CN108825633A - Self-tightening screw - Google Patents
Self-tightening screw Download PDFInfo
- Publication number
- CN108825633A CN108825633A CN201810750925.6A CN201810750925A CN108825633A CN 108825633 A CN108825633 A CN 108825633A CN 201810750925 A CN201810750925 A CN 201810750925A CN 108825633 A CN108825633 A CN 108825633A
- Authority
- CN
- China
- Prior art keywords
- ring
- fastening
- nut
- self
- anticreep
- 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
- 230000005540 biological transmission Effects 0.000 claims abstract description 21
- 239000012858 resilient material Substances 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 description 7
- 238000005381 potential energy Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000005055 memory storage Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 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
- 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
- F16B39/282—Locking by means of special shape of work-engaging surfaces, e.g. notched or toothed nuts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
- F16B39/24—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by means of washers, spring washers, or resilient plates that lock against the object
-
- 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
- F16B39/284—Locking by means of elastic deformation
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bolts, Nuts, And Washers (AREA)
Abstract
The present invention relates to a kind of self-tightening screw, this self-tightening screw includes screw rod, nut and dead ring；Dead ring with nut is coaxial is set on screw rod, carved on the dead ring anchor ring opposite with nut and be equipped with matched anti-slop serrations；The fastening chamber of annular is offered in the dead ring, the axis of the fastening chamber is parallel with the axis of dead ring；It is described fastening it is intracavitary be provided with transmission ring, transmission ring and fastening chamber between be connected with fastening disc spring；Anticreep washer is arranged in the outer, coaxial of the transmission ring, and elasticity layer is set between the upper ring surface and fastening chamber of anticreep washer, the lower anchor ring of anticreep washer exposes from fastening chamber；It is provided with the limited post for limiting the rotation of anticreep washer on the dead ring, is offered on the anticreep washer and the matched limit hole of the limited post；The self-tightening screw structural is novel, principle is unique, nut can be effectively prevent to loosen, guarantee the secured connection of component.
Description
Technical field
The present invention relates to a kind of screws, are a kind of anti-loose screws particularly.
Background technique
Instrument is in assembling by screw tightening, fixation, and when running at high speed, instrument can generate the micro-vibration of high frequency, this is micro-
Vibration is easy to cause the loosening of screw, causes the linking of component insecure, easily causes safety accident, therefore many enterprises are to spiral shell
Extremely to pay attention in terms of the fastening of silk, cap nut even after fixing component using screw tightening, is directly welded by many enterprises,
But this way causes very big obstruction to subsequent maintenance, also seriously affects maintenance, the maintenance of instrument；Therefore self-tightening screw
Concern and favor of the appearance by enterprise；But the self-tightening screw that uses of China is mainly by import at present, and work as trade war
When beginning, the shortage of this autonomous science and technology will seriously limit the phylactic power defensive power in China.
Summary of the invention
In view of the above-mentioned problems, the present invention provides a kind of self-tightening screw, the self-tightening screw structural is novel, principle is unique, can
It effectively prevent nut to loosen, guarantees the secured connection of component.
To solve the above problems, the technical scheme adopted by the invention is that：This self-tightening screw includes screw rod, nut and tight
Gu ring, engaged through the thread between screw rod and nut；Dead ring with nut is coaxial is set on screw rod, in dead ring and nut
It is carved on opposite anchor ring and is equipped with matched anti-slop serrations；The fastening chamber of annular is offered in the dead ring, the fastening chamber
Axis is parallel with the axis of dead ring；It is described fastening it is intracavitary be provided with transmission ring, transmission ring and fastening chamber between be connected with
Disc spring is fastened, the inner ring end of the fastening disc spring is fixedly connected in the cavity wall of fastening chamber, fastens the fixed company in outer ring end of disc spring
It connects on the internal ring wall of transmission ring；Be arranged with anticreep washer in the outer, coaxial of the transmission ring, the anticreep washer it is interior
Connection is engaged by limiting striped between ring and the outer ring of transmission ring, is provided with bullet between the upper ring surface and fastening chamber of anticreep washer
Property layer, the lower anchor ring of anticreep washer exposes from fastening chamber；The anticreep washer and transmission ring can be relative to fastening chamber slidings；
Be provided on the dead ring for limit anticreep washer rotation limited post, offered on the anticreep washer with it is described
The matched limit hole of limited post.
The beneficial effects of the invention are as follows：When production and processing, pre-screwing is carried out to fastening disc spring, guarantees fastening disc spring memory storage
There are enough elastic potential energys；Limited post is inserted into limit hole, it is locked to carry out limit to anticreep washer；It is filled using this self-tightening screw
When with instrument, after screw rod is penetrated screw hole, first dead ring is slidably located on screw rod, then nut rotation is set in screw rod
On, so that nut with dead ring there is the one side of anti-slop serrations to match in opposite directions；Anticreep washer front on dead ring at this time
Surface；It turns nut to fix instrument, at this time the nut face upper limit tooth matched occlusion opposite with dead ring, the anticreep pad
Circle is fitted closely with instrument, and anticreep washer and equipment surfaces generate stronger stiction, and anticreep washer and instrument is effectively ensured
Between be not in sliding；Limited post is removed from outside, limitation is freed between anticreep washer and fastening chamber at this time, opposite can transport
Dynamic, dead ring is rotated relative to anticreep washer under the action of fastening disc spring, and drives nut to continue to rotate by limiting tooth；In
It is that nut has and continues the trend tightened, and anticreep washer is then under extruding force to intracavitary retraction is fastened, at this time entire self-tightening spiral shell
Silk assembly finishes.
In use, fastening disc spring have always driving dead ring rotation trend, thus nut have always it is stubborn
Tight trend；Instrument in the process of running can high frequency micro-vibration, when may cause loosening for nut, and using the present invention, spiral shell
Mother remains tight condition, as having external force to be reinforced always, so that nut be effectively prevent to loosen；To sum up, the self-tightening spiral shell
Silk remains that nut is tightened using the elastic potential energy stored in fastening disc spring, and then resists and loosen caused by instrument vibration；Together
When, the structure is easy to disassemble, can use repeatedly, provide convenience for maintenance, the maintenance in later period.
Preferably, the anti-slop serrations are the chisel teeth circumferentially extended along dead ring；In order to reduce processing complexity, together
The anti-loose effect of Shi Tigao.
As further preferred, in the buffer layer that the tail end setting resilient material of the chisel teeth is made into；In order to support
Disappear the vibration of instrument, so that further placing nut and dead ring are loosened because of rigid collision.
Detailed description of the invention
Fig. 1 is the assembling structure schematic diagram of this self-tightening screw one embodiment.
Fig. 2 is the cross section structure schematic diagram of dead ring in embodiment illustrated in fig. 1.
Fig. 3 is the perspective structure schematic diagram of dead ring in embodiment illustrated in fig. 1.
Specific embodiment
Embodiment：
In Fig. 1 into embodiment shown in Fig. 3, this self-tightening screw includes screw rod 1, nut 2 and dead ring 3, screw rod 1 and nut
It is engaged through the thread between 2；Dead ring 3 with nut 2 is coaxial is set on screw rod 1, in the ring opposite with nut 2 of dead ring 3
It is carved on face and is equipped with matched anti-slop serrations 4；The anti-slop serrations 4 are the chisel teeth circumferentially extended along dead ring 3；In the chisel teeth
The buffer layer 41 that tail end setting resilient material is made into；The fastening chamber of annular, the fastening chamber are offered in the dead ring 3
Axis it is parallel with the axis of dead ring 3；It is described fastening it is intracavitary be provided with transmission ring 5, transmission ring 5 and fastening chamber between connect
It is connected to fastening disc spring 6, the inner ring end of the fastening disc spring 6 is fixedly connected in the cavity wall of fastening chamber, fastens the outer ring end of disc spring 6
It is fixedly connected on the internal ring wall of transmission ring 5；Anticreep washer 7, the anticreep are arranged in the outer, coaxial of the transmission ring 5
Connection, the upper ring surface and fastening chamber of anticreep washer 7 are engaged by limiting striped between the inner ring of washer 7 and the outer ring of transmission ring 5
Between elasticity layer 8 is set, the lower anchor ring of anticreep washer 7 exposes from fastening chamber；The anticreep washer 7 and transmission ring 5 can
Relative to fastening chamber sliding；The limited post 9 for limiting the rotation of anticreep washer 7 is provided on the dead ring 3, described anti-
It is offered and the matched limit hole of the limited post 9 on de- washer 7；The structure can convenient working personnel to anticreep washer 7 into
Row is preset, to improve the anticreep effect of self-tightening screw.
When production and processing, pre-screwing is carried out to fastening disc spring 6, guarantees to be stored with enough elastic potential energys in fastening disc spring 6；
Limited post 9 is inserted into limit hole, it is locked to carry out limit to anticreep washer 7；When assembling instrument using this self-tightening screw, by screw rod
After 1 penetrates screw hole, first dead ring 3 is slidably located on screw rod 1, then the rotation of nut 2 is set on screw rod 1, so that nut 2
With dead ring 3 there is the one side of anti-slop serrations 4 to match in opposite directions；The surface of 7 front of anticreep washer on dead ring 3 at this time；It twists
Dynamic nut 2 fixes instrument, and the face upper limit tooth opposite with dead ring 3 of nut 2 is matched at this time is engaged, the anticreep washer 7
It is fitted closely with instrument, anticreep washer 7 and equipment surfaces generate stronger stiction, and anticreep washer 7 and instrument is effectively ensured
Between be not in sliding；Remove limited post 9 from outside, at this time anticreep washer 7 and fastening chamber between free limitation, can be opposite
Movement, dead ring 3 is rotated relative to anticreep washer 7 under the action of fastening disc spring 6, and drives nut 2 to continue by limiting tooth
Rotation；Then nut 2 has the trend for continuing to tighten, and anticreep washer 7 is then under extruding force to the intracavitary retraction of fastening, whole at this time
A self-tightening screw assembly finishes；In the present embodiment, nut 2 is engaged with dead ring 3 by chisel teeth structure matching, while wedge shape
The buffer layer 41 of tooth tail end is by the two compressional deformation.
In use, the trend that there is fastening disc spring 6 driving dead ring 3 to rotate always, thus nut 2 has always
The trend tightened；Instrument in the process of running can high frequency micro-vibration, when may cause loosening for nut 2, and using the present invention,
Nut 2 remains tight condition, as having external force to be reinforced always, so that nut 2 be effectively prevent to loosen；Chisel teeth simultaneously
The buffer layer 41 of tail end can effectively offset the micro-vibration of instrument, further decrease the speed that nut 2 is loosened by rigid collision.
To sum up, the self-tightening screw structural is novel, principle is unique, is protected always using the elastic potential energy stored in fastening disc spring 6
It holds nut 2 to tighten, and then resists and loosened caused by instrument vibration；The structure is easy to disassemble simultaneously, can use repeatedly, after being
Maintenance, the maintenance of phase provides convenience.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (3)
1. a kind of self-tightening screw, this self-tightening screw include screw rod（1）, nut（2）And dead ring（3）, screw rod（1）And nut
（2）Between it is engaged through the thread；It is characterized in that：Dead ring（3）With nut（2）Coaxial is set in screw rod（1）On, it is fastening
Ring（3）With nut（2）It is carved on opposite anchor ring and is equipped with matched anti-slop serrations（4）；In the dead ring（3）Inside offer annular
Fasten chamber, the axis and dead ring of the fastening chamber（3）Axis it is parallel；Intracavitary transmission ring is provided in the fastening（5）,
Transmission ring（5）Fastening disc spring is connected between fastening chamber（6）, the fastening disc spring（6）Inner ring end be fixedly connected on fastening
In the cavity wall of chamber, disc spring is fastened（6）Outer ring end be fixedly connected on transmission ring（5）Internal ring wall on；In the transmission ring（5）'s
Outer, coaxial is arranged with anticreep washer（7）, the anticreep washer（7）Inner ring and transmission ring（5）Outer ring between pass through limit
Position striped engagement connection, anticreep washer（7）Upper ring surface and fastening chamber between elasticity layer is set（8）, anticreep washer（7）Under
Anchor ring exposes from fastening chamber；The anticreep washer（7）And transmission ring（5）It can be relative to fastening chamber sliding；In the fastening
Ring（3）On be provided with for limiting anticreep washer（7）The limited post of rotation（9）, in the anticreep washer（7）On offer and institute
State limited post（9）Matched limit hole.
2. self-tightening screw according to claim 1, it is characterised in that：The anti-slop serrations（4）For along dead ring（3）Circumferentially prolong
The chisel teeth stretched.
3. self-tightening screw according to claim 2, it is characterised in that：In the tail end of the chisel teeth, resilient material is set
The buffer layer being made into（41）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810750925.6A CN108825633B (en) | 2018-07-10 | 2018-07-10 | Self-tightening screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810750925.6A CN108825633B (en) | 2018-07-10 | 2018-07-10 | Self-tightening screw |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108825633A true CN108825633A (en) | 2018-11-16 |
| CN108825633B CN108825633B (en) | 2020-06-02 |
Family
ID=64136866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810750925.6A Active CN108825633B (en) | 2018-07-10 | 2018-07-10 | Self-tightening screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108825633B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111761695A (en) * | 2020-07-09 | 2020-10-13 | 贺新 | Embedded part mounting device for machine-made concrete slab |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2132018Y (en) * | 1992-02-17 | 1993-05-05 | 邵国强 | Torsion spring type thread anti-loosening device |
| JPH09257026A (en) * | 1996-01-17 | 1997-09-30 | Ikeya Kogyo Kk | Screw fixing tool |
| JPH10122222A (en) * | 1996-10-15 | 1998-05-12 | Shigezo Tatsumi | Self-locking nut with spring |
| JP2007016882A (en) * | 2005-07-07 | 2007-01-25 | Miyoshi Kikuo | Automatic tightening means |
| JP2009121577A (en) * | 2007-11-14 | 2009-06-04 | Satoshi Kokue | Lock nut device |
| CN102840214A (en) * | 2011-06-21 | 2012-12-26 | 北汽福田汽车股份有限公司 | Bolt group |
| CN206017411U (en) * | 2016-07-16 | 2017-03-15 | 温州市康华液压有限公司 | A kind of stop nut |
-
2018
- 2018-07-10 CN CN201810750925.6A patent/CN108825633B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2132018Y (en) * | 1992-02-17 | 1993-05-05 | 邵国强 | Torsion spring type thread anti-loosening device |
| JPH09257026A (en) * | 1996-01-17 | 1997-09-30 | Ikeya Kogyo Kk | Screw fixing tool |
| JPH10122222A (en) * | 1996-10-15 | 1998-05-12 | Shigezo Tatsumi | Self-locking nut with spring |
| JP2007016882A (en) * | 2005-07-07 | 2007-01-25 | Miyoshi Kikuo | Automatic tightening means |
| JP2009121577A (en) * | 2007-11-14 | 2009-06-04 | Satoshi Kokue | Lock nut device |
| CN102840214A (en) * | 2011-06-21 | 2012-12-26 | 北汽福田汽车股份有限公司 | Bolt group |
| CN206017411U (en) * | 2016-07-16 | 2017-03-15 | 温州市康华液压有限公司 | A kind of stop nut |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111761695A (en) * | 2020-07-09 | 2020-10-13 | 贺新 | Embedded part mounting device for machine-made concrete slab |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108825633B (en) | 2020-06-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20200506 Address after: 523750 second floor, No.4, Mingzhu Second Road, shebei village, Huangjiang Town, Dongguan City, Guangdong Province Applicant after: Dongguan pin Gu Precision Hardware Products Co.,Ltd. Address before: 215000 Shuixiu Tiandi, Kaiping Road, Wujiang District, Suzhou City, Jiangsu Province, 2003 Applicant before: Gu Yufeng |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |