CN110307232A - A kind of screw for preventing from loosening - Google Patents
A kind of screw for preventing from loosening Download PDFInfo
- Publication number
- CN110307232A CN110307232A CN201910595900.8A CN201910595900A CN110307232A CN 110307232 A CN110307232 A CN 110307232A CN 201910595900 A CN201910595900 A CN 201910595900A CN 110307232 A CN110307232 A CN 110307232A
- Authority
- CN
- China
- Prior art keywords
- screw
- screw rod
- lock
- rod
- dilating
- 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
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- 230000000916 dilatatory effect Effects 0.000 claims abstract description 39
- 230000005540 biological transmission Effects 0.000 claims description 28
- 239000007787 solid Substances 0.000 claims 3
- 238000000926 separation method Methods 0.000 abstract description 2
- 230000003068 static effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 206010044565 Tremor Diseases 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010338 mechanical breakdown Methods 0.000 description 1
- 238000000034 method Methods 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
- F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
- F16B13/04—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front
- F16B13/06—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve
- F16B13/063—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve by the use of an expander
- F16B13/066—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve by the use of an expander fastened by extracting a separate expander-part, actuated by the screw, nail or the like
Abstract
A kind of screw for preventing from loosening, including nut, screw rod, expand screw rod, nut, dilating screw, locking device, lock sawtooth, swing ball, lock groove, swing ball fixture block, fixture block drive rod, reset spring, nut side is fixedly connected with screw rod, screw rod one end is fixedly connected with nut and the other end is fixedly connected with expansion screw rod, the junction of screw rod and expansion screw rod is equipped with locking groove, locking sawtooth is equipped in groove, gap is equipped among expansion screw rod for hollow and expansion screw rod annulus to expand screw rod separation up and down, dilating screw is equipped with screw thread, the diameter of dilating screw is more bigger than the internal diameter for expanding screw rod, the present invention is because of the design by expansion screw rod and dilating screw, dilating screw is screwed into the internal diameter of expansion screw rod again after nut is tightened, so that the outer diameter of expansion screw rod increases, so that nut is difficult to fall off, pass through locking simultaneously Device prevents nut loosening so that dilating screw is all firmly tightened in expansion screw inner diameter either under static or dither state.
Description
Technical field
The present invention relates to screw cap nut technical field more particularly to a kind of screws for preventing from loosening.
Background technique
Screw is the physics and mathematical principle of the inclined-plane circular rotating and frictional force using object, is fastened by easy stages
The tool of implements parts.Screw is the general saying of fastener, daily pet phrase.Screw is work indispensable in daily life
Industry necessity: the minimum screw that such as camera, glasses, clock and watch, electronics use；TV, electric product, musical instrument, furniture etc.
General screw；Large-scale screw, nut are then used as engineering, building, bridge；Traffic tool, aircraft, electric car, automobile etc. are then
It is used in combination for big primary screw.Screw industrially bears vital task, as long as there is industry on the earth, the function of screw is eternal
It is important.Screw is the joint invention in people's production and living over the past thousands of years, and from the point of view of application field, it is the first big of the mankind
Invention.But in routine use, in use, screw often occurs to loosen now especially on the instrument of some easy shakes
As if instrument does not overhaul for a long time, screw even meeting loose or dislocation leads to mechanical breakdown, more serious to will affect
The life security of operator.
Summary of the invention
It is mentioned above in the background art one to solve the purpose of the present invention is to provide a kind of screw for preventing from loosening
The problem of fixed screw on instrument often shaken a bit is easy to appear loosening.
The present invention a kind of purpose and effect of the screw for preventing from loosening, are reached by technological means in detail below:
A kind of screw for preventing from loosening, including nut, screw rod expand screw rod, nut, dilating screw, locking device, cross
Bayonet, locks sawtooth, and swing ball locks groove, swing ball fixture block, fixture block drive rod, reset spring, bolt, transmission rod, fixed link spiral shell
Bolt, fixed link, lock-bit bar bolt, lock-bit bar, card wheel, lock-bit bar fixed point, lock-bit bar spring, driving hole, the nut side
It is fixedly connected with screw rod, described screw rod one end is fixedly connected with nut and the other end is fixedly connected with expansion screw rod, the screw rod and expansion
The junction of screw rod is equipped with locking groove, and locking sawtooth is equipped in the groove, is hollow among the expansion screw rod and expands
It opens screw rod annulus to make to expand screw rod separation up and down equipped with gap, the expansion screw inner diameter is equipped with screw thread, the dilating screw
One end is fixedly connected with locking device and the surface of the other end is equipped with cross bayonet, and the dilating screw is equipped with screw thread, the expansion
The diameter of screw rod is more bigger than the internal diameter for expanding screw rod.
