CN207830324U - A kind of stud - Google Patents
A kind of stud Download PDFInfo
- Publication number
- CN207830324U CN207830324U CN201820137005.2U CN201820137005U CN207830324U CN 207830324 U CN207830324 U CN 207830324U CN 201820137005 U CN201820137005 U CN 201820137005U CN 207830324 U CN207830324 U CN 207830324U
- Authority
- CN
- China
- Prior art keywords
- thread segment
- limit section
- length
- rod
- thread
- 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
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- Forging (AREA)
Abstract
A kind of stud provided by the utility model, including the body of rod, first limit section, first thread segment, second limit section, second thread segment, the upper end of the body of rod is connected with the first limit section, the lower end of the body of rod is connected with the second limit section, it is connected with the first thread segment above the first limit section, it is connected with the second thread segment below the second limit section, the length of first thread segment is less than the length of the body of rod, the length of the body of rod is less than the length of the second thread segment, the length of the first limit section is more than the length of the second limit section, the nominal diameter of second thread segment is more than the nominal diameter of the first limit section, it can prevent nut loosening.
Description
【Technical field】
The utility model is related to the technical field of machanical fastener, more particularly to a kind of technical field of stud.
【Background technology】
Stud is also double-threaded screw or studs.Fixed-link function for connecting machinery, stud two
Head has a screw thread, intermediate screw rod, have it is thick also have thin, be generally used for mining machinery, bridge, automobile, motorcycle, boiler steel
Structure, tower crane, large-span steel and heavy construction etc..Polished rod among common stud is all the smooth body of rod, even
When connecing mechanical structure, when receiving axial force vibrations, it can cause to slide axially, influence to fasten.
【Utility model content】
The purpose of the utility model is to overcome above-mentioned the deficiencies in the prior art, provide a kind of stud, are intended to solve
Certainly in the prior art axial vibrations when, the technical issues of causing nut loosening.
To achieve the above object, the utility model proposes a kind of studs, including the body of rod, the first limit section, first
The upper end of thread segment, the second limit section, the second thread segment, the body of rod is connected with the first limit section, and the lower end of the body of rod connects
It is connected to the second limit section, the first thread segment, the lower section connection of the second limit section are connected with above the first limit section
There are the second thread segment, the length of first thread segment to be less than the length of the body of rod, the length of the body of rod is less than the second thread segment
Length, the length of the first limit section is more than the length of the second limit section, and the nominal diameter of second thread segment is more than
The nominal diameter of first limit section.
Preferably, the rotation direction of first thread segment and the second thread segment is identical, first thread segment is left-handed spiral shell
Line.
Preferably, the first lead angle of first thread segment is 5 °~25 °, the second spiral shell of second thread segment
Line lift angle is 5 °~25 °.
Preferably, first thread segment and the second thread segment are fine thread, the first of first thread segment
The angle of rifling and second angle of rifling of the second thread segment are 60 °, and the tooth form of first thread segment and the second thread segment is three
It is angular.
The beneficial effects of the utility model：Compared with prior art, a kind of stud provided by the utility model, structure
Rationally, body of rod both ends increase limit section, and when by axial vibrations, limit section can bear the axial force of bigger, and nut is not easy
It loosens.
The feature and advantage of the utility model will be described in detail by embodiment combination attached drawing.
【Description of the drawings】
Fig. 1 is a kind of structural schematic diagram of stud of the utility model；
Fig. 2 is the close-up schematic view of the first thread segment of the utility model stud；
Fig. 3 is the close-up schematic view of the second thread segment of the utility model stud.
In figure：The 1- bodies of rod, 2- first limit section, the first thread segments of 3-, 4- second and limit section, the second thread segments of 5-, 31- the
One lead angle, first angles of rifling of 32-, the second lead angles of 51-, second angles of rifling of 52-.
【Specific implementation mode】
Refering to fig. 1, Fig. 2 and Fig. 3, the utility model embodiment provide a kind of stud, including the body of rod 1, first limits
Section the 2, first thread segment 3, second limit section 4, the second thread segment 5, the upper end of the body of rod 1 is connected with the first limit section 2, described
The lower end of the body of rod 1 is connected with the second limit section 4, and the top of the first limit section 2 is connected with the first thread segment 3, and described second
The lower section of limit section 4 is connected with the second thread segment 5, and the length of first thread segment 3 is less than the length of the body of rod 1, the body of rod 1
Length be less than the length of the second thread segment 5, the length of the first limit section 2 is more than the length of the second limit section 4, described the
The nominal diameter of two thread segments 5 is more than the nominal diameter of the first limit section 2, the rotation of first thread segment, 3 and second thread segment 5
To identical, first thread segment 3 is left hand thread.First lead angle 31 of first thread segment 3 is 10 °, described the
Second lead angle 51 of two thread segments 5 is 10 °, and first thread segment, 3 and second thread segment 5 is fine thread, described
First angle of rifling 32 of the first thread segment 3 and second angle of rifling 52 of the second thread segment 5 are 60 °, 3 He of the first thread segment
The tooth form of second thread segment 5 is triangle.
Utility model works process：
During the work time, stud includes that the body of rod 1, first limits section 2, first to a kind of stud of the utility model
Thread segment 3, second limits section 4, the second thread segment 5, and the both ends of stud are respectively the first thread segment 3 and the second thread segment 5,
Coordinated respectively with nut by the first thread segment 3 and the second thread segment 5 and fixed, the top of the first limit section 2 is connected with the first spiral shell
The lower section of line section 3, the second limit section 4 is connected with the second thread segment 5, and section 4 is limited when nut reaches the first limit section 2 and second
When, nut cannot move axially, and will not be loosened because of by axial force.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Any modification, equivalent replacement or improvement etc., should be included in the utility model made by within the spirit and principle of utility model
Protection domain within.
Claims (4)
1. a kind of stud, it is characterised in that：Including the body of rod (1), the first limit section (2), the first thread segment (3), the second limit
Position section (4), the second thread segment (5), the upper end of the body of rod (1) is connected with the first limit section (2), the lower end of the body of rod (1)
It is connected with the second limit section (4), the first thread segment (3), the second limit section are connected with above the first limit section (2)
(4) the second thread segment (5) is connected with below, the length of first thread segment (3) is less than the length of the body of rod (1), the bar
The length of body (1) is less than the length of the second thread segment (5), and the length of the first limit section (2) is more than the second limit section (4)
Length, the nominal diameter of second thread segment (5) are more than the nominal diameter of the first limit section (2).
2. a kind of stud as described in claim 1, it is characterised in that：First thread segment (3) and the second thread segment
(5) rotation direction is identical, and first thread segment (3) is left hand thread.
3. a kind of stud as described in claim 1, it is characterised in that：First screw thread liter of first thread segment (3)
Angle (31) is 5 °~25 °, and the second lead angle (51) of second thread segment (5) is 5 °~25 °.
4. a kind of stud as described in claim 1, it is characterised in that：First thread segment (3) and the second thread segment
(5) it is fine thread, second angle of rifling of first angle of rifling (32) and the second thread segment (5) of first thread segment (3)
(52) it is 60 °, the tooth form of first thread segment (3) and the second thread segment (5) is triangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820137005.2U CN207830324U (en) | 2018-01-26 | 2018-01-26 | A kind of stud |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820137005.2U CN207830324U (en) | 2018-01-26 | 2018-01-26 | A kind of stud |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207830324U true CN207830324U (en) | 2018-09-07 |
Family
ID=63395016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820137005.2U Expired - Fee Related CN207830324U (en) | 2018-01-26 | 2018-01-26 | A kind of stud |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207830324U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110131277A (en) * | 2019-06-10 | 2019-08-16 | 海盐县秦山橡胶厂 | A kind of stud of oil drilling platform fixation |
| CN111287318A (en) * | 2020-03-27 | 2020-06-16 | 山东建筑大学 | Spatial grid structure stud bolt connection node and construction method thereof |
-
2018
- 2018-01-26 CN CN201820137005.2U patent/CN207830324U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110131277A (en) * | 2019-06-10 | 2019-08-16 | 海盐县秦山橡胶厂 | A kind of stud of oil drilling platform fixation |
| CN111287318A (en) * | 2020-03-27 | 2020-06-16 | 山东建筑大学 | Spatial grid structure stud bolt connection node and construction method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180907 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |