CN100560996C - Anti-loosing and anti-assembling nut - Google Patents
Anti-loosing and anti-assembling nut Download PDFInfo
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- CN100560996C CN100560996C CNB2006100539737A CN200610053973A CN100560996C CN 100560996 C CN100560996 C CN 100560996C CN B2006100539737 A CNB2006100539737 A CN B2006100539737A CN 200610053973 A CN200610053973 A CN 200610053973A CN 100560996 C CN100560996 C CN 100560996C
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- outer cover
- main body
- nut
- nut main
- loosing
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Abstract
The present invention relates to a kind of fastening piece, be specifically related to a kind of anti-loosing and anti-assembling nut, comprise nut main body and outer cover, the center of described nut main body is provided with an inner bolt hole; The upper surface of described nut main body is provided with at least one binding groove, and described binding groove is surrounded by a downward-sloping guide surface and a prevent surface and forms; Described outer cover center is provided with vestibule, and the outer wall place of described outer cover is provided with forced section, and the inwall place of described outer cover upper surface is provided with and described binding groove quantity elastic pieces, and described spring sheet is downward-sloping and can stretch in the described binding groove; Described nut main body is contained in the vestibule of described outer cover.Advantage of the present invention is to screw in easily, can not block and can not wear and tear because of stressed excessive generation in the process that screws in skidding take place.
Description
Technical field
The present invention relates to a kind of fastening piece, be specifically related to a kind of anti-loosing and anti-assembling nut.
Background technique
The anti-assembling nut of prior art is that axial symmetry is made two by dark gradually shallow arc groove on the wall of inner bolt hole, the axial length of groove generally is 2.5～4.5 pitch, and a pin or steel ball be installed in groove separately, and then with the fixing relative position of pin or steel ball of core plug and end face back-up ring.
The shortcoming of the anti-loosing and anti-assembling nut of this class is: (1) is the open arc groove on the wall of inner bolt hole, and the destruction of double thread is bigger, has reduced its due usability and has been unsuitable for being used for fastening.(2) pin or steel ball are pushed out outside the curve bath along with the screw-in of nut main body easily, thereby have lost anti-unloading functions.(3) pin is along with the screw-in of nut, and the also easily oblique horizontal anti-assembling nut that blocks in curve bath can not screw in it again; The round steel pearl is also blocked nut at the depth tangent plane of curve bath easily, and it can not be screwed in again.(4) this class nut needs the bolt with lengthening usually when the steel part screw pair connects, and is equipped with packing ring, tightening nut, anti-assembling nut, binding nut again, and complex structure assembles loaded down with trivial details.
Chinese patent literature CN1673557A discloses a kind of anti-loosing and anti-assembling nut, comprise nut main body and overcoat, described nut main body is provided with the internal thread of perforation, the upper end external diameter is provided with shoulder, the shoulder external diameter is greater than the interior warp of overcoat, nut main body and overcoat cooperation place are provided with the ratchet mechanism of individual event engagement, and ratchet mechanism is made of the one or more ratchet on the internal diameter that is arranged on overcoat.The effect of its shoulder is control, and nut drops out, and the effect of described ratchet mechanism is: when outside be enclosed within when screwing in, described ratchet mechanism is given the nut main body conductance, drives nut main body and screws in; When overcoat was screwed out, ratchet mechanism skidded, and no longer drove nut main body, thereby played the blocking and antiunloading effect.But the shortcoming of the antitheft anti-assembling nut of this kind also clearly, owing to ratchet is set at the endless inner wall place of overcoat and the ring-type outer wall place of nut main body, the two spacing is less, because described ratchet is subjected to the restriction of used steel, wearing and tearing and elasticity are less easily, in the process of fastening screw-in of exerting oneself, easily because of the stressed pointed tooth wearing and tearing that cause ratchet greatly, cause the two not closely cooperate again, in fastening process, skidding will take place, can not produce fastening preferably effect.In addition, the anti-theft effect of this kind anti-loosing and anti-assembling nut is also relatively poor, only need to adopt slightly firmly interlock overcoat once of big wrench, just can the ratchet mechanism of this kind anti-theft bolt is locked, make overcoat and nut main body in screw-in and back-out process, all can not skid manifests, even also it has lost anti-theft capability.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, provide a kind of and screw in easily, can not block and can not wear and tear the anti-loosing and anti-assembling nut of skidding takes place in the process that screws in because of stressed excessive generation.
The technological scheme that realizes the object of the invention is: a kind of anti-loosing and anti-assembling nut, comprise nut main body and outer cover, and the center of described nut main body is provided with an inner bolt hole; The upper surface of described nut main body is provided with at least one binding groove, and described binding groove is surrounded by a downward-sloping guide surface and a prevent surface and forms; Described outer cover center is provided with vestibule, and the outer wall place of described outer cover is provided with forced section, and the inwall place of described outer cover upper surface is provided with and described binding groove quantity elastic pieces, and described spring sheet is downward-sloping and can stretch in the described binding groove; Described nut main body is contained in the vestibule of described outer cover.
The bottom of described outer cover is provided with to projecting inward limited part; Described nut main body is spacing in the vestibule of outer cover by the limited part of described outer cover.
The bottom of described nut main body is provided with the support with arc shaped surface.
The quantity of described binding groove is more than three or three.
Described guide surface is an inclined-plane, and described prevent surface is a vertical guide.
Described guide surface is a downward-sloping arc shaped surface, and described prevent surface is an inclined downward, and the true dip direction of described prevent surface is identical with the true dip direction of described guide surface.
Described nut main body is a round nut.
The present invention has positive effect: (1) the present invention has adopted binding groove and the cooperatively interacting of stretching in the binding groove of spring sheet to promote the nut main body rotation, with traditional employing curve bath and pin or steel ball and realize that the nut of blocking and antiunloading purpose compares, do not destroy the usability of nut self, and when screwing in, the present invention can not blocked, and easy to use.
(2) the present invention compares with the disclosed anti-loosing and anti-assembling nut of Chinese patent literature CN1673557A, the present invention is owing to adopt spring sheet to replace setting ratchet on the coat, the employing binding groove replaces being arranged on the ratchet on the nut main body, simultaneously since its that position is set is also inequality, its weak effect is apart from very obvious; Spring sheet in the product of the present invention is because elasticity is bigger, in the space certain deformation performance can arranged up and down, in the time of can guaranteeing so no matter how to rotate outer cover, can not make spring sheet and binding groove impaired because of exerting oneself excessive, promptly can skidding not take place when screwing in yet because of wearing and tearing.
(3) outer cover in the product of the present invention also can protect circular nut main body can not unloaded by the instrument of drill rod or wrench and so on, and anti-theft effect is better.
(4) support with arc shaped surface of the bottom of the nut main body in the product of the present invention can reduce the frictional force between nut main body and the outer cover when fastening screw-in, makes the present invention convenient, easy when screwing in.
Description of drawings
Fig. 1 is for being sectional structure schematic representation of the present invention.
Fig. 2 is the stereogram of the outer cover of anti-loosing and anti-assembling nut shown in Figure 1.
Structural representation when Fig. 3 is overlooking of outer cover shown in Figure 2.
Fig. 4 is the A-A sectional view of Fig. 3.
Fig. 5 be anti-loosing and anti-assembling nut shown in Figure 1 the sectional view of nut main body.
Fig. 6 is the B-B sectional view of Fig. 5.
Reference character is: nut main body 1, inner bolt hole 11, binding groove 12, guide surface 121, prevent surface 122, support 13, arc shaped surface 131, outer cover 2, vestibule 21, forced section 22, spring sheet 23, limited part 24, bolt 3, outside thread 31, common firm nut 4.
Embodiment
(embodiment 1)
See Fig. 1 to Fig. 6, present embodiment is a kind of anti-loosing and anti-assembling nut, comprises circular nut main body 1 and hexagonal outer cover 2; The center of described nut main body 1 is provided with an inner bolt hole 11, and the upper surface of described nut main body 1 is provided with three binding grooves 12, and described binding groove 12 is surrounded by a downward-sloping guide surface 121 and a prevent surface 122 and forms; In the present embodiment, described guide surface 121 is inclined-planes, and described prevent surface 122 is vertical guides; The bottom of described nut main body 1 is provided with the support 13 with arc shaped surface 131.Support 13 with arc shaped surface can reduce the frictional force between nut main body and the outer cover when fastening screw-in, make screw-in convenient, easy.
Described outer cover 2 centers are provided with circular vestibule 21, the outer wall place of described outer cover 2 is provided with hexagonal forced section 22, the inwall place of described outer cover 2 upper surfaces is provided with the spring sheet 23 that three punching presses are made, and described spring sheet 23 is downward-sloping and can stretch in the described binding groove 12; Described nut main body 1 is contained in the vestibule 21 of described outer cover.Outer cover 2 also can protect circular nut main body 1 can not unloaded by the instrument of drill rod or wrench and so on.
The bottom of described outer cover 2 is provided with to projecting inward limited part 24; Described limited part 24 is again the bottom of outer cover to be carried out punching press after being placed in the vestibule 21 of outer cover 2 to nut main body 1 to make, and can be the circular protrusion piece that the anchor fluke made of part punching press also can be made by whole punching press; The circular protrusion piece 24 that present embodiment is made by whole punching press; Described nut main body 1 is spacing in the vestibule 21 of outer cover by the limited part 24 of described outer cover, so that nut main body 1 is unlikely to drop out from outer cover 2.
The spacing of the inwall of the upper surface of described nut main body 1 and described outer cover 2 upper surfaces is greater than the thickness of described spring sheet 23, when the blocking and antiunloading bolt of present embodiment unloads back-out pine, described spring sheet 23 can shift out binding groove 12 under the leading role of guide surface 121, skidding takes place and make nut main body 1 can not be removed.
See Fig. 7, the anti-loosing and anti-assembling nut of present embodiment can use separately, also can work in coordination with common firm nut 4 and use.When the anti-loosing and anti-assembling nut of present embodiment and common firm nut 4 collaborative uses, generally should screw in common firm nut 4 earlier, screw in the anti-loosing and anti-assembling nut of present embodiment again.
The anti-loosing and anti-assembling nut of present embodiment is when screwing in, earlier the inner bolt hole 11 of described nut main body 1 is aimed at the outside thread 31 of bolt 3, firmly twist the hexagon forced section 22 of outer cover 2 then, this moment, the spring sheet 23 of outer cover 2 rotated along with the rotation of outer cover 2, and under the downward-sloping specified structure of self limits and under the leading role of described guide surface 121, described spring sheet 23 pushes against on the prevent surface 122 of the binding groove 12 of described nut main body 1, thereby promote described nut main body 1 rotation, make nut main body 1 be tightened on the described bolt 3;
When the anti-loosing and anti-assembling nut of present embodiment when pine is unloaded, described outer cover 2 is reversed twists, but spring sheet 23 has certain elasticity, so spring sheet 23 is shifting out binding groove 12 under the qualification of self structure and under the leading role of described guide surface 121, skidding also promptly takes place, and no longer nut main body 1 is produced thrust; So when the anti-loosing and anti-assembling nut of present embodiment when pine is unloaded, outer cover 2 is along with the external force rotation, but nut main body 1 still stationary fixing on described bolt 3 pine can not taken place unload phenomenon.
(embodiment 2)
See Fig. 8, the anti-loosing and anti-assembling nut of present embodiment is substantially the same manner as Example 1, difference is: described guide surface 121 is downward-sloping arc shaped surfaces, described prevent surface 122 is some inclined downward a little, and the true dip direction of described prevent surface 122 is identical with the true dip direction of described guide surface 121.
Obviously, the above embodiment of the present invention only is for example of the present invention clearly is described, and is not to be qualification to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give exhaustive to all mode of executions.And these belong to conspicuous variation or the change that spirit of the present invention extended out and still are among protection scope of the present invention.
Claims (5)
1, a kind of anti-loosing and anti-assembling nut comprises nut main body (1) and outer cover (2), and the center of described nut main body (1) is provided with an inner bolt hole (11); It is characterized in that: the upper surface of described nut main body (1) is provided with at least one binding groove (12), and described binding groove (12) is surrounded by a downward-sloping guide surface (121) and a prevent surface (122) and forms; Described outer cover (2) center is provided with vestibule (21), the outer wall place of described outer cover (2) is provided with forced section (22), the inwall place of described outer cover (2) upper surface is provided with and described binding groove (12) quantity elastic pieces (23), and described spring sheet (23) is downward-sloping and can stretch in the described binding groove (12); Described nut main body (1) is contained in the vestibule (21) of described outer cover; Described guide surface (121) is an inclined-plane, and described prevent surface (122) is a vertical guide; Perhaps described guide surface (121) is a downward-sloping arc shaped surface, described prevent surface (122) is an inclined downward, when described prevent surface (122) was an inclined downward, the true dip direction of described prevent surface (122) was identical with the true dip direction of described guide surface (121).
2, anti-loosing and anti-assembling nut according to claim 1 is characterized in that: the bottom of described outer cover (2) is provided with to projecting inward limited part (24); Described nut main body (1) is by in the spacing vestibule at outer cover of the limited part of described outer cover (24) (21).
3, anti-loosing and anti-assembling nut according to claim 1 is characterized in that: the bottom of described nut main body (1) is provided with the have arc shaped surface support (13) of (131).
4, anti-loosing and anti-assembling nut according to claim 1 is characterized in that: the quantity of described binding groove is more than three or three.
5, anti-loosing and anti-assembling nut according to claim 1 is characterized in that: described nut main body (1) is a round nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100539737A CN100560996C (en) | 2006-10-25 | 2006-10-25 | Anti-loosing and anti-assembling nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100539737A CN100560996C (en) | 2006-10-25 | 2006-10-25 | Anti-loosing and anti-assembling nut |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1948768A CN1948768A (en) | 2007-04-18 |
| CN100560996C true CN100560996C (en) | 2009-11-18 |
Family
ID=38018359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100539737A Expired - Fee Related CN100560996C (en) | 2006-10-25 | 2006-10-25 | Anti-loosing and anti-assembling nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100560996C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105444126A (en) * | 2015-12-13 | 2016-03-30 | 重庆触视科技有限公司 | Heat dissipation type LED lamp |
| CN111576699B (en) * | 2020-04-18 | 2022-07-19 | 杭州斯泰新材料技术有限公司 | Nut assembly with nut jacket and fastening assembly thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4602903A (en) * | 1984-03-16 | 1986-07-29 | Wilburn James C | Anti-theft safety nut |
-
2006
- 2006-10-25 CN CNB2006100539737A patent/CN100560996C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4602903A (en) * | 1984-03-16 | 1986-07-29 | Wilburn James C | Anti-theft safety nut |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1948768A (en) | 2007-04-18 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: HU YAN Free format text: FORMER OWNER: QIAN CHENGFA Effective date: 20111220 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 325604 WENZHOU, ZHEJIANG PROVINCE TO: 325600 WENZHOU, ZHEJIANG PROVINCE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20111220 Address after: 325600 Zhejiang province Yueqing City Industrial Zone seventeen weft road incubator Patentee after: Hu Yan Address before: Bai Shi Zhen Dong Jia Cun of Yueqing City, Zhejiang province 325604 Patentee before: Qian Chengfa |
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091118 Termination date: 20111025 |