CN108425928A - A kind of reusable fastener - Google Patents
A kind of reusable fastener Download PDFInfo
- Publication number
- CN108425928A CN108425928A CN201810360169.6A CN201810360169A CN108425928A CN 108425928 A CN108425928 A CN 108425928A CN 201810360169 A CN201810360169 A CN 201810360169A CN 108425928 A CN108425928 A CN 108425928A
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- CN
- China
- Prior art keywords
- nut
- screw rod
- cap
- notch
- hole
- 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.)
- Pending
Links
- 239000000463 material Substances 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005191 phase separation Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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
- F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
- F16B35/04—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws with specially-shaped head or shaft in order to fix the bolt on or in an object
- F16B35/041—Specially-shaped shafts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B37/00—Nuts or like thread-engaging members
-
- 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
- F16B39/10—Locking of screws, bolts or nuts in which the locking takes place after screwing down by a plate, spring, wire or ring immovable with regard to the bolt or object and mainly perpendicular to the axis of the bolt
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Dowels (AREA)
Abstract
The present invention discloses a kind of reusable fastener, the fastener includes screw rod, main nut, anti-rotation card cap and secondary nut, screw rod has one section of first notch in an axial direction from end, the section of main nut is T-shaped, i.e. main nut has the secondary cap of protrusion in an axial direction, the tapped through hole that the middle part of main nut is and screw rod coordinates, the groove of the densely covered strip of lateral surface of secondary cap；The section of anti-rotation card cap is H-shaped, is equipped with smooth bore in an axial direction in middle section, and have the second notch on the smooth bore, it is arc-shaped through-hole to make the through-hole, and the second notch and first notch match；It is provided with elastic chuck on the medial surface of anti-rotation card cap upper and lower side；The middle part of secondary nut be and screw rod cooperation tapped through hole, outer wall in an axial direction also gather strip groove.The fastener can accomplish to realize never becoming loose in any violent vibration, and the precision of fastening is very high, and within the service life of material, fastener does not damage and can dismantle use repeatedly.
Description
Technical field
The present invention relates to fastener areas, and in particular to a kind of reusable fastener.
Background technology
In many mechanical equipment installation engineerings, bolt, nut are one of indispensable accessories, its effect is will to set
Standby each component is firmly coupled, and equipment is made to run well.
Currently used nut, since the outer force effects such as vibrations easy to produce loosening, is susceptible to during machine operation
Failure influences job schedule.
Nut is common in mechanical equipment installation engineering and indispensable fastener.Due to being generated in the operation of a machine
Vibration, other outer force effects and factors cause nut loosening even to fall off over time etc., can thus give the normal fortune of machine
Turn to cause important influence.In existing technology, add split pin, in nut in slotted nut to prevent nut loosening from mostly using greatly
Increase the measure of spiral shell pad and locking glue below, but it is very laborious in dismounting in this way, it cannot reuse, and prevent
The effect of loosening is also undesirable, equally can bring security risk to the operation of a machine.
There is vibration to generate when common mechanical machine operation, this not only consumes a part of power, wastes energy, vibrates simultaneously
Each connecting component can be also caused to generate loose phenomenon, especially at the position of nut bolt connection, once there is nut loosening
The possibility to fall off is just had, accident is caused to generate.
At present when clamping workpiece, screw rod is usually worn in the perforation of workpiece, is then used at the both ends of screw rod single
Or two nut checks, but even if using two nut checks, still still can loosen, keep locking not firm, in screw rod
Nut can not be dismantled in the case that end is damaged, and be all an exposure to outside additionally, due to nut and screw rod, with the erosion of rainwater, make
Nut and screw rods from rusting, dismounting are difficult.
