CN106347276B - Vehicle rear protecting - Google Patents
Vehicle rear protecting Download PDFInfo
- Publication number
- CN106347276B CN106347276B CN201611042144.9A CN201611042144A CN106347276B CN 106347276 B CN106347276 B CN 106347276B CN 201611042144 A CN201611042144 A CN 201611042144A CN 106347276 B CN106347276 B CN 106347276B
- Authority
- CN
- China
- Prior art keywords
- swing arm
- chassis runner
- rear bumper
- vehicle
- protecting
- 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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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/56—Fittings damping bouncing force in truck collisions, e.g. bumpers; Arrangements on high-riding vehicles, e.g. lorries, for preventing vehicles or objects from running thereunder
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
- B60R19/24—Arrangements for mounting bumpers on vehicles
- B60R19/38—Arrangements for mounting bumpers on vehicles adjustably or movably mounted, e.g. horizontally displaceable for securing a space between parked vehicles
Abstract
The invention discloses a kind of vehicle rear protectings, are mounted on the tail portion of chassis runner, comprising: rear bumper；Rear-swing arm, one end and the chassis runner of rear-swing arm are rotatedly connected, and the other end and the rear bumper are rotatablely connected；Secondary swing arm, one end of the pair swing arm and chassis runner are rotatablely connected, and the other end and rear bumper are rotatablely connected；Rear-swing arm, secondary swing arm and chassis runner surround a triangle, and the base angle of the triangle is the movable end being connected with rear bumper, and the movable end can move up and down about stringer；The limiting device for limiting the rear-swing arm rotational angle is additionally provided on chassis runner.Present apparatus rear-swing arm, secondary swing arm and chassis runner surround a triangle, and the base angle of triangle is the movable end being connected with rear bumper, and movable end can be up and down about stringer, to realize that departure angle is adjusted.
Description
Technical field
The present invention relates to vehicle tail protective device fields, and in particular to a kind of vehicle rear protecting.
Background technique
With universal, the rising of vehicle fleet size of vehicle, the quantity of traffic accident generation is also more and more, in the traffic accident, there is phase
It is both to pass through when a part of traffic accident knocks into the back pony car often in order to which passive security, front part of vehicle have crumple zone to be originated from
Front part of vehicle carries out crumple by front part of vehicle, reduces the energy during Vehicular impact, but have one during knocking into the back
Kind knocking into the back is car rear-end lorry, since car is short, the problem of lorry rear protecting considers departure angle, and Some vehicles rear protecting
Higher, car crumple zones are often hit less than rear protecting, are staggered with lorry rear protecting or even can directly be bumped against driver's cabin, seriously threaten
Car safety.
As shown in Figure 1, if the rear protecting 21a of lorry 2a can just encounter the front car 1a, the vehicle of lorry 2a
Departure angle A is smaller, it cannot be guaranteed that the passability of lorry 2a.
As shown in Fig. 2, the vehicle departure angle A of such situation lorry is larger, meet passability and during knocking into the back, often
The front of meeting rear portion car 1a can be staggered with rear protecting 21a, and the crumple zones of vehicle cannot be hit with rear protecting, lead to car
It is easy by biggish injury.If rear protecting impinges upon car top, rear protecting can give one downward power of car, small
Car can tilt, and be drilled into lorry lower part.
Summary of the invention
The object of the present invention is to provide a kind of vehicle rear protectings, to guarantee rear car while guaranteeing lorry passability
Safety during knocking into the back.
The present invention provides a kind of vehicle rear protecting to achieve the goals above, is mounted on the tail portion of chassis runner, comprising:
Rear bumper；Rear-swing arm, one end and the chassis runner of rear-swing arm are rotatedly connected, and the other end and the rear bumper are rotatablely connected；
Secondary swing arm, one end of the pair swing arm and chassis runner are rotatablely connected, and the other end and rear bumper are rotatablely connected；Rear-swing arm, pair
Swing arm and chassis runner surround a triangle, and the base angle of the triangle is the movable end being connected with rear bumper, the activity
End can move up and down about stringer；The limiting device for limiting the rear-swing arm rotational angle is additionally provided on chassis runner.
Preferably, the limiting device includes torsion-bar spring and pedestal；The pedestal is fixed on body bottom, the torsion bar
The middle part of spring is fixedly connected with pedestal, and the both ends of the torsion-bar spring rotate after stretching out the chassis runner respectively with rear-swing arm
Connection.
Preferably, a side bottom of the rear bumper towards the chassis runner is fixed with along rear bumper length direction
One idler wheel, the pair swing arm and the rear-swing arm pass through idler wheel respectively and are rotatedly connected with rear bumper, and the bottom end of the idler wheel is made
With stretching out rear bumper downwards.
Preferably, a guide groove is opened up along chassis runner length direction in the bottom surface of the chassis runner；The guide groove
Bottom be arranged a sliding block；A cover board is arranged in the top of the guide groove；It further include attachment screw, the attachment screw is successively worn
It crosses the cover board to be connected with after guide groove with sliding block, the sliding block and secondary swing arm are rotatablely connected.
Preferably, the middle part of the secondary swing arm is the buffer part bent towards stringer side.
Preferably, the buffer part is equipped with notch towards the side of stringer.
Preferably, it is additionally provided with a support portion in the side of secondary swing arm towards rear bumper, the support zone is in bending part
Bottom side, be in contact in the middle part of the end of the support portion and rear bumper.
Preferably, the pedestal includes the mounting plate at top and the fixing sleeve at middle part；The mounting plate is welded on vehicle body bottom
Portion, the fixing sleeve are connect with the torsion-bar spring interference.
Preferably, the secondary swing arm is that casting integrated molding is made.
Effect of the invention is that: rear-swing arm, secondary swing arm and chassis runner surround a triangle, the base angle of triangle for
The connected movable end of rear bumper, that is to say, that the both ends of triangle are connected and fixed with stringer, and other end can be about stringer
It moves up and down, so that rear bumper be driven to move up and down.The adjustable function of rear bumper height is realized, by adjusting rear insurance
The height of thick stick adjusts trafficability and avoids influence of the rear bumper excessive height to rear car.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only one recorded in the present invention
A little embodiments are also possible to obtain other drawings based on these drawings for those of ordinary skill in the art.
Fig. 1 is the usage state diagram of lorry rear protecting when departure angle is smaller in the prior art.
Fig. 2 is the usage state diagram of lorry rear protecting when departure angle is larger in the prior art.
Fig. 3 is the assembling schematic diagram of vehicle rear protecting in the embodiment of the present invention.
Fig. 4 is the explosive view of Fig. 3.
Fig. 5 is the structural schematic diagram of secondary swing arm and chassis runner junction in Fig. 3.
Fig. 6 is the side view of vehicle rear protecting in the embodiment of the present invention.
Fig. 7 is the structural schematic diagram of vehicle rear protecting when car and the collision of vehicle rear protecting originate.
Fig. 8 is the structural schematic diagram that car and vehicle rear protecting collide rear vehicle rear protecting.
In prior art diagram: 1a- car 2a- lorry 21a- rear protecting 22a- wheel A- vehicle departure angle
In figure of the present invention: 1- rear bumper 2- rear-swing arm 3- chassis runner 4- pair swing arm 41- buffer part 42- notch
43- support portion 5- torsion-bar spring 6- pedestal 61- mounting plate 62- fixing sleeve 7- idler wheel 8- guide groove 9- sliding block 10- lid
Plate 11- attachment screw
Specific embodiment
In order to make those skilled in the art more fully understand technical solution of the present invention, below in conjunction with attached drawing to this hair
It is bright to be further detailed.
Ginseng as shown in figure 3 and figure 4, is a kind of vehicle rear protecting provided in an embodiment of the present invention, is mounted on chassis runner
Tail portion, including rear bumper 1 play the role of protecting vehicle tail.
Rear-swing arm 2, one end and the chassis runner 3 of rear-swing arm 2 are rotatedly connected, and the other end and rear bumper 1 are rotatablely connected；?
The limiting device of limitation 2 rotational angle of rear-swing arm is additionally provided on chassis runner 3.
And secondary swing arm 2, one end of secondary swing arm 2 and chassis runner 3 are rotatablely connected, the other end and the rotation of rear bumper 1 connect
It connects.
In the present embodiment, rear-swing arm 2, secondary swing arm 4 and chassis runner 3 surround a triangle, the base angle of triangle be with it is rear
The connected movable end of bumper 1, that is to say, that the both ends of triangle are connected and fixed with chassis runner 3, and other end can be about
Chassis runner 3 moves up and down, so that rear bumper 1 be driven to move up and down.The height-adjustable function of rear bumper 1 is realized, when
When needing passability stronger, rear bumper is raised upwards, improves its departure angle, then passes through limiting device locked and fixed.And
When its normally travel, rear bumper height is reduced to reduce its crumple zones and pierces vehicle along crumple zones after avoiding trolley from knocking into the back
Bottom.
Wherein, limiting device can be fixed on stringer for threaded rod and nut fit form namely threaded rod, one end with
Rear-swing arm is rotatedly connected, and angle adjustment is realized by rotation rear-swing arm, and limit is realized by tightening nut.But this mode,
It is not easy to operate, it need to artificially adjust realization.In the present embodiment, as shown in Fig. 3 to Fig. 4, limiting device includes torsion-bar spring 5 and pedestal
6；Wherein, pedestal 6 is fixed on body bottom, and pedestal 6 specifically includes, the mounting plate 61 at top and the fixing sleeve 62 at middle part；Installation
Plate 61 is welded on stringer, and the middle part of torsion-bar spring 5 is fixedly connected with pedestal 6, and the present embodiment is fixing sleeve 62 and torsion-bar spring
5 middle part interference connection.The both ends of torsion-bar spring 5 are rotatablely connected after stretching out chassis runner 3 respectively with rear-swing arm 2.It is, turning round
It is actually the adjustment area of torsion-bar spring between the middle part and end of bar spring 5, torsion-bar spring adjusts area by this section, can carry out
Certain torsional deformation, thus in rear bumper and when bar contact, rear bumper can carry out automatically it is small move up or decline,
Rear bumper 1 can be by the swing of torsion-bar spring 5, to guarantee passability, guarantee can avoid when passing through obstacle, together
When, torsion-bar spring 5 plays buffering impact stresses effect.
In conjunction with shown in Fig. 4 and Fig. 6, in order to further realize the departure angle adjust automatically of rear bumper, to realize vehicle
When with bar contact, the automatic lifting of departure angle is realized by self structure.It is vertical in rear bumper direction in the present embodiment
One side bottom of beam is fixed with an idler wheel 7 along rear bumper length direction, and secondary swing arm 4 and rear-swing arm 2 are respectively by idler wheel 7 with after
Bumper 1 is rotatedly connected, and the bottom end acting surface of idler wheel 7 extends downwardly rear bumper 1, so that it is guaranteed that it can connect with barrier at first
Touching, idler wheel realize the contact guiding with barrier.
As shown in Figure 1 and Figure 5, the device of this programme can not only adjust up and down to improve departure angle, meanwhile, it can also front and back tune
It is whole, it is specially to open up a guide groove 8 along chassis runner length direction in the bottom surface of chassis runner 3；The bottom of guide groove 8 is arranged
One sliding block 9；A cover board 11 is arranged in the top of guide groove 8；Cover board 11 is connected with sliding block 10 by attachment screw, attachment screw 11 according to
It is secondary to be connected after cover board 10, guide groove 8 with sliding block 9, to realize the connection of sliding block and cover board, and sliding block is fixed on guiding
At slot 8；Sliding block 9 and secondary swing arm are rotatablely connected.In use, sliding block 9 can be moved forward and backward along guide groove 8, so that trolley knocks into the back
When, secondary swing arm 4 can have certain decrement in X-direction, thus, secondary swing arm 4 acts on rear-swing arm 2, and then acts on torsion-bar spring 5,
And pass through the deformation of torsion-bar spring 5, reduce the energy impact in knockout process.
When rear body stroke speed is larger, and torsion-bar spring deformation is not enough to offset Vehicular impact energy, the present embodiment
It is further improved ground, can also be deformed and be offset by secondary swing arm 4, middle part of the secondary swing arm 4 in this programme is towards stringer side
The buffer part 41 of bending；When vehicle and rear bumper bump against, buffer part 41 is gradually straightened, and plays the role of buffering impact force,
It can be found in the process of Fig. 7 to Fig. 8.It is further preferred that buffer part 41 is equipped with notch 42 towards the side of stringer.Due to notch 42
Place is more weak, vehicle forward when, torsion-bar spring 5 is rotated down, and secondary swing arm 4 is gradually straightened, and offsets part by deforming
Rear body is hit.It is additionally provided with a support portion 43 in the side of secondary swing arm 4 towards rear bumper, support portion 43 is located at bending part
The end of bottom side, support portion 43 is in contact with the middle part of rear bumper 1.The design of support portion 43, which is equivalent to, gives secondary swing arm bottom side
One fulcrum, so that secondary swing arm does not generate excessive interference, with rear bumper arm when being impacted power deformation to influence rear bumper
Use.Wherein, secondary swing arm 4 is preferably made of casting integrated molding in processing.
In conclusion special construction of the present apparatus using secondary swing arm, swing arm, guarantees that the vehicle rear bumper road clearance is smaller
While, it is ensured that departure angle is sufficiently large, guarantees trafficability；Meanwhile using torsion-bar spring spring and part distortion come
Vehicular impact energy is offset, rear car is protected.
It is above that certain exemplary embodiments of the invention are only described by way of explanation, undoubtedly, for ability
The those of ordinary skill in domain without departing from the spirit and scope of the present invention can be with a variety of different modes to institute
The embodiment of description is modified.Therefore, above-mentioned attached drawing and description are regarded as illustrative in nature, and should not be construed as to the present invention
The limitation of claims.
Claims (7)
1. a kind of vehicle rear protecting, is mounted on the tail portion of chassis runner characterized by comprising
Rear bumper；
Rear-swing arm, one end and the chassis runner of rear-swing arm are rotatedly connected, and the other end and the rear bumper are rotatablely connected；
Secondary swing arm, one end of the pair swing arm and chassis runner are rotatablely connected, and the other end and rear bumper are rotatablely connected；
Rear-swing arm, secondary swing arm and chassis runner surround a triangle, and the base angle of the triangle is the work being connected with rear bumper
Moved end, the movable end can move up and down about stringer；
The limiting device for limiting the rear-swing arm rotational angle is additionally provided on chassis runner；The limiting device includes torsion bar bullet
Spring and pedestal；The pedestal is fixed between chassis runner, and the middle part of the torsion-bar spring is fixedly connected with pedestal, the torsion bar bullet
The both ends of spring are rotatablely connected after stretching out the chassis runner respectively with rear-swing arm；
One side bottom of the rear bumper towards the chassis runner is fixed with an idler wheel along rear bumper length direction, described
Secondary swing arm and the rear-swing arm pass through idler wheel respectively and are rotatedly connected with rear bumper, and the bottom end acting surface of the idler wheel extends downwardly
Rear bumper；
Vehicle and when bar contact, the bottom end acting surface of the idler wheel can at first with bar contact, to realize departure angle
Automatic lifting.
2. vehicle rear protecting as described in claim 1, which is characterized in that long along chassis runner in the bottom surface of the chassis runner
Degree direction opens up a guide groove；A sliding block is arranged in the bottom of the guide groove；A cover board is arranged in the top of the guide groove；Also wrap
Attachment screw is included, the attachment screw sequentially passes through the cover board and is connected with after guide groove with sliding block, the sliding block and secondary swing arm
Rotation connection.
3. vehicle rear protecting as claimed in claim 1 or 2, which is characterized in that the middle part of the pair swing arm is towards stringer one
The buffer part of lateral bending folding.
4. vehicle rear protecting as claimed in claim 3, which is characterized in that the buffer part is equipped with towards the side of stringer and lacks
Mouthful.
5. vehicle rear protecting as claimed in claim 4, which is characterized in that be additionally provided in the side of secondary swing arm towards rear bumper
One support portion, the support zone are in contact in the middle part of the bottom side of bending part, the end of the support portion and rear bumper.
6. vehicle rear protecting as described in claim 1, which is characterized in that the pedestal includes mounting plate and the middle part at top
Fixing sleeve；The mounting plate is welded on stringer, and the fixing sleeve is connect with the torsion-bar spring interference.
7. vehicle rear protecting as described in claim 1, which is characterized in that the pair swing arm is that casting integrated molding is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611042144.9A CN106347276B (en) | 2016-11-23 | 2016-11-23 | Vehicle rear protecting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611042144.9A CN106347276B (en) | 2016-11-23 | 2016-11-23 | Vehicle rear protecting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106347276A CN106347276A (en) | 2017-01-25 |
| CN106347276B true CN106347276B (en) | 2018-12-14 |
Family
ID=57862603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611042144.9A Active CN106347276B (en) | 2016-11-23 | 2016-11-23 | Vehicle rear protecting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106347276B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108482295A (en) * | 2018-02-06 | 2018-09-04 | 富华中元江苏重机科技有限公司 | A kind of back shroud mounting structure |
| JP6842512B2 (en) * | 2019-07-31 | 2021-03-17 | 本田技研工業株式会社 | Rear structure of the car body |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6176529B1 (en) * | 1999-01-19 | 2001-01-23 | Henschen Div. Of Qds Components | Torsional under-ride guard |
| JP2001088655A (en) * | 1999-09-27 | 2001-04-03 | Mazda Motor Corp | Front body structure for vehicle |
| EP1870291B1 (en) * | 2006-06-24 | 2011-01-26 | Wielton Sa | Communication bumper particulary for semitrailer |
| CN102582553A (en) * | 2012-03-16 | 2012-07-18 | 中煤平朔煤业有限责任公司 | Multilevel anti-collision rear-end preventive buffering device for trucks |
| CN204701576U (en) * | 2015-06-25 | 2015-10-14 | 张亚峰 | Automobile anti-rear end collision cushioning guard fence |
-
2016
- 2016-11-23 CN CN201611042144.9A patent/CN106347276B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN106347276A (en) | 2017-01-25 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Applicant after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: Hefei City, Anhui Province, 230022 East Road No. 176 Applicant before: Anhui Jianghuai Automobile Group Limited by Share Ltd |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |