CN113386696B - Collision buffer protection device suitable for vehicle afterbody - Google Patents
Collision buffer protection device suitable for vehicle afterbody Download PDFInfo
- Publication number
- CN113386696B CN113386696B CN202110784328.7A CN202110784328A CN113386696B CN 113386696 B CN113386696 B CN 113386696B CN 202110784328 A CN202110784328 A CN 202110784328A CN 113386696 B CN113386696 B CN 113386696B
- Authority
- CN
- China
- Prior art keywords
- crumple
- crumpling
- energy
- vehicle
- column
- 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.)
- Active
Links
Images
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
-
- 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
- B60R19/18—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by the cross-section; Means within the bumper to absorb impact
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vibration Dampers (AREA)
Abstract
The invention discloses a collision buffer protection device suitable for a vehicle tail part, which comprises a bumper, a crumple energy-absorbing assembly and an air bag assembly, wherein the bumper is connected with the bottom of the vehicle tail part through the two crumple energy-absorbing assemblies; the invention realizes the buffer protection of rear-end collision from the rear of the truck, avoids the occurrence of underride collision, reduces collision loss and ensures the life and property safety of road traffic participants.
Description
Technical Field
The invention relates to a collision buffer protection device suitable for a vehicle tail, and belongs to the technical field of vehicle safety devices.
Background
With the rapid development of society, the logistics transportation industry is rapidly advanced, and in the logistics transportation process, land transportation is the most main transportation mode, so that the number of trucks used for land transportation is increased year by year; the truck is generally called as a truck, also called as a truck, and is mainly used for transporting goods, the truck transportation is a main freight transportation mode, the proportion of the truck transportation in the land country in China to the whole transportation is very high, the truck generally runs at a lower speed in the transportation process, sometimes even needs to be stopped for maintenance, and the condition can often cause rear-end collision accidents of a car and the truck which run in the same direction and have higher speed; particularly on a highway, the rear-end collision is easy to happen, in rainy, snowy and foggy weather, the rear-end collision is more, and personnel and property loss caused by the rear-end collision is very large; the existing bumper adopted at the tail of the truck generally has higher rigidity and strength, but lacks a certain buffer function, and has limited buffer effect when rear-end collision occurs, so that the rear-end vehicle is strongly impacted to cause serious traffic accidents; therefore, a collision buffer protection device for the tail of the truck needs to be redesigned, so that underride collision from the rear of the truck is prevented, collision loss is reduced, and life and property safety of road traffic participants is guaranteed.
Disclosure of Invention
The invention aims to solve the problems in the prior art, and provides a collision buffer protection device suitable for the tail of a vehicle, which can realize buffer protection on rear-end collision from the rear of a truck vehicle, avoid underride collision, reduce collision loss and ensure the life and property safety of road traffic participants.
In order to achieve the above object, the present invention adopts the following technical solutions:
the utility model provides a collision buffer protection device suitable for vehicle afterbody, includes the bumper, bursts energy-absorbing assembly and the air bag subassembly that contracts, the bumper is connected with the bottom of vehicle afterbody through two energy-absorbing assemblies that contract of bursting, the air bag subassembly sets up the bottom of two vehicle afterbody that contract between the energy-absorbing assembly that contract, the air bag bullet export of air bag subassembly is higher than the bumper and towards vehicle afterbody rear.
As a further optimization of the invention, the crumple energy absorption assembly is connected with the bottom of the vehicle tail through the rectangular box plate, so that the connection stability of the crumple energy absorption assembly and the vehicle tail is ensured; the tail end of the crumpling energy-absorbing component and the tail end of the rectangular box plate are also connected with the bottom of the tail of the vehicle through a right-angled trapezoid box plate; the mechanical strength of the connection between the crumple energy absorption assembly and the tail of the vehicle is improved.
As a further preference of the invention, a support plate is arranged between the two rectangular box plates, and the bottom of the airbag module is connected with the support plate; the top and the bottom of the safety airbag assembly are respectively connected with the tail part of the vehicle and the supporting plate, so that the connection stability of the safety airbag assembly is guaranteed, and the safety airbag assembly is prevented from shaking or falling off in the instant of starting the popup airbag.
As a further preferred aspect of the present invention, the crumple energy absorption assembly includes a crumple column and a crumple barrel, the front end of the crumple barrel has an opening, a cylindrical bushing is disposed on an inner circumferential surface of the opening at the front end of the crumple barrel, the rear end of the crumple column penetrates through the cylindrical bushing and is located inside the crumple barrel, a push plate is disposed at the rear end of the crumple column inside the crumple barrel, a plurality of crumple energy absorption bodies are sequentially arranged between the push plate and the inner side surface of the rear end of the crumple barrel, and the front end of the crumple column is connected to the bumper; the rear end of the crumple column is limited inside the crumple cylinder through the push plate, the crumple column is tightly matched with the cylindrical bushing, and the push plate is in clearance fit with the inner circumferential surface of the crumple cylinder.
As a further preferable aspect of the present invention, the collapse column is a hollow cylindrical tube body structure, the front end of the collapse column is a horn-shaped structure, and the opening at the front end of the collapse cylinder is a horn-shaped opening matched with the horn-shaped structure at the front end of the collapse column; when the displacement of the crumple column moving towards the inside of the crumple cylinder reaches a designed value, if the collision is not stopped, the horn-shaped structure at the front end of the crumple column extrudes the horn-shaped opening at the front end of the crumple cylinder, so that the horn-shaped opening at the front end of the crumple cylinder expands outwards and is torn and deformed, and the energy absorption effect is achieved, and the crumple column has a certain collision buffering effect.
As a further preferable aspect of the present invention, the crumple energy absorber is a hollow body structure composed of a cylindrical body and two truncated cone-shaped bodies, and the two truncated cone-shaped bodies are symmetrically arranged on two sides of the cylindrical body; when the crumpling energy-absorbing body is compressed and crumpled, the two circular truncated cone bodies move close to each other and are jointly accumulated and folded with the cylindrical body to deform, so that crumpling energy absorption is realized, the crumpling energy absorption effect is good, the crumpling energy-absorbing body cannot rebound or react after crumpling deformation, and the safety of a collision site is further ensured.
As a further preferable aspect of the present invention, a crumple groove is arranged on the outer circumferential surface of the cylindrical body, and the crumple groove surrounds the outer circumferential surface of the cylindrical body for a circle; the circular table-shaped body is provided with a plurality of arc-shaped collapse holes which are circumferentially arranged by taking the axis of the circular table-shaped body as the center of a circle; the crumpling groove and the arc-shaped crumpling hole can enable the crumpling energy absorber to be crumpled and deformed according to preset traces.
As a further preferred aspect of the present invention, three crumple energy absorbers are sequentially arranged between the push plate and the inner side surface of the rear end of the crumple cylinder, a plurality of arc-shaped crumple holes on each circular truncated cone of the crumple energy absorber in contact with the push plate are circumferentially arranged in three circles with the axis of the circular truncated cone as the center of circle, a plurality of arc-shaped crumple holes on each circular truncated cone of the center crumple energy absorber are circumferentially arranged in two circles with the axis of the circular truncated cone as the center of circle, and a plurality of arc-shaped crumple holes on each circular truncated cone of the crumple energy absorber in contact with the inner side surface of the rear end of the crumple cylinder are circumferentially arranged in one circle with the axis of the circular truncated cone as the center of circle; when the rear-end collision takes place, the post that contracts bursts promotes the push pedal and exerts pressure to the energy-absorbing body that contracts of bursting of the inside three of a section of thick bamboo that contracts, and the arc shrinkage cavity sets up the number of turns different on the round platform physique of every energy-absorbing body that contracts bursts, and the number of turns that the arc shrinkage cavity set up on the round platform physique is more, and the energy-absorbing body that contracts bursts is the deformation that contracts more easily to make three energy-absorbing body that contracts that bursts in proper order, improved the energy-absorbing effect that contracts that bursts of the energy-absorbing body that contracts, improve collision cushioning effect.
As a further preferable aspect of the present invention, the trigger sensor of the airbag module is disposed inside the middle crush absorber, and a hole through which a lead passes is provided on a side wall of the crush can; the lead of the trigger sensor is connected with the safety air bag component after passing through the arc-shaped collapsing hole on the cone and the hole on the side wall of the collapsing cylinder; when the rear-end collision happens, the crumpling column pushes the push plate to press the three crumpling energy-absorbing bodies, if the collision force is not large, the middle crumpling energy-absorbing body does not deform to trigger the triggering sensor, the safety air bag assembly does not act, and therefore maintenance loss after collision is reduced.
As a further preferable mode of the present invention, the periphery of the bumper is wrapped with a rubber layer; when slight rear-end collision occurs, the rubber layer can avoid hard contact between the bumper and the rear-end vehicle, and the loss of the rear-end vehicle is reduced; a cover plate is detachably clamped at an air bag ejection port of the air bag component; the vehicle is at the in-process of traveling, and the vehicle afterbody is because the air current effect easily upwards curls up dust, consequently, and the apron is used for daily protection gasbag bullet mouth, and when the gasbag popped out from gasbag bullet mouth, huge impact force can push the apron off.
The invention has the advantages that:
when a small car knocks behind the tail of the truck vehicle, a bumper at the tail of the truck vehicle is stressed firstly, the impact force of collision is transmitted to the crumpling column, the crumpling column pushes the push plate to apply pressure to the three crumpling energy absorbers inside the crumpling barrel, the three crumpling energy absorbers sequentially crumple and deform, and during the crumpling deformation process of the crumpling energy absorbers, the crumpling energy-absorbing effect and the collision buffering effect are achieved, so that the small car is prevented from entering the bottom of the tail of the vehicle; the safety airbag assembly is arranged at the bottom of the tail part of the vehicle between the two crumpling energy-absorbing assemblies, an airbag ejection opening of the safety airbag assembly is higher than the bumper and faces the rear part of the tail part of the vehicle, tail lamps are arranged at the tail parts of the vehicle at two sides of the airbag ejection opening, a trigger sensor of the safety airbag assembly is arranged in the middle of the crumpling energy-absorbing body in the crumpling cylinder, when the middle crumpling energy-absorbing body is stressed to deform so as to trigger the trigger sensor, the safety airbag assembly is started, the airbag is quickly ejected from the airbag ejection opening to buffer and support the top of the head of the small car and the position of a windshield, the impact force of the small car in rear-end collision is reduced, and the small car has a certain safety protection effect; thereby realize the buffer protection to the collision of knocking into the back that comes from the freight train rear, avoid taking place to bore the nature collision, reduce the collision loss, guarantee road traffic participant's life and property safety.
Drawings
FIG. 1 is a schematic front view of the present invention as installed on the rear of a vehicle;
FIG. 2 is a side elevational schematic view of the present invention as installed in the rear of a vehicle;
FIG. 3 is a schematic top view of the present invention;
FIG. 4 is a schematic view of the cross-sectional structure taken along the line A in FIG. 3;
FIG. 5 is a schematic cross-sectional view of a crush energy absorber assembly of the present invention;
FIG. 6 is a schematic perspective view of a crash energy absorber of the present invention;
the meaning of the reference symbols in the figures:
1-bumper, 2-airbag module, 3-vehicle tail, 4-airbag ejection port, 5-rectangular box plate, 6-right trapezoid box plate, 7-support plate, 8-collapse column, 9-collapse cylinder, 10-cylindrical bushing, 11-push plate, 12-collapse energy absorber, 13-cylindrical body, 14-circular truncated cone body, 15-collapse groove, 16-arc collapse hole, 17-trigger sensor, 18-hole, 19-rubber layer and 20-vehicle tail lamp.
Detailed Description
The invention is described in detail below with reference to the figures and the embodiments.
As shown in fig. 1 to 6, the present embodiment is a collision buffer protection device suitable for a vehicle tail, and includes a bumper 1, a crumple energy-absorbing assembly, and an airbag module 2, where the bumper 1 is connected to the bottom of the vehicle tail 3 through two crumple energy-absorbing assemblies, the airbag module 2 is disposed at the bottom of the vehicle tail 3 between the two crumple energy-absorbing assemblies, and an airbag ejection opening 4 of the airbag module 2 is higher than the bumper 1 and faces the rear of the vehicle tail 3.
