CN209494822U - Check bolt and automobile with the check bolt - Google Patents
Check bolt and automobile with the check bolt Download PDFInfo
- Publication number
- CN209494822U CN209494822U CN201821870636.1U CN201821870636U CN209494822U CN 209494822 U CN209494822 U CN 209494822U CN 201821870636 U CN201821870636 U CN 201821870636U CN 209494822 U CN209494822 U CN 209494822U
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- Prior art keywords
- hole
- radial
- check bolt
- section
- mandril
- 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.)
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- 125000003003 spiro group Chemical group 0.000 claims abstract description 34
- 238000003825 pressing Methods 0.000 claims abstract description 31
- 230000005489 elastic deformation Effects 0.000 claims abstract description 6
- 230000008602 contraction Effects 0.000 claims description 13
- 230000000694 effects Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 4
- 229920006351 engineering plastic Polymers 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000011031 large-scale manufacturing process Methods 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005183 dynamical system Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
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Abstract
The utility model relates to fastener areas, and in particular to a kind of check bolt and the automobile with the check bolt.The utility model aims to solve the problem that bolt is easy the problem of loosening and causing danger.For this purpose, the check bolt of the utility model includes ontology and the mandril for being set to body interior, ontology is provided with axial hole, mandril is inserted into axial hole and moves back and forth along axial hole, ontology includes spiro rod section, the top of mandril and the head of spiro rod section are respectively arranged with the first radial through-hole and the second radial through-hole, check bolt further includes elastic element, elastic element is also cross the first radial through-hole and the second radial through-hole, elastic element is arranged to generate elastic deformation when pressing mandril and therefore be accommodated in the second radial through-hole, deformation restores after pressing force is eliminated and therefore at least the second radial through-hole is stretched out in one end.The check bolt simple structure of the utility model, anti-loosing effect are significant.
Description
Technical field
The utility model relates to fastener areas, and in particular to a kind of check bolt and the automobile with the check bolt.
Background technique
Bolt is common fastener, bolt due to the features such as its is at low cost, applied widely, connection reliability is higher and
It is used widely.But in some special application scenarios, then connection tightness is required very high.It is with electric car
Example, the power battery of electric car are normally fastened at below the chassis of electric car, since bolt has spring shim always
Power and ambient vibration form twisting swinging strength a little and bolt looseness phenomenon unavoidably occur over time, become.With
The loosening of bolt, it is more likely that phenomena such as poor contact between battery pack and automobile dynamic system occur, and then lead to dynamical system
Failure of uniting even safety accident.
Part electric car overcomes the problems, such as loosening using check bolt, and existing check bolt will be led with plasma spray technology
Body ingredient is the special engineering plastic spraying of nylon on thread, and when screw thread is in rundown process, this layer of engineering plastics are squeezed
It presses and generates powerful reaction force and frictional force, so that screw be prevented to retreat, achieve the effect that locking.But it is actually answering
This kind of check bolt is still easy to produce loosening under vibrational state in, is not able to satisfy actual demand, is unable to ensure vibration shape
The machinery run under state is continuous to be worked normally.
Correspondingly, this field needs a kind of new check bolt to solve the above problems.
Utility model content
It causes danger to solve the problem of the above problem in the prior art in order to solve the easy loosening of bolt,
The utility model provides a kind of check bolt, which includes ontology and the mandril for being set to the body interior, institute
It states ontology and is provided with axial hole, the mandril is inserted into the axial hole and moves back and forth along the axial hole, the ontology
Including spiro rod section, the head of the top of the mandril and the spiro rod section is respectively arranged with the first radial through-hole and the second radial direction is logical
Hole, the check bolt further include elastic element, and the elastic element is also cross first radial through-hole and described second
Radial through-hole, the elastic element are arranged to generate elastic deformation when pressing the mandril and are therefore accommodated in second diameter
Into through-hole, deformation restores after pressing force is eliminated and therefore at least second radial through-hole is stretched out in one end.
In the optimal technical scheme of above-mentioned check bolt, the length of the elastic element is greater than or equal to the spiro rod section
Radical length.
In the optimal technical scheme of above-mentioned check bolt, first radial through-hole and second radial through-hole are square
Shape hole, and first radial through-hole is greater than second radial through-hole along the axial height along the axial height
Degree.
In the optimal technical scheme of above-mentioned check bolt, first radial through-hole is arranged far from the side at the top
There is rounding.
In the optimal technical scheme of above-mentioned check bolt, the elastic element is matched with the first radial through-hole interference
It closes.
In the optimal technical scheme of above-mentioned check bolt, the elastic element is spring leaf.
In the optimal technical scheme of above-mentioned check bolt, the axial hole includes contraction section and expansion segment, the expansion
Section is set to one end far from the head, the mandril accordingly include the extruded segment that can be contained in the contraction section and
The pressing section that can be contained in the expansion segment.
In the optimal technical scheme of above-mentioned check bolt, the cross section of the contraction section and the extruded segment is square
Shape；And/or the cross section of the expansion segment and the pressing section is circle.
In the optimal technical scheme of above-mentioned check bolt, the ontology further includes spline segment and is set to the spiro rod section
With the annular boss between the spline segment, the annular boss can be connected to object to be tightened close to the side on the head
On, the spline segment can be socketed with fastening tool.
In the optimal technical scheme of above-mentioned check bolt, the head of the spiro rod section has chamfering.
The utility model additionally provides a kind of automobile, and the automobile includes described in any one of above-mentioned optimal technical scheme
Check bolt.
It will be appreciated to those of skill in the art that in the optimal technical scheme of the utility model, check bolt includes
Ontology and the mandril for being set to body interior, ontology are provided with axial hole, and mandril is inserted into axial hole and reciprocal along axial hole
Mobile, ontology includes spiro rod section, and the top of mandril and the head of spiro rod section are respectively arranged with the first radial through-hole and the second radial direction
Through-hole, check bolt further include elastic element, and elastic element is also cross the first radial through-hole and the second radial through-hole, elasticity member
Part is arranged to generate elastic deformation when pressing mandril and therefore be accommodated in the second radial through-hole, deformation after pressing force is eliminated
Restore and therefore at least the second radial through-hole is stretched out in one end.
Mandril, and the head at the top of mandril and spiro rod section is arranged in the inside of ontology in the check bolt of the utility model
Portion opens up the first radial through-hole and the second radial through-hole respectively, when the spiro rod section of check bolt screws in nut, is pressed by external force
Bear down on one bar, and elastic element is pushed up on mandril makes elastic element generate deformation and be accommodated in the second radial through-hole, so that spiro rod section is suitable
Benefit screws in nut；When screw rod is screwed into place, elastic element restores to stretch out the second radial through-hole by deformation after external force is eliminated
Holding can effectively prevent bolt to be detached from nut, significantly improve the safety of connection in the end of nut.In addition to this, this reality
With novel check bolt structure it is simple, operate conveniently, only need to press mandril, elastic element is through in two through hole, nothing
It need to be suitble to large-scale production by means of other tools.
Scheme 1, a kind of check bolt, which is characterized in that the check bolt includes ontology and is set in the ontology
The mandril in portion, the ontology are provided with axial hole, and the mandril is inserted into the axial hole and back and forth moves along the axial hole
Dynamic, the ontology includes spiro rod section, and the head of the top of the mandril and the spiro rod section is respectively arranged with the first radial through-hole
With the second radial through-hole, the check bolt further includes elastic element, and the elastic element is radial logical also cross described first
Hole and second radial through-hole, the elastic element are arranged to generate elastic deformation when pressing the mandril and therefore store
In second radial through-hole, deformation restores after pressing force is eliminated and therefore at least one end stretching described second is radial logical
Hole.
Scheme 2, check bolt according to scheme 1, which is characterized in that the length of the elastic element is greater than or equal to
The radical length of the spiro rod section.
Scheme 3, check bolt according to scheme 1, which is characterized in that first radial through-hole and second diameter
It is rectangular opening to through-hole, and first radial through-hole is greater than second radial through-hole described in along the axial height
Axial height.
Scheme 4, check bolt according to scheme 3, which is characterized in that first radial through-hole is far from the top
Side be provided with rounding.
Scheme 5, check bolt according to scheme 4, which is characterized in that the elastic element and first radial direction are logical
Hole interference fit.
Scheme 6, the check bolt according to scheme 5, which is characterized in that the elastic element is spring leaf.
Scheme 7, the check bolt according to any one of scheme 1-6, which is characterized in that the axial hole includes shrinking
Section and expansion segment, the expansion segment are set to one end far from the head, and the mandril accordingly includes that can be contained in institute
The pressing section stating the extruded segment in contraction section and capable of being contained in the expansion segment.
Scheme 8, check bolt according to scheme 7, which is characterized in that the contraction section and the extruded segment it is transversal
Face is rectangle；And/or the cross section of the expansion segment and the pressing section is circle.
Scheme 9, check bolt according to scheme 1, which is characterized in that the ontology further includes spline segment and is set to
Annular boss between the spiro rod section and the spline segment, the annular boss can be connected to close to the side on the head
On object to be tightened, the spline segment can be socketed with fastening tool.
Scheme 10, check bolt according to scheme 9, which is characterized in that the head of the spiro rod section has chamfering.
Scheme 11, a kind of automobile, which is characterized in that the automobile has locking described in any one of above scheme 1-10
Bolt.
Detailed description of the invention
With reference to the accompanying drawings to describe the check bolt of the utility model and with the automobile of the check bolt.In attached drawing:
Fig. 1 is the explosive view of the check bolt of the utility model；
Fig. 2 is the sectional view of the check bolt installation condition of the utility model；
Sectional view when Fig. 3 is the check bolt working condition of the utility model.
Reference signs list
1, check bolt；11, ontology；111, spiro rod section；112, spline segment；113, annular convex platform；114, axial hole；
1141, contraction section；1142, expansion segment；115, the second radial through-hole；116, chamfering；12, mandril；121, extruded segment；122, it presses
Section；123, the first radial through-hole；124, rounding；13, elastic element；2, nut；3, object to be tightened.
Specific embodiment
Preferred embodiments of the present invention are described with reference to the accompanying drawings.It should be understood by those skilled in the art that
It is that these embodiments are used only for explaining the technical principle of the utility model, it is not intended that limit the protection of the utility model
Range.Although this setup is non-unalterable, this field for example, the second radial through-hole in attached drawing is rectangular opening
Technical staff, which can according to need, makes adjustment to it, to adapt to specific application.For example, being set to round hole
Deng.
It should be noted that term " center ", "upper", "lower", "left", "right", " perpendicular in the description of the present invention,
Directly ", the direction of the instructions such as "horizontal", "inner", "outside" or the term of positional relationship are that direction or position based on the figure are closed
System, this is intended merely to facilitate description, rather than indication or suggestion described device or element must have a particular orientation, with spy
Fixed orientation construction and operation, therefore should not be understood as limiting the present invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In addition it is also necessary to explanation, in the description of the present invention, unless otherwise clearly defined and limited, art
Language " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or
It is integrally connected；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, it can also be by between intermediary
It connects connected, can be the connection inside two elements.To those skilled in the art, can understand as the case may be above-mentioned
The concrete meaning of term in the present invention.
Illustrate that the check bolt of the utility model, Fig. 1 are the explosion of the check bolt of the utility model with reference first to Fig. 1
Figure.
As shown in Figure 1, check bolt 1 is adapted with nut 2 in a kind of possible embodiment, check bolt 1 includes
Ontology 11 and the mandril 12 being set to inside ontology 11.Ontology 11 includes spiro rod section 111, annular convex platform 113 and spline segment 112,
111 outer surface of spiro rod section has screw thread (not shown), and spiro rod section 111 is tightened with nut 2 by the screw thread and is adapted to.Spline segment
112 can be socketed with fastening tool, such as fastening tool is sleeve, double offset ring spanner.Annular convex platform 113 is set to spiro rod section 111
Between spline segment 112, after check bolt 1 and the fastening well of nut 2, annular boss 113 can be supported close to the side of spiro rod section 111
It is connected on object 3 to be tightened.
Illustrate that the check bolt of the utility model, Fig. 2 are the check bolt of the utility model referring to Fig. 2 and Fig. 3
Press sectional view when mandril；Sectional view when Fig. 3 is the check bolt working condition of the utility model.
As shown in Figures 2 and 3, ontology 11 is provided with axial hole 114, and mandril 12 is inserted into axial hole 114 and along axial hole
114 move back and forth.Further, axial hole 114 includes contraction section 1141 and expansion segment 1142, and expansion segment 1142 is set to separate
The one end on 111 head of spiro rod section, contraction section 1141 extend to the head of spiro rod section 111.Accordingly, mandril 12 includes squeezing
Section 121 and pressing section 122, extruded segment 121 can extend into contraction section 1141, and pressing section 122 can extend into expansion segment 1142.
Further, the top of mandril 12 and the head of spiro rod section 111 are respectively arranged with the first radial through-hole 123 and second
Radial through-hole 115, check bolt 1 further include elastic element 13, and elastic element 13 is also cross the first radial through-hole 123 and second
Radial through-hole 115.The length of elastic element 13 is greater than or equal to radical length (the i.e. external screw thread of spiro rod section 111 of spiro rod section 111
Radical length).First radial through-hole 123 is greater than the second radial through-hole 115 along axial height along axial height.By bearing down on one
Elastic element 13 generates elastic deformation and is accommodated in the second radial through-hole 115 when bar 12, and deformation restores after pressing force is eliminated
And the second radial through-hole 115 is stretched out at both ends.Specifically, elastic element 13 is spring leaf.
Alternatively, spring leaf can also only stretching the second radial direction in one end lead to when deformation restores after pressing force elimination
In the second radial through-hole 115, the other end stretches out the second radial through-hole 115 for hole 115, i.e. spring leaf one end.Elastic element 13
It can be other elements with elastic potential energy that can generate deformation, such as plates made of rubber or modified plastics.
The principles of the present invention are as follows: pressing mandril 12 makes extruded segment 122 be resisted against the upper surface of expansion segment 1142, this
When be interspersed in the spring leaf of the first radial through-hole 123 inward at both ends under the drive of mandril 12 and be contracted to the second radial through-hole 115
In；After tightening nut 2, mandril 12 is discharged, spring leaf expands outwardly both ends and stretches out the second radial through-hole 115 and be resisted against nut 2
End face on, thus prevent check bolt 1 loosening skid off nut 2.
Further, in order to which spring leaf arc-shaped can be bent, the one of the first top of the radial through-hole 123 far from mandril 12
Side is provided with rounding 124, and the radian of rounding 124 is adapted with the radian of the spring leaf after bending.Further, first is radial logical
Hole 123 and spring leaf are interference fitted, so that the apex of rounding 124 is exactly at the center of spring leaf, interference fit is set
The mode of setting makes spring leaf not cause unilateral Problem of Failure because of movement occurs, while being also prevented from and being hit by a bullet in subsequent vibration processes
Reed skids off.
Preferably, the first radial through-hole 123 and the second radial through-hole 115 are rectangular opening.Alternatively, second is radial logical
It hole 115, can also be with circular through hole etc. because being not necessarily to be interference fitted with spring leaf.
Preferably, cause the first radial through-hole 123 and second radial logical to prevent mandril 12 from rotating during insertion
Hole 115 can not be aligned, and influence the insertion of spring leaf, therefore the cross section of contraction section 1141 and extruded segment 121 is rectangle；Expansion
The cross section of section 1142 and pressing section 122 is circle.The cross section of expansion segment 1142 and pressing section 122 is provided in round,
Its collocation degree with fastening tool can be improved.Alternatively, the cross section of expansion segment 1142 and pressing section 122 may be square
Shape.
Preferably, first end face, extruded segment 121 and pressing section 122 are formed between contraction section 1141 and expansion segment 1142
Between be formed with second end face, when spring leaf is against the upper surface of the second radial through-hole 115, first end face and second end face it
Between be formed with gap.At this point, the presence in gap can guarantee that mandril 12 has enough jacking distances.Though but still it is noted that
Right this setup can guarantee that mandril 12 has enough jacking distances, but also guarantee expansion segment 1142 and pressing section
Gap between 122 should not be too large, to avoid due to jacking, spring leaf deformation is excessive and fail caused by excessive.It needs
Illustrate, the utility model is not necessarily to limit expansion segment 1142 and presses the length scale relationship of section 122, both only needs to meet the
Gap is formed between one end face and second end face, and gap can satisfy above-mentioned condition.
Alternatively, expansion segment 1142 and pressing section 122 can also be removed, as long as at this time by axial hole
114 height is arranged to the spring leaf when the top of mandril 12 to the top of axial hole 114 can be accommodated in the second radial through-hole just
In 115 again be unlikely to because deform it is excessive due to damage within the scope of.
Preferably, the head of spiro rod section 111 has chamfering 116, and the setting of chamfering 116 can make check bolt 1 be easy to
It is inserted into object 3 and nut 2 to be tightened.
Mandril 12 is arranged by the inside of the ontology 11 in check bolt 1 in the utility model, and in ontology 11 and mandril
Through-hole is opened up on 12, and inhibition is formed to nut 2 using the elastic element 13 across two through hole, it is prevented to be detached from check bolt
1, simple structure, anti-loosing effect is significant.In addition to this, the check bolt 1 of the utility model is easy to operate, need to only press mandril
12, elastic element 13 is through in two through hole, without being suitble to large-scale production in other tools.
The utility model additionally provides a kind of automobile, including above-mentioned check bolt 1.
Illustrate the assembling process of the utility model check bolt below with reference to Fig. 1 to Fig. 3.
1, check bolt 1 is inserted into object 3 and docking object to be tightened simultaneously, annular convex platform 113 is connected to be tightened at this time
Object 3；
2, pressing pressing section 122, is accommodated in spring leaf completely in the second radial through-hole 115；
3, check bolt 1 is screwed in into nut 2 and tightened, nut 2 is in the lower section of the second radial through-hole 115 at this time；
4, stop pressing pressing section 122, spring leaf restores deformation and stretches out on the end face for being resisted against nut 2.
So far, it has been combined preferred embodiment shown in the drawings and describes the technical solution of the utility model, still, this
Field technical staff is it is easily understood that the protection scope of the utility model is expressly not limited to these specific embodiments.?
Under the premise of the principles of the present invention, those skilled in the art can make equivalent change to the relevant technologies feature
Or replacement, the technical solution after these changes or replacement are fallen within the protection scope of the utility model.
Claims (11)
1. a kind of check bolt, which is characterized in that the check bolt includes ontology and the mandril for being set to the body interior,
The ontology is provided with axial hole, and the mandril is inserted into the axial hole and moves back and forth along the axial hole, described
Body includes spiro rod section, and the head of the top of the mandril and the spiro rod section is respectively arranged with the first radial through-hole and the second radial direction
Through-hole,
The check bolt further includes elastic element, and the elastic element is also cross first radial through-hole and described second
Radial through-hole, the elastic element are arranged to generate elastic deformation when pressing the mandril and are therefore accommodated in second diameter
Into through-hole, deformation restores after pressing force is eliminated and therefore at least second radial through-hole is stretched out in one end.
2. check bolt according to claim 1, which is characterized in that the length of the elastic element is greater than or equal to described
The radical length of spiro rod section.
3. check bolt according to claim 1, which is characterized in that first radial through-hole and second radial direction are logical
Hole is rectangular opening, and first radial through-hole is greater than second radial through-hole along the axial direction along the axial height
Height.
4. check bolt according to claim 3, which is characterized in that first radial through-hole far from the top one
Side is provided with rounding.
5. check bolt according to claim 4, which is characterized in that the elastic element and the first radial through-hole mistake
It is full of cooperation.
6. check bolt according to claim 5, which is characterized in that the elastic element is spring leaf.
7. check bolt according to claim 1 to 6, which is characterized in that the axial hole include contraction section and
Expansion segment, the expansion segment are set to one end far from the head, and the mandril accordingly includes that can be contained in the receipts
Extruded segment in contracting section and the pressing section that can be contained in the expansion segment.
8. check bolt according to claim 7, which is characterized in that the cross section of the contraction section and the extruded segment is equal
For rectangle；And/or the cross section of the expansion segment and the pressing section is circle.
9. check bolt according to claim 1, which is characterized in that the ontology further includes spline segment and is set to described
Annular boss between spiro rod section and the spline segment, the annular boss can be connected to close to the side on the head to tight
Gu on object, the spline segment can be socketed with fastening tool.
10. check bolt according to claim 9, which is characterized in that the head of the spiro rod section has chamfering.
11. a kind of automobile, which is characterized in that the automobile has locking spiral shell described in any one of the claims 1-10
Bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821870636.1U CN209494822U (en) | 2018-11-13 | 2018-11-13 | Check bolt and automobile with the check bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821870636.1U CN209494822U (en) | 2018-11-13 | 2018-11-13 | Check bolt and automobile with the check bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209494822U true CN209494822U (en) | 2019-10-15 |
Family
ID=68151161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821870636.1U Active CN209494822U (en) | 2018-11-13 | 2018-11-13 | Check bolt and automobile with the check bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209494822U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112278136A (en) * | 2020-11-17 | 2021-01-29 | 上海凤凰自行车江苏有限公司 | Damping device for bicycle frame |
| CN113931917A (en) * | 2021-08-30 | 2022-01-14 | 航天特种材料及工艺技术研究所 | Gear type locking and anti-loosening mechanism |
-
2018
- 2018-11-13 CN CN201821870636.1U patent/CN209494822U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112278136A (en) * | 2020-11-17 | 2021-01-29 | 上海凤凰自行车江苏有限公司 | Damping device for bicycle frame |
| CN113931917A (en) * | 2021-08-30 | 2022-01-14 | 航天特种材料及工艺技术研究所 | Gear type locking and anti-loosening mechanism |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
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Effective date of registration: 20200904 Address after: Susong Road West and Shenzhen Road North, Hefei Economic and Technological Development Zone, Anhui Province Patentee after: Weilai (Anhui) Holding Co., Ltd Address before: 30 Floor of Yihe Building, No. 1 Kangle Plaza, Central, Hong Kong, China Patentee before: NIO NEXTEV Ltd. |