CN215621556U - Seat energy-absorbing assembly and seat - Google Patents
Seat energy-absorbing assembly and seat Download PDFInfo
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- CN215621556U CN215621556U CN202121283735.1U CN202121283735U CN215621556U CN 215621556 U CN215621556 U CN 215621556U CN 202121283735 U CN202121283735 U CN 202121283735U CN 215621556 U CN215621556 U CN 215621556U
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Abstract
The utility model relates to the technical field of automobiles, in particular to a seat energy-absorbing assembly and a seat, wherein the seat energy-absorbing assembly comprises an angle adjuster lower connecting plate, an energy-absorbing sheet and a step bolt; the lower connecting plate of the angle adjuster is provided with an energy absorption groove which comprises a round groove part and a straight groove part which are communicated with each other; the energy absorption sheet comprises a fixed part, a positioning part and a fracture part connected between the fixed part and the positioning part; the positioning part is provided with a first mounting hole; the step bolt sequentially penetrates through the circular groove part and the first mounting hole and is fixedly connected with the energy absorption sheet; the energy absorption sheet is of an hourglass structure with two large ends and a small middle part, so that the broken part is broken under the action of external force, the step bolt moves towards the straight groove part, and the straight groove part deforms to absorb energy; according to the utility model, the lower connecting plate of the angle adjuster is matched with the energy absorption sheet for use, and the energy absorption sheet is in the hourglass structure, so that the fracture part can be accurately fractured when collision occurs, impact energy generated by rear-end collision is absorbed through deformation of the energy absorption groove, and the damage to the neck is reduced.
Description
Technical Field
The utility model relates to the technical field of automobiles, in particular to a seat energy absorption assembly and a seat.
Background
In the case of a traffic accident of automobile and road, if two vehicles collide with each other, whiplash injury may be caused to the neck of the passenger in the collided vehicle. If the vehicle is collided by rear-end collision, the vehicle which is suddenly accelerated drives the body of the passenger to be instantly accelerated forwards through the backrest of the seat, and the head and neck of the passenger which is in a free state keep the original static state due to the inertia effect, so that the body is suddenly accelerated and changed relative to the head and neck in the horizontal direction, and the cervical vertebra can be injured. Whiplash injury has two phases: neck hyperextension and neck flexion. Neck hyperextension: cervical spine breakage due to excessive backward extension of the neck may occur; the reason for this is that the front vehicle is accelerated forward by the collision of the rear vehicle, the passenger in front accelerates forward with the seat back under the neck, and the head in a suspended state is delayed relative to the neck by inertia, and this delay continues until the neck is stretched to the limit. Neck flexion: the head is driven by the neck to throw forward like a whip, and the neck is bent forward seriously to be strained; the reason for this is that when the neck portion is restored from overextension to the normal state, the back of the occupant is still in a forward acceleration state, energy is transmitted upward through the neck portion to drive the head portion to throw forward, and the weak neck portion may be injured incurably.
The cervical vertebra injury caused by vehicle rear-end collision or frontal collision is not only high in incidence rate, but also causes serious sequelae due to the special parts of the cervical vertebra injury. To prevent the injury of this kind of accident, prior art has multiple initiative safety precaution or passive safety precaution, and what these measures provided is the structure that can absorb the impact energy only mostly, and the collision energy that knocks into the back through the precision structure buffering of seat when just being knocked into the back to current WHIPS system, the vehicle reduces the difference of the acceleration of front passenger's head and neck, reduces the injury. The technical solutions have the disadvantages of making the seat structure complex and much more costly; in addition, in an extremely short moment, the impact energy is not enough to be absorbed by only relying on the absorption of the impact energy, because the absorption of the impact energy always needs an accumulated process which is often too draggy, so that the mechanism effect cannot be fully satisfactory.
Based on the disadvantages of the prior art, there is a need to develop a seat energy absorption assembly and a seat to solve the above problems.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problems, the utility model provides a seat energy absorption assembly and a seat, wherein the seat energy absorption assembly is provided with an angle adjuster lower connecting plate which is matched with an energy absorption sheet for use, and the energy absorption sheet is of an hourglass structure, so that the fracture part of the energy absorption sheet can be accurately fractured when collision occurs, impact energy generated by rear-end collision is absorbed through deformation of an energy absorption groove, the damage to the neck is relieved, and the safety of passengers is further protected.
The utility model discloses a seat energy absorption assembly, which comprises an angle adjuster lower connecting plate, an energy absorption sheet and a step bolt, wherein the angle adjuster lower connecting plate is fixedly connected with the seat energy absorption assembly;
the lower connecting plate of the angle adjuster is provided with an energy absorption groove, and the energy absorption groove comprises a round groove part and a straight groove part which are mutually communicated;
the energy absorption sheet comprises a fixed part, a positioning part and a fracture part connected between the fixed part and the positioning part; the fixed part is used for being fixedly connected with the lower connecting plate of the angle adjuster; the positioning part is provided with a first mounting hole;
the step bolt sequentially penetrates through the circular groove part and the first mounting hole and is fixedly connected with the energy absorption sheet;
the energy-absorbing piece is of a hourglass structure with two large ends and a small middle part, the width of the fracture part is smaller than the diameter of the first mounting hole, so that the fracture part fractures under the action of external force, the step bolt moves towards the straight groove part, and the straight groove part deforms to absorb energy.
Further, the length of the straight groove part is larger than the diameter of the circular groove part, and the width of the straight groove part is smaller than the diameter of the circular groove part.
Further, the diameter of the step bolt is larger than the width of the straight groove part, and the diameter of the step bolt is smaller than the diameter of the round groove part.
Furthermore, a second mounting hole and a third mounting hole are formed in the lower connecting plate of the angle adjuster;
a bolt is arranged in the second mounting hole, and the lower angle adjuster connecting plate is connected with a cushion side plate of the vehicle through the bolt;
and a connecting piece is arranged in the third mounting hole, and the lower angle adjuster connecting plate is used for being connected with a seat backrest of a vehicle through the connecting piece.
Furthermore, the second mounting hole, the third mounting hole and the energy absorption groove are arranged on the lower connecting plate of the angle adjuster at intervals;
the connecting line of the centers of the second mounting hole, the third mounting hole and the energy absorption groove forms a triangle.
The step bolt sequentially penetrates through the circular groove part and the first mounting hole and is in threaded connection with the first nut, so that the lower connecting plate of the angle adjuster is in compression fit with the energy absorbing piece.
Furthermore, the fixing part is used for being welded and fixed with the lower connecting plate of the angle adjuster.
Further, the width of the straight groove portion gradually decreases along the length direction of the straight groove portion, and the maximum width of the straight groove portion is smaller than the diameter of the circular groove portion.
Furthermore, the length direction of the energy absorption groove is consistent with the arc direction taking the bolt as the center of a circle and the radius of a connecting line from the step bolt to the center of the bolt.
Another aspect of the utility model protects a seat comprising a seat back of a vehicle and a seat energy absorber assembly as described above;
the seat energy absorption assemblies are symmetrically arranged at two ends of a seat back of the vehicle.
The embodiment of the utility model has the following beneficial effects:
according to the utility model, the lower connecting plate of the angle adjuster is matched with the energy-absorbing sheet for use, and the energy-absorbing sheet is arranged in the hourglass structure, so that the broken part of the energy-absorbing sheet can be accurately broken when collision occurs, impact energy generated by rear-end collision is absorbed through deformation of the energy-absorbing groove, the damage to the neck is reduced, and the safety of passengers is further protected.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description of the embodiment or the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the utility model, and that for a person skilled in the art it is also possible to derive other drawings from these drawings without inventive effort.
FIG. 1 is a view showing a structure of a seat according to the embodiment;
FIG. 2 is a structural diagram of the lower connecting plate of the angle adjuster according to the present embodiment after being connected to an energy absorbing sheet;
FIG. 3 is a structural view of the energy absorbing sheet of this embodiment after breakage;
FIG. 4 is a structural diagram of the energy absorption groove of the present embodiment after deformation;
FIG. 5 is a structural view of the energy absorbing sheet according to this embodiment.
Wherein the reference numerals in the figures correspond to:
1-lower connecting plate of angle adjuster; 2-an energy absorbing sheet; 3-step bolts; 4-a cushion side plate of the vehicle; 5-a seat back of a vehicle; 11-an energy absorption groove; 12-a second mounting hole; 13-a third mounting hole; 14-a bolt; 15-a connector; 21-a fixed part; 22-a positioning section; 23-a fracture; 111-round slot part; 112-straight flute portion; 221-first mounting hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the utility model described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The prior art has the following defects: the cervical vertebra injury caused by vehicle rear-end collision or frontal collision is not only high in incidence rate, but also causes serious sequelae due to the special parts of the cervical vertebra injury. To prevent the injury of this kind of accident, prior art has multiple initiative safety precaution or passive safety precaution, and what these measures provided is the structure that can absorb the impact energy only mostly, and the collision energy that knocks into the back through the precision structure buffering of seat when just being knocked into the back to current WHIPS system, the vehicle reduces the difference of the acceleration of front passenger's head and neck, reduces the injury. The technical solutions have the disadvantages of making the seat structure complex and much more costly; in addition, in an extremely short moment, the impact energy is not enough to be absorbed by only relying on the absorption of the impact energy, because the absorption of the impact energy always needs an accumulated process which is often too draggy, so that the mechanism effect cannot be fully satisfactory.
Aiming at the defects of the prior art, the lower connecting plate of the angle adjuster is matched with the energy absorption sheet for use, and the energy absorption sheet is arranged in the hourglass structure, so that the broken part of the energy absorption sheet can be accurately broken when collision occurs, impact energy generated by rear-end collision is absorbed through deformation of the energy absorption groove, the damage to the neck is relieved, and the safety of passengers is protected.
Example 1
Referring to the attached drawings 1-5, the embodiment provides a seat energy absorption assembly, which comprises an angle adjuster lower connecting plate 1, an energy absorption sheet 2 and a step bolt 3;
an energy absorption groove 11 is formed in the lower connecting plate 1 of the angle adjuster, and the energy absorption groove 11 comprises a round groove part 111 and a straight groove part 112 which are communicated with each other;
the energy absorbing sheet 2 comprises a fixing part 21, a positioning part 22 and a fracture part 23 connected between the fixing part 21 and the positioning part 22; the fixing part 21 is used for being fixedly connected with the lower connecting plate 1 of the angle adjuster; a first mounting hole 221 is formed in the positioning part 22;
the step bolt 3 sequentially penetrates through the circular groove part 111 and the first mounting hole 221, and the step bolt 3 is fixedly connected with the energy-absorbing sheet 2;
the energy absorption sheet 2 is of an hourglass structure with two large ends and a small middle, and the width of the fracture part 23 is smaller than the diameter of the first mounting hole 221, so that the fracture part 23 fractures under the action of external force, the stepped bolt 3 moves towards the straight groove part 112, and the straight groove part 112 deforms to absorb energy.
It should be noted that: in the embodiment, the lower angle adjuster connecting plate 1 is matched with the energy absorbing sheet 2 for use, and the energy absorbing sheet 2 is arranged to be of the hourglass structure, so that the fracture part 23 of the energy absorbing sheet 2 can be accurately fractured when collision occurs, impact energy generated by rear-end collision is absorbed through deformation of the energy absorbing groove 11, the damage to the neck is relieved, and the safety of passengers is protected.
It should also be noted that: the utility model can accurately start the energy absorption protection mechanism, and has low cost, simple structure of the energy absorption sheet 2 and simple processing; the normal use of the seat by passengers is not influenced, and the energy-absorbing protection mechanism can be started under a specific force value.
Preferably, the length of the straight groove portion 112 is greater than the diameter of the circular groove portion 111, and the width of the straight groove portion 112 is smaller than the diameter of the circular groove portion 111.
In some possible embodiments, the straight groove portion 112 is a rectangular structure, the width of the straight groove portion 112 is equal everywhere, and the width of the straight groove portion 112 is smaller than the diameter of the circular groove portion 111.
In other possible embodiments, the width of the straight groove portion 112 gradually decreases along the length direction of the straight groove portion 112, and the maximum width of the straight groove portion 112 is smaller than the diameter of the circular groove portion 111.
Specifically, the width of the end of the straight groove portion 112 connected to the circular groove portion 111 is the maximum width.
In other possible embodiments, the shape of the straight groove portion 112 is any shape as long as it is ensured that when the lower recliner connecting plate 1 rotates around the bolt 14 in a vehicle collision, the straight groove portion 112 deforms under the action of the step bolt 3 to absorb energy, and the impact of the neck of the occupant is relieved.
Preferably, the diameter of the step bolt 3 is larger than the width of the straight groove portion 112, and the diameter of the step bolt 3 is smaller than the diameter of the circular groove portion 111.
In some possible embodiments, the diameter of the circular groove 111 is equal to the diameter of the step bolt 3.
Preferably, a second mounting hole 12 and a third mounting hole 13 are further formed in the lower connecting plate 1 of the angle adjuster;
a bolt 14 is arranged in the second mounting hole 12, and the lower angle adjuster connecting plate 1 is used for being connected with a cushion side plate 4 of a vehicle through the bolt 14;
a connecting piece 15 is arranged in the third mounting hole 13, and the lower angle adjuster connecting plate 1 is used for being connected with a seat back 5 of a vehicle through the connecting piece 15.
In some possible embodiments, when a rear-end collision occurs to the vehicle, due to an external force, the lower connecting plate 1 of the recliner can rotate around the axis of the bolt 14, so that the fracture part 23 is fractured, and when the step bolt 3 moves in the energy-absorbing groove 11, the straight groove part 112 of the energy-absorbing groove 11 deforms to absorb energy, so that the injury to the neck is reduced, and the safety of the passenger is further protected.
It should be noted that: when a rear-end collision accident occurs to the vehicle, the fracture part 23 of the energy absorption sheet 2 fractures, the regulator lower connecting plate rotates backwards around the axis of the bolt 14, the seat back 5 of the vehicle synchronously rotates backwards, and the process can relieve the neck hyperextension of passengers;
when the seat back 5 of the vehicle rotates backwards for a certain angle, the energy-absorbing groove 11 and the step bolt 3 are extruded, the energy-absorbing groove 11 is extruded and deformed until the deformation of the energy-absorbing groove 11 absorbs the rear-end impact, and the buckling of the neck of the passenger can be relieved in the process.
Preferably, the second mounting hole 12, the third mounting hole 13 and the energy absorption groove 11 are arranged on the lower angle adjuster connecting plate 1 at intervals;
the connecting line of the centers of the second mounting holes 12, the third mounting holes 13 and the energy absorption groove 11 forms a triangle.
Preferably, the seat recliner further comprises a first nut, and the step bolt 3 sequentially penetrates through the circular groove part 111 and the first mounting hole 221 and is in threaded connection with the first nut, so that the lower angle recliner connecting plate 1 is in press fit with the energy absorbing sheet 2.
In some possible embodiments, the area of the fixing portion 21 is smaller than that of the positioning portion 22, so as to ensure that the breaking portion 23 can break in time.
In some possible embodiments, the lower connecting plate 1 of the angle adjuster is of a flat plate structure, which can prevent the processing technology of the energy absorption sheet from influencing the size precision of a fracture zone, and ensure timely and effective opening of energy absorption protection.
Preferably, the fixing portion 21 is used for being welded and fixed with the lower angle adjuster connecting plate 1.
Preferably, the length direction of the energy absorption groove 11 is consistent with the arc direction taking the bolt 14 as the center of a circle and the connecting line from the step bolt 3 to the center of the bolt 14 as the radius.
The working process of the seat energy absorption assembly is as follows: when a rear-end collision accident occurs to the vehicle, the lower angle adjuster connecting plate 1 rotates around the axis of the bolt 14; the fracture part 23 fractures, the fracture part 23 is separated from the positioning part 22, so that the step bolt 3 fixedly connected with the positioning part 22 can move along the energy-absorbing groove 11, and the energy-absorbing groove 11 deforms to absorb energy.
The utility model protects a seat in another aspect, comprising a seat back 5 of a vehicle and a seat energy absorber assembly as described above;
the seat energy absorption assemblies are symmetrically arranged at two ends of a seat back 5 of the vehicle.
The seat with the seat energy absorption assembly in the city of four Ping is matched with the energy absorption sheet 2 for use by arranging the lower angle adjuster connecting plate 1, and the energy absorption sheet 2 is arranged to be of an hourglass structure, so that the fracture part 23 of the energy absorption sheet 2 can be accurately fractured when collision occurs, impact energy generated by rear-end collision is absorbed through deformation of the energy absorption grooves 11, the damage to the neck is relieved, and the safety of passengers is protected.
Although the present invention has been described by way of preferred embodiments, the present invention is not limited to the embodiments described herein, and various changes and modifications may be made without departing from the scope of the present invention.
In this document, the terms front, back, upper and lower are used to define the components in the drawings and the positions of the components relative to each other, and are used for clarity and convenience of the technical solution. It is to be understood that the use of the directional terms should not be taken to limit the scope of the claims.
The embodiments and features of the embodiments described herein above can be combined with each other without conflict.
While the utility model has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the utility model is not to be limited to the disclosed embodiment, but on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.
Claims (10)
1. A seat energy absorption assembly is characterized by comprising an angle adjuster lower connecting plate (1), an energy absorption sheet (2) and a step bolt (3);
an energy absorption groove (11) is formed in the lower connecting plate (1) of the angle adjuster, and the energy absorption groove (11) comprises a round groove part (111) and a straight groove part (112) which are communicated with each other;
the energy absorption sheet (2) comprises a fixing part (21), a positioning part (22) and a fracture part (23) connected between the fixing part (21) and the positioning part (22); the fixing part (21) is used for being fixedly connected with the lower angle adjuster connecting plate (1); a first mounting hole (221) is formed in the positioning part (22);
the step bolt (3) sequentially penetrates through the circular groove part (111) and the first mounting hole (221), and the step bolt (3) is fixedly connected with the energy absorbing sheet (2);
energy-absorbing piece (2) are the big hourglass structure of centre in middle of both ends, just the width of fracture portion (23) is less than the diameter of first mounting hole (221), so that fracture portion (23) break under the exogenic action, step bolt (3) orientation straight slot portion (112) remove, straight slot portion (112) deformation energy-absorbing.
2. Seat energy absorber assembly according to claim 1, characterized in that the length of the straight groove portion (112) is greater than the diameter of the circular groove portion (111) and the width of the straight groove portion (112) is smaller than the diameter of the circular groove portion (111).
3. A seat energy absorber assembly according to claim 2, characterized in that the diameter of the step bolt (3) is larger than the width of the straight slot portion (112) and the diameter of the step bolt (3) is smaller than the diameter of the round slot portion (111).
4. The seat energy absorption assembly according to claim 3, wherein the lower angle adjuster connecting plate (1) is further provided with a second mounting hole (12) and a third mounting hole (13);
a bolt (14) is arranged in the second mounting hole (12), and the lower angle adjuster connecting plate (1) is connected with a cushion side plate (4) of a vehicle through the bolt (14);
and a connecting piece (15) is arranged in the third mounting hole (13), and the lower angle adjuster connecting plate (1) is connected with a seat backrest (5) of a vehicle through the connecting piece (15).
5. A seat energy absorption assembly according to claim 4, characterized in that the second mounting hole (12), the third mounting hole (13) and the energy absorption groove (11) are arranged at intervals on the lower angle adjuster connecting plate (1);
the connecting line of the centers of the second mounting hole (12), the third mounting hole (13) and the energy absorption groove (11) forms a triangle.
6. A seat energy-absorbing assembly according to claim 5, characterized in that the seat energy-absorbing assembly further comprises a first nut, and the step bolt (3) sequentially penetrates through the circular groove portion (111) and the first mounting hole (221) and is in threaded connection with the first nut, so that the lower angle adjuster connecting plate (1) and the energy-absorbing piece (2) are in press fit.
7. A seat energy absorber assembly according to claim 6, characterized in that the fastening portion (21) is adapted to be welded to the lower gusset plate (1).
8. A seat energy absorber assembly according to claim 1, wherein the width of the straight slot portion (112) decreases along the length of the straight slot portion (112), and the maximum width of the straight slot portion (112) is smaller than the diameter of the circular slot portion (111).
9. The seat energy absorption assembly according to claim 1, wherein the length direction of the energy absorption groove (11) is consistent with the direction of an arc with a bolt (14) as a center and a radius from a connecting line between the step bolt (3) and the center of the bolt (14).
10. A seat comprising a seat back (5) of a vehicle and a seat energy absorber assembly according to any of claims 1-9;
the seat energy absorption assemblies are symmetrically arranged at two ends of a seat back (5) of the vehicle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121283735.1U CN215621556U (en) | 2021-06-09 | 2021-06-09 | Seat energy-absorbing assembly and seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121283735.1U CN215621556U (en) | 2021-06-09 | 2021-06-09 | Seat energy-absorbing assembly and seat |
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| Publication Number | Publication Date |
|---|---|
| CN215621556U true CN215621556U (en) | 2022-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121283735.1U Active CN215621556U (en) | 2021-06-09 | 2021-06-09 | Seat energy-absorbing assembly and seat |
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| CN (1) | CN215621556U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023178831A1 (en) * | 2022-03-21 | 2023-09-28 | 延锋国际汽车技术有限公司 | Restoration and energy absorption mechanism for seat backrest and automobile seat |
-
2021
- 2021-06-09 CN CN202121283735.1U patent/CN215621556U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023178831A1 (en) * | 2022-03-21 | 2023-09-28 | 延锋国际汽车技术有限公司 | Restoration and energy absorption mechanism for seat backrest and automobile seat |
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