CN102094888B - Trapezoid nut and bolt with trapezoid head - Google Patents
Trapezoid nut and bolt with trapezoid head Download PDFInfo
- Publication number
- CN102094888B CN102094888B CN2011100465325A CN201110046532A CN102094888B CN 102094888 B CN102094888 B CN 102094888B CN 2011100465325 A CN2011100465325 A CN 2011100465325A CN 201110046532 A CN201110046532 A CN 201110046532A CN 102094888 B CN102094888 B CN 102094888B
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- China
- Prior art keywords
- nut
- trapezoidal
- bolt
- cone
- head bolt
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- Expired - Fee Related
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Abstract
The invention relates to a trapezoid nut and a bolt with a trapezoid head, which are suitable for one-way brake shape anti-theft parts produced in batches in standard fastener plants. The shapes of the trapezoid nut and bolt provided by the invention are similar to stair steps; the bolt and the nut are installed by means of a clamp nut (special tool), have reliable anti-theft functions, and are rapid and convenient in installation; the bolt and the nut can be forwards screwed to be fastened; and the clamp nut (special tool) can be reversely screwed to immediately fall off.
Description
Affiliated technical field:
The present invention relates to a kind of machanical fastener, particularly a kind of trapezoidal nut and trapezoidal head bolt with the profile antitheft.
Background technique:
Patent of invention to application on March 2nd, 2007; Title cone external screw thread combined type 3 stage anti-loose anti-theft nuts, the patent No.: designed trapezoidal nut and trapezoidal head bolt with the existing defective of cone external screw thread anti-loose anti-theft nut of profile antitheft among the ZL200710020475.7 with the profile antitheft.
Summary of the invention:
The present invention is a kind of truncated cone, is twining the profile antitheft of spiral terraced steps, unidirectional tight trapezoidal nut and the trapezoidal head bolt stopped on its conical surface, is to rely on the fastening installation of special tool.
The technical problem that solves:
The present invention be to solve drawback such as the existing manufacturing difficulty of cone external screw thread anti-theft nut, and solves external screw thread and tightening nut internal screw thread on the cone nut because of tightening quilt and killed and tapering problem such as skid.The technical approach of being taked is:
The present invention is a kind of trapezoidal nut and trapezoidal head bolt with the profile antitheft, is a kind of conical surface that two different amount on same truncated cone, occur, and what angle was big is cone; What angle was little is the terraced steps inclined-plane that twines on the conical surface; Be and the inclined-plane of cone shaft axis 0-8 degree angle, the effect of taper fit self-locking is the inclined-plane that a kind of segmentation is severed inside and outside reaching; Profile is as sky way; Be spirally coiled on the truncated cone, side profile is as stair step, so be called the spiral terraced steps.
Its characteristic: be to work in coordination, reach the dextrorotation self-locking,, promptly produce the special good effect that derotation comes off when the mutual screwing force of internal and external threads during greater than the mutual self-lock force of the conical surface by the conical surface of two different amount on inside and outside two truncated cone.
Its characteristic of trapezoidal nut: profile is a truncated cone, is twining the external spiral terraced steps on the conical surface, and endoporus is the interior threaded hole that matches with the screw rod outside thread, the bottom be can built-in spring washer interior hexagonal spill end face, special tool is a tightening nut.Be divided into is two kinds: A-flat tightening nut; It is characterized in that profile is polygonal nut; Endoporus is for containing the cavity of trapezoidal nut (trapezoidal head bolt) truncated cone; Twining on the internal cone wall with trapezoidal nut (trapezoidal bolt head) male cone (strobilus masculinus) on the internal spiral terraced steps that matches of spiral terraced steps, the rear end is the through hole greater than the screw rod external diameter.The B-tightening nut that extends, its characteristic: be that front end is cylindrical, the rear end is the polygon nut, and endoporus is the same.
Trapezoidal nut and tightening nut twisted be integrated, screw in screw rod again, install with spanner and tighten; At this moment, the derotation tightening nut comes off immediately, when screwing force is excessive; The flat tightening nut that is installed on the trapezoidal nut tapering skids as occurring; Can be screwed into a plain nut again as the backer, the flat tightening nut can't be slided the back, derotation is promptly removed.
Its characteristic of trapezoidal head bolt: profile is a truncated cone, is twining the external spiral terraced steps on the conical surface, and screw rod is the outside thread that matches with nut inner threaded hole, and setting tool is the same to be tightening nut.
Trapezoidal head bolt and tightening nut twisted be integrated, screw in the tapped hole of equipment again, install with spanner and tighten, at this moment, the derotation tightening nut comes off immediately.
For preventing that the excessive tightening nut that causes of screwing force from skidding; Minor thread hole of design on the truncation end face of trapezoidal head bolt is used stove bolt to pass packing ring and is screwed in the minor thread hole and tightening nut is compressed be one, in the tapped hole of screw-in equipment; Screw up with a wrench; After installing, derotation is removed, and stays the trapezoidal head bolt of profile antitheft.This bolt head is called detachable trapezoidal head bolt.
Like the need dismounting, can tightening nut be screwed on the detachable trapezoidal head bolt once more, pass packing ring with stove bolt, the screw-in minor thread compresses in the hole, uses spanner derotation tightening nut again, because tightening nut can't move back and take off, bolt is promptly dismountable.
Beneficial effect of the present invention:
The present invention has solved drawback such as the existing manufacturing difficulty of cone external screw thread anti-theft nut, and the external screw thread and the tightening nut internal screw thread that have solved on the cone nut are killed and tapering problem such as skid because of tightening.
Figure of description:
Fig. 1 is spiral terraced steps (explanatory drawing);
Fig. 2 is trapezoidal nut, trapezoidal head bolt installation diagram (plan view);
Fig. 3 is that trapezoidal nut, trapezoidal head bolt are installed back (plan view);
Fig. 4 is trapezoidal nut ground plan (an A-A sectional view);
Fig. 5 is detachable trapezoidal head bolt installing/dismounting figure (plan view);
Fig. 6 is that detachable trapezoidal head bolt is installed back (plan view);
Among Fig. 1-Fig. 6:
1, trapezoidal nut;
2, spring washer;
3, flat tightening nut;
4, lengthening tightening nut;
5, common tightening nut;
6, trapezoidal head bolt;
7, detachable trapezoidal head bolt;
8, packing ring;
9, stove bolt;
10, iron plate;
11, equipment.
Embodiment:
Introduce as follows the present invention is concrete below in conjunction with accompanying drawing:
Embodiment 1:
As shown in Figure 1, the present invention is a kind of trapezoidal nut with the profile antitheft
1With the trapezoidal head bolt
6Be a kind of conical surface that two different amount on same truncated cone, occur, what angle was big is cone, and what angle was little is the terraced steps inclined-plane that twines on the conical surface; Be and cone shaft axis 0-8 degree angle inclined-plane; Reaching the effect of inside and outside taper fit self-locking, is the inclined-plane that a kind of segmentation is severed, and will scheme
1In
A, B, CThe N line segment is exactly a complete oblique line after connecting, and profile is spirally coiled on the truncated cone as sky way, and side profile is as stair step, so be called the spiral terraced steps.
Embodiment 2:
As shown in Figure 2, with the trapezoidal head bolt
6With the lengthening tightening nut
4Twist and be integrated insertion iron plate
10Endoporus in, with trapezoidal nut
1With the flat tightening nut
3Stubborn being integrated screws in screw rod, and install with spanner and tighten, at this moment, derotation flat tightening nut
3, the lengthening tightening nut
4Come off immediately, when screwing force is excessive, be installed in trapezoidal nut
1Flat tightening nut on the tapering
3As occur skidding, can be screwed into a plain nut again
5As the backer, make the flat tightening nut
3Can't slide the back, derotation is promptly removed.
Embodiment 3:
As Fig. 3, shown in, the antitheft trapezoidal nut after fastening is installed
1With the trapezoidal head bolt
7
Embodiment 4:
As shown in Figure 4, the bottom is can built-in spring washer
2Interior hexagonal spill end face.
Embodiment 5:
As shown in Figure 5, use stove bolt
9Pass packing ring
8Screw in the minor thread hole with the flat tightening nut
3Compress to after the one, with detachable bolt
7Pass iron plate
10Screw-in equipment
11Tapped hole in, screw up with a wrench, after installing, derotation is removed.
Embodiment 6:
As Fig. 6, shown in, the detachable trapezoidal head bolt after fastening is installed
7
Embodiment 7:
As shown in Figure 5, like the need dismounting, can be with the flat tightening nut
3Be screwed in detachable trapezoidal head bolt once more
7On, use stove bolt
9Pass packing ring
8, the screw-in minor thread compresses in the hole, uses spanner derotation flat tightening nut 3 again, because the flat tightening nut
3Can't move back and take off, detachable bolt is promptly dismountable.
Above-mentioned instance limits the present invention never in any form, and all employings all drop within protection scope of the present invention with the technological scheme that mode obtained of replacement or equivalent transformation.
Claims (2)
1. trapezoidal nut bolt assembly; Comprise tightening nut, trapezoidal nut, trapezoidal head bolt; It is characterized in that: the trapezoidal nut profile is a truncated cone; Twining the external spiral terraced steps on the conical surface, endoporus is the interior threaded hole that matches with the screw rod outside thread, the bottom be can built-in spring washer interior hexagonal spill end face; The profile of tightening nut is polygonal nut, and endoporus is for containing the cavity of truncated cone, twining on the internal cone wall with trapezoidal nut or trapezoidal head bolt male cone (strobilus masculinus) on the internal spiral terraced steps that matches of spiral terraced steps; The screw rod of trapezoidal head bolt is the outside thread that matches with nut inner threaded hole, and the head configuration of trapezoidal head bolt is same as trapezoidal nut, relies on tightening nut to install;
Occur the conical surface of two different amount on its same truncated cone, what angle was big is cone, and what angle was little is the terraced steps inclined-plane that twines on the conical surface, is the inclined-plane that a kind of segmentation is severed, and reaches the dextrorotation self-locking, the effect that derotation comes off.
2. a trapezoidal nut bolt assembly as claimed in claim 1 is characterized in that, terraced steps inclined-plane and cone shaft axis have 0-8 degree angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100465325A CN102094888B (en) | 2011-02-28 | 2011-02-28 | Trapezoid nut and bolt with trapezoid head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100465325A CN102094888B (en) | 2011-02-28 | 2011-02-28 | Trapezoid nut and bolt with trapezoid head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102094888A CN102094888A (en) | 2011-06-15 |
| CN102094888B true CN102094888B (en) | 2012-05-23 |
Family
ID=44128106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100465325A Expired - Fee Related CN102094888B (en) | 2011-02-28 | 2011-02-28 | Trapezoid nut and bolt with trapezoid head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102094888B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105570270A (en) * | 2014-11-11 | 2016-05-11 | 何天麟 | Detachable anti-theft nut and bolt assembly |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2177120Y (en) * | 1993-07-17 | 1994-09-14 | 张吉林 | Anti-loose, anti-theft fastening bolt |
| CN2210967Y (en) * | 1994-11-05 | 1995-10-25 | 栾永军 | Demounting-proof bolt |
| CN101029655B (en) * | 1997-08-27 | 2010-06-16 | 株式会社日立制作所 | Connection structure between two parts |
| JPH11351228A (en) * | 1998-06-04 | 1999-12-24 | Yuzo Ueda | Nut or bolt difficult to remove |
| CN2370208Y (en) * | 1999-05-14 | 2000-03-22 | 俞苗根 | Anti-theft device for line clip nut and its special tool for assembling and disassembling |
| CN101922499A (en) * | 2009-06-16 | 2010-12-22 | 徐尚仁 | Three-thread screwing-in/out antitheft nut |
-
2011
- 2011-02-28 CN CN2011100465325A patent/CN102094888B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN102094888A (en) | 2011-06-15 |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120523 Termination date: 20150228 |
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| EXPY | Termination of patent right or utility model |