CN220500643U - Folding vehicle rear safety device - Google Patents
Folding vehicle rear safety device Download PDFInfo
- Publication number
- CN220500643U CN220500643U CN202322124646.8U CN202322124646U CN220500643U CN 220500643 U CN220500643 U CN 220500643U CN 202322124646 U CN202322124646 U CN 202322124646U CN 220500643 U CN220500643 U CN 220500643U
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- crank arms
- crank
- arms
- bumper
- connecting beam
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- 230000033001 locomotion Effects 0.000 claims description 4
- 230000006378 damage Effects 0.000 abstract description 4
- 230000001360 synchronised effect Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 210000001503 joint Anatomy 0.000 description 2
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Body Structure For Vehicles (AREA)
Abstract
The utility model relates to a folding vehicle rear bumper device which comprises a bumper body, a connecting beam and a folding component, wherein the connecting beam is connected with the tail of a vehicle, the connecting line of the middle part of the connecting beam and the bumper body is a central line, the folding component comprises two first crank arms, two second crank arms and a driving piece, the two first crank arms and the two second crank arms are respectively arranged at two sides of the central line, one ends of the two first crank arms are hinged with the connecting beam, the other ends of the two first crank arms are respectively hinged with one ends of the two second crank arms, the other ends of the two second crank arms are hinged with the bumper body, the driving piece is arranged on the connecting beam, and the output end of the driving piece is connected with the two first crank arms and is used for driving the two first crank arms to rotate along the hinge point of the two first crank arms and the connecting beam oppositely or reversely; the folding structure solves the problems that the folding structure of the bumper is arranged at the middle position of the bumper, and when the bumper bears lateral external force, the folding structure is extremely easy to damage and the normal use of the folding structure is affected.
Description
Technical Field
The utility model relates to the technical field of vehicle bumpers, in particular to a folding vehicle rear bumper device.
Background
The bumper is the structure that reduces the injury to the driver and passengers when car striking, in order to adapt to the operation environment of complexity, for example, the freight train is unloaded, the sewage is arranged to the soil pick-up car and is driven under the environment such as rugged road surface, through folding the bumper, adjusts the interval between bumper to the car to adapt to different operational environment, avoid the bumper to damage because of non-traffic accident.
For example, the utility model patent with application number CN201520488562.5 discloses a vehicle bumper folding device, wherein the bumper comprises an upper portion and a lower portion, the upper portion is connected with a frame, the lower portion is rotatably connected with the upper portion, the vehicle bumper folding device further comprises a rotating member, a supporting rod and a linear motion driving device, one end of the supporting rod is connected with the lower portion of the bumper, the other end of the supporting rod is rotatably connected with the rotating member, the middle portion of the rotating member is rotatably connected with the frame, and one end of the rotating member, which is far away from the supporting rod, is connected with the linear motion driving device.
However, the folding structure of the bumper is arranged at the middle position of the bumper, and when the bumper bears lateral external force, the folding structure is extremely easy to damage, and the normal use of the folding structure is affected.
Disclosure of Invention
In view of the foregoing, it is desirable to provide a folding vehicle rear bumper device for solving the problem that the folding structure of the bumper is disposed at the middle position of the bumper, and is extremely fragile when the bumper bears lateral external force, which affects the normal use of the folding structure.
The utility model provides a folding vehicle rear bumper device which comprises a bumper body, a connecting beam and a folding assembly, wherein the connecting beam is connected with the tail of a vehicle, a connecting line between the connecting beam and the middle part of the bumper body is a central line, the folding assembly comprises two first crank arms, two second crank arms and a driving piece, the two first crank arms and the two second crank arms are respectively arranged on two sides of the central line, one ends of the two first crank arms are hinged with the connecting beam, the other ends of the two first crank arms are respectively hinged with one ends of the two second crank arms, the other ends of the two second crank arms are hinged with the bumper body, the driving piece is arranged on the connecting beam, and the output end of the driving piece is connected with the two first crank arms and is used for driving the two first crank arms to rotate relatively or reversely along the hinging point of the two first crank arms and the connecting beam.
Further, the two first crank arms can rotate to a first position and a second position, when the two first crank arms rotate to the first position, the two first crank arms and the two second crank arms are arranged in parallel with the central line, and when the two first crank arms rotate to the second position, the two first crank arms and the two second crank arms are arranged perpendicular to the central line.
Further, the driving piece includes first crank arm connecting rod, two cylinders and two first adjusting levers, first crank arm connecting rod with the tie beam rotates to be connected, the axis of rotation of first crank arm connecting rod is located on the central line, two the cylinder is located the central line both sides, two the direction of movement parallel arrangement of the output shaft of cylinder, two first adjusting levers are located the central line both sides, two first adjusting levers parallel arrangement, two the cylinder is on the back one side respectively with two first crank arm articulates, two the cylinder is on the output shaft, and respectively with two the opposite one end of first adjusting levers articulates on the first crank arm connecting rod, two the opposite one end of first adjusting levers respectively with two first crank arm articulates.
Further, the cylinder and the first adjusting pull rod positioned on the same side of the central line are overlapped with the hinge point of the first crank arm.
Further, the hinge points between the output shafts of the two cylinders and the two first adjusting pull rods are respectively arranged at the two ends of the long shaft of the first crank arm connecting rod.
Further, the folding assembly further comprises a connecting piece, and the two second crank arms are connected through the connecting piece and used for limiting the two second crank arms to rotate relatively or reversely along the hinge point of the second crank arms and the bumper body.
Further, the connecting piece includes second crank arm connecting rod and two second regulation pull rods, the second crank arm connecting rod with the bumper body rotates to be connected, the axis of rotation of second crank arm connecting rod is located on the central line, two second regulation pull rods parallel arrangement, two the second one end of adjusting the pull rod and being carried on the back mutually is articulated with two respectively with the second crank arm, two the second one end of adjusting the pull rod relatively with the second crank arm connecting rod articulates, and two pin joints are located respectively the both ends position department of the major axis of second crank arm connecting rod.
Further, two sides opposite to the first crank arm and two sides opposite to the second crank arm are fixedly connected with limiting blocks, and when the two first crank arms rotate to the second position, the limiting blocks on the first crank arm and the limiting blocks on the second crank arm, which are positioned on the same side of the central line, are in butt joint.
Further, the connecting beam is disposed parallel to the bumper body.
Further, two stand columns are fixedly connected to the connecting beam, and the connecting beam is fixedly connected with the tail of the vehicle through the two stand columns.
Compared with the prior art, through setting up the one end and the tie-beam hinge of two first turning arms, the other end of two first turning arms articulates with the one end of two second turning arms respectively, the other end and the bumper body of two second turning arms are articulated, under the effect of driving piece, can promote two first turning arms along its hinge point relative or the rotation of being out of the way with the tie-beam, when two first turning arms relatively rotate, two second turning arms synchronous relative rotation, the distance between the bumper body to the tie-beam increases gradually, when two first turning arms are turned on the back, two second turning arms synchronous phase-back rotates, the distance between the bumper body to the tie-beam reduces gradually this moment, thereby adjust the distance of bumper to the automobile afterbody, in order to realize folding function, because two first turning arms and two second turning arms are all relative to the both sides of locating the central line, when the bumper body is suffered the external force of side direction, the first turning arm and the second turning arm that is located one side of the center line bears the extrusion force that its bumper body transmitted, the first turning arm and the second turning arm that is located the second turning arm bear the other side, the first turning arm and the second turning arm the first side of the bumper bears the side of the side force, the first turning arm and the second turning arm side of the side bearing the first side of the bumper reduces the side force, the side of the side force is born by the first side of the bumper, the side force is reduced.
Drawings
FIG. 1 is a schematic view of a folding vehicle rear safety device according to an embodiment of the present utility model when the folding vehicle rear safety device is unfolded as a whole;
fig. 2 is a schematic structural diagram of a folding vehicle rear safety device according to an embodiment of the present utility model when the folding vehicle rear safety device is integrally folded.
Detailed Description
Preferred embodiments of the present utility model will now be described in detail with reference to the accompanying drawings, which form a part hereof, and together with the description serve to explain the principles of the utility model, and are not intended to limit the scope of the utility model.
