CN218519567U - Zero-gravity seat's initiative return formula back, zero-gravity seat and vehicle - Google Patents
Zero-gravity seat's initiative return formula back, zero-gravity seat and vehicle Download PDFInfo
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- CN218519567U CN218519567U CN202222797721.2U CN202222797721U CN218519567U CN 218519567 U CN218519567 U CN 218519567U CN 202222797721 U CN202222797721 U CN 202222797721U CN 218519567 U CN218519567 U CN 218519567U
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Abstract
The utility model discloses an active return type backrest of a zero gravity seat, the zero gravity seat and a vehicle, which comprise a backrest angle adjuster, a backrest supporting framework, a backrest rotating framework, an electromagnetic lock, a backrest air bag module and two limiting connecting rods; the fixed part of the backrest angle adjuster is arranged on the seat framework, and the adjusting part of the backrest angle adjuster comprises a second cylindrical pin and a first cylindrical pin; both sides of the lower end of the backrest support framework are provided with openings correspondingly matched with the first cylindrical pin and the second cylindrical pin, both sides of the lower end of the backrest rotating framework are provided with through holes correspondingly matched with the second cylindrical pin, and the backrest rotating framework can rotate around the second cylindrical pin; one end of each of the two limiting connecting rods is rotatably connected with the upper end of the backrest supporting framework, and the other end of each of the two limiting connecting rods is rotatably connected with the middle of the backrest rotating framework. The utility model discloses before the vehicle is about to take place head-on collision with the collision in-process, with passenger's the gesture of taking by the quick return of zero gravity mode to normally taking the mode.
Description
Technical Field
The utility model belongs to the technical field of vehicle seat, concretely relates to initiative return type back, zero gravity seat and vehicle of zero gravity seat.
Background
With the continuous improvement of the requirement of automobile users on the riding comfort of the automobile, zero-gravity seats are increasingly popularized at present, but when a front collision accident occurs when a passenger is in a zero-gravity riding posture in the driving process of the automobile, a traditional restraint system cannot effectively restrain the passenger, the passenger slides out of a safety belt under the action of inertia, the phenomenon is defined as a 'dive' phenomenon, at the moment, the belly of a human body can be seriously damaged due to the squeezing action of a safety belt waistband, the lumbar of the human body can be seriously damaged due to large bending moment, and the safety belt 'neck tightening' phenomenon occurs. For example, in a zero-gravity seat back frame disclosed in CN113147543A, a zero-gravity seat frame disclosed in CN214295693U, and a zero-gravity seat for an automobile disclosed in CN208682692U, the existing zero-gravity seat mechanism mainly solves the problem of zero-gravity comfort function, and does not solve the problem of improving safety performance of passengers by actively returning the back when a frontal collision occurs.
Therefore, there is a need to develop a new active return type backrest of zero gravity seat, zero gravity seat and vehicle.
Disclosure of Invention
An object of the utility model is to provide a zero gravity seat's initiative return formula back, zero gravity seat and vehicle, before the vehicle is about to take place head-on collision and collision in-process, can be with passenger's the gesture of taking by the quick return of zero gravity mode to normally taking the mode.
In a first aspect, the active return type backrest of the zero gravity seat of the present invention comprises a backrest angle adjuster, a backrest support frame, a backrest rotation frame, an electromagnetic lock, a backrest airbag module and two limit connecting rods;
the backrest angle adjuster comprises a fixing part, an adjusting part and a fixing part, wherein the fixing part of the backrest angle adjuster is arranged on a seat framework, and the adjusting part of the backrest angle adjuster comprises a second cylindrical pin and a plurality of first cylindrical pins which are distributed around the periphery of the second cylindrical pin at equal intervals by taking the second cylindrical pin as a center;
both sides of the lower end of the backrest support framework are provided with openings correspondingly matched with the first cylindrical pin and the second cylindrical pin, and the first cylindrical pin and the second cylindrical pin on the backrest angle adjuster are inserted into the corresponding openings;
through holes correspondingly matched with the second cylindrical pins are formed in the two sides of the lower end of the backrest rotating framework, and the backrest rotating framework can rotate around the second cylindrical pins;
one ends of the two limiting connecting rods are rotatably connected with the upper end part of the backrest supporting framework, the other ends of the two limiting connecting rods are rotatably connected with the middle part of the backrest rotating framework, and the backrest supporting framework, the backrest rotating framework and the two limiting connecting rods form a four-bar mechanism;
the electromagnetic lock comprises a first lock body and a second lock body which is in contact with the first lock body to realize locking, and the first lock body is fixed at the upper end of the backrest support framework; the second lock body is fixed at the upper end of the backrest rotating framework;
the backrest airbag module is fixed on the backrest support framework.
Optionally, the backrest support frame comprises an airbag mounting plate and side plates fixedly arranged at the left side and the right side of the airbag mounting plate; the backrest airbag module is fixedly arranged on the airbag mounting plate; the first lock body is fixed at the upper end of the air bag mounting plate; the opening is formed in the lower end portion of the side plate.
Optionally, the backrest rotating framework comprises an airbag pushing plate, a tubular framework and two rotating supports, the tubular framework is in a downward-opening U shape, the airbag pushing plate is welded in the tubular framework, and the two rotating supports are respectively welded at two ends of the tubular framework; the through hole is formed in the lower end part of the rotating bracket; the second lock body is fixed at the upper end part of the air bag pushing plate.
Optionally, the inner sides of the two side plates are provided with first rotating pins; the left side and the right side of the tubular framework are provided with second rotating pins; two ends of the two limiting connecting rods are respectively connected with a first rotating pin of the backrest supporting framework and a second rotating pin of the backrest rotating framework.
In a second aspect, a zero gravity seat, adopt like the utility model a zero gravity seat's initiative return formula back.
In a third aspect, the present invention provides a vehicle, which comprises a zero gravity seat.
The utility model has the advantages of it is following: when the passenger is in the zero-gravity sitting posture and has a frontal collision, the backrest airbag explodes to push the backrest rotating framework to rotate forwards, and the seat backrest pushes the back of the passenger to return the sitting posture of the passenger from the zero-gravity posture to the normal posture, so that the safety performance of the passenger in the frontal collision is improved.
Drawings
FIG. 1 is a schematic view of a back recliner and its assembly in accordance with the present embodiment;
FIG. 2 is a schematic view of the back support frame of the present embodiment;
FIG. 3 is a schematic view of a backrest rotating frame according to the present embodiment;
FIG. 4 is a schematic view of the back support frame assembly of the present embodiment;
FIG. 5 is a schematic view of the backrest rotating frame assembly of the present embodiment;
FIG. 6 is a schematic view of the overall assembly of the active-return backrest of the present embodiment;
FIG. 7 is a schematic view of the active-return backrest of the present embodiment in normal use;
FIG. 8 is a schematic view of the active-return backrest of the present embodiment in a return position;
fig. 9 is a flow chart of the return control of the active return type backrest in the present embodiment;
in the figure: 10-backrest angle adjuster, 101-first cylindrical pin, 102-second cylindrical pin, 20-backrest support framework, 201-airbag mounting plate, 202-side plate, 203-first rotating pin, 204-hole, 30-backrest rotating framework, 301-airbag pushing plate, 302-tubular framework, 303-rotating bracket, 304-through hole, 305-second rotating pin, 40-electromagnetic lock, 401-first lock body, 402-second lock body, 50-backrest airbag module and 60-limiting two connecting rods.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1, 2 and 3, in the present embodiment, an active return type backrest of a zero gravity seat includes a backrest angle adjuster 10, a backrest support frame 20, a backrest rotation frame 30, an electromagnetic lock 40, a backrest airbag module 50 and two limit connecting rods 60;
as shown in fig. 1, the fixed portion of the backrest recliner 10 is mounted on the seat frame, and the adjusting portion of the backrest recliner 10 includes a second cylindrical pin 102 and five first cylindrical pins 101 that are equally spaced around the outer circumference of the second cylindrical pin 102 with the second cylindrical pin 102 as the center.
As shown in fig. 2, the backrest support frame 20 includes an airbag mounting plate 201 and side plates 202 fixedly disposed on the left and right sides of the airbag mounting plate 201, a backrest airbag module 50 is fixed on the airbag mounting plate 201, a first lock 401 of the electromagnetic lock 40 is fixed on the upper end of the airbag mounting plate 201, openings 204 correspondingly engaged with the second cylindrical pin 102 and the first cylindrical pin 101 are disposed at the lower ends of the two side plates 202, and first rotation pins 203 are disposed inside the two side plates 202.
As shown in fig. 3, the backrest rotating frame 30 includes an airbag pushing plate 301, a tubular frame 302 and two rotating brackets 303, the tubular frame 302 is U-shaped with a downward opening, the airbag pushing plate 301 is welded in the tubular frame 302, the two rotating brackets 303 are respectively welded at two ends of the tubular frame 302, a through hole 304 is formed on each of the two rotating brackets 303, two sides of the tubular frame 302 are respectively provided with a second rotating pin 305, and the upper end of the airbag pushing plate 301 is fixed with a second lock body 402 of the electromagnetic lock 40.
As shown in fig. 4, the second cylindrical pin 102 and each first cylindrical pin 101 of the backrest recliner 10 are respectively inserted into the corresponding holes 204, so that the backrest support frame 20 and the adjustment portion of the backrest recliner 10 share a common degree of freedom, thereby achieving adjustment of the backrest angle.
As shown in fig. 5, the second cylindrical pin 102 of the backrest recliner 10 is engaged with the through hole 304 of the backrest rotating frame 30, so that the backrest rotating frame 30 rotates around the second cylindrical pin 102.
As shown in fig. 6, two ends of the two limit links 60 are respectively engaged with the first rotation pin 203 of the backrest support frame 20 and the second rotation pin 305 of the backrest rotation frame 30, and the backrest support frame 20, the backrest rotation frame 30 and the two limit links 60 form a four-bar linkage.
As shown in fig. 7, during normal use, the backrest support frame 20 overlaps the backrest rotation frame 30, and at this time, the first lock body 401 and the second lock body 402 of the electromagnetic lock 40 are in contact and locked, and during backrest angle adjustment, the backrest support frame 20 and the backrest rotation frame 30 simultaneously rotate around the second cylindrical pin 102 of the backrest angle adjuster 10, and the two limiting links 60 are folded to be in the folded state.
As shown in fig. 8, the backrest returning process is described as follows: the controller ECU sends an unlocking signal to the electromagnetic lock 40, at this time, the backrest support frame 20 and the backrest rotation frame 30 are in an unlocking state, and at the same time, the vehicle collision signal controller ECU sends an airbag explosion signal to the backrest airbag module 50, the backrest airbag module 50 is initially exploded and unfolded, the unfolded airbag generates thrust to the airbag mounting plate 201 of the backrest support frame 20 and the airbag push plate 301 of the backrest rotation frame 30, so that the backrest support frame 20 and the backrest rotation frame 30 start to be separated, because the backrest support frame 20 is fixed with the backrest recliner 10, and the backrest recliner 10 is in a locking state, the backrest support frame 20 is fixed, the backrest rotation frame 30 rotates forwards around the second cylindrical pin 102 of the backrest recliner 10, the seat backrest pushes the back of the occupant forwards, so that the occupant returns to a normal sitting posture from a zero gravity sitting posture, and the backrest rotation frame 30 rotating forwards moves to a certain position and then limits the two connecting rods 60 to be in a maximum stretching state, so that the backrest rotation frame 20 can be limited to push the occupant forwards, thereby avoiding a phenomenon of rotating the backrest rotation frame 20 to be in a certain position.
As shown in fig. 9, the returning control method of the active returning backrest is as follows:
firstly, the control system monitors whether a passenger is on a zero-gravity seat through a cushion pressure type sensor below a seat cushion, if no passenger is on, the cycle of the wheel is finished, otherwise, the control system monitors whether a seat back is in a zero-gravity posture through an angle sensor on a back angle adjuster, if the seat back is not in the zero-gravity posture, the cycle of the wheel is finished, if the seat back is in the zero-gravity posture, whether the passenger wears a safety belt is monitored through a safety belt spring bolt sensor, if the passenger does not wear the zero-gravity safety belt, the cycle of the wheel is finished, if the passenger wears the safety belt, whether the probability that the vehicle collides is greater than a certain threshold value is predicted on the next step, if the probability of collision is smaller than the threshold value, the cycle of the wheel is finished, otherwise, the cycle of the wheel is finished by predicting whether the damage level of the passenger after the current vehicle collides is smaller than the certain threshold value, if the damage level of the passenger is smaller than the threshold value, an unlocking signal is generated to an electromagnetic lock 40, and a firing signal is sent to a backrest airbag module 50 on the next step.
In this embodiment, a zero-gravity seat adopts the active return backrest of the zero-gravity seat described in this embodiment.
In this embodiment, a vehicle employs the zero-gravity seat as described in this embodiment.
The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be equivalent replacement modes, and all are included in the scope of the present invention.
Claims (6)
1. The utility model provides a zero gravity seat's initiative return formula back which characterized in that: comprises a backrest angle adjuster (10), a backrest support framework (20), a backrest rotating framework (30), an electromagnetic lock (40), a backrest airbag module (50) and two limiting connecting rods (60);
the fixed part of the backrest angle adjuster (10) is arranged on a seat framework, and the adjusting part of the backrest angle adjuster (10) comprises a second cylindrical pin (102) and a plurality of first cylindrical pins (101) which are distributed around the periphery of the second cylindrical pin (102) at equal intervals by taking the second cylindrical pin (102) as the center;
both sides of the lower end of the backrest support framework (20) are provided with holes (204) which are correspondingly matched with the first cylindrical pin (101) and the second cylindrical pin (102), and the first cylindrical pin (101) and the second cylindrical pin (102) on the backrest angle adjuster (10) are inserted into the corresponding holes (204);
through holes (304) correspondingly matched with the second cylindrical pins (102) are formed in the two sides of the lower end of the backrest rotating framework (30), and the backrest rotating framework (30) can rotate around the second cylindrical pins (102);
one end of each of the two limiting connecting rods (60) is rotatably connected with the upper end of the backrest supporting framework (20), the other end of each of the two limiting connecting rods (60) is rotatably connected with the middle of the backrest rotating framework (30), and the backrest supporting framework (20), the backrest rotating framework (30) and the two limiting connecting rods (60) form a four-bar mechanism;
the electromagnetic lock (40) comprises a first lock body (401) and a second lock body (402) which is in contact with the first lock body (401) to realize locking, wherein the first lock body (401) is fixed on the backrest support framework (20); the second lock body (402) is fixed on the backrest rotating framework (30);
the backrest airbag module (50) is fixed on the backrest support frame (20).
2. The active return back of a zero-gravity seat as claimed in claim 1, wherein: the backrest support frame (20) comprises an air bag mounting plate (201) and side plates (202) fixedly arranged at the left side and the right side of the air bag mounting plate (201); the backrest airbag module (50) is fixedly arranged on the airbag mounting plate (201); the first lock body (401) is fixed at the upper end of the air bag mounting plate (201); the opening (204) is formed in the lower end portion of the side plate (202).
3. The active return back of a zero-gravity seat as claimed in claim 2, wherein: the backrest rotating framework (30) comprises an air bag pushing plate (301), a tubular framework (302) and two rotating supports (303), the tubular framework (302) is in a U shape with a downward opening, the air bag pushing plate (301) is welded in the tubular framework (302), and the two rotating supports (303) are respectively welded at two ends of the tubular framework (302); the through hole (304) is formed in the lower end part of the rotating bracket (303); the second lock body (402) is fixed at the upper end part of the air bag push plate (301).
4. The active return back of a zero-gravity seat of claim 3, wherein: the inner sides of the two side plates (202) are respectively provided with a first rotating pin (203); the left side and the right side of the tubular framework (302) are respectively provided with a second rotating pin (305); two ends of the two limiting connecting rods (60) are respectively connected with a first rotating pin (203) of the backrest supporting framework (20) and a second rotating pin (305) on the backrest rotating framework (30).
5. A zero-gravity seat, comprising: an active return type backrest using the zero-gravity seat as claimed in any one of claims 1 to 4.
6. A vehicle, characterized in that: a zero-gravity seat as claimed in claim 5 is employed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222797721.2U CN218519567U (en) | 2022-10-24 | 2022-10-24 | Zero-gravity seat's initiative return formula back, zero-gravity seat and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222797721.2U CN218519567U (en) | 2022-10-24 | 2022-10-24 | Zero-gravity seat's initiative return formula back, zero-gravity seat and vehicle |
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| Publication Number | Publication Date |
|---|---|
| CN218519567U true CN218519567U (en) | 2023-02-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202222797721.2U Active CN218519567U (en) | 2022-10-24 | 2022-10-24 | Zero-gravity seat's initiative return formula back, zero-gravity seat and vehicle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117429327A (en) * | 2023-12-18 | 2024-01-23 | 长春富晟汽车技术研发有限公司 | Zero gravity seat with quick return mechanism and quick return method thereof |
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2022
- 2022-10-24 CN CN202222797721.2U patent/CN218519567U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117429327A (en) * | 2023-12-18 | 2024-01-23 | 长春富晟汽车技术研发有限公司 | Zero gravity seat with quick return mechanism and quick return method thereof |
| CN117429327B (en) * | 2023-12-18 | 2024-03-19 | 长春富晟汽车技术研发有限公司 | Zero gravity seat with quick return mechanism and quick return method thereof |
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