CN200985940Y - Threaded connection anti-loose fastener - Google Patents
Threaded connection anti-loose fastener Download PDFInfo
- Publication number
- CN200985940Y CN200985940Y CN 200620170968 CN200620170968U CN200985940Y CN 200985940 Y CN200985940 Y CN 200985940Y CN 200620170968 CN200620170968 CN 200620170968 CN 200620170968 U CN200620170968 U CN 200620170968U CN 200985940 Y CN200985940 Y CN 200985940Y
- Authority
- CN
- China
- Prior art keywords
- circular cone
- hole
- nut
- screw
- bolt
- 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.)
- Expired - Fee Related
Links
- 239000003638 chemical reducing agent Substances 0.000 claims description 5
- 238000012856 packing Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 230000005489 elastic deformation Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
Landscapes
- Bolts, Nuts, And Washers (AREA)
Abstract
The utility model relates to a threaded connection locking fastener, belong to fastener technical field, characteristics are at current standard nut, set up on the basis of screw and bolt rather than protruding eccentric circular cone platform as an organic whole or concave concentric circular cone platform hole, also corresponding cooperation sets up concave concentric circular cone platform hole or concave eccentric circular cone platform hole on the screw hole or the bolt hole of various work pieces, protruding and concave during threaded connection, eccentric and concentric combination, can be used for the through-hole widely, multiple different threaded connection such as obstructed hole or two nut locking, by the produced axial of eccentric circular cone, the normal direction, radial effort, make the circular cone have a local circular cone inclined plane in close contact with, the three additional frictional force of three direction, the firm locking of simultaneous action. The utility model discloses simple structure can replace the effect of packing ring, and it not only can realize not becoming flexible totally, moreover when dismantling, because the local in-process elastic deformation recoverable at in close contact with the position of circular cone, so can use once more repeatedly.
Description
Technical field
The utility model relates to a kind of thread connection anti-loose fastener, belongs to technical field of fastening.
Background technique
The scyewed joint locking device of prior art roughly divides two classes.One class is to utilize the elastic force of packing ring, and promptly axially additional friction power prevents to become flexible, and can only be used for general parts and connect.Having less than one is that additional friction power is little, and the locking direction is single, the 2nd, and the easy elastic failure of spring washer, loosening when being hit, just causing when vibration and variable load, can only be passive take diligently checks that diligent method of tightening prevents to become flexible.Another kind of is to adopt to insert cotter pin, ties up iron wire or adopts stop, stopping shim locating stud etc., is used for stressed little parts connection and can prevents to become flexible.But using scope is narrow, and the parts that only limit to axle head and back-up ring and so on connect, and when being hit, cotter pin, stop, stopping shim etc. easily are sheared disconnected.
For solve scyewed joint be hit, fully loosening when vibration and variable load, will manage to increase additional friction power.The interrelated data of " Course Exercise in Machinery Elements Design " that U.S. M.F SPOTS writes and Germany, Italy, Japan and other countries is with in kind, and the up-to-date loosing Prevention Technology that openly provides utilizes the special shape of a certain part of nut to lock locking exactly.When nut screwing clamping or in tightening, in the local mandatory generation mechanically deformation of nut fluting, both plastic deformations.Also have plenty of in a certain part of nut and inlay big nonmetallic material-nylon of friction factor or fiber, make scyewed joint, radially producing the locking of additional friction power simultaneously, thereby effectively preventing loosening not only axially.But because mandatory flow and nonmetallic material distortion are irrecoverable, can only use once, can only carry out the destructiveness dismounting during dismounting, and complex structure, manufacture difficulty is big, cost is high.
Summary of the invention
The purpose of this utility model provides a kind of thread connection anti-loose fastener, overcomes the axial additional friction power of existing employing and prevents to become flexible; Axially, radially producing above-mentioned all deficiencies that additional friction power locking exists, realization can make that scyewed joint produces axially, normal direction, three additional friction power of three directions radially, thereby fully loosening, and detachably reuses repeatedly.
The purpose of this utility model is achieved through the following technical solutions, a kind of thread connection anti-loose fastener, comprise nut, screw, bolt, it is characterized in that the end face at the nut that has, the protruding eccentric circle frustum that is one at the setting of screw rod root and nut, screw, the bolt of screw, bolt, be provided with at an end of the nut that has corresponding protruding heart circular cone the CONCENTRIC REDUCER equal diameters with nut be the recessed concentric circle frustum hole of one; The also protruding concentric circle frustum that can be one at an end face of the nut that has, at the setting of screw rod root and nut, screw, the bolt of screw, bolt, be provided with at an end of the nut that has corresponding protruding concentric circle frustum the CONCENTRIC REDUCER equal diameters with nut be the recessed eccentric circle frustum hole of one.
The utility model is simple in structure, just on the basis of the nut of existing standard, screw, bolt, thicken, one end of thickening is protruding eccentric circle frustum or recessed concentric circle frustum hole, also corresponding recessed concentric circle frustum hole or the recessed eccentric circle frustum hole of being equipped with on the screw hole of various workpiece or bolt hole, protruding and recessed when being threaded, off-centre and concentric combination, it can replace the effect of packing ring, do not allow to adopt the packing ring of any pattern in the use, appropriate combination can be widely used for various being threaded such as through hole, blind hole or double nut locking.
The utility model is just thickeied on the basis of the nut of existing standard, screw, bolt, the circular cone position that increases helps the demoulding during fabrication, the external form requirement on machining accuracy is not high yet, adopts impact briquetting thread rolling technology routinely to make improvements producing in serial form in batch slightly.
The anti-loose ability of the utility model locking strengthens, and compares with prior art and foreign technology manufacture cost, can reduce manufacture cost significantly, does not allow to adopt the packing ring of any pattern in the use, can save the cost of a large amount of use packing rings accordingly.
The utility model reaches foreign technology compared to existing technology, and locking direction and additional friction power all increase to some extent, corresponding especially overcome be hit, vibration and variable load and the three-dimensional that causes unscrew power and effectively reach and stop loosening purpose.It not only can realize fully loosening, and when dismounting, owing to the local closely inherent resiliently deformable of contact position of circular cone can be recovered, so can reuse repeatedly.Improve using effect, saved operating cost.
Description of drawings
The sectional structure chart of the protruding eccentric circle frustum of Fig. 1 band nut;
The sectional structure chart of the recessed concentric circle taper hole of Fig. 2 band nut;
The structural drawing of Fig. 3 band protruding eccentric circle frustum screw or bolt;
The protruding eccentric circle frustum of Fig. 4 matches with recessed concentric circle taper hole and tightens stressed schematic representation;
Among the figure, 1 nut, 2 nuts, 3 protruding eccentric circle frustums, 4 screws or bolt, 5 recessed concentric circle frustum holes, eccentricity value a, additional friction power F1, normal direction additional friction power F2, radially additional friction power F3.
Embodiment
Further specify the utility model in conjunction with the accompanying drawings and embodiments, the utility model is that tapering is identical, the protruding eccentric circle frustum 3 of CONCENTRIC REDUCER equal diameters and recessed concentric circle frustum hole 5 respectively with existing standard nut 1,2, screw, bolt 4 are combined as a whole, for realizing being threaded, also corresponding recessed concentric circle frustum hole or the recessed eccentric circle frustum hole of being equipped with on the screw hole of various workpiece or the bolt hole, as shown in Figure 1, eccentricity value a with protruding eccentric circle frustum 3 nuts 1 is preferably between the 0.5-3mm, nut 1 diameter is big, throw of eccentric is big, and diameter is little and throw of eccentric is little; As shown in Figure 2, with the nut 2 in recessed concentric circle frustum hole 5, its recessed concentric circle frustum hole 5 and nut 2 coaxial lines; As shown in Figure 3, be with protruding eccentric circle frustum 3 screws or bolt 4, eccentricity value a is preferably between the 0.5-3mm.The screw hole or the bolt hole of they and various workpiece are carried out appropriate convex-concave, eccentric and concentric combination, can be widely applicable for multiple different threaded connection mode.Typical mode has: be used for the scyewed joint of through hole or foot screw, adopt to be with and be with the combination of recessed concentric circle frustum hole in protruding eccentric circle frustum 3 screws or bolt 4 and the workpiece; Be used for double nut locking (being useful for the scyewed joint of through hole or blind hole), adopt and be with protruding eccentric circle frustum 3 nuts 1 and be with 5 nuts, 2 combinations of recessed concentric circle frustum hole.
As shown in Figure 4, protruding eccentric circle frustum 3 top diameters are towards the below, and recessed concentric circle frustum hole 5 diameter at butt ends are towards the top, and the convex-concave circular cone matches when tightening, and produce pulling force in the coupled threaded one end, both axial additional friction power F1; Simultaneously protruding eccentric circle frustum 3 and recessed concentric circle frustum hole 5 have the circular cone inclined-plane of a part closely to contact, and the normal direction between them produces pressure, i.e. normal direction additional friction power (F2); And because the wobbler action power of protruding eccentric circle frustum 3, make tight contact position produce radially shearing force simultaneously, i.e. additional friction power (F3) radially.The locking of three directions, three additional friction power act on simultaneously, just in time corresponding overcome be hit, vibration and variable load and cause the power that unscrews of three-dimensional.During dismounting, owing to the local closely inherent resiliently deformable of contact position of convex-concave circular cone can be recovered, become flexible so it not only accomplishes to stop, the while also can be dismantled repeatedly and be reused.
Claims (2)
1, a kind of thread connection anti-loose fastener, comprise nut, screw, bolt, it is characterized in that the end face at the nut that has, the protruding eccentric circle frustum that is one at the setting of screw rod root and nut, screw, the bolt of screw, bolt, be provided with at an end of the nut that has corresponding protruding heart circular cone the CONCENTRIC REDUCER equal diameters with nut be the recessed concentric circle frustum hole of one; The also protruding concentric circle frustum that can be one at an end face of the nut that has, at the setting of screw rod root and nut, screw, the bolt of screw, bolt, be provided with at an end of the nut that has corresponding protruding concentric circle frustum the CONCENTRIC REDUCER equal diameters with nut be the recessed eccentric circle frustum hole of one.
2, scyewed joint fastener according to claim 1 is characterized in that eccentricity value is controlled between the 0.5-3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620170968 CN200985940Y (en) | 2006-12-14 | 2006-12-14 | Threaded connection anti-loose fastener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620170968 CN200985940Y (en) | 2006-12-14 | 2006-12-14 | Threaded connection anti-loose fastener |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200985940Y true CN200985940Y (en) | 2007-12-05 |
Family
ID=38915396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620170968 Expired - Fee Related CN200985940Y (en) | 2006-12-14 | 2006-12-14 | Threaded connection anti-loose fastener |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200985940Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103590524A (en) * | 2013-11-08 | 2014-02-19 | 浙江嘉宜实业有限公司 | Rotating locking mechanism of ceiling |
| CN103584552A (en) * | 2013-11-08 | 2014-02-19 | 浙江嘉宜实业有限公司 | Rocking chair |
| CN103598761A (en) * | 2013-11-08 | 2014-02-26 | 浙江嘉宜实业有限公司 | Lying bed |
| CN108869513A (en) * | 2018-09-11 | 2018-11-23 | 李璟旻 | General nut anti-looseness component |
| CN109026936A (en) * | 2018-09-30 | 2018-12-18 | 中冶交通建设集团有限公司 | A kind of expansion bolt |
| CN109236837A (en) * | 2018-11-20 | 2019-01-18 | 韦志锋 | The check bolt group and its operating method of reversed opposition outer bite-block circle and rotary table hex nut composition |
| CN110529486A (en) * | 2019-09-12 | 2019-12-03 | 新余钢铁股份有限公司 | A kind of blocking double nut structure and its application method |
| CN111609022A (en) * | 2020-05-06 | 2020-09-01 | 杨恒海 | Anti-loosening combined nut |
-
2006
- 2006-12-14 CN CN 200620170968 patent/CN200985940Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103590524A (en) * | 2013-11-08 | 2014-02-19 | 浙江嘉宜实业有限公司 | Rotating locking mechanism of ceiling |
| CN103584552A (en) * | 2013-11-08 | 2014-02-19 | 浙江嘉宜实业有限公司 | Rocking chair |
| CN103598761A (en) * | 2013-11-08 | 2014-02-26 | 浙江嘉宜实业有限公司 | Lying bed |
| CN103584552B (en) * | 2013-11-08 | 2017-02-15 | 浙江嘉宜实业有限公司 | Rocking chair |
| CN108869513A (en) * | 2018-09-11 | 2018-11-23 | 李璟旻 | General nut anti-looseness component |
| CN108869513B (en) * | 2018-09-11 | 2019-09-03 | 李璟旻 | General nut anti-looseness component |
| CN109026936A (en) * | 2018-09-30 | 2018-12-18 | 中冶交通建设集团有限公司 | A kind of expansion bolt |
| CN109236837A (en) * | 2018-11-20 | 2019-01-18 | 韦志锋 | The check bolt group and its operating method of reversed opposition outer bite-block circle and rotary table hex nut composition |
| CN110529486A (en) * | 2019-09-12 | 2019-12-03 | 新余钢铁股份有限公司 | A kind of blocking double nut structure and its application method |
| CN111609022A (en) * | 2020-05-06 | 2020-09-01 | 杨恒海 | Anti-loosening combined nut |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1987134A (en) | Threaded connection anti-loose fastener | |
| CN200985940Y (en) | Threaded connection anti-loose fastener | |
| CN203809477U (en) | Eccentric loose preventing nut | |
| CN205715164U (en) | Self-locking type check bolt assembly | |
| CN203384187U (en) | Anti-loosening fastening nut | |
| CN205001338U (en) | Wind -powered electricity generation self -locking screw | |
| CN103277392B (en) | Eccentric type self-locking nut | |
| CN106763249A (en) | A kind of assembly method of wind-power locking disc inner ring seam clip assembly device | |
| CN202451575U (en) | Bolt and nut locking set | |
| CN201705784U (en) | Anti-loose bolt and nut capable of improving stress distribution of screw threads | |
| CN207999427U (en) | A kind of anti-loose structure of fast cylinder locking nut | |
| CN2572108Y (en) | Double locknut utilizing taper surface | |
| CN203297282U (en) | Eccentric type self-locking nut | |
| CN207814176U (en) | Combined nut | |
| CN207104015U (en) | A kind of flexibly positioned fixture of three-dimensional multi-functional chamfering | |
| CN201810634U (en) | Fastening threaded device | |
| CN204572727U (en) | The locking EXPANSION ANCHOR BOLTS of a kind of tube-expanding type | |
| CN209539777U (en) | A kind of wind-power electricity generation nut | |
| CN206458709U (en) | Grooved metal gasket and its station mounting assembly containing the pad | |
| CN208935135U (en) | Dual locking absorbing type self-locking nut | |
| CN201874958U (en) | Locking nut | |
| CN206571802U (en) | A kind of half shaft bearing block check bolt | |
| CN204517312U (en) | Wind power generation penetration pipe structure | |
| CN201173235Y (en) | Vibration-resistant anti-loose nut with build in elastic ring | |
| CN218117965U (en) | Fan tower cylinder flange connection structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071205 Termination date: 20121214 |