Further, the right end of the screw rod is fixedly connected with expansion screw rod, and the right end of the screw rod is equipped with locking groove, described
The inner ring of locking groove is uniformly fixed with locking sawtooth.
Further, the expansion screw rod is hollow form and ring wall is equipped with gap and to expand screw rod between the upper and lower every the expansion
Screw thread is equipped in screw rod and internal diameter is identical as groove internal diameter is locked.
Further, the dilating screw left end is fixedly connected with locking device and surface is equipped with screw thread, the locking device
Diameter is smaller than the diameter of dilating screw, and the diameter of the dilating screw is more bigger than the internal diameter for expanding screw rod.
Further, the locking device internal activity connects swing ball, is flexibly connected swing ball fixture block at left and right sides of the swing ball,
Two pieces of left and right swing ball fixture block is arc-shaped and is stuck in swing ball wherein.
Further, swing ball fixture block one end is flexibly connected swing ball and the other end is fixedly connected with fixture block drive rod, the card
Reset spring is fixedly connected between block drive rod and swing ball fixture block.
Further, the both ends of the locking device diameter are equipped with driving hole, and the fixture block drive rod passes through driving hole and a left side
End is bolted transmission rod, passes through fixed link bolt flexible connection fixed link, fixed link left end spiral shell above the transmission rod
It tethers and connects transmission rod and right end is fixedly connected on locking device surface.
Further, lock-bit bar, described lock-bit bar one end bolt are flexibly connected by lock-bit bar bolt below the transmission rod
It connects transmission rod and the other end is rotatablely connected card wheel, the card wheel snap lock sawtooth.
Further, lock-bit bar fixed point is fixedly connected among the lock-bit bar, the lock-bit bar spring one end is fixedly connected
The lock-bit bar fixed point and other end is fixedly connected with bolt.
In comparison with existing structure, the present invention has the advantage that
1, the present invention is because being twisted dilating screw after nut is screwed into screw rod by the design of expansion screw rod and dilating screw
Enter to expand the internal diameter of screw rod, since the diameter of dilating screw is slightly larger than the internal diameter for expanding screw rod, so after dilating screw is screwed into,
Expansion screw rod periphery can be expanded slightly, so that nut is difficult to loosen, while nut has an inside extruding force to expansion screw rod, together
When but also dilating screw is difficult to loosen.
2, the present invention is because of the design by locking device, during screw is shaken, swing ball inside locking device with
Shake together, due to the swing ball fixture block stuck position that swing ball is controlled, during swing ball shake, transmit the force to swing ball
Fixture block is allowed to left and right displacement, swing ball fixture block outwardly against when, transmission rod movement is driven by fixture block drive rod, because above transmission rod
It is fixed, so detent drive rod drives transmission rod moved beneath, the lock-bit bar being connected to below transmission rod is driven to squeeze lock therewith
Tight sawtooth, lock-bit bar cooperate lock-bit bar spring again, allow lock-bit bar to repeat flexible movement, then lock by card wheel detent
Sawtooth drives dilating screw more more stubborn tighter so that locking device keeps a direction rotation during screw shake, into
One step prevents nut loosening.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention；
Fig. 2 is each design of part schematic diagram of the invention；
Fig. 3 is top view of the invention；
Fig. 4 is expansion inside screw figure of the invention；
Fig. 5 is locking device interior view of the invention；
Fig. 6 is enlarged drawing at A in Fig. 5 of the invention.
In figure: 1- nut, 2- screw rod, 3- expand screw rod, 4- nut, 5- dilating screw, 6- locking device, 7- cross clip
Mouthful, 8- locks sawtooth, 9- swing ball, and 10- locks groove, 11- swing ball fixture block, 12- fixture block drive rod, 13- reset spring, 14- spiral shell
Bolt, 15- transmission rod, 16- fixed link bolt, 17- fixed link, 18- lock-bit bar bolt, 19- lock-bit bar, 20- card wheel, 21- lock-bit
Bar fixed point, 22- lock-bit bar spring, 23- driving hole.
Specific embodiment
In the following, will be explained in the embodiment of the present invention, the example is shown in the accompanying drawings and the description below.Although will combine
The exemplary embodiment description present invention, it is to be understood that the description is not really wanted to limit the invention to the illustrative implementation
Example.On the contrary, the present invention will not only cover the exemplary embodiment, but also cover various replacements, it is changing, equivalent and
Other embodiments may include in the spirit and scope of the present invention as defined in the appended claims.
Referring to Fig. 1 to attached drawing 6, a kind of screw for preventing from loosening, including nut 1, screw rod 2, screw rod 3 is expanded, nut 4 is swollen
Swollen screw rod 5, locking device 6, cross bayonet 7 lock sawtooth 8, and swing ball 9 locks groove 10, swing ball fixture block 11, fixture block drive rod
12, reset spring 13, bolt 14, transmission rod 15, fixed link bolt 16, fixed link 17, lock-bit bar bolt 18, lock-bit bar 19, card
Wheel 20, lock-bit bar fixed point 21, lock-bit bar spring 22, driving hole 23, it is characterised in that: 1 side of nut is fixedly connected with screw rod 2,
2 one end of screw rod is fixedly connected with nut 1 and the other end is fixedly connected with expansion screw rod 3, and screw rod 2 and the junction of expansion screw rod 3 are equipped with
Groove 10 is locked, locking sawtooth 8 is equipped in groove 10, it is hollow for expanding among screw rod 3 and expansion 3 annulus of screw rod is equipped with gap
So that expansion about 3 screw rod separate, expansion 3 internal diameter of screw rod be equipped with screw thread, 5 one end of dilating screw be fixedly connected lock device 6 and
The surface of the other end is equipped with cross bayonet 7, and dilating screw 5 is equipped with screw thread, internal diameter of the diameter of dilating screw 5 than expanding screw rod 3
It is bigger.
Wherein, the right end of screw rod 2 is fixedly connected with expansion screw rod 3, and the right end of screw rod 2 is equipped with locking groove 10, locks groove
10 inner ring is uniformly fixed with locking sawtooth 10, device 6 is locked, so that the more stubborn dilating screw 5 the tighter.
Wherein, expansion screw rod 3 is hollow form and ring wall is equipped with gap and to expand screw rod 3 between the upper and lower every in expansion screw rod 3
It is equipped with screw thread and internal diameter is identical as locking 10 internal diameter of groove, expansion screw rod 3 is expanded.
Wherein, 5 left end of dilating screw is fixedly connected with locking device 6 and surface is equipped with screw thread, and the diameter of locking device 6 is than swollen
The diameter of swollen screw rod 5 is small, and the diameter of dilating screw 5 is more bigger than the internal diameter for expanding screw rod 3, so that dilating screw 5 is expanded after being screwed into
Screw rod 3 can be expanded, and prevent nut 4 from falling off.
Wherein, 6 internal activity of locking device connects swing ball 9, and swing ball fixture block 11, left and right are flexibly connected at left and right sides of swing ball 9
Two pieces of swing ball fixture blocks 11 are arc-shaped and are stuck in swing ball 9 wherein, so that the power of swing ball 9 is sufficiently transferred on swing ball fixture block 11.
Wherein, 11 one end of swing ball fixture block is flexibly connected swing ball 9 and the other end is fixedly connected with fixture block drive rod 12, fixture block transmission
It is fixedly connected with reset spring 13 between bar 22 and swing ball fixture block 11, enables the 12 left and right repeating motion of fixture block drive rod.
Wherein, the both ends of 6 diameter of locking device are equipped with driving hole 23, and fixture block drive rod 12 passes through driving hole 23 and left end spiral shell
It tethers and connects transmission rod 15, fixed link 17,17 left end bolt of fixed link are flexibly connected by fixed link bolt 16 above transmission rod 15
It connects transmission rod 15 and right end is fixedly connected on 6 surface of locking device, the power of swing ball 9 is enabled more to be transmitted to lock-bit bar,
Reduce the loss of power.
Wherein, lock-bit bar 19 is flexibly connected by lock-bit bar bolt 18 below transmission rod 15,19 one end bolt of lock-bit bar connects
Connect transmission rod 15 and other end rotation connection card wheel 20,20 snap lock sawtooth 8 of card wheel, so that locking device 6 can only a side
To rotation.
Wherein, lock-bit bar fixed point 21 is fixedly connected among lock-bit bar 19,22 one end of lock-bit bar spring is fixedly connected with lock-bit
Bar fixed point 21 and the other end are fixedly connected with bolt 14 so that lock-bit bar 19 always detent locking sawtooth 8 on.
The working principle of the present embodiment:
When using the present invention, screw rod 2 is inserted into needs in fixed device hole first, then in the hole other end by nut
4 are screwed into from expansion screw rod 3, after nut 4 is tightened, then dilating screw 5 are screwed into the internal diameter for expanding screw rod 3, until dilating screw 5
It is difficult to be screwed into again, since the diameter of dilating screw 5 is slightly larger than the internal diameter for expanding screw rod 3, so expanding after dilating screw 5 is screwed into
Opening 3 periphery of screw rod can expand slightly, so that nut 4 is difficult to loosen, while 4 pairs of nut expansion screw rods 3 have an inside extruding force,
Simultaneously but also dilating screw 5 is difficult to loosen, during screw shake, swing ball 9 inside locking device 6 with trembling together
It is dynamic, since 11 stuck position of swing ball fixture block that swing ball 9 is controlled transmits the force to swing ball fixture block during swing ball 9 is shaken
11 are allowed to left and right displacement, swing ball fixture block 11 outwardly against when, drive transmission rod 15 to move by fixture block drive rod 12, because of transmission rod
15 tops are fixed, so detent drive rod 12 drives 15 moved beneath of transmission rod, drive be connected to 15 lower section of transmission rod therewith
Lock-bit bar 19 squeezes locking sawtooth 8, and lock-bit bar 19 cooperates lock-bit bar spring 22 again, so that driving card wheel 20 when lock-bit bar 19 is stretched out
Locking sawtooth 8 is squeezed, so that locking device 6 rotates, when lock-bit bar 19 is retracted, then is caught in next locking sawtooth 8, so that
During screw is shaken, locking device 6 keeps a direction rotation, drives dilating screw 5 more more stubborn tighter, further prevents spiral shell
Mother 4 loosens.
In conclusion although the present invention is described in detail referring to the foregoing embodiments, for the technology of this field
For personnel, it is still possible to modify the technical solutions described in the foregoing embodiments, or to part of technology
Feature is equivalently replaced, all within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on, and
It should be included within protection scope of the present invention.
Claims (9)
1. a kind of screw for preventing from loosening, including nut (1), screw rod (2) are expanded screw rod (3), nut (4), dilating screw (5),
Locking device (6), cross bayonet (7) are locked sawtooth (8), swing ball (9), are locked groove (10), swing ball fixture block (11), and fixture block passes
Lever (12), reset spring (13), bolt (14), transmission rod (15), fixed link bolt (16), fixed link (17), lock-bit bar spiral shell
Bolt (18), lock-bit bar (19), card wheel (20), lock-bit bar fixed point (21), lock-bit bar spring (22), driving hole (23), feature
Be: nut (1) side is fixedly connected screw rod (2), and described screw rod (2) one end is fixedly connected with nut (1) and the other end is solid
The junction of fixed connection expansion screw rod (3), the screw rod (2) and expansion screw rod (3) is equipped with locking groove (10), the groove
(10) it is equipped with locking sawtooth (8) in, makes for hollow and expansion screw rod (3) annulus equipped with gap among the expansion screw rod (3)
Screw rod (3) must be expanded to separate up and down, expansion screw rod (3) internal diameter is equipped with screw thread, and described dilating screw (5) one end is fixedly connected
The surface of locking device (6) and the other end is equipped with cross bayonet (7), and the dilating screw (5) is equipped with screw thread, the dilating screw
(5) diameter is more bigger than the internal diameter for expanding screw rod (3).
2. a kind of screw for preventing from loosening according to claim 1, it is characterised in that: the right end of the screw rod (2) is fixed
Connection expansion screw rod (3), the right end of the screw rod (2) are equipped with locking groove (10), and the inner ring of locking groove (10) is uniform
It is fixed with locking sawtooth (10).
3. a kind of screw for preventing from loosening according to claim 1, it is characterised in that: the expansion screw rod (3) is hollow
Shape and ring wall, which are equipped with gap and to expand screw rod (3), is equipped with screw thread and internal diameter and lock every, the expansion screw rod (3) is interior between the upper and lower
Tight groove (10) internal diameter is identical.
4. a kind of screw for preventing from loosening according to claim 1, it is characterised in that: dilating screw (5) left end is solid
Surely locking device (6) are connected and surface is equipped with screw thread, the diameter of the locking device (6) is smaller than the diameter of dilating screw (5), institute
The diameter for stating dilating screw (5) is more bigger than the internal diameter for expanding screw rod (3).
5. a kind of screw for preventing from loosening according to claim 1, it is characterised in that: living inside the locking device (6)
Dynamic connection swing ball (9), swing ball (9) left and right sides are flexibly connected swing ball fixture block (11), two pieces of left and right swing ball fixture block
(11) it is arc-shaped and is stuck in swing ball (9) wherein.
6. a kind of screw for preventing from loosening according to claim 1, it is characterised in that: described swing ball fixture block (11) one end is living
It moves connection swing ball (9) and the other end is fixedly connected fixture block drive rod (12), the fixture block drive rod (22) and swing ball fixture block (11)
Between be fixedly connected with reset spring (13).
7. a kind of screw for preventing from loosening according to claim 1, it is characterised in that: locking device (6) diameter
Both ends are equipped with driving hole (23), and the fixture block drive rod (12) passes through driving hole (23) and left end is bolted transmission rod (15),
Fixed link (17) are flexibly connected by fixed link bolt (16) above the transmission rod (15), fixed link (17) left end bolt
It connects transmission rod (15) and right end is fixedly connected on locking device (6) surface.
8. a kind of screw for preventing from loosening according to claim 1, it is characterised in that: pass through below the transmission rod (15)
Lock-bit bar bolt (18) is flexibly connected lock-bit bar (19), and described lock-bit bar (19) one end is bolted transmission rod (15) and the other end
It is rotatablely connected card wheel (20), card wheel (20) the snap lock sawtooth (8).
9. a kind of screw for preventing from loosening according to claim 1, it is characterised in that: fixed among the lock-bit bar (19)
It connects lock-bit bar fixed point (21), described lock-bit bar spring (22) one end is fixedly connected with lock-bit bar fixed point (21) and the other end is solid
Surely bolt (14) are connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910595900.8A CN110307232B (en) | 2019-07-03 | 2019-07-03 | Screw capable of preventing loosening |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910595900.8A CN110307232B (en) | 2019-07-03 | 2019-07-03 | Screw capable of preventing loosening |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110307232A true CN110307232A (en) | 2019-10-08 |
| CN110307232B CN110307232B (en) | 2023-06-16 |
Family
ID=68079585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910595900.8A Active CN110307232B (en) | 2019-07-03 | 2019-07-03 | Screw capable of preventing loosening |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110307232B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110905897A (en) * | 2019-11-14 | 2020-03-24 | 深圳市大富科技股份有限公司 | Expansion screw |
| CN112303098A (en) * | 2020-11-17 | 2021-02-02 | 崔路晋 | Anti-loosening bolt fastener |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110905897A (en) * | 2019-11-14 | 2020-03-24 | 深圳市大富科技股份有限公司 | Expansion screw |
| CN112303098A (en) * | 2020-11-17 | 2021-02-02 | 崔路晋 | Anti-loosening bolt fastener |
| CN112303098B (en) * | 2020-11-17 | 2021-08-20 | 崔路晋 | Anti-loosening bolt fastener |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110307232B (en) | 2023-06-16 |
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Effective date of registration: 20230525 Address after: 317604 Damaiyu Economic Development Zone, Yuhuan, Taizhou City, Zhejiang Province Applicant after: Zhejiang Qiguan Precision Machinery Co.,Ltd. Address before: No. 25 Nanlei South Road, Yuyao City, Ningbo City, Zhejiang Province, 315400 Applicant before: Wang Zhongwen |
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