CN201053428Y - Screw bolt and nut fastener convenient for mounting - Google Patents
Screw bolt and nut fastener convenient for mounting Download PDFInfo
- Publication number
- CN201053428Y CN201053428Y CNU2007201210017U CN200720121001U CN201053428Y CN 201053428 Y CN201053428 Y CN 201053428Y CN U2007201210017 U CNU2007201210017 U CN U2007201210017U CN 200720121001 U CN200720121001 U CN 200720121001U CN 201053428 Y CN201053428 Y CN 201053428Y
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- bolt
- nut
- plastic
- tooth side
- side angle
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Abstract
The utility model provides a bolt and nut fastening piece with convenient installation, comprising a plastic bolt with outside threads and a plastic nut with internal threads, wherein, the thread profile of the bolt or nut or both the bolt and nut is a non-isosceles triangle or a non-isosceles trapezoid, and the lateral horn of the thread profile on the front side of threads is greater than that on the rear side, and the two lateral horns has a difference of more than 15 degrees. When the utility model is used to assemble a bolt and a nut, the bolt and nut can be directly pressed in without the need to screw the bolt or nut by a plurality of circles, thereby realizing quick assembly and convenient use and saving time, which means that great labor is saved for workers assembling products; in everyday use, after the plastic bolt and the plastic nut are screwed, the plastic bolt is not easy to accidentally deviate from the plastic nut.
Description
Technical field
The utility model belongs to the threaded fastener technology field, is specifically related to a kind of bolt and nut fastening piece easy for installation.
Background technique
The bolt and nut fastening piece is a kind of fastening piece of extensive use, can be applied in engineering goods, also can be applied in daily technology industrial products, as is applied in plastic packets vanning, plastic packing box, packing case, paper pack etc.When bolt and nut fastener application during at daily technology industrial products, general lower to the requirement of fastening degree, and require easy to install.
Existing bolt and nut fastening piece generally need screw until both by manually bolt or nut being turned some circles when assembling, expend time in like this, can bring inconvenience in daily life, and under the situation of factory's assembled product, then be to show as the increase cost of labor.
Summary of the invention
Main purpose of the present utility model is to provide a kind of bolt and nut fastening piece easy for installation at the above-mentioned deficiency of prior art, and it need not turn the some circles of bolt or nut when mounted, and can fast both be assembled fastening, easy to use.
For achieving the above object, bolt and nut fastening piece easy for installation of the present utility model comprises and has externally threaded plastic bolt, and the plastic nut that has internal thread, its main feature is, in plastic nut and two members of plastic bolt, the thread profile that has a member at least is not isosceles triangle or non-isosceles trapezoid, and the tooth side angle of this screw thread leading flank is greater than the tooth side angle of trailing flank, and both differ more than 15 °.So-called " screw thread leading flank " for nut, is meant in the screw thread bi-side of nut, towards the side (corresponding, the trailing flank that the also distant dorsad side from the nut front end is exactly a screw thread) of also close nut front end; For bolt, " screw thread leading flank " refers in the bolt thread bi-side, towards the side (corresponding, the trailing flank that the also distant dorsad side from the bolt front end is exactly a screw thread) of also close bolt front end.So-called " bolt front end " is meant the end that bolt contacts with nut when just being screwed into nut; So-called " nut front end " is meant when bolt just is screwed into nut the end that nut contacts with bolt.So-called " tooth side angle " is meant on thread profile, the between perpendiculars angle of the tooth side (being the screw thread side) and the axis of thread.
Be preferably, the thread profile of plastic nut and two members of plastic bolt is not isosceles triangle or non-isosceles trapezoid, and all greater than the tooth side angle of trailing flank, the tooth side angle of two member leading flanks and the tooth side angle of trailing flank all differ more than 15 ° the tooth side angle of two member screw thread leading flanks.
Be more preferably, the tooth side angle of screw thread leading flank is greater than 50 °, and the tooth side angle of screw thread trailing flank is less than 35 °.
The tooth side angle of screw thread leading flank is greater than 60 °, and the tooth side angle of screw thread trailing flank is less than 25 °.
The axial length of nut inner thread is less than the externally threaded axial length of bolt; Do not distribute in the nut screw position of internal thread, internal diameter is extended to greater than the externally threaded big footpath of bolt.
The utlity model has following advantage and effect:
1, bolt and nut fastening piece of the present utility model, owing to adopt the plastic bolt nut, and the tooth side angle of screw thread leading flank is big, the angle that is screw thread leading flank and central axis is little, from axial direction, the screw thread leading flank is milder, therefore when assembling, can utilize the deformation nature of plastics, by manpower with plastic bolt and plastic nut from axially directly pressing, make plastic whorl generation deformation in this process, the screw thread of one of them member is progressively pushed ahead along another member screw thread leading flank, cross the leading flank of these screw threads vertically one by one, final just can be directly with plastic bolt from axially compressing into plastic nut fully.Therefore, during the utility model assembling bolt nut, do not need bolt or nut are turned some circles, just can realize quick assembling, easy to use, can save time, for factory's assembled product, mean and save in a large number manually.
2, when plastic bolt after compress into plastic nut, because the tooth side angle of screw thread trailing flank is big, the angle that is screw thread trailing flank and central axis is big, from axial direction, screw thread trailing flank steeper, pull out if want to make plastic bolt directly to draw back from plastic nut, meeting be stopped by the steep bank of screw thread trailing flank and be difficult to directly cross, thereby be difficult to directly plastic bolt directly be pulled out backward from plastic nut.As a same reason, in daily use, after plastic bolt and plastic nut screwed, also plastic bolt was difficult for breaking away from plastic nut is unexpected.Certainly, if want to make both to break away from, can adopt the way of manually unscrewing.
3, the axial length of nut inner thread is less than the externally threaded axial length of bolt, the position of the internal thread that in the nut screw, do not distribute, and internal diameter is extended to greater than the externally threaded big footpath of bolt.Like this, a part of length section screw thread that do not distribute in the screw of nut can reduce the resistance of dump bolt in the quick assembly process.
Description of drawings
Fig. 1 is first kind of embodiment's of the utility model a structural representation.
Fig. 2 is the cross-sectional view of plastic nut among Fig. 1.
Fig. 3 is second kind of embodiment's of the utility model a structural representation.
Fig. 4 is second kind of embodiment's of the utility model a decomposition shape schematic representation.
Fig. 5 is the cross-sectional view of plastic bolt among second kind of embodiment of the utility model.
Fig. 6 is the third embodiment's of the utility model a structural representation.
Fig. 7 is the 4th kind of embodiment's of the utility model a structural representation.
Embodiment
Embodiment one
Fig. 1, bolt and nut fastening piece shown in Figure 2, comprise and have externally threaded plastic bolt 1, and the plastic nut 2 that has internal thread, the internal thread tooth form of plastic nut 2 is isosceles triangle not, and the tooth side angle of this screw thread leading flank is 65 °, the tooth side angle θ of trailing flank is 20 °, and both differ 45 °.
Shown in Figure 2, so-called " nut front end " is meant that when bolt just is screwed into nut the end that nut contacts with bolt is held as the A among Fig. 2; B end among Fig. 2 is " nut back end ".For nut, so-called " screw thread leading flank " is meant in the screw thread bi-side of nut, towards the side Q (corresponding, the trailing flank H that the also distant dorsad side from the nut front-end A is exactly a screw thread) of also close nut front-end A end.So-called " tooth side angle " is meant on thread profile, and the between perpendiculars angle of tooth side (being the screw thread side) and nut thread central axis mn is shown in Fig. 2 dens in dente side angle and tooth side angle θ.
Fig. 1, shown in Figure 2, the bolt total length is distributed with outside thread, and the screw of nut only before it half section be provided with screw thread, the screw second half section of nut (near a section of B end among Fig. 2) screw thread that do not distribute, the axial length of nut inner thread is less than the externally threaded axial length of bolt like this; The internal diameter of nut screw second half section is extended to greater than the externally threaded big footpath of bolt, and the second half section of nut screw is level and smooth shape.
Embodiment two
Fig. 3, Fig. 4, shown in Figure 5, in plastic nut 2 and 1 two members of plastic bolt, the thread profile of plastic bolt 1 is isosceles triangle not, and the tooth side angle of this screw thread leading flank is 70 °, and the tooth side angle θ of trailing flank is 25 °, and both differ 45 °.
Shown in Figure 5, so-called " bolt front end " is meant the end that bolt contacts with nut when just being screwed into nut, hold as the E among Fig. 5; F end among Fig. 5 is " bolt rear end ".For bolt, " screw thread leading flank " refers in the bolt thread bi-side, towards the side Q (corresponding, the also distant dorsad side from bolt front end E is exactly the trailing flank H of screw thread) of also close bolt front end E.
Embodiment three
As shown in Figure 6, in this embodiment, the thread profile of plastic nut 2 and 1 two members of plastic bolt is not isosceles triangle.
Embodiment four
As shown in Figure 7, in this embodiment, the thread profile of plastic bolt 1 is not isosceles trapezoid, and all the other and embodiment two are together.
In the foregoing description, the tooth side angle of screw thread leading flank can change 65 °, 60 °, 50 ° etc. into, and the tooth side angle θ of respective threaded trailing flank can change 40 °, 35 °, 30 ° etc. into.
Claims (7)
1. bolt and nut fastening piece easy for installation, comprise and have externally threaded plastic bolt, and the plastic nut that has internal thread, it is characterized in that: in plastic nut and two members of plastic bolt, the thread profile that has a member at least is not isosceles triangle or non-isosceles trapezoid, and the tooth side angle of this screw thread leading flank is greater than the tooth side angle of trailing flank, and both differ more than 15 °.
2. bolt and nut fastening piece easy for installation according to claim 1, it is characterized in that: the thread profile of plastic nut and two members of plastic bolt is not isosceles triangle or non-isosceles trapezoid, and all greater than the tooth side angle of trailing flank, the tooth side angle of leading flank and the tooth side angle of trailing flank all differ more than 15 ° the tooth side angle of screw thread leading flank.
3. bolt and nut fastening piece easy for installation according to claim 1 and 2 is characterized in that: the tooth side angle of screw thread leading flank is greater than 50 °, and the tooth side angle of screw thread trailing flank is less than 35 °.
4. according to the described bolt and nut fastening piece easy for installation of claim 3, it is characterized in that: the tooth side angle of screw thread leading flank is greater than 60 °, and the tooth side angle of screw thread trailing flank is less than 25 °.
5. bolt and nut fastening piece easy for installation according to claim 1 and 2 is characterized in that: the axial length of nut inner thread is less than the externally threaded axial length of bolt; Do not distribute in the nut screw position of internal thread, internal diameter is extended to greater than the externally threaded big footpath of bolt.
6. bolt and nut fastening piece easy for installation according to claim 3 is characterized in that: the axial length of nut inner thread is less than the externally threaded axial length of bolt; Do not distribute in the nut screw position of internal thread, internal diameter is extended to greater than the externally threaded big footpath of bolt.
7. bolt and nut fastening piece easy for installation according to claim 4 is characterized in that: the axial length of nut inner thread is less than the externally threaded axial length of bolt; Do not distribute in the nut screw position of internal thread, internal diameter is extended to greater than the externally threaded big footpath of bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201210017U CN201053428Y (en) | 2007-06-13 | 2007-06-13 | Screw bolt and nut fastener convenient for mounting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201210017U CN201053428Y (en) | 2007-06-13 | 2007-06-13 | Screw bolt and nut fastener convenient for mounting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201053428Y true CN201053428Y (en) | 2008-04-30 |
Family
ID=39393091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201210017U Expired - Fee Related CN201053428Y (en) | 2007-06-13 | 2007-06-13 | Screw bolt and nut fastener convenient for mounting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201053428Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102022408A (en) * | 2009-09-11 | 2011-04-20 | 纽弗雷公司 | Screw connection with threaded bolt and nut |
| CN102242755A (en) * | 2010-05-14 | 2011-11-16 | 富瑞精密组件（昆山）有限公司 | Threaded connection structure |
| CN102859207A (en) * | 2010-04-23 | 2013-01-02 | 阿福德英国有限公司 | Fastener |
| TWI490418B (en) * | 2011-09-28 | 2015-07-01 | 蘋果公司 | Floating fasteners |
| CN104912890A (en) * | 2015-06-05 | 2015-09-16 | 无锡安欣达科技有限公司 | Inset type combined rivet |
| CN112096707A (en) * | 2019-06-17 | 2020-12-18 | 株式会社吴英制作所 | Water stop bolt, decorative cover member and mounting method thereof |
-
2007
- 2007-06-13 CN CNU2007201210017U patent/CN201053428Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102022408A (en) * | 2009-09-11 | 2011-04-20 | 纽弗雷公司 | Screw connection with threaded bolt and nut |
| CN102022408B (en) * | 2009-09-11 | 2014-10-15 | 纽弗雷公司 | Screw connection with threaded bolt and nut |
| CN102859207A (en) * | 2010-04-23 | 2013-01-02 | 阿福德英国有限公司 | Fastener |
| CN102859207B (en) * | 2010-04-23 | 2014-12-17 | 阿福德英国有限公司 | Fastener |
| CN102242755A (en) * | 2010-05-14 | 2011-11-16 | 富瑞精密组件（昆山）有限公司 | Threaded connection structure |
| CN102242755B (en) * | 2010-05-14 | 2015-08-12 | 富瑞精密组件（昆山）有限公司 | Screw connection structure |
| TWI490418B (en) * | 2011-09-28 | 2015-07-01 | 蘋果公司 | Floating fasteners |
| CN104912890A (en) * | 2015-06-05 | 2015-09-16 | 无锡安欣达科技有限公司 | Inset type combined rivet |
| CN112096707A (en) * | 2019-06-17 | 2020-12-18 | 株式会社吴英制作所 | Water stop bolt, decorative cover member and mounting method thereof |
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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: 20080430 Termination date: 20130613 |