CN110873114A - Sliding buckle type locknut - Google Patents
Sliding buckle type locknut Download PDFInfo
- Publication number
- CN110873114A CN110873114A CN201911238371.2A CN201911238371A CN110873114A CN 110873114 A CN110873114 A CN 110873114A CN 201911238371 A CN201911238371 A CN 201911238371A CN 110873114 A CN110873114 A CN 110873114A
- Authority
- CN
- China
- Prior art keywords
- nut
- cylinders
- bolt
- thread
- slide fastener
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000001125 extrusion Methods 0.000 claims abstract description 22
- 230000005489 elastic deformation Effects 0.000 claims abstract description 6
- 230000002265 prevention Effects 0.000 claims description 4
- 230000003993 interaction Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 208000029152 Small face Diseases 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000011084 recovery Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
Images
Classifications
-
- 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
- F16B39/12—Locking of screws, bolts or nuts in which the locking takes place after screwing down by means of locknuts
- F16B39/122—Locking of screws, bolts or nuts in which the locking takes place after screwing down by means of locknuts foreseen with mating surfaces inclined, i.e. not normal, to the bolt axis
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
- Connection Of Plates (AREA)
Abstract
The invention discloses a slip buckle type locknut which is mainly used in the field of machinery; the locking nut has the interlocking function, is simple to manufacture and convenient to use, and can be reused; it is composed of a nut A and a nut B; the working principle is as follows: the nut B is screwed on the bolt firstly, the lower end of the nut B is pressed tightly on a workpiece, then the extrusion part of the nut A is screwed on the bolt downwards, the upper ends of a plurality of cylinders of the nut A slide along the lower ends of the thread sections of a plurality of slide fastener convex ribs of the nut B and extrude each other to generate elastic deformation, after the plurality of cylinders of the nut A enter the semi-arc sections of the corresponding plurality of slide fastener convex ribs of the nut B, the plurality of cylinders of the nut A generate elastic recovery again, the nut A and the nut B realize interlocking, meanwhile, the extrusion part of the nut A extrudes a plurality of arc sections of the nut B, the internal threads B of the plurality of arc sections extrude the external threads of the bolt again, the external threads of the bolt are tightly hooped, and the anti-loosening purpose is achieved.
Description
Technical Field
The invention is mainly used for fixing components in the mechanical field or the building field, and is particularly suitable for fixing components which frequently vibrate.
Background
The currently used or patented locknuts cannot be interlocked, and finally the nuts are loosened from the bolts; some nuts have the function of anti-loosening and locking, but need to be additionally provided with accessories, and are inconvenient to manufacture and use.
Disclosure of Invention
The invention solves the problems, the interlocking nut has the interlocking function, the screwed nut cannot be loosened from the bolt, no additional accessory is required to be added, the manufacture and the use are convenient, and the locknut can be reused; it is composed of a nut A (1) and a nut B (6); the nut A (1) is composed of a nut body A (2), an extrusion part (3) and a plurality of cylinders (4), wherein the nut body A (2) is provided with an internal thread A (5), the internal thread A (5) is matched with an external thread of a bolt (11), the lower end of the nut body A (2) is the extrusion part (3), the extrusion part (3) is a conical ring with a small upper part and a large lower part, the inner side surface of the conical ring is provided with the plurality of cylinders (4), and the position of each cylinder (4) corresponds to the position of a slide buckle rib (10) of the nut B (6); the nut B (6) is composed of a nut body B (7) and a slide fastener convex rib (10), the nut body B (7) is in a round table shape with a small top and a big bottom, a through hole is arranged in the middle, an inner wall of the through hole is provided with an inner thread B (8), the inner thread B (8) is matched with an outer thread of a bolt (11), the nut body B (7) is processed with a plurality of uniformly distributed grooves (9), the openings of the grooves (9) are upward, the plurality of grooves (9) divide the nut body B (7) into a plurality of arc sections (13), each arc section (13) is provided with a plurality of slide fastener convex ribs (10), each slide fastener convex rib (10) is composed of a thread section (14) and a semi-arc section (15), the inclination of the thread section (14) is consistent with the inclination of the inner thread A (5), the lower parts of the plurality of grooves (9) of the nut body B (7) are integral bottom, the inclination of the inner side face of the extrusion part (3) of the nut A (1) is larger than the inclination of the, a plurality of cylinders (4) of the nut A (1) and a plurality of slide buckle convex ribs (10) of the nut B (6) are in one-to-one correspondence; the working principle of the locknut is as follows: firstly screwing a nut B (6) on a bolt (11) and enabling the lower end of the nut B (6) to press a workpiece (12), wherein the small face of the truncated cone shape faces upwards, then screwing an extrusion part (3) of the nut A (1) on the bolt (11) downwards, in the screwing process of the nut A (1), a plurality of cylinders (4) of the nut A (1) and thread sections (14) of a plurality of slide fastener convex ribs (10) of the nut B (6) are mutually attached, the nuts A (1) are continuously screwed, the upper ends of a plurality of cylinders (4) of the nut A (1) slide along the lower ends of the thread sections (14) of a plurality of slide fastener convex ribs (10) of the nut B (6) and are mutually extruded to generate elastic deformation, and when the plurality of cylinders (4) of the nut A (1) enter semicircular arc sections (15) of a plurality of slide fastener convex ribs (10) corresponding to the nut B (6), the plurality of elastic cylinders (4) of the nut A (1) are recovered, at the moment, the semi-circular arc sections (15) of the plurality of slide buckle convex ribs (10) of the nut B (6) buckle the plurality of cylinders (4) of the nut A (1), meanwhile, the lower end of the nut A (1) tightly props against a workpiece (12), the nut B (6) is completely wrapped in the extrusion part (3) of the nut A (1), the nut A (1) and the nut B (6) are interlocked, simultaneously, the inclination of the inner side surface of the extrusion part (3) of the nut A (1) is larger than that of the outer side surface of the bolt body B (7) of the nut B (6), the extrusion part (3) of the nut A (1) extrudes the plurality of circular arc sections (13) of the nut B (6), the internal threads B (8) of the plurality of circular arc sections (13) extrude the external threads of the bolt (11), and the external threads of the bolt (11) are tightly hooped, so that the friction force between the internal threads B (8) of the plurality of the circular arc sections (13) and the external threads of the bolt (11) is, the purpose of preventing looseness is achieved; under the action of vibration load, a fixed workpiece (12) firstly loosens the nut A (1), a plurality of slide fastener convex ribs (10) of the nut B (6) restrict a plurality of cylinders (4) of the nut A (1) to prevent the nut A (1) from loosening, the nut A (1) which is not loosened tightly hoops the nut B (6) to ensure that the nut B (6) is not loosened, and the purpose of loosening prevention is realized through interaction and mutual restriction; if the locknut needs to be loosened, only the nut A (1) needs to be rotated reversely, the semi-circular arc surfaces of the cylinders (4) of the nut A (1) and the slide fastener convex ribs (10) of the nut B (6) are mutually extruded to generate elastic deformation and slide along the lower end of the thread section (14) of the nut B (6), then the nut A (1) continues to be rotated reversely, the nut A (1) and the nut B (6) are loosened, and then the nut A (1) and the nut B (6) are screwed out for reutilization.
Drawings
Description of reference numerals: 1-nut A, 2-screw body A, 3-extrusion part, 4-cylinder, 5-internal thread A, 6-nut B, 7-screw body B, 8-internal thread B, 9-groove, 10-slide buckle convex rib, 11-bolt, 12-workpiece, 13-arc segment, 14-thread segment and 15-semi-arc segment.
Fig. 1 is a vertical sectional view of the nut a.
Fig. 2 is a sectional view a-a of the nut B.
Fig. 3 is an elevation view of the nut B.
Fig. 4 is a plan view of the nut B.
Fig. 5 is a bottom view of the nut a.
Fig. 6 is an assembly diagram of the nut a, the nut B, and the bolt.
Fig. 7 is a partial perspective view of the nut a and the nut B after being tightened with the bolt.
Fig. 8 is a partial perspective view of fig. 7.
Fig. 9 is a schematic view of the cylinder 4 of nut a1 sliding within the snap rib 10 of nut B.
Detailed Description
Referring to fig. 1 to 9, first, nut B6 is screwed onto bolt 11, and the lower end of nut B6 is pressed against workpiece 12, the truncated cone-shaped facet faces upward, then pressing part 3 of nut a1 is screwed onto bolt 11 downward, during the process of screwing nut a1, the plurality of cylinders 4 of nut a1 and the threaded sections 14 of the plurality of sliding-fastening ribs 10 of nut B6 are mutually adhered, cylinder a1 is screwed downward, the upper ends of the plurality of cylinders 4 of nut a1 slide along the lower ends of the threaded sections 14 of the plurality of sliding-fastening ribs 10 of nut B6 and are mutually pressed to be elastically deformed, when the plurality of cylinders 4 of nut a1 enter the corresponding semicircular arc sections 15 of the plurality of sliding-fastening ribs 10 of nut B6, the plurality of cylinders 4 of nut a1 are elastically restored again, and at this time, the semicircular arc sections 15 of sliding-fastening ribs 10 of nut B6 fasten the plurality of cylinders 4 of nut a1, and push against the lower end of nut a1, the nut B6 is completely wrapped in the extrusion part 3 of the nut A1, the nut A1 and the nut B6 are interlocked, meanwhile, the inclination of the inner side surface of the extrusion part 3 of the nut A1 is larger than that of the outer side surface of the body B7 of the nut B6, the extrusion part 3 of the nut A1 extrudes the plurality of arc sections 13 of the nut B6, the internal threads B (8) of the plurality of arc sections 13 extrude the external threads of the bolt 11, and the external threads of the bolt 11 are tightly clamped, so that the friction force between the internal threads B8 of the plurality of arc sections 13 and the external threads of the bolt 11 is greatly increased, and the purpose of looseness prevention is achieved; under the action of vibration load, the fixed workpiece 12 is loosened firstly by the nut A1, the plurality of slide buckle convex ribs 10 of the nut B6 restrain the plurality of columns 4 of the nut A1 to prevent the nut A1 from loosening, the nut A1 which is not loosened tightly hoops the nut B6 to prevent the nut B6 from loosening, and the purpose of loosening prevention is realized by interaction and mutual restriction; if the locknut needs to be loosened, only the nut A1 needs to be rotated reversely, the semi-circular arc surfaces of the cylinders 4 of the nut A1 and the slide buckle ribs 10 of the nut B6 are mutually extruded to generate elastic deformation and slide along the lower end of the thread section 14 of the nut B6, then the nut A1 continues to be rotated reversely, the nut A1 and the nut B6 are loosened, and then the nut A1 and the nut B6 are screwed out for reuse; referring to fig. 3, the pitch of the thread segments 14 is consistent with the pitch of the internal threads a5, and the purpose of this design is: as the internal threads a5 of the nut a1 slide along the external threads of the bolt 11, the cylinder 4 of the nut a1 likewise slides along the lower ends of the threaded segments 14 of the snap ribs 10 of the nut B6, in perfect step.
Claims (1)
1. The utility model provides a slip knot formula locknut which characterized by: it is composed of a nut A (1) and a nut B (6); the nut A (1) is composed of a nut body A (2), an extrusion part (3) and a plurality of cylinders (4), wherein the nut body A (2) is provided with an internal thread A (5), the internal thread A (5) is matched with an external thread of a bolt (11), the lower end of the nut body A (2) is the extrusion part (3), the extrusion part (3) is a conical ring with a small upper part and a large lower part, the inner side surface of the conical ring is provided with the plurality of cylinders (4), and the position of each cylinder (4) corresponds to the position of a slide buckle rib (10) of the nut B (6); the nut B (6) is composed of a nut body B (7) and a slide fastener convex rib (10), the nut body B (7) is in a round table shape with a small top and a big bottom, a through hole is arranged in the middle, an inner wall of the through hole is provided with an inner thread B (8), the inner thread B (8) is matched with an outer thread of a bolt (11), the nut body B (7) is processed with a plurality of uniformly distributed grooves (9), the openings of the grooves (9) are upward, the plurality of grooves (9) divide the nut body B (7) into a plurality of arc sections (13), each arc section (13) is provided with a plurality of slide fastener convex ribs (10), each slide fastener convex rib (10) is composed of a thread section (14) and a semi-arc section (15), the inclination of the thread section (14) is consistent with the inclination of the inner thread A (5), the lower parts of the plurality of grooves (9) of the nut body B (7) are integral bottom, the inclination of the inner side face of the extrusion part (3) of the nut A (1) is larger than the inclination of the, a plurality of cylinders (4) of the nut A (1) and a plurality of slide buckle convex ribs (10) of the nut B (6) are in one-to-one correspondence; the working principle of the locknut is as follows: firstly screwing a nut B (6) on a bolt (11) and enabling the lower end of the nut B (6) to press a workpiece (12), wherein the small face of the truncated cone shape faces upwards, then screwing an extrusion part (3) of the nut A (1) on the bolt (11) downwards, in the screwing process of the nut A (1), a plurality of cylinders (4) of the nut A (1) and thread sections (14) of a plurality of slide fastener convex ribs (10) of the nut B (6) are mutually attached, the nuts A (1) are continuously screwed, the upper ends of a plurality of cylinders (4) of the nut A (1) slide along the lower ends of the thread sections (14) of a plurality of slide fastener convex ribs (10) of the nut B (6) and are mutually extruded to generate elastic deformation, and when the plurality of cylinders (4) of the nut A (1) enter semicircular arc sections (15) of a plurality of slide fastener convex ribs (10) corresponding to the nut B (6), the plurality of elastic cylinders (4) of the nut A (1) are recovered, at the moment, the semi-circular arc sections (15) of the plurality of slide buckle convex ribs (10) of the nut B (6) buckle the plurality of cylinders (4) of the nut A (1), meanwhile, the lower end of the nut A (1) tightly props against a workpiece (12), the nut B (6) is completely wrapped in the extrusion part (3) of the nut A (1), the nut A (1) and the nut B (6) are interlocked, simultaneously, the inclination of the inner side surface of the extrusion part (3) of the nut A (1) is larger than that of the outer side surface of the bolt body B (7) of the nut B (6), the extrusion part (3) of the nut A (1) extrudes the plurality of circular arc sections (13) of the nut B (6), the internal threads B (8) of the plurality of circular arc sections (13) extrude the external threads of the bolt (11), and the external threads of the bolt (11) are tightly hooped, so that the friction force between the internal threads B (8) of the plurality of the circular arc sections (13) and the external threads of the bolt (11) is, the purpose of preventing looseness is achieved; under the action of vibration load, a fixed workpiece (12) firstly loosens the nut A (1), a plurality of slide fastener convex ribs (10) of the nut B (6) restrict a plurality of cylinders (4) of the nut A (1) to prevent the nut A (1) from loosening, the nut A (1) which is not loosened tightly hoops the nut B (6) to ensure that the nut B (6) is not loosened, and the purpose of loosening prevention is realized through interaction and mutual restriction; if the locknut needs to be loosened, only the nut A (1) needs to be rotated reversely, the semi-circular arc surfaces of the cylinders (4) of the nut A (1) and the slide fastener convex ribs (10) of the nut B (6) are mutually extruded to generate elastic deformation and slide along the lower end of the thread section (14) of the nut B (6), then the nut A (1) continues to be rotated reversely, the nut A (1) and the nut B (6) are loosened, and then the nut A (1) and the nut B (6) are screwed out for reutilization.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911238371.2A CN110873114B (en) | 2019-12-06 | 2019-12-06 | Sliding buckle type locknut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911238371.2A CN110873114B (en) | 2019-12-06 | 2019-12-06 | Sliding buckle type locknut |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110873114A true CN110873114A (en) | 2020-03-10 |
| CN110873114B CN110873114B (en) | 2021-03-19 |
Family
ID=69717575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911238371.2A Active CN110873114B (en) | 2019-12-06 | 2019-12-06 | Sliding buckle type locknut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110873114B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114215840A (en) * | 2022-01-11 | 2022-03-22 | 韦庆龙 | Never-loosening screw |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202014102757U1 (en) * | 2013-06-17 | 2014-06-27 | Kabo Tool Company | Self-assured mother |
| CN105387056A (en) * | 2015-12-02 | 2016-03-09 | 广西大学 | Device for preventing nut looseness |
| CN205371253U (en) * | 2015-12-09 | 2016-07-06 | 太仓中博铁路紧固件有限公司 | Locking antitheft nut and chuck thereof |
| JP6427022B2 (en) * | 2015-02-09 | 2018-11-21 | ハードロック工業株式会社 | Locking nut |
-
2019
- 2019-12-06 CN CN201911238371.2A patent/CN110873114B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202014102757U1 (en) * | 2013-06-17 | 2014-06-27 | Kabo Tool Company | Self-assured mother |
| JP6427022B2 (en) * | 2015-02-09 | 2018-11-21 | ハードロック工業株式会社 | Locking nut |
| CN105387056A (en) * | 2015-12-02 | 2016-03-09 | 广西大学 | Device for preventing nut looseness |
| CN205371253U (en) * | 2015-12-09 | 2016-07-06 | 太仓中博铁路紧固件有限公司 | Locking antitheft nut and chuck thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114215840A (en) * | 2022-01-11 | 2022-03-22 | 韦庆龙 | Never-loosening screw |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110873114B (en) | 2021-03-19 |
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| PB01 | Publication | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20211214 Address after: 324022 south of cenyi road and west of Jinqiu North Road, Quzhou Economic Development Zone, Zhejiang Province Patentee after: Quzhou Hongtong Fastener Co.,Ltd. Address before: No. 1023, block B, No. 38, south end of Xiangshan Avenue, Zhanghe New District, Jingmen City, Hubei Province Patentee before: Jingmen Baisi Machinery Technology Co.,Ltd. |
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| TR01 | Transfer of patent right |