Fastener is to be fastenedly connected with and apply extremely wide a kind of machine components.Fastener, it is wide using industry
It is general, including the energy, electronics, electric appliance, machinery, chemical industry, metallurgy, mold, hydraulic pressure etc. industry, various machineries, equipment, vehicle,
Above ship, railway, bridge, building, structure, tool, instrument, chemical industry, instrument and articles for use etc., it can be seen that miscellaneous
Fastener is most widely used mechanical basic part.Its feature is that description is various, and performance purposes is different, and standard
Change, seriation, unitized degree are also high.
It is generally kept away as elastic material with spring washer or cushion currently used for the nut of solid mechanical part or workpiece
Exempt from the loosening of nut, but they have common weakness, that is, be not used in the environment of vibration and keep long-term fastening, is easy de-
It falls.Another is exactly the locking nut of Japanese Hadlock (HardLock), and locking effect is good, but eccentric design is to manufacturing work
Skill requires high and production cost high.
" the tapered thread body of bolt and tapered thread nut " patent (CN 105443546A) of trip Yi Hua has changed screw thread
Structure, made angular thread into tapered thread, vibration test is found out, by screw thread do not loosen fastening from 30,000 times promoted to
13.6 ten thousand times, fastening situation is promoted, but for shaking violent equipment, the never becoming loose for also failing to really solve screw thread is asked
Topic.
In the environment of high vibration, the nut that can be realized " never becoming loose " and can reuse only is inserted at present
Selling class product, (such as Zhao's Zhe, Guangzhou Car Group Co., Ltd, the patent No. is CN 103216512A, i.e., with bolt to nut
Confined, it is made not rotate in vibration.In work, the loosening of fastener is because fastening nut occurs in vibration
It rotates and fastener is caused to loosen.The disadvantage is that the precision of fastening is lacked, nut revolves one of the bolt class product
Turnback only has the socket in 3 directions namely the fastening precision of nut is 60 degree of rotation angles of nut.So necessary in it
One, pad has the gasket of notch elasticity to help the fastening of fastener.
Invention content
It is an object of the invention to overcome the prior art, a kind of simple in structure, easy to use, fixation is provided
Never becoming loose nut.Specific technical solution is as follows：
A kind of reusable fastener, which is characterized in that the fastener include screw rod, main nut, anti-rotation card cap and
Secondary nut；
The screw rod has one section of first notch in an axial direction from end；
The section of the main nut is T-shaped, i.e., main nut has the secondary cap of protrusion in an axial direction, in the main nut
The tapped through hole that portion is and the screw rod coordinates, the groove of the densely covered strip of lateral surface of the secondary cap；
The section of the anti-rotation card cap is H-shaped, and smooth bore in an axial direction, and the smooth bore are equipped in middle section
On have the second notch, make the through-hole be arc-shaped through-hole, second notch and first notch match；Anti-rotation card
It is provided with elastic chuck on the medial surface of cap upper and lower side；
The middle part of the secondary nut be and screw rod cooperation tapped through hole, outer wall in an axial direction also gather strip it is recessed
Slot；
When tightened, the screw rod passes through fastener, the main nut screwing to compress fastener on screw rod,
The smooth bore of the anti-rotation card cap passes through the first notch of screw rod, and the elastic chuck in its lower end inside face compresses main nut
Secondary cap lateral surface groove；The secondary nut screwing is on screw rod, and the elastic chuck of the upper end medial surface of anti-rotation card cap
Compress the groove of the outer wall of time nut.
Preferably, the head of the elastic chuck is sphenoid bur, the pair with the groove of the outer wall of secondary nut, main nut
The lateral surface groove of cap mutually links closely, and prevents the rotation of main nut and time nut.
Preferably, the outer wall of the anti-rotation card cap is hex nut shape.
Preferably, the lateral wall of the main nut is also hex nut shape or circle.
Preferably, the outer diameter of the main nut is equal with the outer diameter of the screw head of the screw rod.
Beneficial effects of the present invention are as follows：
1. can accomplish to realize that never becoming loose, the precision of fastening are very high in any violent vibration, it might even be possible to realize 1
Corner accuracy below is spent, unlike the precision of bolt-type is 60 degree；
2. within the service life of material, fastener does not damage and can dismantle use repeatedly.