In the embodiment, the crumple energy absorption assembly is connected with the bottom of the vehicle tail 3 through the rectangular box plate 5, so that the connection stability of the crumple energy absorption assembly and the vehicle tail 3 is ensured; the tail end of the crumpling energy-absorbing component and the tail end of the rectangular box plate 5 are also connected with the bottom of the vehicle tail 3 through a right-angled trapezoid box plate 6; the mechanical strength of the connection between the crumple energy absorption assembly and the vehicle tail 3 is improved; the rectangular box plate 5 and the right-angle trapezoidal box plate 6 are both hollow box structures.
In the embodiment, a supporting plate 7 is arranged between two rectangular box plates 5, and the bottom of the airbag module 2 is connected with the supporting plate 7; the top and the bottom of the air bag module 2 are respectively connected with the tail part 3 and the supporting plate 7 of the vehicle, so that the connection stability of the air bag module 2 is ensured, and the phenomenon that the air bag module 2 shakes or falls off in the instant of starting the air bag ejection is avoided.
In the embodiment, the crumpling energy-absorbing component comprises a crumpling column 8 and a crumpling barrel 9, wherein the front end of the crumpling barrel 9 is provided with an opening, a cylindrical bushing 10 is arranged on the inner circumferential surface of the opening at the front end of the crumpling barrel 9, the rear end of the crumpling column 8 penetrates through the cylindrical bushing 10 and is positioned inside the crumpling barrel 9, a push plate 11 is arranged at the rear end of the crumpling column 8 inside the crumpling barrel 9, a plurality of crumpling energy-absorbing bodies 12 are sequentially arranged between the push plate 11 and the inner side surface of the rear end of the crumpling barrel 9, and the front end of the crumpling column 8 is connected with the bumper 1; the rear end of the collapse column 8 is limited in the collapse cylinder 9 through a push plate 11, the collapse column 8 is tightly matched with the cylindrical bushing 10, and the push plate 11 is in clearance fit with the inner circumferential surface of the collapse cylinder 9; the crumple cans 9 are connected with the rectangular box plate 5 and the right-angled trapezoid box plate 6.
In this embodiment, the collapse column 8 is a hollow cylindrical tube structure, the front end of the collapse column 8 is a horn-shaped structure, and the opening at the front end of the collapse cylinder 9 is a horn-shaped opening matched with the horn-shaped structure at the front end of the collapse column 8; when the displacement of the crumple column 8 moving towards the inside of the crumple cylinder 9 reaches the designed value, if the collision is not stopped, the trumpet-shaped structure at the front end of the crumple column 8 extrudes the trumpet-shaped opening at the front end of the crumple cylinder 9, so that the trumpet-shaped opening at the front end of the crumple cylinder 9 expands outwards, tears and deforms, thereby achieving the energy absorption effect and having a certain collision buffer effect.
In this embodiment, the crumple energy absorber 12 is a hollow body structure composed of a cylindrical body 13 and two circular truncated cone bodies 14, and the two circular truncated cone bodies 14 are symmetrically arranged on two sides of the cylindrical body 13; when the crumple energy-absorbing body 12 is compressed and crumpled, the two circular truncated cone bodies 14 move close to each other and are accumulated and folded together with the cylindrical body 13 to deform, so that crumple energy absorption is realized, the crumple energy-absorbing effect is good, rebound and reaction force cannot occur after the crumple energy-absorbing body 12 deforms after crumple, and the safety of a collision site is further ensured.
In this embodiment, a collapsing groove 15 is provided on the outer circumferential surface of the cylindrical body 13, and the collapsing groove 15 surrounds the outer circumferential surface of the cylindrical body 13 for a circle; the circular truncated cone 14 is provided with a plurality of arc-shaped collapse holes 16, and the arc-shaped collapse holes 16 are circumferentially arranged by taking the axis of the circular truncated cone 14 as the center of a circle; the collapse groove 15 and the arc-shaped collapse holes 16 can enable the collapse energy absorber 12 to be collapsed and deformed according to preset traces.
In the embodiment, three crumple energy-absorbing bodies 12 are sequentially arranged between a push plate 11 and the inner side face of the rear end of the crumple cylinder 9, a plurality of arc-shaped crumple holes 16 on each circular table-shaped body 14 of the crumple energy-absorbing body 12 in contact with the push plate 11 are circumferentially arranged in three circles with the axis of the circular table-shaped body 14 as the center of a circle, a plurality of arc-shaped crumple holes 16 on each circular table-shaped body 14 of the crumple energy-absorbing body 12 in the middle are circumferentially arranged in two circles with the axis of the circular table-shaped body 14 as the center of a circle, and a plurality of arc-shaped crumple holes 16 on each circular table-shaped body 14 of the crumple energy-absorbing body 12 in contact with the inner side face of the rear end of the crumple cylinder 9 are circumferentially arranged in one circle with the axis of the circular table-shaped body 14 as the center of a circle; when a rear-end collision happens, the collapsing column 8 pushes the push plate 11 to apply pressure to the three collapsing energy absorbers 12 inside the collapsing cylinder 9, the arc collapsing holes 16 on the circular table-shaped body 14 of each collapsing energy absorber 12 are different in the number of circles, the more the number of circles set on the arc collapsing holes 16 on the circular table-shaped body 14 are, the more the collapsing energy absorbers 12 are prone to collapsing and deforming, so that the three collapsing energy absorbers 12 can sequentially collapse and deform, in the collapsing and deforming process of the collapsing energy absorbers 12, the collapsing and energy-absorbing effects of the three collapsing energy absorbers 12 are improved, and the collision buffering effect is improved.
In the embodiment, the trigger sensor 17 of the airbag module 2 is arranged in the middle of the crumple energy absorber 12, and a hole 18 for a lead to pass through is arranged on the side wall of the crumple barrel 9; the lead of the trigger sensor 17 is connected with the airbag module 2 after passing through an arc-shaped collapse hole 16 on the cone 14 and a hole 18 on the side wall of the collapse cylinder 9; when a rear-end collision happens, the collapse column 8 pushes the push plate 11 to press the three collapse energy absorbers 12, if the collision force is not large, the middle collapse energy absorber 12 is not collapsed and deformed to trigger the trigger sensor 17, the safety airbag assembly 2 does not act, and therefore maintenance loss after collision is reduced.
In the embodiment, the periphery of the bumper 1 is wrapped with a rubber layer 19; when slight rear-end collision occurs, the rubber layer 19 can avoid the hard contact between the bumper 1 and a rear-end vehicle, so that the loss of the rear-end vehicle is reduced; a cover plate is detachably clamped at an air bag ejection port 4 of the air bag component 2; the vehicle is at the in-process of traveling, and vehicle afterbody 3 is because the air current effect easily upwards curls up dust, consequently, and the apron is used for daily protection gasbag ejection opening 4, and when the gasbag popped out from gasbag ejection opening 4 department, huge impact force can be fallen the apron top.
The working process of the embodiment is as follows:
when a small car tailgates the truck tail 3, the bumper 1 of the truck tail 3 is stressed firstly, the impact force of collision is transmitted to the crumpling column 8, the crumpling column 8 pushes the push plate 11 to apply pressure to the three crumpling energy absorbers 12 in the crumpling barrel 9, the three crumpling energy absorbers 12 are sequentially crumpled and deformed, and in the crumpling and deformation process of the crumpling energy absorbers 12, the crumpling and energy absorption effect and the collision buffering effect are achieved, so that the small car is prevented from entering the bottom of the truck tail 3; the safety airbag assembly 2 is arranged at the bottom of a vehicle tail part 3 between two crumpling energy-absorbing assemblies, an airbag ejection opening 4 of the safety airbag assembly 2 is higher than a bumper 1 and faces the rear of the vehicle tail part 3, tail lamps 20 are arranged at the vehicle tail parts 3 on two sides of the airbag ejection opening 4, a trigger sensor 17 of the safety airbag assembly 2 is arranged in a crumpling energy-absorbing body 12 in the middle of a crumpling barrel 9, when the crumpling energy-absorbing body 12 in the middle is stressed to deform and trigger the trigger sensor 17, the safety airbag assembly 2 is started, an airbag is quickly ejected from the airbag ejection opening 4 to buffer and support the top of a head of a small car and the position of a windshield, the impact force of the small car during rear-end collision is reduced, and a certain safety protection effect is achieved on the small car; thereby realize the buffer protection to the collision of knocking into the back that comes from the freight train rear, avoid taking place to bore the nature collision, reduce the collision loss, guarantee road traffic participant's life and property safety.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can be, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed; can be mechanically or electrically connected; the two elements can be directly connected, indirectly connected through an intermediate medium, or communicated with each other inside; the specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The foregoing shows and describes the general principles, principal features and advantages of the invention; it should be understood by those skilled in the art that the above embodiments do not limit the present invention in any way, and all technical solutions obtained by using equivalents or equivalent changes fall within the protection scope of the present invention.
Claims (5)
1. A collision buffering protection device suitable for a vehicle tail is characterized by comprising a bumper, a crumple energy-absorbing assembly and an airbag assembly, wherein the bumper is connected with the bottom of the vehicle tail through the two crumple energy-absorbing assemblies;
the energy absorption assembly comprises a crumpling column and a crumpling barrel, wherein an opening is formed in the front end of the crumpling barrel, a cylindrical bushing is arranged on the inner circumferential surface of the opening in the front end of the crumpling barrel, the rear end of the crumpling column penetrates through the cylindrical bushing and is positioned in the crumpling barrel, a push plate is arranged at the rear end of the crumpling column in the crumpling barrel, a plurality of crumpling energy absorbers are sequentially arranged between the push plate and the inner side surface of the rear end of the crumpling barrel, and the front end of the crumpling column is connected with a bumper;
the crumple energy absorber is a hollow body structure consisting of a cylindrical body and two truncated cone-shaped bodies, and the two truncated cone-shaped bodies are symmetrically arranged on two sides of the cylindrical body; the outer circumferential surface of the cylindrical body is provided with a crumple groove, and the crumple groove surrounds the outer circumferential surface of the cylindrical body for a circle; the circular truncated cone is provided with a plurality of arc-shaped collapse holes which are circumferentially arranged by taking the axis of the circular truncated cone as the center of a circle;
the three crumple energy absorbers are sequentially arranged between the push plate and the inner side face of the rear end of the crumple cylinder, a plurality of arc crumple holes in each circular table body of the crumple energy absorber in contact with the push plate are circumferentially arranged in three circles by taking the axis of the circular table body as the center of a circle, a plurality of arc crumple holes in each circular table body of the crumple energy absorber in the middle are circumferentially arranged in two circles by taking the axis of the circular table body as the center of a circle, and a plurality of arc crumple holes in each circular table body of the crumple energy absorber in contact with the inner side face of the rear end of the crumple cylinder are circumferentially arranged in one circle by taking the axis of the circular table body as the center of a circle;
the triggering sensor of the safety air bag assembly is arranged in the middle of the crumple energy absorption body, and a hole for a lead to pass through is formed in the side wall of the crumple barrel.
2. The collision buffer protection device suitable for the vehicle tail part of claim 1, wherein the crumple energy-absorbing component is connected with the bottom of the vehicle tail part through a rectangular box plate, and the tail end of the crumple energy-absorbing component and the tail end of the rectangular box plate are further connected with the bottom of the vehicle tail part through a right-angled trapezoid box plate.
3. The crash cushion protection device adapted to a vehicle rear portion as claimed in claim 2, wherein a support plate is provided between the two rectangular box plates, and a bottom portion of the airbag module is connected to the support plate.
4. The crash cushion protection device adapted for use at the rear of a vehicle as claimed in claim 1, wherein said crush column is a hollow cylindrical tube structure, the front end of said crush column is a horn structure, and the opening at the front end of said crush can is a horn opening which is fitted to the horn structure at the front end of said crush column.
5. The crash cushion protection device adapted for a vehicle rear portion as claimed in claim 1, wherein said bumper is peripherally covered with a rubber layer; the separable joint in gasbag bullet export department of air bag subassembly has the apron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110784328.7A CN113386696B (en) | 2021-07-12 | 2021-07-12 | Collision buffer protection device suitable for vehicle afterbody |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110784328.7A CN113386696B (en) | 2021-07-12 | 2021-07-12 | Collision buffer protection device suitable for vehicle afterbody |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113386696A CN113386696A (en) | 2021-09-14 |
| CN113386696B true CN113386696B (en) | 2023-02-28 |
Family
ID=77625837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110784328.7A Active CN113386696B (en) | 2021-07-12 | 2021-07-12 | Collision buffer protection device suitable for vehicle afterbody |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113386696B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115158211B (en) * | 2022-08-12 | 2024-03-08 | 北京京深深向科技有限公司 | Rear-end collision prevention control method and device, electronic equipment and storage medium |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0591718A1 (en) * | 1992-10-09 | 1994-04-13 | MAN Nutzfahrzeuge Aktiengesellschaft | Commercial vehicle, especially a cab over lorry engine with all-round crumple zone |
| CN103909888A (en) * | 2014-03-31 | 2014-07-09 | 长城汽车股份有限公司 | Automobile crash box |
| CN104760554A (en) * | 2015-04-16 | 2015-07-08 | 南京理工大学 | Automotive insertion sheet filling type foamed aluminum energy absorption box |
| CN107600014A (en) * | 2017-10-12 | 2018-01-19 | 贾恒宏 | A kind of back buffer beam assembly for van |
-
2021
- 2021-07-12 CN CN202110784328.7A patent/CN113386696B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0591718A1 (en) * | 1992-10-09 | 1994-04-13 | MAN Nutzfahrzeuge Aktiengesellschaft | Commercial vehicle, especially a cab over lorry engine with all-round crumple zone |
| CN103909888A (en) * | 2014-03-31 | 2014-07-09 | 长城汽车股份有限公司 | Automobile crash box |
| CN104760554A (en) * | 2015-04-16 | 2015-07-08 | 南京理工大学 | Automotive insertion sheet filling type foamed aluminum energy absorption box |
| CN107600014A (en) * | 2017-10-12 | 2018-01-19 | 贾恒宏 | A kind of back buffer beam assembly for van |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113386696A (en) | 2021-09-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113386696B (en) | Collision buffer protection device suitable for vehicle afterbody | |
| EP2396214B1 (en) | Vehicle body, more particularly land vehicle body | |
| CN204845815U (en) | Aluminum alloy anticollision beam assembly | |
| CN101932487A (en) | Constitute the car head unit that comprises at least one energy-absorbing member in vehicle front | |
| CN104973002B (en) | Vehicle-mounted telescopic liquid-solid coupling four-stage collision energy absorption device | |
| CN201437374U (en) | Automobile frame | |
| CN201343009Y (en) | Vehicle pedestrian protecting device | |
| CN212332574U (en) | Automobile collision buffer device | |
| CN206654015U (en) | Front anticollision beam of automobile assembly with hitch structure | |
| CN113715763A (en) | Vehicular anticollision buffer | |
| CN210652995U (en) | Energy absorption box for electric vehicle | |
| CN112874459A (en) | Energy absorption box structure and using method thereof | |
| CN215621840U (en) | High-efficiency energy-absorbing type automobile bumper | |
| CN110154958A (en) | A kind of removable front anticollision beam of automobile assembly | |
| CN111231874A (en) | Front anti-collision beam assembly applied to car | |
| CN110936930B (en) | Automobile collision emergency locking brake device | |
| CN111055875B (en) | Gas buffering type train impact energy dissipation device | |
| CN211809470U (en) | Anti-collision automobile front bumper | |
| CN202806642U (en) | Aluminum rear anti-collision beam assembly | |
| CN208867987U (en) | A kind of light-weighted aluminium alloy collision prevention girders | |
| CN2438621Y (en) | Vehicle guard for damping bouncing force in collisions | |
| CN221251046U (en) | Anti-collision beam assembly before aluminum alloy | |
| CN211943208U (en) | Buffer type front lower protection device for truck | |
| CN208134272U (en) | A kind of bumper | |
| CN214523675U (en) | Collision safety buffer mechanism for passenger car |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |