CN214450498U

CN214450498U - Protection assembly of active protection headrest device of automobile seat

Info

Publication number: CN214450498U
Application number: CN202120084449.6U
Authority: CN
Inventors: 俞陆新; 崔强; 柳砚
Original assignee: Anhui Technical College of Mechanical and Electrical Engineering
Current assignee: Anhui Technical College of Mechanical and Electrical Engineering
Priority date: 2021-01-13
Filing date: 2021-01-13
Publication date: 2021-10-22
Anticipated expiration: 2031-01-13

Abstract

The utility model discloses a protective component of an active protective headrest device of an automobile seat, which relates to the field of safety devices of automobile seats and comprises two transmission shafts, the upper end of the transmission shaft is inserted with a plurality of support rods, the two ends of the support rods are rotatably connected in the headrest of the automobile seat, an inflating device is arranged above the transmission shaft and connected to a buffer air bag, the buffer air bag is positioned in front of the headrest and used for buffering the elasticity of the headrest during rebounding and protecting the neck of a driver, a positioning shaft is fixed at the lower end of the transmission shaft, a locking mechanism fixed above the backrest of the seat is arranged above the positioning shaft, the locking mechanism is used for locking the position of the headrest when the headrest rebounds, the utility model rapidly inflates the buffer air bag after receiving the impact of the transmission shaft by arranging the impact sensor, and buffers and supports the head and neck of the driver; the headrest can be fixed in position after rebounding through the arranged locking mechanism.

Description

Protection assembly of active protection headrest device of automobile seat

Technical Field

The utility model relates to a car seat safety device field specifically is a car seat initiative protection headrest device's protection component.

Background

The rear-end collision leads to its emergence probability to be on the high side because of its unpredictability among the traffic accident, though cause fatal injury of passenger and the serious deformation homogeneous phase of automobile body relatively less, still can cause the neck injury to preceding car passenger because of the whiplash effect, the back through seat system among the prior art and headrest restriction head relatively and last trunk backward when the rear-end collision, and then reduce the risk of whiplash injury, common initiative headrest mechanism withdraws again because of the ageing headrest of apparatus after responding to kick-back in the market, can not in time support the headrest position fixed, or the headrest position is great than anticipated rebound volume, the headrest can not provide certain buffering, lead to the headrest to collide and cause the injury to driver's head.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a protection component of car seat initiative protection headrest device to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a protection component of car seat initiative protection headrest device, includes two transmission shafts, the transmission shaft bottom is equipped with and promotes the axle, it has a plurality of bracing pieces to peg graft in the upper end of transmission shaft, the bracing piece both ends are rotated and are connected in car seat headrest, the top of transmission shaft is equipped with aerating device, aerating device connects on buffering the gasbag, buffering the gasbag is located the place ahead of headrest and is used for elasticity and protection driver's neck when buffering the headrest and kick-backs, the lower extreme of transmission shaft is fixed with the location axle, location off-axial side is equipped with the locking mechanism, the locking mechanism is fixed in the backrest top, the locking mechanism is used for with headrest position locking when the headrest kick-backs.

Preferably, the inflator comprises an impact sensor, a signal processor and an igniter, the impact sensor is mounted in the headrest and located right above the transmission shaft, one end of the signal processor is electrically connected to the impact sensor, and the other end of the signal processor is electrically connected to the igniter.

Preferably, the buffer air bag comprises a back brain air bag and neck protection air bags, the back brain air bag is installed in front of the headrest, and the neck protection air bags are located on two sides of the back brain air bag.

Preferably, the rib gasbag is the arc after aerifing the completion, be equipped with many places disappointing hole behind brain gasbag and the rib gasbag.

Preferably, the locking mechanism comprises a first buckle, a second buckle, a fixing frame and a plurality of springs, the first buckle and the second buckle are hinged and arranged in a crossed mode through a rotating shaft and are installed in the fixing frame through the rotating shaft, and the springs are installed at the upper ends of the first buckle and the second buckle and are located between the first buckle and the second buckle.

Preferably, be equipped with spacing tooth under integrated into one piece's the outside and spacing tooth on the outside on the first buckle, be equipped with spacing tooth under integrated into one piece's the inboard and spacing tooth on the inboard on the second buckle, spacing tooth and inboard down the terminal surface down of spacing tooth are the inclined plane of indent under the outside, spacing tooth and inboard down terminal surface of going up spacing tooth are the plane on the outside.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model is characterized in that the arranged air bag behind the brain and the air bag for neck protection are inflated rapidly after the impact sensor receives the impact of the transmission shaft, and the head and neck of the driver are buffered and supported and protected after the headrest rebounds;

2. the utility model discloses a through the dead mechanism of lock that sets up can be after the headrest kick-backs will die with the fixed location axle lock of headrest, the headrest that the unexpected withdrawal leads to after avoiding appearing the headrest kick-backs can not provide the phenomenon of guard action and appear.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the present invention;

FIG. 3 is a schematic view of the internal structure of the present invention;

FIG. 4 is a schematic view of the utility model after being inflated;

FIG. 5 is a schematic view of the locking mechanism of the present invention;

fig. 6 is a schematic view of a first buckle structure of the present invention;

fig. 7 is a schematic view of a second buckle structure of the present invention.

In the figure: 1-a transmission shaft; 2-pushing the shaft; 3-supporting rods;

4-an inflation device; 41-impact sensor; 42-a signal processor; 43-an igniter;

5-a buffer air bag; 51-retrocerebral air sac; 52-neck protection airbag;

6-positioning the shaft; 7-locking mechanism; 71-a first snap; 711-outer lower limit teeth; 712-upper limit teeth on the outer side; 72-a second snap; 721-inner lower limit teeth; 722-upper limit teeth on the inner side; 73-a mount; 74-spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 7, the present invention provides a technical solution: the utility model provides a protection components of car seat initiative protection headrest device, includes two

transmission shafts

1, 1 bottom of transmission shaft is equipped with promotes axle 2, it has a plurality of bracing pieces 3 to peg graft in the upper end of

transmission shaft

1, 3 both ends of bracing piece are rotated and are connected in car seat headrest, the top of transmission shaft 1 is equipped with aerating device 4, aerating device 4 is connected on buffering gasbag 5, buffering gasbag 5 is located the place ahead of headrest and is used for elasticity and protection driver's neck when buffering headrest kick-backs, the lower extreme of transmission shaft 1 is fixed with

location axle

6, 6 tops in the location axle are equipped with locking mechanism 7, locking mechanism 7 is fixed in the backrest top, locking mechanism 7 is used for with headrest position locking when the headrest kick-backs.

In this embodiment, the inflator 4 includes an impact sensor 41, a signal processor 42 and an igniter 43, the impact sensor 41 is installed in the headrest and located right above the transmission shaft 1, one end of the signal processor 42 is electrically connected to the impact sensor 41, and the other end is electrically connected to the igniter 43, after the headrest rebounds, the transmission shaft 1 collides with the impact sensor 41, the signal processor 42 transfers the signal to the igniter 43, and the gas generated by the explosion is filled in the buffer airbag 5, so as to provide buffer protection for the head of the driver.

In this embodiment, the cushion airbag 5 includes a rear brain airbag 51 and a neck protection airbag 52, the rear brain airbag 51 is installed in front of the headrest, the neck protection airbag 52 is located at two sides of the rear brain airbag 51, the rear brain airbag 51 is used for providing cushion protection for the rapidly rebounding headrest when the head of the driver is possibly impacted, and the neck protection airbag 52 can provide support for the neck of the driver, so that the driver can be prevented from being injured when the neck swings left and right in a rear-end collision accident.

In this embodiment, be the arc after the rib gasbag 52 aerifys the completion, be equipped with the disappointing hole 53 in many places on gasbag 51 and the rib gasbag 52 behind the brain, curved rib gasbag 52 more laminates human neck, can avoid rib gasbag 52 to cause the extrusion injury to the neck when inflating suddenly, has inflated fixed the neck after and has deflated through disappointing hole 53 and also can avoid the personnel that the fixed neck of long-time caused to suffocate.

