CN113323956A - Bolt and nut assembly capable of preventing loosening - Google Patents
Bolt and nut assembly capable of preventing loosening Download PDFInfo
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- CN113323956A CN113323956A CN202110592710.8A CN202110592710A CN113323956A CN 113323956 A CN113323956 A CN 113323956A CN 202110592710 A CN202110592710 A CN 202110592710A CN 113323956 A CN113323956 A CN 113323956A
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- screw
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- screw rod
- core
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 34
- 229910052742 iron Inorganic materials 0.000 claims description 17
- 125000006850 spacer group Chemical group 0.000 claims description 10
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000002265 prevention Effects 0.000 claims 7
- 238000009434 installation Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 4
- 235000017166 Bambusa arundinacea Nutrition 0.000 abstract description 2
- 235000017491 Bambusa tulda Nutrition 0.000 abstract description 2
- 241001330002 Bambuseae Species 0.000 abstract description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 abstract description 2
- 239000011425 bamboo Substances 0.000 abstract description 2
- 230000001360 synchronised effect Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 239000004519 grease Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
Images
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
- F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
- F16B39/28—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by special members on, or shape of, the nut or bolt
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/04—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for assembling or disassembling parts
- B23P19/06—Screw or nut setting or loosening machines
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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
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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
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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
- F16B37/00—Nuts or like thread-engaging members
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Connection Of Plates (AREA)
Abstract
The invention discloses a bolt and nut assembly capable of preventing loosening, relates to the technical field of thread assembly, and solves the problems that the bolt and nut assembly used at present is mainly locked and fixed in a loosening-preventing mode through a pin slot or double nuts, the fixing effect is general, and the function of quickly screwing the double nuts is not achieved. A bolt-nut assembly for preventing loosening comprises a screw rod; the outer side of the screw rod is fixedly provided with a main nut through threaded connection; the outer side of the screw rod is fixedly provided with an auxiliary nut through threaded connection, and the auxiliary nut is positioned below the main nut; a core screw is arranged in the screw in a sliding manner; the top of screw rod is fixed to be provided with the core nut, through being provided with the installation section of thick bamboo, provides the fixed function of synchronous revolution for main nut and auxiliary nut, can rotate locking main nut and auxiliary nut in step as the lever through the push rod, compares that single screwing up locks female more stable, provides convenient assembly function for nut component.
Description
Technical Field
The invention relates to the technical field of thread assembly, in particular to a bolt and nut assembly capable of preventing loosening.
Background
The locknut and the self-tightening nut are common fastening locknuts and comprise mechanical locknut, riveting locknut, friction locknut, structural locknut and the like; the locknut is a nut, is screwed together with a bolt or a screw rod to play a role in fastening, is an original piece which must be used by all production and manufacturing machines, is a part for tightly connecting mechanical equipment, and can be connected together through an inner thread, the locknut with the same specification and the screw.
Through search, for example, patent No. CN106499714B discloses a method for connecting bolt assemblies that are never loosened, and the purpose is to improve the reliability and safety of bolt connection based on strong practicability. The bolt assembly is arranged in a loose-proof way, the bolt assembly is mechanically connected with the bolt and the nut, so that the bolt and the nut are indirectly connected and fixed in the circumferential direction, and the end part of the bolt is provided with a hole for installing a cotter pin, so that the bolt assembly is prevented from falling off in the axial direction and is convenient to disassemble and assemble; the bolt components are fewer in number, simple in structure, convenient to produce and manufacture, convenient to disassemble and assemble in the maintenance process and reusable in a normal state; the bolt component connection realizes the connection characteristic of never loosening, fundamentally solves the loosening problem of bolt connection, is suitable for being used in the environment with grease and high-frequency vibration and other important environments and special conditions, can not cause property loss and personal casualty accidents due to the loosening of bolt connection, and opens up a brand-new development road for the use of high-strength bolts.
For another example, patent No. CN103807271B discloses a self-locking combination nut for preventing nut loosening, which includes a slotted nut and an auxiliary nut, wherein the slotted nut includes a slotted nut body, one end of the slotted nut body is provided with a spring plate, and the spring plate is provided with a plurality of open slots; the auxiliary nut comprises an auxiliary nut body, a boss extends out of one end of the auxiliary nut body, internal threads are arranged inside the auxiliary nut body and the boss, a contraction port is further formed in the boss, a wedge-shaped groove is formed in the other end of the auxiliary nut body, and the wedge-shaped groove is installed in a matched mode with the spring piece. According to the self-locking combined nut, the contraction opening structure is arranged at the opening end of the auxiliary nut, the wedge-shaped groove at the bottom of the auxiliary nut is tightly attached to the spring piece of the slotted nut in the assembling process, friction force is generated through interaction, the acting force for loosening the nut is overcome, the self-locking nut assembly can be more firmly connected with a bolt, and the phenomenon that the self-locking nut is loosened is reduced.
However, the bolt and nut assembly that uses at present mainly carries out locking fixedly through keyway or two nut locking, and fixed effect is general, does not possess the function of screwing up two nuts fast, does not possess the supplementary reinforced structure of further controlling two nut positions, and the assembly is inconvenient, consequently, unsatisfied current demand, to this we have proposed a bolt and nut assembly that prevents to become flexible.
Disclosure of Invention
Problem (A)
The invention aims to provide a bolt-nut assembly capable of preventing loosening, and aims to solve the problems that the existing bolt-nut assembly in the background art is mainly locked and fixed in a loosening-preventing mode through a pin slot or a double nut, the fixing effect is general, the bolt-nut assembly does not have the function of quickly screwing the double nut, does not have an auxiliary reinforcing structure for further controlling the position of the double nut, and is inconvenient to assemble.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: a bolt-nut assembly for preventing loosening comprises a screw rod; the outer side of the screw rod is fixedly provided with a main nut through threaded connection; the outer side of the screw rod is fixedly provided with an auxiliary nut through threaded connection, and the auxiliary nut is positioned below the main nut; a core screw is arranged in the screw in a sliding manner; the top of the screw is fixedly provided with a core nut.
Preferably, the screw further comprises a screw end; the top of the screw is integrally provided with a screw end, and the edge of the bottom of the screw end is of a wafer structure; the top of the screw rod end is of a regular hexagon structure, a cylindrical groove is formed in the position, penetrating through the inner side of the top of the screw rod end, of five sixths of the height of the screw rod, and the top of the cylindrical groove is of a shoulder structure; and the part of the cylindrical groove on the inner side of the screw rod penetrates through two sides of the screw rod and is provided with a strip-shaped groove.
Preferably, the main nut further comprises a rubber sheet; the bottom of the main nut is of a regular hexagon structure; the top of the main nut is of a wafer structure, and six groups of fan-shaped grooves are formed in the periphery of the top of the wafer structure; rubber sheets are fixedly arranged in the fan-shaped grooves on the side of the top of the main nut through bonding, and the heights of the rubber sheets exceed the depths of the fan-shaped grooves; and a cylindrical groove is formed in the middle of the bottom of the main nut.
Preferably, the auxiliary nut is of a T-shaped structure, a boss structure integrally extends from the middle of the top of the auxiliary nut, and the boss structure at the top of the auxiliary nut can be assembled and arranged in the cylindrical groove at the bottom of the main nut through clearance fit; the height of the boss structure at the top of the auxiliary nut is two thirds of the depth of the cylindrical groove at the bottom of the main nut; the sides of the regular hexagon structures at the main nut, the auxiliary nut and the screw rod end are equal; the outer ends of the main nut and the auxiliary nut can be inserted into the mounting cylinder through clearance fit.
Preferably, the core screw further comprises a round sliding seat, a telescopic groove and a spacer block; the length of the core screw is consistent with that of the screw; a round sliding seat is integrally arranged at the bottom of the core screw rod; the circular sliding seat can be arranged in an internal cylindrical groove of the screw rod in a sliding manner through clearance fit; telescopic grooves are formed in the middles of the two sides of the circular sliding seat, and spacing blocks are integrally arranged at the inner ends of the telescopic grooves; cylindrical grooves are uniformly formed in the two sides of the spacer block; the telescopic grooves are all internally provided with triangular buckles in a sliding mode through clearance fit.
Preferably, the triangular buckle further comprises a T-shaped hole; the triangular buckle is of an inverted wedge-shaped structure, and T-shaped holes are formed in the outer side inclined plane structures of the triangular buckle and penetrate through the inner end of the triangular buckle; the inner sides of the T-shaped holes are provided with reset rods in a sliding manner; the outer end of the reset rod is of a wafer structure, and the wafer structure can be arranged in the wide diameter of the T-shaped hole in a sliding mode; the middle of the reset rod is of a rod-shaped structure, the inner end of the reset rod is of a threaded structure, and the reset rod penetrates through the T-shaped hole sleeve to be sleeved with the spring and is fixedly arranged in the threaded cylinders on two sides of the spacer block through threaded connection.
Preferably, the core nut further comprises a frame rod, an iron rod and a magnetic sheet; the main body of the core nut is a T-shaped threaded cylinder, the outer side of the bottom of the core nut is fixedly provided with a bearing through interference fit, and the bearing is fixedly arranged in a shoulder structure at the inner end of the top of the screw rod end through interference fit; two groups of hack levers are integrally arranged at the tops of two sides of the core nut, and iron rods are rotatably arranged at the tops of the hack levers through hinged connection; the iron rod can rotate for 0-90 degrees through the limiting structure; the magnetic sheets are fixedly arranged at the bottom of the outer side of the frame rod.
Preferably, the mounting cylinder further comprises a nut groove and a push rod; the inner side of the top of the mounting cylinder is provided with a nut groove, and the depth of the nut groove is the sum of the heights of the main nut and the auxiliary nut; a round hole is formed in the middle of the bottom of the nut groove; one side integral type of installation section of thick bamboo is provided with the push rod.
(III) advantageous effects
The invention provides a bolt-nut assembly capable of preventing loosening, which is characterized in that an installation barrel is arranged to provide a synchronous rotating and fixing function for a main nut and an auxiliary nut, the main nut and the auxiliary nut can be synchronously rotated and locked by taking a push rod as a lever, the bolt-nut assembly is more stable compared with a single nut, a convenient assembling function is provided for the nut assembly, and meanwhile, six groups of rubber sheets are arranged at the top of the main nut, so that the friction force of the main nut is increased, the main nut can be better prevented from sliding, and the stability of the main nut is increased.
Secondly, the setting of circle slide and core screw rod provides the triple fixed function for the subassembly, and the both sides of circle slide all slide and be provided with the triangle and detain, and the triangle is detained all can through the spring bounce-back simultaneously, utilizes the triangle to detain and can further fix main nut, has increased the stable ability of subassembly.
Moreover, the iron rod provides a reinforcing function for the core screw rod, the main nut can be further locked by utilizing the iron rod to drive the core nut to rotate, higher locking capacity is provided for the nut, the iron rod can be automatically fixed by matching with the magnetic sheet, no obstruction can be caused when the iron rod is not used, and the iron rod can be used as a lever to quickly lock the core screw rod; through triple locking and fixing, the assembly can be conveniently applied to assemblies with high precision requirements.
Drawings
FIG. 1 is a schematic perspective view of an embodiment of the present invention;
FIG. 2 is a schematic structural view of an assembly mode in an embodiment of the present invention;
FIG. 3 is a partial perspective bottom view of an embodiment of the present invention;
FIG. 4 is a schematic perspective exploded view of an embodiment of the present invention;
FIG. 5 is a schematic perspective view of a screw according to an embodiment of the present invention;
FIG. 6 is a schematic bottom view of a main nut according to an embodiment of the present invention;
FIG. 7 is a schematic perspective view of a round seat according to an embodiment of the present invention;
FIG. 8 is a perspective view of a core nut in accordance with an embodiment of the present invention;
in fig. 1 to 8, the correspondence between the part names or lines and the reference numbers is:
1. a screw; 101. a screw end; 2. a main nut; 201. a rubber sheet; 3. a secondary nut; 4. a core screw; 401. a circular slide seat; 402. a telescopic groove; 403. a spacer block; 5. a triangular buckle; 501. a T-shaped hole; 6. a reset lever; 7. a core nut; 701. a frame bar; 702. an iron rod; 703. a magnetic sheet; 8. mounting the cylinder; 801. a nut groove; 802. a push rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1 to 8, an embodiment of the present invention includes: a bolt and nut assembly for preventing loosening comprises a screw rod 1; wherein, the screw 1 also comprises a screw end 101; the top of the screw 1 is integrally provided with a screw end 101, and the bottom edge of the screw end 101 is of a wafer structure; the top of the screw end 101 is of a regular hexagon structure, a cylindrical groove is formed in the position, where the inner side of the top of the screw end 101 penetrates to five sixths of the height of the screw 1, and the top of the cylindrical groove is of a shoulder structure; the part of the cylindrical groove on the inner side of the screw rod 1 penetrates through the two sides of the screw rod 1 and is provided with a strip-shaped groove; the outer side of the screw rod 1 is fixedly provided with a main nut 2 through threaded connection; wherein, the main nut 2 also comprises a rubber sheet 201; the bottom of the main nut 2 is of a regular hexagon structure; the top of the main nut 2 is of a wafer structure, and six groups of fan-shaped grooves are formed in the periphery of the top of the wafer structure; rubber sheets 201 are fixedly arranged in the fan-shaped grooves on the side of the top of the main nut 2 through bonding, and the heights of the rubber sheets 201 exceed the depths of the fan-shaped grooves; a cylindrical groove is formed in the middle of the bottom of the main nut 2; the outer side of the screw rod 1 is fixedly provided with an auxiliary nut 3 through threaded connection, and the auxiliary nut 3 is positioned below the main nut 2; the auxiliary nut 3 is of a T-shaped structure, a boss structure integrally extends from the middle of the top of the auxiliary nut 3, and the boss structure at the top of the auxiliary nut 3 can be assembled and arranged in a cylindrical groove at the bottom of the main nut 2 through clearance fit; the height of the boss structure at the top of the auxiliary nut 3 is two thirds of the depth of the cylindrical groove at the bottom of the main nut 2; the sides of the regular hexagon structures of the main nut 2, the auxiliary nut 3 and the screw rod end 101 are equal; the outer ends of the main nut 2 and the auxiliary nut 3 can be inserted into the mounting cylinder 8 through clearance fit; a core screw rod 4 is arranged inside the screw rod 1 in a sliding manner; the core screw 4 further comprises a round sliding seat 401, a telescopic groove 402 and a spacer 403; the length of the core screw 4 is consistent with that of the screw 1; the bottom of the core screw rod 4 is integrally provided with a round sliding seat 401; the circular sliding seat 401 can be arranged in an internal cylindrical groove of the screw rod 1 in a sliding manner through clearance fit; the middle parts of two sides of the round sliding seat 401 are both provided with telescopic grooves 402, and the inner ends of the telescopic grooves 402 are integrally provided with spacing blocks 403; cylindrical grooves are uniformly formed in the two sides of the spacer blocks 403; triangular buckles 5 are arranged in the telescopic grooves 402 in a sliding manner in a clearance fit manner; wherein, the triangular buckle 5 also comprises a T-shaped hole 501; the triangular buckle 5 is of an inverted wedge-shaped structure, and T-shaped holes 501 are formed in the outer side inclined plane structure of the triangular buckle 5 and penetrate through the inner end of the triangular buckle 5; the inner sides of the T-shaped holes 501 are provided with reset rods 6 in a sliding manner; the outer end of the reset rod 6 is of a wafer structure, and the wafer structure can be arranged in the wide diameter of the T-shaped hole 501 in a sliding mode; the middle of the reset rod 6 is of a rod-shaped structure, the inner end of the reset rod 6 is of a threaded structure, and the reset rod 6 penetrates through the T-shaped hole 501, is sleeved with a spring and is fixedly arranged in the threaded cylinders on the two sides of the spacer block 403 through threaded connection; the top of the screw 1 is fixedly provided with a core nut 7.
Wherein, the core nut 7 also comprises a hack lever 701, an iron bar 702 and a magnetic sheet 703; the main body of the core nut 7 is a T-shaped threaded cylinder, the outer side of the bottom of the core nut 7 is fixedly provided with a bearing through interference fit, and the bearing is fixedly arranged in a shoulder structure at the inner end of the top of the screw rod end 101 through interference fit; two groups of hack levers 701 are integrally arranged at the tops of two sides of the core nut 7, and iron rods 702 are rotatably arranged at the tops of the hack levers 701 through hinged connection; the iron rod 702 can rotate 0-90 degrees through the limiting structure; the magnetic sheets 703 are fixedly arranged at the bottom of the outer side of the frame rod 701.
Wherein, the mounting cylinder 8 also comprises a nut groove 801 and a push rod 802; a nut groove 801 is formed in the inner side of the top of the mounting cylinder 8, and the depth of the nut groove 801 is the sum of the heights of the main nut 2 and the auxiliary nut 3; a round hole is formed in the middle of the bottom of the nut groove 801; one side of the mounting cylinder 8 is integrally provided with a push rod 802.
The working principle is as follows: when the nut fixing device is used, the screw rod 1 penetrates through a component to be fixed, the main nut 2 and the auxiliary nut 3 are manually and rotatably arranged outside the screw rod 1, the main nut 2 and the auxiliary nut 3 are twisted to be close to each other, the horizontal positions of the side surfaces of the main nut 2 and the auxiliary nut 3 are the same, the installation cylinder 8 is sleeved outside the main nut 2 and the auxiliary nut 3, the push rod 802 is rotated, the installation cylinder 8 is used for driving the main nut 2 and the auxiliary nut 3 to synchronously rotate for fixing, after the main nut 2 is fastened, the installation cylinder 8 moves outwards, the auxiliary nut 3 is continuously screwed by the installation cylinder 8 for fixing, and the main nut 2 and the auxiliary nut 3 are fixedly attached to each other; pushing the core screw rod 4 to the inside of the screw rod 1, and enabling the position of the triangular buckle 5 to penetrate through the main nut 2 so that the triangular buckle 5 is positioned in the internal interval between the main nut 2 and the auxiliary nut 3; then, the iron rod 702 is unfolded to both sides, the core nut 7 is rotated, the core screw 4 is screwed by the core nut 7, the main nut 2 is tightened by the core screw 4 for further fixation, and after fixation, the iron rod 702 is reset and fixed by the magnetic sheet 703.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (8)
1. The utility model provides a prevent not hard up bolt and nut subassembly which characterized in that: comprises a screw (1); the outer side of the screw rod (1) is fixedly provided with a main nut (2) through threaded connection; the bottom of the main nut (2) is of a regular hexagon structure; the top of the main nut (2) is of a wafer structure, and six groups of sector grooves are formed in the periphery of the top of the wafer structure; the outer side of the screw rod (1) is fixedly provided with an auxiliary nut (3) through threaded connection, and the auxiliary nut (3) is positioned below the main nut (2); a core screw (4) is arranged in the screw (1) in a sliding manner; the core screw (4) also comprises a round sliding seat (401); the length of the core screw (4) is consistent with that of the screw (1); the bottom of the core screw (4) is integrally provided with a round sliding seat (401); the round sliding seat (401) can be arranged in an internal cylindrical groove of the screw rod (1) in a sliding mode through clearance fit; the top of the screw rod (1) is fixedly provided with a core nut (7).
2. A loosening prevention bolt and nut assembly according to claim 1, wherein: the screw (1) also comprises a screw end (101); the top of the screw (1) is integrally provided with a screw end (101), and the bottom edge of the screw end (101) is of a wafer structure; the top of the screw rod end (101) is of a regular hexagon structure, a cylindrical groove is formed in the position, penetrating through the inner side of the top of the screw rod end (101), of five sixths of the height of the screw rod (1), and the top of the cylindrical groove is of a shoulder structure; and a strip-shaped groove is formed in the part of the cylindrical groove on the inner side of the screw rod (1) which penetrates through the two sides of the screw rod (1).
3. A loosening prevention bolt and nut assembly according to claim 1, wherein: the main nut (2) also comprises a rubber sheet (201); rubber sheets (201) are fixedly arranged in the side fan-shaped grooves at the top of the main nut (2) through bonding, and the heights of the rubber sheets (201) exceed the depths of the fan-shaped grooves; the middle of the bottom of the main nut (2) is provided with a cylindrical groove.
4. A loosening prevention bolt and nut assembly according to claim 1, wherein: the auxiliary nut (3) is of a T-shaped structure, a boss structure integrally extends from the middle of the top of the auxiliary nut (3), and the boss structure at the top of the auxiliary nut (3) can be assembled and arranged in a cylindrical groove at the bottom of the main nut (2) through clearance fit; the height of the boss structure at the top of the auxiliary nut (3) is two thirds of the depth of the cylindrical groove at the bottom of the main nut (2); the sides of the regular hexagon structures of the main nut (2), the auxiliary nut (3) and the screw rod end (101) are equal; the outer ends of the main nut (2) and the auxiliary nut (3) can be inserted into the mounting cylinder (8) through clearance fit.
5. A loosening prevention bolt and nut assembly according to claim 1, wherein: the core screw rod (4) also comprises a telescopic groove (402) and a spacer block (403); the middle parts of two sides of the round sliding seat (401) are both provided with telescopic grooves (402), and the inner ends of the telescopic grooves (402) are integrally provided with spacing blocks (403); cylindrical grooves are uniformly formed in the two sides of the spacer block (403); triangular buckles (5) are arranged in the telescopic grooves (402) in a sliding mode through clearance fit.
6. A loosening prevention bolt and nut assembly according to claim 5, wherein: the triangular buckle (5) also comprises a T-shaped hole (501); the triangular buckle (5) is of an inverted wedge-shaped structure, and T-shaped holes (501) are formed in the outer side inclined plane structure of the triangular buckle (5) and penetrate through the inner end of the triangular buckle (5); the inner sides of the T-shaped holes (501) are provided with reset rods (6) in a sliding manner; the outer end of the reset rod (6) is of a wafer structure, and the wafer structure can be arranged in the wide diameter of the T-shaped hole (501) in a sliding mode; the middle of the reset rod (6) is of a rod-shaped structure, the inner end of the reset rod (6) is of a threaded structure, and the reset rod (6) penetrates through the T-shaped hole (501) to be sleeved with the spring and is fixedly arranged in the threaded cylinders on two sides of the spacer block (403) through threaded connection.
7. A loosening prevention bolt and nut assembly according to claim 1, wherein: the core nut (7) also comprises a rack rod (701), an iron rod (702) and a magnetic sheet (703); the main body of the core nut (7) is a T-shaped threaded cylinder, the outer side of the bottom of the core nut (7) is fixedly provided with a bearing through interference fit, and the bearing is fixedly arranged in a shoulder structure at the inner end of the top of the screw rod end (101) through interference fit; two groups of frame rods (701) are integrally arranged at the tops of two sides of the core nut (7), and iron rods (702) are rotatably arranged at the tops of the frame rods (701) through hinged connection; the iron rod (702) can rotate for 0-90 degrees through a limiting structure; the magnetic sheets (703) are fixedly arranged at the bottom of the outer side of the frame rod (701).
8. A loosening prevention bolt and nut assembly according to claim 4, wherein: the mounting cylinder (8) further comprises a nut groove (801) and a push rod (802); a nut groove (801) is formed in the inner side of the top of the mounting cylinder (8), and the depth of the nut groove (801) is the sum of the heights of the main nut (2) and the auxiliary nut (3); a round hole is formed in the middle of the bottom of the nut groove (801); one side of the mounting cylinder (8) is integrally provided with a push rod (802).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110592710.8A CN113323956A (en) | 2021-05-28 | 2021-05-28 | Bolt and nut assembly capable of preventing loosening |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110592710.8A CN113323956A (en) | 2021-05-28 | 2021-05-28 | Bolt and nut assembly capable of preventing loosening |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113323956A true CN113323956A (en) | 2021-08-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110592710.8A Pending CN113323956A (en) | 2021-05-28 | 2021-05-28 | Bolt and nut assembly capable of preventing loosening |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113323956A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115045272A (en) * | 2022-06-23 | 2022-09-13 | 中冶建工集团有限公司 | Novel steel sleeve connecting structure and construction method |
| CN117890235A (en) * | 2024-03-14 | 2024-04-16 | 航天精工股份有限公司 | Torsion resistance test device for bolt and nut assembly |
-
2021
- 2021-05-28 CN CN202110592710.8A patent/CN113323956A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115045272A (en) * | 2022-06-23 | 2022-09-13 | 中冶建工集团有限公司 | Novel steel sleeve connecting structure and construction method |
| CN117890235A (en) * | 2024-03-14 | 2024-04-16 | 航天精工股份有限公司 | Torsion resistance test device for bolt and nut assembly |
| CN117890235B (en) * | 2024-03-14 | 2024-06-11 | 航天精工股份有限公司 | Torsion resistance test device for bolt and nut assembly |
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