As shown in fig. 1-2, the folding vehicle rear bumper device provided by the utility model comprises a bumper body 100, a connecting beam 200 and a folding assembly 300, wherein the connecting beam 200 is connected with the tail of a vehicle, the connecting line between the connecting beam 200 and the middle part of the bumper body 100 is a central line, the folding assembly 300 comprises two first crank arms 310, two second crank arms 320 and a driving piece 330, the two first crank arms 310 and the two second crank arms 320 are respectively arranged on two sides of the central line, one end of each first crank arm 310 is hinged with the connecting beam 200, the other end of each first crank arm 310 is respectively hinged with one end of each second crank arm 320, the other end of each second crank arm 320 is hinged with the bumper body 100, the driving piece 330 is arranged on the connecting beam 200, and the output end of the driving piece 330 is connected with the two first crank arms 310 and is used for driving the two first crank arms 310 to rotate along the hinge points of the two first crank arms 310 and the connecting beam 200 oppositely or reversely.
In implementation, through setting up the one end of two first crank arms 310 and articulated with tie-beam 200, the other end of two first crank arms 310 articulates with the one end of two second crank arms 320 respectively, the other end of two second crank arms 320 articulates with bumper body 100, under the effect of driving piece 330, can promote two first crank arms 310 along its articulated point relative or the opposite side rotation with tie-beam 200, when two first crank arms 310 relatively rotate, two second crank arms 320 synchronous relative rotation, the distance between bumper body 100 to tie-beam 200 increases gradually, when two first crank arms 310 are rotated in opposite directions, the distance between two second crank arms 320 synchronous reverse rotation, at this moment, bumper body 100 reduces gradually to tie-beam 200, thereby adjust bumper to the distance of car afterbody, in order to realize collapsible function, because two first crank arms 310 and two second crank arms 320 are all located the both sides of the center line, when bumper body 100 is at the opposite side external force of side direction, first crank arms 310 and second crank arms 320 are located at center line one side of center line are born with the side force of the first crank arms 310 and the second crank arms 320 are born with the side force of the second crank arms 320, the first side of the bumper body is born with the force of the first side of the bumper body 320 and the second crank arms 320 is born with the force of the first side of the second crank arms 320, the side of the first side of the bumper body is born with the force of the first side of the bumper body is reduced, and the second side of the body is born force of the strength of the bumper body 320 is born by the first side and the side of the strength of the second side of the body 320 is reduced, and the side of the strength of the bumper body is 100 is born and the side and the strength is 320 is situated side.
The bumper body 100 in the present embodiment is a structure for protecting the tail of a vehicle, which can be conceived by those skilled in the art.
The connecting beam 200 in this embodiment is connected to the vehicle tail portion, and the line connecting the connecting beam 200 and the middle portion of the bumper body 100 is the center line.
The folding assembly 300 in this embodiment is a structure for adjusting the distance of the bumper body 100 to the connecting beam 200. Specifically, the folding assembly 300 includes two first crank arms 310, two second crank arms 320 and a driving member 330, where the two first crank arms 310 and the two second crank arms 320 are respectively disposed on two sides of the center line, one end of each of the two first crank arms 310 is hinged to the connecting beam 200, the other ends of the two first crank arms 310 are respectively hinged to one ends of the two second crank arms 320, the other ends of the two second crank arms 320 are hinged to the bumper body 100, the driving member 330 is mounted on the connecting beam 200, and an output end of the driving member 330 is connected to the two first crank arms 310 to drive the two first crank arms 310 to rotate along the hinge points of the two first crank arms 310 and the connecting beam 200 opposite to or opposite to each other.
In one embodiment, the two first crank arms 310 are rotatable to a first position and a second position, when the two first crank arms 310 are rotated to the first position, the two first crank arms 310 and the two second crank arms 320 are each disposed parallel to the center line, and when the two first crank arms 310 are rotated to the second position, the two first crank arms 310 and the two second crank arms 320 are each disposed perpendicular to the center line.
Of course, it is understood that the two first crank arms 310 are rotatable and stopped at a position where they form an obtuse angle with the second crank arm 320.
In one embodiment, the driving member 330 includes a first crank arm link 331, two cylinders 332 and two first adjusting levers 333, the first crank arm link 331 is rotatably connected to the connecting beam 200, the rotation axis of the first crank arm link 331 is located on the central line, the two cylinders 332 are located at two sides of the central line, the moving directions of the output shafts of the two cylinders 332 are parallel, the two first adjusting levers 333 are located at two sides of the central line, the two first adjusting levers 333 are parallel, opposite sides of the two cylinders 332 are hinged to the two first crank arms 310 respectively, opposite sides of the two cylinders 332 are output shafts, opposite ends of the two cylinders 332 are hinged to the first crank arm link 331 respectively, and opposite ends of the two first adjusting levers 333 are hinged to the two first crank arms 310 respectively.
Wherein the cylinder 332 and the first adjustment lever 333 located at the same side of the center line overlap with the hinge point of the first crank arm 310. The hinge points between the output shafts of the two cylinders 332 and the two first adjustment levers 333 are respectively provided at both end positions of the long axis of the first crank arm link 331.
In order to define the rotation directions of the two second crank arms 320, in one embodiment, the folding assembly 300 further includes a connecting member 340, and the two second crank arms 320 are connected via the connecting member 340, so as to define the rotation of the two second crank arms 320 along the hinge point thereof opposite to or opposite to the hinge point of the bumper body 100.
The connecting piece 340 includes a second crank arm connecting rod 341 and two second adjusting rods 342, the second crank arm connecting rod 341 is rotationally connected with the bumper body 100, the rotation axis of the second crank arm connecting rod 341 is located on the central line, the two second adjusting rods 342 are arranged in parallel, one ends of the two second adjusting rods 342 opposite to each other are respectively hinged with the two second crank arms 320, one ends of the two second adjusting rods 342 opposite to each other are hinged with the second crank arm connecting rod 341, and two hinge points are respectively arranged at two end positions of the long shaft of the second crank arm connecting rod 341.
It can be understood that the first adjusting rod 333 and the second adjusting rod 342 are rods with elastic expansion function, for example, each rod comprises a first rod body, a second rod body and a spring, the first rod body and the second rod body are coaxially arranged, the first rod body and the second rod body are slidably connected through a groove formed in the first rod body, the spring is arranged in the groove, one end of the spring is fixedly connected with the inner bottom wall of the groove, and the other end of the spring is fixedly connected with the second rod body.
In order to avoid collision between the first crank arm 310 and the second crank arm 320, in one embodiment, two sides opposite to the first crank arm 310 and two sides opposite to the second crank arm 320 are fixedly connected with a limiting block 350, and when the two first crank arms 310 rotate to the second position, the limiting block 350 on the first crank arm 310 located on the same side of the center line is abutted with the limiting block 350 on the second crank arm 320.
In one embodiment, the connecting beam 200 is disposed parallel to the bumper body 100. Wherein, two stand columns are fixedly connected on the connecting beam 200, and the connecting beam 200 is fixedly connected with the tail part of the vehicle through the two stand columns.
Compared with the prior art: through setting up the one end of two first turning arms 310 and articulated with tie-beam 200, the other end of two first turning arms 310 articulates with the one end of two second turning arms 320 respectively, the other end of two second turning arms 320 articulates with bumper body 100, under the effect of driving piece 330, can promote two first turning arms 310 along its articulated point relative or the rotation of being opposite to each other with tie-beam 200, when two first turning arms 310 relatively rotate, two second turning arms 320 synchronous relative rotation, the distance between bumper body 100 to tie-beam 200 increases gradually, when two first turning arms 310 are rotated on the back of the body, two second turning arms 320 synchronous rotation on the back of the body, the distance between bumper body 100 to tie-beam 200 reduces gradually, thereby adjust the distance of bumper to the automobile afterbody, in order to realize collapsible function, because two first turning arms 310 and two second turning arms 320 are all relatively located the both sides of central line, when the bumper body 100 is at the external force that is suffered to side, the first turning arms 310 and second turning arms 320 are located on one side of the central line are located the side of the first turning arms 310 and the second turning arms 320 are born with the first side of the bumper body and the second turning arms 320 is born with the first side of the side force of the bumper body 320, the first side of the side force of the bumper body is born with the first side force of the bumper body is reduced, and the second turning arms 320 is born by the side force of the bumper body is reduced, and the side force of the side and the body is 100 is reduced.
The present utility model is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present utility model are intended to be included in the scope of the present utility model.
Claims (10)
1. A folding vehicle rear bumper device, which is characterized by comprising a bumper body, a connecting beam and a folding assembly;
the connecting beam is connected with the tail of the vehicle, and the connecting line of the connecting beam and the middle part of the bumper body is a central line;
the folding assembly comprises two first crank arms, two second crank arms and a driving piece, wherein the two first crank arms and the two second crank arms are respectively arranged on two sides of a central line, one end of each first crank arm is hinged with the connecting beam, the other end of each first crank arm is respectively hinged with one end of each second crank arm, the other end of each second crank arm is hinged with the bumper body, the driving piece is arranged on the connecting beam, and the output end of the driving piece is connected with the two first crank arms and used for driving the two first crank arms to rotate along the opposite or opposite directions of the hinge point of the connecting beam.
2. The folding vehicle rear safety device according to claim 1, wherein the two first crank arms are rotatable to a first position and a second position, both the two first crank arms and both the second crank arms are arranged in parallel with the center line when the two first crank arms are rotated to the first position, and both the two first crank arms and both the second crank arms are arranged perpendicular to the center line when the two first crank arms are rotated to the second position.
3. The folding vehicle rear safety device according to claim 1, wherein the driving member comprises a first crank arm connecting rod, two cylinders and two first adjusting pull rods, the first crank arm connecting rod is rotatably connected with the connecting beam, the rotation axis of the first crank arm connecting rod is located on the central line, the two cylinders are arranged on two sides of the central line, the movement directions of the output shafts of the two cylinders are arranged in parallel, the two first adjusting pull rods are arranged on two sides of the central line, the two first adjusting pull rods are arranged in parallel, one sides of the two cylinders opposite to each other are respectively hinged with the two first crank arms, one sides of the two cylinders opposite to each other are respectively hinged with the output shafts, one ends of the two first adjusting pull rods opposite to each other are respectively hinged with the two first crank arms.
4. A folding vehicle rear safety device according to claim 3, wherein the cylinder and the first adjusting lever located on the same side of the center line overlap with the hinge point of the first crank arm.
5. A folding vehicle rear safety device according to claim 3, wherein the hinge points between the output shafts of the two cylinders and the two first adjusting links are provided at both end positions of the long axis of the first crank link.
6. The folding vehicle rear bumper of claim 1, wherein the folding assembly further comprises a connector, and the two second arms are connected via the connector to define a hinge point along which the two second arms pivot relative to or away from the bumper body.
7. The folding vehicle rear safety device according to claim 6, wherein the connecting member includes a second crank arm connecting rod and two second adjusting levers, the second crank arm connecting rod is rotatably connected with the bumper body, a rotation axis of the second crank arm connecting rod is located on the central line, the two second adjusting levers are arranged in parallel, one ends of the two second adjusting levers opposite to each other are hinged to the two second crank arms, the opposite ends of the two second adjusting levers are hinged to the second crank arm connecting rod, and two hinge points are respectively arranged at two end positions of a long shaft of the second crank arm connecting rod.
8. The folding vehicle rear safety device according to claim 2, wherein the two opposite sides of the first crank arms and the two opposite sides of the second crank arms are fixedly connected with limiting blocks, and when the two first crank arms rotate to the second position, the limiting blocks on the first crank arms positioned on the same side of the center line are abutted with the limiting blocks on the second crank arms.
9. The folding vehicular rear bumper apparatus according to claim 1, wherein the connecting beam is provided parallel to the bumper body.
10. The folding vehicle rear safety device according to claim 1, wherein two upright posts are fixedly connected to the connecting beam, and the connecting beam is fixedly connected to the vehicle tail portion via the two upright posts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322124646.8U CN220500643U (en) | 2023-08-07 | 2023-08-07 | Folding vehicle rear safety device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322124646.8U CN220500643U (en) | 2023-08-07 | 2023-08-07 | Folding vehicle rear safety device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220500643U true CN220500643U (en) | 2024-02-20 |
Family
ID=89877931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322124646.8U Active CN220500643U (en) | 2023-08-07 | 2023-08-07 | Folding vehicle rear safety device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220500643U (en) |
-
2023
- 2023-08-07 CN CN202322124646.8U patent/CN220500643U/en active Active
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