CN205744809U - A kind of anti-rotation bolt - Google Patents
A kind of anti-rotation bolt Download PDFInfo
- Publication number
- CN205744809U CN205744809U CN201620416449.0U CN201620416449U CN205744809U CN 205744809 U CN205744809 U CN 205744809U CN 201620416449 U CN201620416449 U CN 201620416449U CN 205744809 U CN205744809 U CN 205744809U
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- Prior art keywords
- bolt
- intensive aspect
- rod
- reinforcement
- head
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Abstract
The utility model discloses a kind of anti-rotation bolt, including bolt head and shank of bolt, the external diameter of described bolt head, more than the diameter of shank of bolt, is provided with reinforcement between shank of bolt and bolt head, the diameter of this reinforcement, more than the external diameter of bolt head, is provided with changeover portion between bolt head and reinforcement；Described bolt head includes the body of rod and thread segment, the first intensive aspect and the second intensive aspect it is socketed with outside the described body of rod, described first intensive aspect and the second intensive aspect be shaped as cylindrical shape, several recessed bars it are respectively equipped with on described first intensive aspect and the second intensive aspect, described first intensive aspect is placed in body of rod one end away from thread segment, second intensive aspect is placed in the middle part of the body of rod, and described thread segment is provided with guide section away from one end of the body of rod.The utility model proposes that a kind of structural strength is big, be easily installed the anti-rotation bolt with length in service life.
Description
Technical field
This utility model relates to a kind of bolt, particularly to a kind of anti-rotation bolt.
Background technology
Bolt is belonging to machine components, the threaded securing member of cylinder of adapted nut.By bolt head and shank of bolt (with an externally threaded cylinder) class securing member dimerous, needing and nut screw connection, for being fastenedly connected two parts with through hole, this type of attachment claims bolt to connect.As nut is screwed off from bolt, the two part can be made again separately, therefore bolt connection is belonging to removably connect.
The shaft that the structure of traditional bolt mostly is between the head of bolt and thread segment is processed as polished rod, this bolt is pressed in the bolt hole of actor in interference fit during installation, but the bolt anti-rotation poor effect of this structure, there will be bolt after nut fastening to rotate, the phenomenon that actor heavy wear is deformed after rotating by bolt even occurs, makes Joint failure.
Bonding strength between the most traditional shank of bolt and bolt head is poor, so that the service life of bolt is short.The structural strength of shank of bolt is low so that the ability of bolt support is more weak.
Utility model content
The purpose of this utility model is not enough for overcoming present in background technology, and the purpose of this utility model is to propose that a kind of structural strength is big, be easily installed the anti-rotation bolt with length in service life.
For reaching above-mentioned purpose, this utility model following scheme of employing:
A kind of anti-rotation bolt, including bolt head and shank of bolt, the external diameter of described bolt head, more than the diameter of shank of bolt, is provided with reinforcement between shank of bolt and bolt head, the diameter of this reinforcement, more than the external diameter of bolt head, is provided with changeover portion between bolt head and reinforcement；Described bolt head includes the body of rod and thread segment, the first intensive aspect and the second intensive aspect it is socketed with outside the described body of rod, described first intensive aspect and the second intensive aspect be shaped as cylindrical shape, several recessed bars it are respectively equipped with on described first intensive aspect and the second intensive aspect, described first intensive aspect is placed in body of rod one end away from thread segment, second intensive aspect is placed in the middle part of the body of rod, and described thread segment is provided with guide section away from one end of the body of rod.
By using technique scheme, in order to increase the structural strength of bolt, by being provided with reinforcement between shank of bolt and bolt head, this reinforcement can increase the bonding strength between shank of bolt and nut, thus increases the service life of bolt.In order to increase the structural strength of bolt further, changeover portion it is provided with between bolt head and reinforcement by arranging, this changeover portion can reduce the stress between shank of bolt and reinforcement, increase the bonding strength between shank of bolt and reinforcement, thus increase the structural strength of bolt, improve the service life of bolt.nullIn order to make bolt reach anti-rotation effect，The first intensive aspect and the second intensive aspect it is socketed with outside the body of rod by arranging，This first intensive aspect and the second intensive aspect can increase the structural strength of bolt，Described first intensive aspect and the second intensive aspect be shaped as cylindrical shape，Several recessed bars it are respectively equipped with on described first intensive aspect and the second intensive aspect，This recessed bar can increase the frictional force between bolt and actor，Prevent from bolt from producing to rotate，Bolt is made to fix more firm，First intensive aspect and the second intensive aspect can make bolt reach the effect of anti-rotation，And thread segment also can play skid-resistant effect when being engaged with nut，It is placed in body of rod one end away from thread segment by arranging the first intensive aspect by setting，Second intensive aspect is placed in the middle part of the body of rod，First intensive aspect、Thread segment and the second intensive aspect are respectively distributed to two ends and the centre of bolt，So that the anti-rotation effect of bolt is best.The installation of bolt for convenience, is provided with guide section by thread segment away from one end of the body of rod, and this guide section can facilitate penetrating of bolt, thus facilitates the installation of bolt.
