CN207848183U - Anti-loosening hex bolts - Google Patents
Anti-loosening hex bolts Download PDFInfo
- Publication number
- CN207848183U CN207848183U CN201820162388.9U CN201820162388U CN207848183U CN 207848183 U CN207848183 U CN 207848183U CN 201820162388 U CN201820162388 U CN 201820162388U CN 207848183 U CN207848183 U CN 207848183U
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- checknut
- region
- threaded portion
- screw rod
- importing
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Abstract
The utility model discloses a kind of anti-loosening hex bolts, includes the screw rod of interconnection（1）And nut（2）, it is characterised in that：The screw rod（1）On be provided with checknut region（3）With importing threaded portion（4）, wherein importing threaded portion（4）Positioned at screw rod（1）Far from nut（2）One end, and checknut region（3）Length be import threaded portion（4）35 times of length, the importing threaded portion（4）The cusp angle of middle screw thread is 60 °, and checknut region（3）In the cusp angle of checknut be 65 °, and the helicla flute that threadingly gyratory directions open up is provided at the center of checknut（5）, and the helicla flute（5）Width be checknut the wide one third of tooth.This is a kind of simple in sturcture, ingenious in design, rationally distributed, the anti-loosening hex bolts in the checknut region with one section of special construction.
Description
Technical field
The utility model is related to fastener processing and production industry, especially a kind of anti-loosening hex bolts.
Background technology
Bolt is common fastener, because its have can self-locking, be simple to manufacture, can be mass-produced, of low cost, tool is mutual
A variety of advantages such as transsexual and the extensive use in multiple fields.Bolt is made of the nut being connected with each other with screw rod two parts,
It is provided with external screw thread on middle screw portion, is engaged with the internal thread in threaded hole by the external screw thread on screw portion, to realize
The self-locking of bolt in the axial direction ensures its structure that two different workpiece can be connected to one.But bolt is shaking
It is easy to happen and rotates backward under rotating ring border, and then occur loosening the phenomenon that even falling off, will produce great security risk in this way,
Therefore a kind of Novel bolt that can be solved the above problems is needed now.
Invention content
The utility model is to propose that one kind is simple in structure, design is skilful to solve the above-mentioned deficiency present in the prior art
It is wonderful, rationally distributed, the anti-loosening hex bolts in the checknut region with one section of special construction.
The technical solution of the utility model is：A kind of anti-loosening hex bolts includes the screw rod 1 and spiral shell of interconnection
Cap 2, it is characterised in that：It is provided with checknut region 3 on the screw rod 1 and imports threaded portion 4, wherein importing threaded portion
4 are located at the one end of screw rod 1 far from nut 2, and the length in checknut region 3 is import 4 length of threaded portion 3-5 times,
The cusp angle for importing screw thread in threaded portion 4 is 60 °, and the cusp angle of the checknut in checknut region 3 is
65 °, and the helicla flute 5 that threadingly gyratory directions open up is provided at the center of checknut, and the width of the helicla flute 5
For the wide one third of the tooth of checknut.
The utility model compared with the existing technology, has the following advantages that：
The anti-loosening hex bolts of this kind of structure type, simple in sturcture, ingenious in design, rationally distributed, its needle conventional junction
The bolt of structure is easy to loosen the problem of even falling off under vibration, and checknut area is provided on the screw portion of bolt
The cusp angle in domain, the checknut arranged on this region is bigger than the cusp angle of conventional threads, while being opened up on checknut
There are spiral slot, this screw thread to prevent its loosening, anti-loosing effect good by the tension of checknut in locking.
And its manufacture craft is simple, and manufacturing cost is cheap, it can be said that it has a variety of advantages, particularly suitable in ability
It is promoted and applied in domain, market prospects are very wide.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model embodiment.
Fig. 2 is the portions the A enlarged drawing in Fig. 1.
Fig. 3 is the portions the B enlarged drawing in Fig. 1.
Specific implementation mode
Below in conjunction with description of the drawings specific embodiment of the present utility model.As shown in Figure 1, Figure 2, Figure 3 shows：It is a kind of locking
Dynamic hex bolts, includes the screw rod 1 and nut 2 of interconnection, and checknut region 3 is provided on screw rod 1 and imports screw thread
Region 4, wherein importing threaded portion 4 is located at the one end of screw rod 1 far from nut 2, and the length in checknut region 3 is to import
3-5 times of 4 length of threaded portion, the above-mentioned cusp angle for importing screw thread in threaded portion 4 are 60 °, and in checknut region 3
The cusp angle of checknut be 65 °, and the helicla flute that threadingly gyratory directions open up is provided at the center of checknut
5, and the width of the helicla flute 5 is the wide one third of the tooth of checknut.
The course of work of the anti-loosening hex bolts of the utility model embodiment is as follows：When needing that this kind of bolt is utilized to carry out
When the connection of two different workpieces, the end of screw rod 1 is inserted into the open end of threaded hole, and turn bolt 2, is provided with standard
Cusp angle, which is the importing threaded portion 4 of 60 ° of screw threads, smoothly to be screwed in threaded hole, when in checknut region 3 and threaded hole
Internal thread contact when, continue turn bolt 2, the screw thread on checknut region 3 is contacted with screw hole, locking due to the region
The notch along screw rotating direction is offered at the center of screw thread（Helicla flute 5）, this helicla flute 5 is equivalent to spiral tooth therefrom
Between be divided into two parts, in this way when checknut enters threaded hole and is matched with the standard female in threaded hole, this two
Point spiral tooth can generate certain opposite displacement under the squeezing action of internal thread, and helicla flute 5 narrows, that is to say, that each circle spiral shell
Rotation tooth can all generate corresponding internal thread certain tensile force, in this way when entire checknut region 3 is all screwed into spiral shell
After in the internal thread of pit, multi-circle spiral flow tooth will internal threads generate larger tensile force, this tensile force can play anti-
The effect of loosening and effect.
Claims (1)
1. a kind of anti-loosening hex bolts, includes the screw rod of interconnection（1）And nut（2）, it is characterised in that：The screw rod
（1）On be provided with checknut region（3）With importing threaded portion（4）, wherein importing threaded portion（4）Positioned at screw rod（1）Far
From nut（2）One end, and checknut region（3）Length be import threaded portion（4）3-5 times of length, it is described to lead
Enter threaded portion（4）The cusp angle of middle screw thread is 60 °, and checknut region（3）In checknut cusp angle be 65 °,
And the helicla flute that threadingly gyratory directions open up is provided at the center of checknut（5）, and the helicla flute（5）Width
For the wide one third of the tooth of checknut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820162388.9U CN207848183U (en) | 2018-01-31 | 2018-01-31 | Anti-loosening hex bolts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820162388.9U CN207848183U (en) | 2018-01-31 | 2018-01-31 | Anti-loosening hex bolts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207848183U true CN207848183U (en) | 2018-09-11 |
Family
ID=63413861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820162388.9U Active CN207848183U (en) | 2018-01-31 | 2018-01-31 | Anti-loosening hex bolts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207848183U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112496249A (en) * | 2020-11-11 | 2021-03-16 | 嘉兴联控汽车部件有限公司 | Processing technology of high-temperature-resistant anti-loosening bolt |
-
2018
- 2018-01-31 CN CN201820162388.9U patent/CN207848183U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112496249A (en) * | 2020-11-11 | 2021-03-16 | 嘉兴联控汽车部件有限公司 | Processing technology of high-temperature-resistant anti-loosening bolt |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |