CN108425933A - A kind of double nut reverse thread anti-loosing fixing device - Google Patents
A kind of double nut reverse thread anti-loosing fixing device Download PDFInfo
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- CN108425933A CN108425933A CN201810457982.5A CN201810457982A CN108425933A CN 108425933 A CN108425933 A CN 108425933A CN 201810457982 A CN201810457982 A CN 201810457982A CN 108425933 A CN108425933 A CN 108425933A
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- Prior art keywords
- nut
- stop
- fastening
- fastening nut
- stop nut
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- 238000009434 installation Methods 0.000 claims description 5
- 239000005060 rubber Substances 0.000 claims description 5
- 230000002457 bidirectional effect Effects 0.000 abstract description 2
- 230000015556 catabolic process Effects 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 7
- 238000011161 development Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 2
- 235000011613 Pinus brutia Nutrition 0.000 description 2
- 241000018646 Pinus brutia Species 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000003211 malignant effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 239000010959 steel 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
- 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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Connection Of Plates (AREA)
Abstract
A kind of double nut reverse thread anti-loosing fixing device is made of forward and reverse two-flight screw, fastening nut and stop nut, positioning pin, it is characterized in that fastening nut is close to fastener, stop nut is close to fastening nut, the rotation direction of thread of fastening nut and stop nut is opposite, respectively left-hand nut and right-handed thread nut, left-hand nut and right-handed thread nut will form a mutual lock body by blind hole and movable positioning pin, it will finally realize Bidirectional locking, any loosening will not occur when encountering high vibration.Can efficiently solve railway, train, automobile and other engineering machineries because equipment constantly vibrate cause the common bolt device of fixed equipment to occur to loosen due to the equipment breakdown that causes, thus be conducive to the safety of raising vibratory equipment in use.
Description
Technical field
The present invention relates to a kind of Anti-loosening nut, more particularly to a kind of double nut reverse thread anti-loosing fixing device.
Background technology
Screw check is dynamic, is the serious problems of industry manufacture and industrial products all the time, even fatal hidden danger, and
The safety accident that this not timing occurs generates our daily life, work or even communications and transportation, national defense and military production
Uncertain harm.So various countries engineer, scientist are put to deep research for a long time at the dynamic aspect of screw check,
Earnestly hope and marks final solution.Screw connection is current most common connecting mode.It is threadedly coupled the excellent of more other connections
Point one of be that its is detachable, easy-maintaining, but this is also its weakness simultaneously, especially run at high speed, vibrate strong train,
In the heavy mechanical equipments such as automobile, aircraft and tank, because of the loosening of thread connection, loosen and fatigue fracture etc. due tos cause to overturn,
The malignant event of fatal crass is innumerable.As machinery is to high speed, precise treatment development, commercial scale is to extensive, automatic
Change development and the development etc. of aeronautical and space technology, the locking problem of threaded fastener connection also becomes more and more prominent.Generally
In the case of, the service life that fastener anti-vibration pine turns is more much lower than the fatigue life of other materials and structure, i.e., fastener is far away from tired
Just there is pine before labor fracture and has turned failure.Therefore, the anti-loosening problem of threaded connection is constantly thought deeply, always
It is the project that people endeavour research.
Chinese patent CN201155516Y discloses a kind of forward and reverse thread self locking type screw rod cap nut, by forward and reverse double thread
Screw rod, forward screw thread nut, reverse thread lock nut are constituted.The upper external screw thread of forward and reverse two-flight screw is divided into forward screw thread section
With reverse thread section, reverse thread section diameter is less than forward screw thread section and is in screw tip, as long as forward screw thread nut is prolonged
Screw rod forward screw thread section forward direction screws in fastening mechanical part, then reverse thread lock nut is prolonged screw rod reverse thread section and is reversely screwed in tightly
Positive pressure is to threaded screw.Since pressing face has the triangle tongue and groove uniformly distributed outward by the center of circle to match, forward screw thread spiral shell
The reversed loosening rotary force of cap will make reverse thread lock nut generate spinning force, be mutually twisted and do not loosen.Dismounting is reverse thread
The unique loosening force of lock nut is the rotary force for driving forward screw thread nut, reverse thread lock nut to be separated, suitably firmly i.e. removable
It unloads.This kind of structure can play the role of mechanical fasteners to a certain extent, but two nut pressing faces are by justifying in practice
The triangle tongue and groove that the heart uniformly distributes outward cannot achieve mutual cooperation, so can not achieve positive nut and reversed nut
Mutually locking function, under vibration forward and reverse nut can loosen in succession.
Invention content
Goal of the invention：The present invention, which mainly aims at, solves this above-mentioned technical problem, and a kind of double nut proposed is anti-
Clamp device is moved to locking thread.
To achieve the goals above, present invention employs the following technical solutions：A kind of double nut reverse thread is anti-loosening
Clamp device is made of forward and reverse two-flight screw, fastening nut and stop nut, positioning pin, it is characterised in that fastening nut leans on
The part closely fastened, stop nut is close to fastening nut, and the rotation direction of thread of fastening nut and stop nut is on the contrary, fastening spiral shell
When mother is right-handed thread, stop nut is left hand thread, and when fastening nut is left hand thread, stop nut is right-handed thread；Tightly
Gu nut is close to there are one the settings of the side of stop nut, two or more fastening nut blind holes, if it is two or more tight
Gu then fastening nut blind hole is distributed on same circle nut blind hole；Stop nut be first arranged close to fastening nut there are one, two
A or multiple stop nut blind holes, if it is two or more stop nut blind holes, then stop nut blind hole is distributed in same circle
On；The stop nut blind via bottom of stop nut is provided with elastic device；The stop nut that positioning pin is set to stop nut is blind
Kong Zhong can be moved along blind hole central axis；Positioning pin is interspersed when the side of fastening nut and the side of stop nut contact
Between the fastening nut blind hole of fastening nut and the stop nut blind hole of stop nut.The stop nut blind hole bottom of stop nut
The elastic device of portion's setting, elastic device are rubber sheet gasket or spring.The cross section of positioning pin is round, ellipse or polygon
Shape.Elastic device, positioning pin can be set in the fastening nut blind hole of fastening nut.A kind of double nut reverse thread is anti-loosening
Clamp device needs to use special installation clip, and the both ends for installing clip are made of two panels in left and right, the right side of left panel
It is provided with semicircle orifice, semicircle orifice is provided on the left of right panel.
Advantageous effect：The present invention can efficiently solve railway, train, automobile and Other Engineering mechanized equipment because equipment is continuous
Ground vibration causes the common bolt device of fixed equipment to occur to loosen and the equipment breakdown of initiation, thus is conducive to improve vibration
The safety of equipment in use.Instead of anti-loosening methods of tradition such as various certificates, nylon nut, live dispensings, simultaneously
The piece surface being fastenedly connected will not be damaged.
Description of the drawings
Fig. 1 is a kind of stereogram of double nut reverse thread anti-loosing fixing device；
Fig. 2 is a kind of perspective view of double nut reverse thread anti-loosing fixing device；
Fig. 3 is a kind of elevational perspective view of double nut reverse thread anti-loosing fixing device；
Fig. 4 is a kind of birds-eye perspective of double nut reverse thread anti-loosing fixing device；
Fig. 5 is that a kind of double nut reverse thread anti-loosing fixing device installs clip stereogram；
In figure：1, fastening nut, 2, fastening nut screw hole, 3, fastening nut blind hole, 4, positioning pin, 5, stop nut, 6, limit
The screw hole of nut, 7, stop nut blind hole, 8, elastic device, 9, stop nut screw rod, 10, fastening nut screw rod, 11, bolt head
Portion, 12, two panels in left and right, 13, semicircle orifice.
Specific implementation mode：
Further explanation is done to the present invention below in conjunction with the accompanying drawings.
As shown in Figure 1, a kind of double nut reverse thread anti-loosing fixing device of the present invention is by forward and reverse two-flight screw, fastening
Nut 1 and stop nut 5, positioning pin 4 are constituted, it is characterised in that for fastening nut 1 close to the part fastened, stop nut 5 is close
The rotation direction of thread of fastening nut 1, fastening nut 1 and stop nut 5 limits spiral shell on the contrary, when fastening nut 1 is right-handed thread
Mother 5 is left hand thread, and when fastening nut 1 is left hand thread, stop nut 5 is right-handed thread；Fastening nut 1 is close to stop nut
There are one 5 side settings, two or more fastening nut blind holes 3, is then fastened if it is two or more fastening nut blind holes 3
Nut blind hole 3 is distributed on same circle；Stop nut 5 be first arranged close to fastening nut 1 there are one, two or more limit spiral shells
Female blind hole 7, if it is two or more stop nut blind holes 7, then stop nut blind hole 7 is distributed on same circle；Stop nut 5
7 bottom of stop nut blind hole be provided with elastic device 8, elastic device 8 is rubber sheet gasket or spring；Positioning pin 4 is set to limit
In the stop nut blind hole 7 of position nut 5, it can be moved along 7 central axis of stop nut blind hole；The side of fastening nut 1 with
Positioning pin 4 is interspersed between fastening nut blind hole 3 and stop nut blind hole 7 when the side contact of stop nut 5.Stop nut is blind
The elastic device 8 of 7 bottom of hole setting, elastic device 8 are rubber sheet gasket or spring.The cross section of positioning pin 4 is round, ellipse
Or polygon.Elastic device 8, positioning pin 4 can be set in the fastening nut blind hole 3 of fastening nut.A kind of double nut is reversed
Locking thread moves clamp device and needs to use special installation clip, and the both ends for installing clip are made of two panels 12 in left and right,
It is provided with semicircle orifice 13 on the right side of left panel, semicircle orifice 13 is provided on the left of right panel.
The method of operation：The hole that forward and reverse two-flight screw is passed through to connecting elements when use, first puts on and is provided with blind hole
Fastening nut 1 is screwed, is fastened.Stop when fastening nut 1 reaches specified torque, put on dedicated installation clip at this time,
The panel 12 of left and right two for installing clip merges, and the semicircle orifice 13 of left panel and the semicircle orifice 13 of right panel composition one are whole at this time
The circular hole of body, can only by screw rod, then put on again be provided with blind hole, positioning pin stop nut 5, screwed, fastened.Position
It is pressed on two panels in left and right in the end of the positioning pin 4 in the stop nut blind hole 6 of stop nut 5, so as to avoid positioning
Pin 4 when stop nut 7 rotates with being directly caught in the fastening nut blind hole 3 of fastening nut 1.When stop nut 5 is close to fastening
When nut 1, the contact surface of fastening nut 1 can produce the positioning pin 4 of stop nut 5 by installing the panel 12 of left and right two of clip
Raw pressure, positioning pin 4 are compressed, and with constantly screwing for stop nut 5, the positioning pin of stop nut 5 is constantly pressed into limit
In nut blind hole 7, until the positioning pin 4 of stop nut 5 is caught in the blind hole of stop nut 5 completely, dedicated installation is unclamped at this time
The positioning pin 4 of clip, stop nut 5 can stretch moment, then rotary stopper nut 5, the positioning pin 4 in stop nut blind hole 7
It will be caught in the fastening nut blind hole 3 of fastening nut 1.Positioning pin 4 is interspersed in fastening nut blind hole 3 and stop nut blind hole 7
In, positioning pin 4 has limited the relative displacement of fastening nut 1 and stop nut 5, to realize right-handed nut and left-handed nut
Interlock function.If encountering vibrations fastening nut 1 and stop nut 5 can rotate to the direction unscrewed, and fastening nut and limit
Anti-loosening effect is played on the contrary, the self-locking function of double nut thus may be implemented in the position direction of rotation that unscrews of nut.Very well
Solve the problems, such as that bolt and nut fastener is loosened in the environment of Long-term Vibration, fallen, ensure that and work in vibration environment
The reliability of middle machanical fastener and safety.
The ingenious combination by positive and negative two-flight screw screw rod and left-hand nut, right-handed thread nut of the present invention,
The two is set to be relatively fixed, left-hand nut and right-handed thread nut will form an interlocking by blind hole and movable positioning pin
Body will finally realize Bidirectional locking so that any loosening will not occur for fastener, ensure that reliability and the safety of equipment.
Double nut reverse thread anti-loosing fixing device can be non-resilient using the positioning pin of different materials according to the difference of working environment
End, to realize different functions and effect.If it is permanent fastenings, then the material of high intensity can be used, such as
The materials such as steel, high-strength alloy realize permanent self-locking function.It, then can be with if it is the connector for being likely to require dismounting
The materials such as use intensity smaller material, such as aluminium, aluminium alloy.If it is the fastener for being frequently necessary to dismounting, then can make
With materials such as glass, plastics, rubber.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (5)
1. a kind of double nut reverse thread anti-loosing fixing device by forward and reverse two-flight screw, fastening nut and stop nut,
Positioning pin is constituted, it is characterised in that fastening nut is close to the part of fastening, and stop nut is close to fastening nut, fastening nut and limit
The rotation direction of thread of position nut is on the contrary, when fastening nut is right-handed thread, and stop nut is left hand thread, and fastening nut is a left side
When revolving screw thread, stop nut is right-handed thread；Fastening nut close to there are one the settings of the side of stop nut, it is two or more tight
Gu nut blind hole, if it is two or more fastening nut blind holes, then fastening nut blind hole is distributed on same circle；Stop nut
Close to fastening nut be first arranged there are one, two or more stop nut blind holes, it is blind if it is two or more stop nuts
Then stop nut blind hole is distributed on same circle in hole；The stop nut blind via bottom of stop nut is provided with elastic device；Positioning
Pin is set in the stop nut blind hole of stop nut, can be moved along blind hole central axis；The side of fastening nut and limit
Positioning pin is interspersed in the fastening nut blind hole of fastening nut and the stop nut blind hole of stop nut when the side contact of position nut
Between.
2. a kind of double nut reverse thread anti-loosing fixing device according to claim 1, it is characterised in that stop nut
Stop nut blind via bottom setting elastic device, elastic device be rubber sheet gasket or spring.
3. a kind of double nut reverse thread anti-loosing fixing device according to claim 1, it is characterised in that positioning pin
Cross section is round, ellipse or polygon.
4. a kind of double nut reverse thread anti-loosing fixing device according to claim 1, it is characterised in that elastic device,
Positioning pin can be set in the fastening nut blind hole of fastening nut.
5. a kind of double nut reverse thread anti-loosing fixing device according to claim 1, it is characterised in that a kind of double spiral shells
Female reverse thread anti-loosing fixing device needs to use special installation clip, installs the both ends of clip by the two panel groups in left and right
At being provided with semicircle orifice on the right side of left panel, semicircle orifice be provided on the left of right panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810457982.5A CN108425933A (en) | 2018-05-14 | 2018-05-14 | A kind of double nut reverse thread anti-loosing fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810457982.5A CN108425933A (en) | 2018-05-14 | 2018-05-14 | A kind of double nut reverse thread anti-loosing fixing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108425933A true CN108425933A (en) | 2018-08-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810457982.5A Pending CN108425933A (en) | 2018-05-14 | 2018-05-14 | A kind of double nut reverse thread anti-loosing fixing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108425933A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020083273A1 (en) * | 2018-10-23 | 2020-04-30 | 卢玉珊 | Anti-loosening, easy-open/close threaded fixing assembly and connecting structure |
-
2018
- 2018-05-14 CN CN201810457982.5A patent/CN108425933A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020083273A1 (en) * | 2018-10-23 | 2020-04-30 | 卢玉珊 | Anti-loosening, easy-open/close threaded fixing assembly and connecting structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180821 |
|
| WD01 | Invention patent application deemed withdrawn after publication |