Description of the drawings
Fig. 1 is the assembly structure diagram of the fastener of the present invention；
Fig. 2 is the structural schematic diagram of screw rod；
Fig. 3 is the structural schematic diagram of time nut；
Fig. 4 is the structural schematic diagram of anti-rotation card cap；
Fig. 5 is the structural schematic diagram of main nut；
Wherein, 1- screw rods；2- nut；3- anti-rotation card caps；The main nuts of 4-；5- fixtures；The first notches of 11-；21- is recessed
Slot；22- tapped through holes；31- elastic chucks；32- smooth bores；The second notches of 33-；41- pair caps；The screw thread of the main nuts of 42- 4 is logical
Hole.
Specific implementation mode
Below according to attached drawing and the preferred embodiment detailed description present invention, the objects and effects of the present invention will become brighter
In vain, below in conjunction with drawings and examples, the present invention will be described in further detail.It should be appreciated that described herein specific
Embodiment is only used to explain the present invention, is not intended to limit the present invention.
As shown in Figs. 1-5, a kind of reusable fastener, the fastener include screw rod 1, main nut 4, anti-rotation card cap
3 form with time nut 2；
Screw rod 1 has one section of first notch 11 in an axial direction from end；
The section of main nut 4 is T-shaped, i.e. main nut 4 has a secondary cap 41 of protrusion in an axial direction, in the main nut 4
The tapped through hole 42 that portion is and the screw rod 1 coordinates, the groove of the densely covered strip of lateral surface of the secondary cap 41.Main nut 4
Effect be to play the role of fixed fixture 5.
The section of the anti-rotation card cap 3 is H-shaped, is equipped with smooth bore 32 in an axial direction in middle section, and this is smooth
There is the second notch 33 on through-hole 32, it is arc-shaped through-hole to make the through-hole 32, and the second notch 33 and the first notch 11 match, and is prevented
Anti-rotation nut 3 rotates；It is provided with elastic chuck 31, the head of elastic chuck 31 on the medial surface of 3 upper and lower side of anti-rotation card cap
It is sphenoid bur, matches and act on the groove 21 of the outer groove of secondary cap 41, secondary nut outer and mutually link closely, to prevent from leading
The rotation of nut 4 and time nut 2.The effect of anti-rotation card cap 3 is to prevent the rotation of main nut 4 and time nut 2.
The tapped through hole 22 that the middle part of the secondary nut 2 is and screw rod 1 coordinates, outer wall also gather strip in an axial direction
Groove 21；The effect of secondary nut 2 is to prevent anti-rotation card cap 3 from sliding in and out.
When tightened, the screw rod 1 is passed through by the hole of fastener, and fastening is tightened with main nut 4；The of anti-rotation card cap 3
Two notches 33 are directed at the first notch 11 of screw rod 1, and anti-rotation card cap 3 is added on screw rod 1；Secondary nut 2 is screwed on screw rod 1 again,
And it tightens.With tightening for secondary nut 2, the outer strip of elastic chuck 31 and the secondary cap 41 on main nut 4 on anti-rotation card cap 3
Groove phase separation, while also and 21 phase separation of outer groove of time nut 2.First notch 11 of screw rod 1 prevents anti-rotation card
The rotation of cap 3, the elastic chuck 31 on anti-rotation card cap 3 prevent the rotation of main nut 4 and time nut 2.Prevent turning for main nut 4
It is dynamic, it is prevented that loosening of the fastener in vibration；Prevent the rotation of time nut 2, it is prevented that in vibration anti-rotation card cap 3 cunning
It falls.To realize the function of never becoming loose nut fastener never becoming loose of the present invention.
Preferably, the outer wall of the anti-rotation card cap 3 is hex nut shape.
Preferably, the lateral wall of the main nut 4 is also hex nut shape or circle.
Preferably, the outer diameter of the main nut 4 is equal with the outer diameter of screw head of screw rod 1.
It will appreciated by the skilled person that the foregoing is merely the preferred embodiment of invention, it is not used to limit
System invention, although invention is described in detail with reference to previous examples, for those skilled in the art, still
It can modify to the technical solution of aforementioned each case history or equivalent replacement of some of the technical features.It is all
Within the spirit and principle of invention, modification, equivalent replacement for being made etc. should be included within the protection domain of invention.
Claims (5)
1. a kind of reusable fastener, which is characterized in that the fastener includes screw rod (1), main nut (4), anti-rotation card
Cap (3) and time nut (2)；
The screw rod (1) has one section of first notch (11) in an axial direction from end；
The section of the main nut (4) is T-shaped, i.e., main nut (4) has the secondary cap (41) of protrusion, the main spiral shell in an axial direction
The tapped through hole (42) that the middle part of cap (4) is and the screw rod (1) coordinates, the densely covered strip of lateral surface of the secondary cap (41)
Groove.
The section of the anti-rotation card cap (3) is H-shaped, is equipped with smooth bore (32) in an axial direction in middle section, and this is smooth
There is the second notch (33) on through-hole (32), it is arc-shaped through-hole, second notch (33) and described to make the through-hole (32)
First notch (11) matches；It is provided with elastic chuck (31) on the medial surface of anti-rotation card cap (3) upper and lower side；
The middle part of the secondary nut (2) be and screw rod (1) cooperation tapped through hole (22), outer wall in an axial direction also gather strip
Groove (21).
When tightened, the screw rod (1) passes through fixture, and the main nut (4) screws on screw rod (1), and compresses
Fixture, the smooth bore (32) of the anti-rotation card cap (3) pass through the first notch of screw rod (1), and its lower end inside face
Elastic chuck (31) compress main nut (4) secondary cap (41) lateral surface groove；The secondary nut (2) is screwed in screw rod
(1) on, and the elastic chuck (31) of the upper end medial surface of anti-rotation card cap (3) compresses the groove (21) of the outer wall of time nut (2).
2. reusable fastener according to claim 1, which is characterized in that the head of the elastic chuck (31)
Portion is sphenoid bur, mutual with the lateral surface groove of the groove (21) of the outer wall of secondary nut (2), the secondary cap (41) of main nut (4)
It links closely, prevents the rotation of main nut (4) and time nut (2).
3. reusable fastener according to claim 1, which is characterized in that outside the anti-rotation card cap (3)
Wall is hex nut shape.
4. reusable fastener according to claim 1, which is characterized in that the outside of the main nut (4)
Wall is also hex nut shape or circle.
5. reusable fastener according to claim 1, which is characterized in that the outer diameter of the main nut (4)
It is equal with the outer diameter of screw head of screw rod (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810360169.6A CN108425928A (en) | 2018-04-20 | 2018-04-20 | A kind of reusable fastener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810360169.6A CN108425928A (en) | 2018-04-20 | 2018-04-20 | A kind of reusable fastener |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108425928A true CN108425928A (en) | 2018-08-21 |
Family
ID=63161538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810360169.6A Pending CN108425928A (en) | 2018-04-20 | 2018-04-20 | A kind of reusable fastener |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108425928A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109107635A (en) * | 2018-09-07 | 2019-01-01 | 安徽育安实验室装备有限公司 | A kind of reagent rack used for laboratry |
| CN109268381A (en) * | 2018-12-04 | 2019-01-25 | 中冶建工集团有限公司 | Double nut fastens subassembly of lock bolt |
| CN109630533A (en) * | 2018-12-31 | 2019-04-16 | 天津市盛立达机械设备有限公司 | The conical surface wedges clinch fastener |
| CN109681515A (en) * | 2018-12-29 | 2019-04-26 | 天津市盛立达机械设备有限公司 | The locked bolt of integration |
| CN109723712A (en) * | 2018-12-29 | 2019-05-07 | 天津市盛立达机械设备有限公司 | It is inserted in limiting locking bolt |
| CN110360211A (en) * | 2019-07-25 | 2019-10-22 | 海盐宏合标准件有限公司 | A kind of high-efficient subassembly of lock bolt |
| CN112524136A (en) * | 2020-11-30 | 2021-03-19 | 中国建筑第八工程局有限公司 | Bolt assembly not easy to loose |
| WO2022104936A1 (en) * | 2020-11-17 | 2022-05-27 | 崔路晋 | Anti-loosening bolt fastener |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002242919A (en) * | 2001-02-20 | 2002-08-28 | Masataka Ishii | Bolt/nut tightening tool |
| CN204610516U (en) * | 2015-04-28 | 2015-09-02 | 宣化钢铁集团有限责任公司 | Abnormity lock nut |
| CN106246698A (en) * | 2015-08-06 | 2016-12-21 | 杨东佐 | One is fastenedly connected assembly and structure, method for dismounting, track structure, crankshaft connecting rod system, bone attachment means and bone method of attachment |
| CN205977996U (en) * | 2016-08-29 | 2017-02-22 | 天津市宇龙鑫金属制品有限公司 | Locking threaded fastener connection structure who moves |
| CN206860645U (en) * | 2017-06-27 | 2018-01-09 | 云南工商学院 | A kind of automobile using anti-loose fastener |
| CN208221293U (en) * | 2018-04-20 | 2018-12-11 | 浙江树人学院 | A kind of reusable fastener |
-
2018
- 2018-04-20 CN CN201810360169.6A patent/CN108425928A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002242919A (en) * | 2001-02-20 | 2002-08-28 | Masataka Ishii | Bolt/nut tightening tool |
| CN204610516U (en) * | 2015-04-28 | 2015-09-02 | 宣化钢铁集团有限责任公司 | Abnormity lock nut |
| CN106246698A (en) * | 2015-08-06 | 2016-12-21 | 杨东佐 | One is fastenedly connected assembly and structure, method for dismounting, track structure, crankshaft connecting rod system, bone attachment means and bone method of attachment |
| CN205977996U (en) * | 2016-08-29 | 2017-02-22 | 天津市宇龙鑫金属制品有限公司 | Locking threaded fastener connection structure who moves |
| CN206860645U (en) * | 2017-06-27 | 2018-01-09 | 云南工商学院 | A kind of automobile using anti-loose fastener |
| CN208221293U (en) * | 2018-04-20 | 2018-12-11 | 浙江树人学院 | A kind of reusable fastener |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109107635A (en) * | 2018-09-07 | 2019-01-01 | 安徽育安实验室装备有限公司 | A kind of reagent rack used for laboratry |
| CN109268381A (en) * | 2018-12-04 | 2019-01-25 | 中冶建工集团有限公司 | Double nut fastens subassembly of lock bolt |
| CN109681515A (en) * | 2018-12-29 | 2019-04-26 | 天津市盛立达机械设备有限公司 | The locked bolt of integration |
| CN109723712A (en) * | 2018-12-29 | 2019-05-07 | 天津市盛立达机械设备有限公司 | It is inserted in limiting locking bolt |
| CN109630533A (en) * | 2018-12-31 | 2019-04-16 | 天津市盛立达机械设备有限公司 | The conical surface wedges clinch fastener |
| CN110360211A (en) * | 2019-07-25 | 2019-10-22 | 海盐宏合标准件有限公司 | A kind of high-efficient subassembly of lock bolt |
| WO2022104936A1 (en) * | 2020-11-17 | 2022-05-27 | 崔路晋 | Anti-loosening bolt fastener |
| CN112524136A (en) * | 2020-11-30 | 2021-03-19 | 中国建筑第八工程局有限公司 | Bolt assembly not easy to loose |
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