CN206458707U - A kind of screw retention mechanism and vehicle - Google Patents

Abstract

The application provides a kind of screw retention mechanism and vehicle, wherein screw retention mechanism includes bolt and the anti-release member being arranged on the bolt, the anti-release member includes limiting the locking end of the bolt rotation and extends the fixing end to be formed from the locking end, and the fixing end is assembled on vehicle body.The application eliminates the hidden danger of lower swing arm bolt looseness by being arranged on the anti-release member of vehicle frame and lower swing arm, improves the security performance that vehicle is used.

Description

A kind of screw retention mechanism and vehicle

Technical field

The application is related to automotive field, more particularly to a kind of screw retention mechanism and vehicle.

Background technology

The connection of moving component is realized often through bolt in the vehicle body of vehicle, such as is used between lower swing arm and vehicle frame Lower swing arm regulating bolt is used to adjust wheel alignment parameter in prescribed limit, and the riding stability and security to vehicle are extremely closed It is important.Bottom arm bolt after fastening loosens situation not in vehicle emerged in operation, if loosening, four-wheel aligner can be caused to join Number change, so as to cause the problems such as running out the way, abnormal tyre wear and tear.It is many to prevent lower swing arm bolt looseness in correlation technique Number vehicle is fixed using locking nut, but does not ensure that the fastening of bottom arm bolt so；For lower swing arm bulb two The mounting means that end face coordinates with subframe U-shaped opening, some vehicles increase adjusting pad at lower swing arm and subframe mating surface Piece, can so increase the effective torque that lower swing arm coordinates with subframe, but lower swing arm bolt looseness can not be completely eliminated Hidden danger.Need strictly to control lower swing arm and subframe fit dimension and flatness in the implementation process of correlation technique simultaneously, carry The processing technology and coherence request of high subframe and lower swing arm, cost are greatly increased.

Utility model content

In view of this, the application provides a kind of screw retention mechanism and vehicle, eliminates the hidden danger that bolt connection loosens.

Specifically, the application is achieved by the following technical solution：

A kind of screw retention mechanism, including bolt and the anti-release member being arranged on the bolt, the anti-release member include limit Make the locking end of the bolt rotation and extend the fixing end to be formed from the locking end, the fixing end is assembled in vehicle body On.

The anti-release member fixed with vehicle body can limit the rotation of bolt, because by the connection of fixing end and vehicle body, can Ensure that nut is unable to relative frame rotation, so as to realize locking effect.This is designed to overcome in correlation technique by friction The drawbacks of realizing locking, it is ensured that bolt will not loosen in vibrations or abrasion.

Further, the locking end and fixing end are connected by connecting portion and positioned at different horizontal planes.The design energy The nut of different sizes, height is enough adapted to, the adaptability of anti-release member is improved.

Further, the locking end is provided with the connecting hole coordinated with the bolt, and the engaging internal surface of hole is polygon. Bolt is blocked by polygon, can again ensure to reduce the difficulty of adjustment while anti-loosing effect, simplify production technology.

Further, the polygonal side number is 6~30.The selection of polygon edge number taken into account locking mistake effect and The difficulty of proper angle is adjusted to, ease for use is improved.

Further, the fixing end, which is provided with locking hole, the locking hole, is provided with bolt by the fixing end and institute State vehicle body connection.This is designed to easily install anti-release member, reduces the difficulty of production, reduces upgrade cost.

Further, the locking hole is bar hole, and the two ends of the bar hole are circular arc, the radius of the circular arc and institute The lenth ratio for stating the straight flange of locking hole is 0.3~1.5.This is designed to the stroke for providing anti-release member adjustment, to adapt to difference Installation situation.

Further, the vehicle body includes the lower swing arm and vehicle frame worn for the bolt, between the bolt and vehicle frame Provided with adjust pad.The design ensure during the assembling of the parts such as lower swing arm and vehicle frame each relative position for associate parts accurately, Reliably.

Further, the height of the connecting portion is more than the height of the adjust pad and less than the adjust pad and spiral shell Female height summation.Set by the height of connecting portion, locking end can be made preferably to engage bolt, improve anti-loosing effect.

Further, the bolt includes stud and nut, and the locking end engages with the nut.The design preferences are tight Consolidate being easier the nut loosened, then ensure the number of components of reduction while anti-loosing effect, reduce weight.

A kind of vehicle, including vehicle body, the vehicle body are provided with screw retention mechanism.The design, which is advantageous in that, to be reduced Bolt looseness is possible on vehicle, improves the steadiness of connecting portion, lifts vehicle general safety.

The technical scheme that embodiments herein is provided can include the following benefits：

The hidden danger of lower swing arm bolt looseness is eliminated by setting up anti-release member, it is to avoid vehicle causes because of four-wheel Parameters variation The problems such as running out the way, abnormal tyre wear and tear, improves vehicle performance.

It should be appreciated that the general description of the above and detailed description hereinafter are only exemplary and explanatory, not The application can be limited.

Brief description of the drawings

Accompanying drawing herein is merged in specification and constitutes the part of this specification, shows the implementation for meeting the application Example, and be used to together with specification to explain the principle of the application.

Fig. 1 is the schematic diagram of the screw retention mechanism shown in the exemplary embodiment of the application one；

Fig. 2 is enlarged drawing at the A of Tu1Zhong screw retentions mechanism；

Fig. 3 is the anti-release member schematic diagram of Tu1Zhong screw retentions mechanism.

Embodiment

Here exemplary embodiment will be illustrated in detail, its example is illustrated in the accompanying drawings.Following description is related to During accompanying drawing, unless otherwise indicated, the same numbers in different accompanying drawings represent same or analogous key element.Following exemplary embodiment Described in embodiment do not represent all embodiments consistent with the application.On the contrary, they be only with it is such as appended The example of the consistent apparatus and method of some aspects be described in detail in claims, the application.

It is the purpose only merely for description specific embodiment in term used in this application, and is not intended to be limiting the application. " one kind ", " described " and "the" of singulative used in the application and appended claims are also intended to including majority Form, unless context clearly shows that other implications.It is also understood that term "and/or" used herein refers to and wrapped It may be combined containing one or more associated any or all of project listed.

It will be appreciated that though various information, but this may be described using term first, second, third, etc. in the application A little information should not necessarily be limited by these terms.These terms are only used for same type of information being distinguished from each other out.For example, not departing from In the case of the application scope, the first information can also be referred to as the second information, similarly, and the second information can also be referred to as One information.Depending on linguistic context, word as used in this " if " can be construed to " ... when " or " when ... When " or " in response to determining ".

Fig. 1 is the schematic diagram of the screw retention mechanism shown in the exemplary embodiment of the application one；Fig. 2 is that bolt is prevented in Fig. 1 Enlarged drawing at the A of loose mechanism；Fig. 3 is the schematic diagram of anti-release member 5 of Tu1Zhong screw retentions mechanism.

In one embodiment, as shown in Figures 1 to 3, a kind of screw retention mechanism, including bolt 2 and it is arranged on the bolt 2 On anti-release member 5, the anti-release member 5 includes limiting the locking end 52 and extend from the locking end 52 that the bolt 2 rotates The fixing end 54 of formation, the fixing end 54 is assembled on vehicle body

Bolt 2 is lower swing arm regulating bolt in the present embodiment, and vehicle body includes lower swing arm 3 and vehicle frame 1, lower swing arm regulation spiral shell Bolt is an eccentric bolt, passes through the adjustment of eccentric bolt, it is ensured that wheel alignment parameter is normal, it is to avoid running out the way, tire The problems such as inordinate wear, produces.Under conditions of the rectification of vehicle frame 1 technique is relatively difficult to ensure card, to ensure that lower swing arm regulating bolt is not loose It is dynamic, increase a kind of screw retention mechanism on the basis of correlation technique, anti-release member 5 is fixed on the crossbeam of vehicle frame 1, for blocking The nut 22 of lower swing arm regulating bolt, by limiting the rotation of nut 22 with the anti-release member 5 that vehicle frame 1 is fixed, can overcome correlation The drawbacks of realizing locking by friction in technology, so as to play the purpose for preventing that lower swing arm regulating bolt from loosening.

In one embodiment, the bolt 2 includes stud 21 and nut 22, and the locking end 52 is blocked with the nut 22 Close.Stud 21 and nut 22 differ larger in weight, and the weight of stud 21 is larger therefore rotary inertia is larger, and stud 21 exists Need to overcome the frictional force of lower swing arm 3 and vehicle frame 1 during rotation, therefore more difficult rotate；But the mass of nut 22 is small to rotate used Amount is smaller, and is limited except with being moved in addition to the end-face friction of vehicle frame 1 without others, therefore is easier to rotate, this reality The design preferences for applying example fasten the nut 22 easily loosened, then ensure the number of components of reduction while anti-loosing effect, drop Low weight.

In one embodiment, the anti-release member 5 includes the locking end 52 that engages with the nut 22 and from the locking end 52 extensions form and are assembled in the fixing end 54 of the vehicle frame 1.The locking end 52 and fixing end 54 are connected by connecting portion 53 And positioned at different horizontal planes, connecting portion 53 forms the locking end 52 shifted to install and fixing end 54.Install for convenience, spiral shell Mother 22 will be typically higher than the plane of vehicle frame 1, therefore for two planes misplaced of preferably fitting.Anti-release member 5 is in the present embodiment In be designed as the structure of zigzag, pass through fixing end 54 and the connection of vehicle frame 1, it can be ensured that nut 22 is unable to 1 turn of relative frame It is dynamic, so as to realize locking effect.And the nut 22 of different sizes, height is can adapt to, the adaptation of anti-release member 5 is improved Property.

In one embodiment, the locking end 52 is provided with the connecting hole 51 coordinated with the bolt 2, the connecting hole 51 Surface is polygon.Polygonal side number is 24.Polygonal side number is smaller, and the contact area with nut 22 is bigger, can bear Bigger locking torque, but nut 22 is locked next time during adjustment, it is necessary to rotate bigger angle and could realize； Polygonal side number is more, and nut 22 is during adjustment, it is only necessary to rotates less angle and can be achieved with locking next time, Convenient regulation, but diminish with the contact area of nut 22, the locking torque that can be born is smaller；Therefore go out from the angle of principle Hair, only one straight flange coordinates the major arc with the circumscribed circle of nut 22 also to realize the effect of locking, but locking in order to take into account Mistake effect and be adjusted to the difficulty of proper angle, the polygonal side number in the present embodiment is 24.

In one embodiment, the fixing end 54 is provided with locking hole, and locking hole described in 55 is interior will be described solid provided with bolt 6 Fixed end 54 is connected with the vehicle frame 1, and the locking hole 55 is bar hole, and the two ends of the locking hole 55 are circular arc 551, the circle The lenth ratio of the radius of arc 551 and the straight flange 552 of the locking hole 55 is 0.5.This is designed to provide what anti-release member 5 was adjusted Stroke, to adapt to different installation situations.

In one embodiment, adjust pad 4 is provided between the bolt 2 and vehicle frame 1.The height of the connecting portion 53 is more than The height of the adjust pad 4 and less than the height summation of the adjust pad 4 and nut 22.Set by the height of connecting portion 53 Put, locking end 52 preferably engaging bolt 2 can be made, anti-loosing effect is improved.In the present embodiment, locking end 52 is fastened on nut Middle part in 22 short transverses.

In installation process, vehicle is finished after four-wheel aligner, and in the nut 22 that fastening stud 21 coordinates, torque is first got to The lower limit of the claimed range of nut 22, sees whether anti-release member 5 can block nut 22, if can not, increase torque, until anti-release member 5 just block nut 22, must be tightening direction device to hole when blocking referred to implication, not allow opposite direction to release device to hole, card After in place, fastening clamping screw 6 requires torque to the bolt 2.So anti-release member 5 is fixed on vehicle frame 1 by clamping screw 6, The polygon connecting hole 51 of anti-release member 5 blocks the nut 22 coordinated with stud 21, so as to play the purpose for preventing that bolt 2 from loosening.

For device embodiment, because it corresponds essentially to embodiment of the method, so related part is real referring to method Apply the part explanation of example.Device embodiment described above is only schematical, wherein described be used as separating component The unit of explanation can be or may not be physically separate, and the part shown as unit can be or can also It is not physical location, you can with positioned at a place, or can also be distributed on multiple NEs.Can be according to reality Selection some or all of module therein is needed to realize the purpose of application scheme.Those of ordinary skill in the art are not paying In the case of going out creative work, you can to understand and implement.

The preferred embodiment of the application is the foregoing is only, not to limit the application, all essences in the application God is with principle, and any modification, equivalent substitution and improvements done etc. should be included within the scope of the application protection.

Claims (10)

1. a kind of screw retention mechanism, it is characterised in that described locking including bolt and the anti-release member being arranged on the bolt Part includes limiting the locking end of the bolt rotation and extends the fixing end to be formed, the fixing end assembling from the locking end On vehicle body.

2. screw retention mechanism as claimed in claim 1, it is characterised in that the locking end and fixing end are connected by connecting portion Connect and positioned at different horizontal planes.

3. screw retention mechanism as claimed in claim 1, it is characterised in that the locking end is provided with what is coordinated with the bolt Connecting hole, the engaging internal surface of hole is polygon.

4. screw retention mechanism as claimed in claim 3, it is characterised in that the polygonal side number is 6~30.

5. screw retention mechanism as claimed in claim 1, it is characterised in that the fixing end is provided with locking hole, the lock The fixing end is connected with the vehicle body provided with bolt in tieholen.

6. screw retention mechanism as claimed in claim 5, it is characterised in that the locking hole is bar hole, the bar hole Two ends be circular arc, the lenth ratio of the radius of the circular arc and the locking hole straight flange is 0.3~1.5.

7. screw retention mechanism as claimed in claim 2, it is characterised in that the vehicle body includes wearing down for the bolt Swing arm and vehicle frame, are provided with adjust pad between the bolt and vehicle frame.

8. screw retention mechanism as claimed in claim 7, it is characterised in that the height of the connecting portion is more than the adjusting pad The height of piece and less than the height summation of the adjust pad and nut.

9. screw retention mechanism as claimed in claim 1, it is characterised in that the bolt includes stud and nut, described anti- Nut described in Song Duanyu engages.

10. a kind of vehicle, including vehicle body, it is characterised in that the vehicle body is provided with as described in any one of claim 1~9 Screw retention mechanism.