CN202833558U - Anti-loose elastic sheet nut - Google Patents
Anti-loose elastic sheet nut Download PDFInfo
- Publication number
- CN202833558U CN202833558U CN 201220410986 CN201220410986U CN202833558U CN 202833558 U CN202833558 U CN 202833558U CN 201220410986 CN201220410986 CN 201220410986 CN 201220410986 U CN201220410986 U CN 201220410986U CN 202833558 U CN202833558 U CN 202833558U
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- China
- Prior art keywords
- elastic
- shell fragment
- nut
- internal thread
- locking nut
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- 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.)
- Expired - Lifetime
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- 239000012634 fragment Substances 0.000 claims description 35
- 230000000694 effects Effects 0.000 description 7
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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- Bolts, Nuts, And Washers (AREA)
Abstract
The utility model provides an anti-loose elastic sheet nut. The anti-loose elastic sheet nut comprises a nut body and an elastic sheet, wherein the nut body is provided with internal threads; each internal thread is provided with a leading flank and a following flank and also comprises an inclined plane which is extended between the leading flank and the following flank; the joint between the inclined plane and the leading flank is more away from the axis of the internal thread compared with the joint between the inclined and the following flank; the included angle between the inclined plane and the axis of the internal thread is more than or equal to 15 DEG and less than or equal to 45 DEG; and the elastic sheet is fixed in the nut body. The anti-loose elastic sheet nut has high anti-loose capability and anti-off capability.
Description
Technical field
The utility model relates to a kind of nut, particularly relates to a kind of locking nut with elastic.
Background technique
Nuts and bolt is one of most widely used fastening piece in the modern mechanical structure.Plain nut and bolt generally have V thread screw, and it is loosening that being connected to of nuts and bolt is prone under the strenuous vibration, even self falling, cause the fault of equipment and relate to the accident of personal security.
Nut with elastic is as a kind of new type nut, and anti-loosing effect is better.When bolts and nuts cooperated, the shell fragment on the nut can produce deformation, applied certain positive pressure in screw thread, thereby so that screw thread produces friction torque, stoped the nut counter-rotating, played the anticreep effect.
Although this nut with elastic can provide preferably anticreep ability by shell fragment, in the high occasion of ask for something, its anti-loose ability still can not be satisfactory.Because the internal thread on the nut body of nut with elastic also is V thread screw.Although V thread screw can not get loose when static load and change of working degree are little automatically, to impact, under the effect of vibration and variable load, pretightening force may be at a certain pop-off, and nut still might become flexible.
The model utility content
Because the defects of prior art, technical problem to be solved in the utility model provides a kind of good anti-loose ability and locking nut with elastic of anticreep ability of having concurrently.
Locking nut with elastic provided by the utility model comprises nut body and shell fragment.Nut body has internal thread, the described internal thread of every tooth has guiding tooth side and follows the tooth side, described internal thread also is included in described guiding tooth side and the described inclined-plane that extends between the tooth side of following, described inclined-plane is compared with described joint of following the tooth side with described inclined-plane with the joint of described guiding tooth side, further from the axis of described internal thread; Angle between the axis of described inclined-plane and described internal thread is more than or equal to 15 degree, is less than or equal to 45 degree.Described shell fragment is fixed in the described nut body.
Preferably, the angle between the axis of described inclined-plane and described internal thread is 30 degree.
Preferably, described shell fragment is fixed in the top of described nut body.
Preferably, described shell fragment is integrated impact briquetting.
Preferably, described shell fragment has through hole, and has a pair of symmetrically arranged dentation tab along the periphery of described through hole.
Preferably, described shell fragment has through hole, and has equally distributed three dentation tabs along the periphery of described through hole.
Preferably, described through hole and described internal thread coaxial line.
Preferably, the external diameter of described shell fragment is greater than the large footpath of described internal thread.
Preferably, described shell fragment is tinsel.
Preferably, described shell fragment is fixed in the described nut body by the lug boss of nut body.
The internal thread of locking nut with elastic of the present utility model owing to adopted is executed must firm screw thread, bolt is when stressed, externally threaded crest can be resisted against on the inclined-plane of internal thread of nut body, produce very large coupling mechanism force, prevent that effectively nut from getting loose from bolt, thereby realized the good anti-loose ability of screw pair.Further, shell fragment can tightly prop up the outside thread of bolt, and larger frictional force is provided, and prevents that nut from freely screwing out from bolt, thereby has prevented that effectively nut from spinning off from bolt.Therefore, self-locking nut of the present utility model has excellent anti-loose ability and anticreep ability concurrently.
Be described further below with reference to the technique effect of accompanying drawing to design of the present utility model, concrete structure and generation, to understand fully the purpose of this utility model, feature and effect.
Description of drawings
Fig. 1 is the sectional drawing of the locking nut with elastic in the preferred embodiment of the present utility model.
Fig. 2 is the structural representation of the shell fragment on the locking nut with elastic among Fig. 1.
Fig. 3 is the locking nut with elastic and the mated condition figure that is assemblied in the bolt on the mechanical part among Fig. 1.
Fig. 4 is locking nut with elastic among Fig. 3 and the plan view of bolt.
Fig. 5 is the structural representation of the shell fragment on the locking nut with elastic in another preferred embodiment.
Embodiment
As shown in Figure 1, the locking nut with elastic 100 of preferred embodiment of the present utility model is comprised of nut body 110 and shell fragment 120.
Nut body 110 has adopted the female thread structure of " Shi Bilao ".Every tooth internal thread has guiding tooth side 111 and follows tooth side 112, also be included in guiding tooth side 111 and follow the inclined-plane 113 that extends between the tooth side 112, and inclined-plane 113 is compared with the joint of following tooth side 112 with inclined-plane 113 with the joint of guiding tooth side 111, further from the axis of internal thread.Angle β between the axis of inclined-plane 113 and internal thread can be 15 degree～45 degree.In the present embodiment, β is preferably 30 degree.
Please also refer to Fig. 1 and Fig. 2, shell fragment 120 is roughly ring, and its external diameter is greater than the large footpath of the internal thread of nut body 110.Shell fragment 120 has through hole, has the dentation tab 121 of a pair of symmetry along its inner rim place.Shell fragment 120 is integrated stamping forming tinsel, and lug boss 114 forms by the thin walled structures on punching nut body 110 tops, and lug boss 114 is firmly fixed at shell fragment 120 on the top of nut body 110.The internal thread coaxial line of the through hole of shell fragment 120 and nut body 110.
As shown in Figure 5, in another embodiment, locking nut with elastic can have shell fragment 120 ', and shell fragment 120 ' has three along the equally distributed dentation tab 121 ' of inner edge.Certainly, in other embodiments, locking nut with elastic also can have other multi-form shell fragments, for example has the shell fragment of one or more tabs, and the utility model is not restricted this.
Please also refer to Fig. 1 to Fig. 4, Fig. 3 and Fig. 4 have shown the state that bolt 200 cooperates with locking nut with elastic 100.Bolt 200 is used for fastening first component 300 and second component 400 with locking nut with elastic 100.Along with locking nut with elastic 100 is threaded on the bolt 200, because the ultimate range D between the inner edge of two dentation tabs 121 is less than the path of bolt 200, the dentation tab 121 of shell fragment 120 touches screw rod 210, progressively produce deformation, its elastic force so that dentation tab 121 tightly be pressed on the screw thread of screw rod 210, thereby strengthened the frictional force between shell fragment 120 and the screw rod 210, relied on this frictional force, just can reach preferably anticreep effect.
On the other hand, externally threaded another part crest of bolt 200 is resisted against on the inclined-plane 113 of internal thread of screw thread body 110, produces very large coupling mechanism force.Because the change of the thread form of internal thread, so that the normal force that produces at internal thread and outside thread point of contact becomes the angle more than or equal to 45 degree with the axis of bolt 200, in the present embodiment, be 60 to spend angles, rather than as V thread screw, 30 spend angles.Obviously, after thread form changed, the normal pressure on the screw thread increased, and therefore, the locking frictional force that produces is also just inevitable have been increased greatly.Therefore, prevented that effectively nut with elastic 100 from getting loose from bolt 200, thereby further strengthened anti-loosing effect.
In sum, the locking nut with elastic in the present embodiment can closely screw with bolt by screw pair and be connected, be difficult for unclamping, and when accidental cause cause nut have slightly loosening after, screw bolt and nut can not break away from each other yet.Therefore, locking nut with elastic of the present utility model has excellent anti-loose ability and anticreep ability concurrently.
More than describe preferred embodiment of the present utility model in detail.The ordinary skill that should be appreciated that related domain need not creative work and just can make many modifications and variations according to design of the present utility model.Therefore, all in the art technician comply with design of the present utility model on the basis of existing technology by the available technological scheme of logical analysis, reasoning, or a limited experiment, all should be in claim protection domain of the present utility model.
Claims (10)
1. a locking nut with elastic is characterized in that, comprising:
Nut body with internal thread, the described internal thread of every tooth has guiding tooth side and follows the tooth side, described internal thread also is included in described guiding tooth side and the described inclined-plane that extends between the tooth side of following, described inclined-plane is compared with described joint of following the tooth side with described inclined-plane with the joint of described guiding tooth side, further from the axis of described internal thread; Angle between the axis of described inclined-plane and described internal thread is more than or equal to 15 degree, is less than or equal to 45 degree; And
Shell fragment, described shell fragment is fixed in the described nut body.
2. locking nut with elastic as claimed in claim 1, the angle between the axis of wherein said inclined-plane and described internal thread are 30 degree.
3. locking nut with elastic as claimed in claim 1, wherein said shell fragment is fixed in the top of described nut body.
4. locking nut with elastic as claimed in claim 3, wherein said shell fragment is integrated impact briquetting.
5. locking nut with elastic as claimed in claim 4, wherein said shell fragment has through hole, and has a pair of symmetrically arranged dentation tab along the periphery of described through hole.
6. locking nut with elastic as claimed in claim 4, wherein said shell fragment has through hole, and has equally distributed three dentation tabs along the periphery of described through hole.
7. such as claim 5 or 6 described locking nut with elastics, wherein said through hole and described internal thread coaxial line.
8. locking nut with elastic as claimed in claim 7, the external diameter of wherein said shell fragment is greater than the large footpath of described internal thread.
9. locking nut with elastic as claimed in claim 8, wherein said shell fragment is tinsel.
10. locking nut with elastic as claimed in claim 9, wherein said shell fragment is fixed in the described nut body by the lug boss of nut body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220410986 CN202833558U (en) | 2012-08-17 | 2012-08-17 | Anti-loose elastic sheet nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220410986 CN202833558U (en) | 2012-08-17 | 2012-08-17 | Anti-loose elastic sheet nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202833558U true CN202833558U (en) | 2013-03-27 |
Family
ID=47945271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220410986 Expired - Lifetime CN202833558U (en) | 2012-08-17 | 2012-08-17 | Anti-loose elastic sheet nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202833558U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104265749A (en) * | 2014-09-30 | 2015-01-07 | 泉州市锦汽机械配件有限公司 | Anti-loose self-locking nut and production method thereof |
| CN105179435A (en) * | 2015-09-18 | 2015-12-23 | 叶中洲 | Novel locking nut |
-
2012
- 2012-08-17 CN CN 201220410986 patent/CN202833558U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104265749A (en) * | 2014-09-30 | 2015-01-07 | 泉州市锦汽机械配件有限公司 | Anti-loose self-locking nut and production method thereof |
| CN105179435A (en) * | 2015-09-18 | 2015-12-23 | 叶中洲 | Novel locking nut |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHANGHAI DITE PRECISION FASTENER CO., LTD. Free format text: FORMER NAME: SHANGHAI DETROIT PRECISION FASTENER CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 3 building seventh, building 1055, Fu Hai Road, Jiading Industrial Zone, Shanghai, Jiading District, 201821 Patentee after: SHANGHAI DETROIT PRECISION FASTENER Co.,Ltd. Address before: 3 building seventh, building 1055, Fu Hai Road, Jiading Industrial Zone, Shanghai, Jiading District, 201821 Patentee before: SHANGHAI DETROIT PRECISION FASTENER Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130327 |