This utility model is further arranged to: forming a raised line between adjacent two recessed bars, the thickness of this raised line is 0.2-0.4mm.
By using technique scheme, it is 0.2-0.4mm by arranging the thickness of raised line, if this thickness is the least, the then insufficient strength of raised line, then the structural strength of the bolt in this utility model is the lowest, if this thickness is the biggest, the quantity of the most recessed bar just reduces, its anti-rotation effect just weakens, so the thickness limiting raised line ensures that the anti-rotation effect making the first intensive aspect and the second intensive aspect on the premise of cord tissue intensity is greatly is best in 0.2-0.4mm, this thickness range.
This utility model is further arranged to: the width of described recessed bar is 0.2-0.3mm.
By using technique scheme, it is 0.2-0.3mm by arranging the width of recessed bar, then on the premise of the outer perimeter of intensive aspect is certain, if this width is bigger, then the quantity of raised line is the fewest, the effect of its anti-rotation is the most weak, if this width is less, then the distance between raised line is the least, and cause the frictional force between itself and actor just to reduce, making its anti-rotation effect the most weak, so limiting the width of recessed bar as 0.2-0.3mm, this width range inner bolt is best to the anti-rotation effect of actor.
This utility model is further arranged to: the length of described first intensive aspect or the second intensive aspect and the lenth ratio of the body of rod are 0.1-0.2.
By using technique scheme, in order to increase the anti-rotation effect of bolt, the lenth ratio of length Yu the body of rod by arranging the first intensive aspect or the second intensive aspect is 0.1-0.2, this ratio is the biggest, then the anti-rotation effect of bolt is the best, and this ratio is the biggest, then add the installation difficulty of bolt, so limiting the length of the first intensive aspect or the second intensive aspect and the lenth ratio of the body of rod as 0.1-0.2, on the premise of ensureing the normal mounting of bolt in this ratio range, make the anti-rotation best results of bolt.
This utility model is further arranged to: described changeover portion includes fixing the first strengthening segment being connected with reinforcement and fixing the second strengthening segment being connected with the body of rod, described first strengthening segment, the second strengthening segment are respectively arcwall face, and the diameter of this second strengthening segment and the first strengthening segment is incremented by successively.
By using technique scheme, include fixing the first strengthening segment being connected with reinforcement and fixing the second strengthening segment being connected with the body of rod by arranging changeover portion, described first strengthening segment, second strengthening segment is respectively arcwall face, the diameter of this second strengthening segment and the first strengthening segment is incremented by successively, first strengthening segment of arcwall face can reduce the stress between reinforcement, increase the bonding strength of reinforcement, second strengthening segment of arcwall face can reduce the connection stress of the body of rod, increase the bonding strength of the body of rod, this first strengthening segment and the second strengthening segment reduce the stress between the body of rod and reinforcement further, increase the bonding strength between the body of rod and reinforcement, thus increase the structural strength of bolt, increase the service life of bolt.
This utility model is further arranged to: described bolt head includes that head end, head end are provided with multiple chamfering, and chamfering is segmental arc with the junction of head end, and each segmental arc of the plurality of chamfering is on the circumference of same circle.
By using technique scheme, in order to increase comfortableness when bolt head tights a bolt, head end is included by arranging bolt head, head end is provided with multiple chamfering, chamfering is segmental arc with the junction of head end, and each segmental arc of the plurality of chamfering is on the circumference of same circle, and each segmental arc surrounds a circle, not only add the structural strength of chamfering, and make staff's more comfort and convenient when handling.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model a kind of anti-rotation bolt.
Fig. 2 is the first intensive aspect or the sectional view of the second intensive aspect in this utility model.
Fig. 3 is the schematic enlarged-scale view in Fig. 1 at P.
Fig. 4 is the structural representation of bolt head in this utility model.
Reference in figure: bolt head 1, shank of bolt 2, reinforcement 3, changeover portion 4, the body of rod 21, thread segment 22, the first intensive aspect 5, the second intensive aspect 6, recessed bar 7, guide section 8, raised line 71, the first strengthening segment 41, the second strengthening segment 42, head end 11, chamfering 9, segmental arc 91.
Detailed description of the invention
The utility model is described in further detail with embodiment below in conjunction with the accompanying drawings:
Referring to figs. 1 to Fig. 4, a kind of anti-rotation bolt, including bolt head 1 and shank of bolt 2, the external diameter of described bolt head 1 is more than the diameter of shank of bolt 2, reinforcement 3 it is provided with between shank of bolt 2 and bolt head 1, the diameter of this reinforcement 3, more than the external diameter of bolt head 1, is provided with changeover portion 4 between bolt head 1 and reinforcement 3；Described bolt head 1 includes the body of rod 21 and thread segment 22, the first intensive aspect 5 and the second intensive aspect 6 it is socketed with outside the described body of rod 21, described first intensive aspect 5 and the second intensive aspect 6 be shaped as cylindrical shape, it is respectively equipped with several recessed bars 7 on described first intensive aspect 5 and the second intensive aspect 6, described first intensive aspect 5 is placed in the body of rod 21 one end away from thread segment 22, second intensive aspect 6 is placed in the middle part of the body of rod 21, and described thread segment 22 is provided with guide section 8 away from one end of the body of rod 21.
By using technique scheme, in order to increase the structural strength of bolt, by being provided with reinforcement 3 between shank of bolt 2 and bolt head 1, this reinforcement 3 can increase the bonding strength between shank of bolt 2 and nut, thus increases the service life of bolt.In order to increase the structural strength of bolt further, changeover portion 4 it is provided with between bolt head 1 and reinforcement 3 by arranging, this changeover portion 4 can reduce the stress between shank of bolt 2 and reinforcement 3, increase the bonding strength between shank of bolt 2 and reinforcement 3, thus increase the structural strength of bolt, improve the service life of bolt.nullIn order to make bolt reach anti-rotation effect，The first intensive aspect 5 and the second intensive aspect 6 it is socketed with outside the body of rod 21 by arranging，This first intensive aspect 5 and the second intensive aspect 6 can increase the structural strength of bolt，Described first intensive aspect 5 and the second intensive aspect 6 be shaped as cylindrical shape，It is respectively equipped with several recessed bars 7 on described first intensive aspect 5 and the second intensive aspect 6，This recessed bar 7 can increase the frictional force between bolt and actor，Prevent from bolt from producing to rotate，Bolt is made to fix more firm，First intensive aspect 5 and the second intensive aspect 6 can make bolt reach the effect of anti-rotation，And thread segment 22 also can play skid-resistant effect when being engaged with nut，It is placed in the body of rod 21 one end away from thread segment 22 by arranging the first intensive aspect 5 by setting，Second intensive aspect 6 is placed in the middle part of the body of rod 21，First intensive aspect 5、Thread segment 22 and the second intensive aspect 6 are respectively distributed to two ends and the centre of bolt，So that the anti-rotation effect of bolt is best.The installation of bolt for convenience, is provided with guide section 8 by thread segment 22 away from one end of the body of rod 21, and this guide section 8 can facilitate penetrating of bolt, thus facilitates the installation of bolt.
This utility model is further arranged to: forming a raised line 71 between adjacent two recessed bars 7, the thickness of this raised line 71 is 0.2-0.4mm.
By using technique scheme, it is 0.2-0.4mm by arranging the thickness of raised line 71, if this thickness is the least, the then insufficient strength of raised line 71, then the structural strength of the bolt in this utility model is the lowest, if this thickness is the biggest, the quantity of the most recessed bar 7 just reduces, its anti-rotation effect just weakens, so the thickness limiting raised line 71 ensures that the anti-rotation effect making the first intensive aspect 5 and the second intensive aspect 6 on the premise of raised line 71 structural strength is greatly is best in 0.2-0.4mm, this thickness range.
This utility model is further arranged to: the width of described recessed bar 7 is 0.2-0.3mm.
By using technique scheme, it is 0.2-0.3mm by arranging the width of recessed bar 7, then on the premise of the outer perimeter of intensive aspect is certain, if this width is bigger, then the quantity of raised line 71 is the fewest, the effect of its anti-rotation is the most weak, if this width is less, then the distance between raised line 71 is the least, and cause the frictional force between itself and actor just to reduce, making its anti-rotation effect the most weak, so limiting the width of recessed bar 7 as 0.2-0.3mm, this width range inner bolt is best to the anti-rotation effect of actor.
This utility model is further arranged to: described first intensive aspect 5 or the length of the second intensive aspect 6 are 0.1-0.2 with the lenth ratio of the body of rod 21.
By using technique scheme, in order to increase the anti-rotation effect of bolt, it is 0.1-0.2 by arranging the first intensive aspect 5 or the length of the second intensive aspect 6 with the lenth ratio of the body of rod 21, this ratio is the biggest, then the anti-rotation effect of bolt is the best, and this ratio is the biggest, then add the installation difficulty of bolt, so limiting the first intensive aspect 5 or the length of the second intensive aspect 6 and the lenth ratio of the body of rod 21 as 0.1-0.2, on the premise of ensureing the normal mounting of bolt in this ratio range, make the anti-rotation best results of bolt.
This utility model is further arranged to: described changeover portion 4 includes first strengthening segment 41 that be connected fixing with reinforcement 3 and second strengthening segment 42 that be connected fixing with the body of rod 21, described first strengthening segment the 41, second strengthening segment 42 is respectively arcwall face, and the diameter of this second strengthening segment 42 and the first strengthening segment 41 is incremented by successively.
nullBy using technique scheme，First strengthening segment 41 that be connected fixing with reinforcement 3 and second strengthening segment 42 that be connected fixing with the body of rod 21 is included by arranging changeover portion 4，Described first strengthening segment 41、Second strengthening segment 42 is respectively arcwall face，The diameter of this second strengthening segment 42 and the first strengthening segment 41 is incremented by successively，First strengthening segment 41 of arcwall face can reduce the stress between reinforcement 3，Increase the bonding strength of reinforcement 3，Second strengthening segment 42 of arcwall face can reduce the connection stress of the body of rod 21，Increase the bonding strength of the body of rod 21，This first strengthening segment 41 and the second strengthening segment 42 reduce the stress between the body of rod 21 and reinforcement 3 further，Increase the bonding strength between the body of rod 21 and reinforcement 3，Thus increase the structural strength of bolt，Increase the service life of bolt.
This utility model is further arranged to: described bolt head 1 includes that head end 11, head end 11 are provided with multiple chamfering 9, and chamfering 9 is segmental arc 91 with the junction of head end 11, and each segmental arc 91 of the plurality of chamfering 9 is on the circumference of same circle.
By using technique scheme, in order to increase comfortableness when bolt head 1 tights a bolt, head end 11 is included by arranging bolt head 1, head end 11 is provided with multiple chamfering 9, chamfering 9 is segmental arc 91 with the junction of head end 11, and each segmental arc 91 of the plurality of chamfering 9 is on the circumference of same circle, and each segmental arc 91 surrounds a circle, not only add the structural strength of chamfering 9, and make staff's more comfort and convenient when handling.
The foregoing is only preferred embodiment of the present utility model, not with the present embodiment for limiting, all any amendment, equivalent or improvement etc. made within spirit of the present utility model and principle, within should be included in protection domain of the present utility model.
Claims (6)
1. an anti-rotation bolt, including bolt head and shank of bolt, it is characterised in that: the external diameter of described bolt head, more than the diameter of shank of bolt, is provided with reinforcement between shank of bolt and bolt head, the diameter of this reinforcement, more than the external diameter of bolt head, is provided with changeover portion between bolt head and reinforcement；Described bolt head includes the body of rod and thread segment, the first intensive aspect and the second intensive aspect it is socketed with outside the described body of rod, described first intensive aspect and the second intensive aspect be shaped as cylindrical shape, several recessed bars it are respectively equipped with on described first intensive aspect and the second intensive aspect, described first intensive aspect is placed in body of rod one end away from thread segment, second intensive aspect is placed in the middle part of the body of rod, and described thread segment is provided with guide section away from one end of the body of rod.
A kind of anti-rotation bolt the most according to claim 1, it is characterised in that: forming a raised line between adjacent two recessed bars, the thickness of this raised line is 0.2-0.4mm.
A kind of anti-rotation bolt the most according to claim 2, it is characterised in that: the width of described recessed bar is 0.2-0.3mm.
A kind of anti-rotation bolt the most according to claim 3, it is characterised in that: the length of described first intensive aspect or the second intensive aspect and the lenth ratio of the body of rod are 0.1-0.2.
A kind of anti-rotation bolt the most according to claim 4, it is characterized in that: described changeover portion includes fixing the first strengthening segment being connected with reinforcement and fixing the second strengthening segment being connected with the body of rod, described first strengthening segment, the second strengthening segment are respectively arcwall face, and the diameter of this second strengthening segment and the first strengthening segment is incremented by successively.
A kind of anti-rotation bolt the most according to claim 5, it is characterized in that: described bolt head includes head end, head end is provided with multiple chamfering, and chamfering is segmental arc with the junction of head end, and each segmental arc of the plurality of chamfering is on the circumference of same circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620416449.0U CN205744809U (en) | 2016-05-09 | 2016-05-09 | A kind of anti-rotation bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620416449.0U CN205744809U (en) | 2016-05-09 | 2016-05-09 | A kind of anti-rotation bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205744809U true CN205744809U (en) | 2016-11-30 |
Family
ID=57370066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620416449.0U Expired - Fee Related CN205744809U (en) | 2016-05-09 | 2016-05-09 | A kind of anti-rotation bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205744809U (en) |
-
2016
- 2016-05-09 CN CN201620416449.0U patent/CN205744809U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161130 Termination date: 20190509 |