventing element can exert as great a pressing force as possible on the nut.
The anti-loosening bolt and nut assembly adopts the following technical scheme:
the utility model provides an anti-loosening bolt and nut assembly, includes bolt, nut, still includes nut locking subassembly, nut locking subassembly includes the anticreep piece, has the tubular structure, set up screw thread on the inner peripheral surface of tubular structure for the anticreep piece can be adorned soon on the screw thread section of bolt or screw rod, the one end of tubular structure has the roof pressure structure that is used for the roof pressure nut, and the other end has the bottom plate of fixing at this end orifice department, set up the tight screw hole in top that runs through its wall thickness on the bottom plate, the tight piece of screw thread is used for adorning soon in the tight screw hole in top, the one end of the tight piece of screw thread is for can extending the top of supporting of the terminal surface of the interior support bolt of tubular structure or screw rod, tightly pushes up bottom plate and bolt or screw rod through the.
The beneficial effects are that: when the anti-loosening bolt and nut assembly is used, after the nut is screwed on the corresponding bolt or screw rod, the anti-loosening piece is screwed on one end, exposed out of the nut, of the bolt or screw rod, the jacking structure of the anti-loosening piece is pressed on the nut, the nut is tightly pressed and stopped by the pressing piece, the nut is ensured not to loosen, then the thread tightening piece is screwed in the jacking thread hole towards the bolt or screw rod until the abutting end of the thread tightening piece abuts against the end portion of the bolt or screw rod, in this way, the pressing in the direction opposite to the nut is kept between the threads of the anti-loosening piece and the threads of the bolt or screw rod, the anti-loosening piece is ensured not to loosen, stable and reliable pressing force and stop matching can be provided for the nut, and the bolt and nut assembly is ensured to have reliable fastening effect.
Further, the screwing direction of the anti-falling piece when the anti-falling piece is installed on the bolt or the screw rod is the same as the screwing direction of the thread tightening piece when the thread tightening piece is installed in the tightening threaded hole.
The beneficial effects are that: when the thread tightening piece is screwed in, the friction force between the thread tightening piece and the anti-falling piece can promote the anti-falling piece to be further screwed on the bolt or the screw rod, the anti-falling piece can provide pressing force as large as possible for the nut while the abutting fit of the thread tightening piece and the bolt or the screw rod is completed, and the bolt and nut assembly is ensured to have a reliable fastening effect.
Furthermore, one end of the cylinder structure facing the nut forms the jacking structure.
Has the advantages that: make the structure of anticreep piece simpler, meanwhile, no longer leave the clearance between anticreep piece and the nut, realize utilizing the anticreep will protect the screw thread section of bolt or screw rod for bolt and nut subassembly later stage of being convenient for is dismantled.
Further, the bottom plate seals off the hole at the corresponding end of the cylinder structure, so that the anti-drop part is in a cap-shaped structure.
The beneficial effects are that: after the assembly is completed, the nut anti-loosening component completely covers the bolt or the screw rod exposed out of the thread section of the nut inside the nut anti-loosening component, so that the nut anti-loosening component can completely protect the bolt or the screw rod exposed out of the thread section of the nut, and the bolt and nut component is convenient to disassemble in the later period.
Further, the jacking threaded hole is coaxial with the barrel structure.
The beneficial effects are that: tightly decide the screw hole coaxial with tubular structure for the tight power in top that the anticreep piece received can not incline, realizes more stable anticreep protection, ensures that bolt and nut subassembly has reliable fastening.
Further, the other end of the thread tightening piece is provided with a tool matching structure, the tool matching structure is a sunk groove used for matching with a corresponding tool, and the outer peripheral surface of the thread tightening piece is provided with threads.
The beneficial effects are that: therefore, the screw thread tightening piece can be screwed into the tightening screw hole as much as possible or completely so as to reduce the exposed length of the screw thread tightening piece in the tightening screw hole, thereby avoiding the use of the nut anti-loosening assembly to cause obstacles to the surrounding environment.
Further, the barrel structure has a rotation stop engagement surface for engagement with a corresponding tool, so that an operator can screw the retaining member onto the bolt or the screw by means of the corresponding tool to compress the nut.
The beneficial effects are that: the anti-rotation matching surface is arranged on the cylinder structure, so that an operator can rotatably install the anti-falling part on the bolt or the screw rod by means of a corresponding tool, and the anti-falling part can apply the pressing force as much as possible to the nut.
Further, the thickness of the cylinder structure is smaller than that of the nut.
The beneficial effects are that: the anticreep piece only need realize to the nut compress tightly can, consequently, can be relatively thin with tubular structure setting under the prerequisite that does not influence its function effect to reduce the manufacturing cost of locking bolt and nut subassembly that takes off.
Drawings
FIG. 1 is a view showing a state of use of an anti-loosening bolt and nut assembly according to an embodiment 1 of the present invention;
FIG. 2 is a schematic structural view of a release preventing member according to embodiment 1 of the release preventing bolt and nut assembly of the present invention;
FIG. 3 is a top view of FIG. 2;
FIG. 4 is a schematic view of the construction of the threaded fastener of embodiment 1 of the anti-loosening bolt and nut assembly of the present invention;
the names of the components corresponding to the corresponding reference numerals in the drawings are:
1. a bolt; 2. a nut; 3. an interlayer; 4. a drop-off prevention member; 5. a thread tightening piece; 6. a central threaded hole; 7. a compression surface; 8. a base plate; 9. tightly propping the threaded hole; 10. a planar structure; 11. abutting against the top end; 12. a hexagonal counter bore; 13. a cylindrical structure.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that relational terms such as "first" and "second," and the like, which may be present in the embodiments of the present invention, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the recitation of "comprising an … …" may occur without the exclusion of additional like elements present in the process, method, article, or apparatus that comprises the element.
In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" when they are used are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from specific situations.
In the description of the present invention, unless otherwise specifically stated or limited, the term "provided" may be used in a broad sense, for example, the object of "provided" may be a part of the body, or may be arranged separately from the body and connected to the body, and the connection may be detachable or non-detachable. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from specific situations.
The present invention will be described in further detail with reference to examples.
Embodiment 1 of the anti-loosening bolt and nut assembly of the present invention:
as shown in fig. 1, the anti-dropping bolt-nut assembly comprises a bolt 1 and a nut 2, the interlayer 3 is pressed tightly to realize the fastening connection of two workpieces through the matching of the bolt 1 and the nut 2, and after the screwing of the nut 2 on the bolt 1 is completed, the threaded end of the bolt 1 extends out of the nut 2. In order to prevent the nut 2 from loosening, the lockbolt-nut assembly further comprises a nut loosening prevention assembly.
Specifically, the nut anti-loosening assembly comprises an anti-loosening piece 4 and a thread tightening piece 5, as shown in fig. 2, the anti-loosening piece 4 comprises a tubular structure 13, threads are formed in the inner wall of the tubular structure 13, the center hole of the tubular structure is a central threaded hole 6, and the anti-loosening piece 4 can be screwed on the threaded section of the bolt 1. One end of the tubular structure 13 has a pressing structure for pressing the nut, and in this embodiment, the end of the tubular structure 13 facing the nut directly constitutes the pressing structure, i.e. the end surface of the end of the tubular structure 13 is the pressing surface 7, so that there is no longer a gap between the tubular structure 13 and the nut. In other embodiments, the pressing structure may also be a plurality of pressing blocks disposed on an end surface of the cylindrical structure facing one end of the nut, and the plurality of pressing blocks are uniformly distributed at intervals along the axial direction of the cylindrical structure.
The other end of the cylindrical structure is provided with a bottom plate 8, and a jacking threaded hole 9 is formed in the bottom plate 8. In this embodiment, the bottom plate 8 is a sealing plate for sealing the corresponding end of the central threaded hole 6, in other embodiments, the radial dimension of the bottom plate 8 can be set smaller, and the bottom plate is fixed at the orifice of the central threaded hole 6 through the connecting rib. In this embodiment, the tightening screw hole 9 is coaxial with the tubular structure 13, but in other embodiments, the tightening screw hole may also be offset relative to the tubular structure.
As shown in fig. 3, the retaining element 4 has a flat structure 10 on the outside, which serves as a rotation-stop engagement surface that can be engaged with a corresponding tool in a rotation-stop manner, so that an operator can screw the retaining element 4 onto the bolt 1 with the aid of the corresponding tool.
The structure of the thread tightening piece 5 is as shown in fig. 4, the thread tightening piece 5 is rod-shaped, and the outer peripheral surface thereof is provided with threads, so that the thread tightening piece 5 can be rotatably installed in the tightening threaded hole 9, one end of the thread tightening piece is a supporting end 11 which extends into the central threaded hole 6 to support the end surface of the bolt 1, and the other end of the thread tightening piece is provided with a tool matching structure which is a hexagonal counter bore 12 matched with a hexagonal wrench in the embodiment. The axial length of the thread section on the thread tightening piece is not less than the minimum distance between the end surface of the screw 1 and the bottom plate 8.
During the specific use, screw up nut 2 on bolt 1 earlier, then with anticreep piece 4 screw up in the one end that bolt 1 exposes nut 2, until pressing surface 7 compresses tightly on nut 2, this process can be with the help of corresponding instrument and the cooperation of the locking fitting surface on anticreep piece 4 will prevent that piece 4 screws up on bolt 1, this instrument can be pliers, division board, sleeve etc. then in 5 screw in top tight screw holes 9 of screw thread tightening piece, of course, also can be with a small amount of screw in top tight screw holes 9 pre-installation in advance of screw thread tightening piece 5, then screw up 5 towards bolt 1 with the help of the hexagonal spanner, until top tight bolt 1. Under the tightening action between the thread tightening piece 5 and the bolt 1, the thread in the central threaded hole 6 and the thread on the bolt 1 are pressed in the direction opposite to the nut 2, so that the anti-loosening piece 4 is prevented from loosening, the anti-loosening piece stably applies pressure to the nut 2, and the nut 2 is stopped, and the nut 2 is prevented from loosening.
In this embodiment, the screwing direction of the thread tightening piece 5 in the tightening threaded hole 9 is the same as the screwing direction of the anti-falling piece 4 on the bolt 1, so that when the thread tightening piece 5 is screwed towards the bolt 1, the anti-falling piece 4 can be synchronously screwed in through the friction force between the thread tightening piece 5 and the anti-falling piece 4, and the anti-falling piece 4 is ensured to provide enough pressure for the nut 2. In other embodiments, the screwing direction of the thread tightening piece in the tightening thread hole may be opposite to the screwing direction of the anti-slip piece on the bolt, and when the thread tightening piece is screwed in, the anti-slip piece can be prevented from being unscrewed in the process of screwing in the thread tightening piece by matching the corresponding tool with the anti-slip matching surface on the anti-slip piece.
Moreover, in the embodiment, the outer peripheral surface of the thread tightening piece 5 is provided with external threads, and the tool matching structure is a hexagonal counter bore, so that the thread tightening piece 5 can be completely screwed into the tightening threaded hole 9 by means of a hexagonal wrench, the thread tightening piece 5 can provide enough tightening force for the bolt 1, and then the threads in the central threaded hole 6 and the threads on the bolt 1 are kept under a large pressing force.
As a further optimization, since the anti-slip element 4 only has to perform the pressing and blocking action on the nut 2, the wall thickness of the tubular structure 13 of the anti-slip element is set smaller than the wall thickness of the nut 2, so as to reduce the manufacturing cost of the anti-slip bolt-nut assembly.
In embodiment 2 of the anti-loose bolt and nut assembly of the present invention, the difference between this embodiment and embodiment 1 is that in embodiment 1, the nut is engaged with the bolt, while in this embodiment, the nut is engaged with the screw, two nuts are disposed corresponding to the screw, and two sets of nut anti-loose assemblies are disposed corresponding to the two sets of nuts.
In embodiment 3 of the anti-loosening bolt and nut assembly of the present invention, the difference between this embodiment and embodiment 1 is that the tool engagement structure of the thread tightening member in embodiment 1 is a hexagonal counter bore, and in this embodiment, the tool engagement structure of the thread tightening member is a linear groove, so that the thread tightening member can be screwed into the tightening threaded hole by a linear screwdriver. Of course, in other embodiments, the threaded fastener may also be a bolt.
In the embodiments of the nut anti-loosening assembly of the present invention, the structure and usage of the nut anti-loosening assembly of the present invention are the same as those of the anti-loosening bolt and nut assemblies in the embodiments of the above-mentioned anti-loosening bolt and nut assemblies, and will not be described herein again.
The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention, the scope of the present invention is defined by the appended claims, and all structural changes that can be made by using the contents of the description and the drawings of the present invention are intended to be embraced therein.
Claims (9)
1. The utility model provides a nut locking subassembly that takes off which characterized by includes:
the anti-falling part (4) is provided with a cylindrical structure, the inner circumferential surface of the cylindrical structure is provided with threads, so that the anti-falling part (4) can be screwed on the thread section of the bolt (1) or the screw rod, one end of the cylindrical structure is provided with a jacking structure for jacking the nut (2), the other end of the cylindrical structure is provided with a bottom plate (8) fixed at the hole opening of the end, and the bottom plate (8) is provided with a jacking threaded hole (9) penetrating through the wall thickness of the bottom plate;
the thread tightening piece (5) is used for being rotatably installed in the tightening threaded hole (9), one end of the thread tightening piece (5) is a propping end (11) which can extend into the barrel structure and prop against the end face of the bolt (1) or the screw, and the bottom plate (8) and the bolt (1) or the screw are tightly propped through the thread tightening piece (5).
2. Nut anti-loosening assembly according to claim 1, characterized in that the anti-loosening element (4) is screwed in the same direction when mounted on the bolt (1) or the screw as the threaded tightening element (5) is mounted in the tightening threaded hole (9).
3. -nut anti-loosening assembly according to claim 1 or 2, characterised in that the end of the tubular structure facing the nut (2) constitutes the abutment structure.
4. Nut anti-loosening assembly according to claim 3, characterized in that the base plate (8) closes off the opening at the corresponding end of the barrel structure, so that the anti-loosening element (4) is of a cap-like structure.
5. Anti-loosening assembly according to claim 1 or 2, characterized in that the tightening threaded hole (9) is coaxial with the barrel structure.
6. The nut anti-loosening assembly according to claim 1 or 2, wherein the other end of the thread tightening piece (5) has a tool engagement structure, the tool engagement structure is a counter sink for engaging with a corresponding tool, and the outer circumferential surface of the thread tightening piece (5) is entirely threaded.
7. Nut anti-loosening assembly according to claim 1 or 2, characterized in that the barrel structure has a rotation stop engagement surface for engagement with a corresponding tool, so that an operator can turn the anti-loosening element (4) on the bolt (1) or the screw with the aid of the corresponding tool in order to press the nut (2).
8. An anti-loosening bolt and nut assembly comprising:
a bolt (1);
a nut (2);
the anti-loosening nut is characterized by further comprising an anti-loosening component of the nut (2), wherein the anti-loosening component of the nut (2) is the anti-loosening component of the nut (2) in any one of claims 1 to 7.
9. The anti-loosening bolt and nut assembly according to claim 8, wherein the thickness of the barrel structure is smaller than the thickness of the nut (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011577029.8A CN112576605A (en) | 2020-12-28 | 2020-12-28 | Nut anti-loosening assembly and anti-loosening bolt and nut assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011577029.8A CN112576605A (en) | 2020-12-28 | 2020-12-28 | Nut anti-loosening assembly and anti-loosening bolt and nut assembly |
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|---|---|
| CN112576605A true CN112576605A (en) | 2021-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011577029.8A Pending CN112576605A (en) | 2020-12-28 | 2020-12-28 | Nut anti-loosening assembly and anti-loosening bolt and nut assembly |
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| CN (1) | CN112576605A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113669528A (en) * | 2021-09-01 | 2021-11-19 | 扬中市旭晨精密模锻有限公司 | Flange forging and forging method thereof |
| CN113790203A (en) * | 2021-09-08 | 2021-12-14 | 海盐远洋标准件有限公司 | Eccentricity-adjustable eccentric bolt for automobile engine |
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| US5071300A (en) * | 1991-02-15 | 1991-12-10 | Mcgard, Inc. | Shrouded jam locknut |
| US6264284B1 (en) * | 1997-01-24 | 2001-07-24 | Wheelsure Limited | Wheel nut assembly |
| WO2003104661A2 (en) * | 2002-06-06 | 2003-12-18 | Nugent, Brian | Safety nut and bolt |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113669528A (en) * | 2021-09-01 | 2021-11-19 | 扬中市旭晨精密模锻有限公司 | Flange forging and forging method thereof |
| CN113790203A (en) * | 2021-09-08 | 2021-12-14 | 海盐远洋标准件有限公司 | Eccentricity-adjustable eccentric bolt for automobile engine |
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