In this embodiment, the locking mechanism 7 includes a first latch 71, a second latch 72, a fixing frame 73, and a plurality of springs 74, the first latch 71 and the second latch 72 are hinged and crossed by a rotating shaft 75 and are installed in the fixing frame 73 by the rotating shaft 75, the springs 74 are installed at the upper ends of the first latch 71 and the second latch 72 and are located between the first latch 71 and the second latch 72, the first latch 71 and the second latch 72 are always kept in a closed state by the springs 74, the positioning shaft 6 is driven to rise when the headrest rebounds, and the positioning shaft 6 is fixed between the first latch 71 and the second latch 72, so that the position of the headrest is fixed.

In this embodiment, the first buckle 71 is provided with an integrally formed outer lower limiting tooth 711 and an outer upper limiting tooth 712, the second buckle 72 is provided with an integrally formed inner lower limiting tooth 721 and an inner upper limiting tooth 722, the lower end surfaces of the outer lower limiting tooth 711 and the inner lower limiting tooth 721 are concave inclined surfaces, the lower end surfaces of the outer upper limiting tooth 712 and the inner upper limiting tooth 722 are flat surfaces, when the positioning shaft 6 ascends, the outer lower limiting tooth 711 and the inner lower limiting tooth 721 are forcibly spread by the concave inclined surfaces and are blocked by the flat surfaces at the lower ends of the outer upper limiting tooth 712 and the inner upper limiting tooth 722, and the positioning shaft 6 is fixed between the outer lower limiting tooth 711 and the outer upper limiting tooth 712.

The working principle is as follows: when a rear-end collision accident occurs, the headrest responds quickly, the transmission shaft 1 drives the positioning shaft 6 to ascend, the positioning shaft 6 is forced to be expanded by the outer lower limiting tooth 711 and the inner lower limiting tooth 721 through the inwards concave inclined plane and then blocked by the lower end planes of the outer upper limiting tooth 712 and the inner upper limiting tooth 722 when ascending, the positioning shaft 6 is fixed between the outer lower limiting tooth 711 and the outer upper limiting tooth 712, the position of the headrest is fixed, the phenomenon that the rebound amount of the headrest is too large or the headrest retracts after rebounding due to accidents is avoided, and the headrest is guaranteed to play a role in protecting the neck; meanwhile, the driving shaft 1 is driven by the driving shaft 2 to rebound with the headrest fixed by the supporting rod 3, the driving shaft 1 impacts on the impact sensor 41, the impact signal is transmitted to the igniter 43 by the signal processor 42, gas generated by explosion is filled into the buffering air bag 5, the air bag 51 and the neck protection air bag 52 can be quickly inflated within 0.05 second, the air bag 51 is used for providing buffering protection for the headrest rebounding quickly when the headrest possibly impacts the head of a driver, the neck protection air bag 52 can provide support for the neck of the driver, the neck of the driver can be prevented from being injured when swinging left and right in a rear-end accident, the buffering effect is provided after inflation, the air bag 51 and the neck protection air bag 52 are deflated through the deflation hole 53, and suffocation of personnel caused by long-time neck fixation can be avoided.

Based on the above, the utility model, through the arrangement of the back brain airbag and the neck protection airbag, the impact sensor rapidly inflates after receiving the impact of the transmission shaft, and the headrest rebounds to buffer and support the head and neck of the driver; the locking mechanism can be locked with the fixed positioning shaft of the headrest after the headrest rebounds through the arrangement, and the phenomenon that the headrest cannot provide protection effect due to accidental retraction after the headrest rebounds is avoided.

It will be appreciated by those skilled in the art that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of the invention or which are equivalent to the scope of the invention are embraced by the invention.

Claims

1. The utility model provides a protection component of car seat initiative protection headrest device which characterized in that: including two transmission shafts (1), transmission shaft (1) bottom is equipped with and promotes axle (2), it has a plurality of bracing pieces (3) to peg graft in the upper end of transmission shaft (1), bracing piece (3) both ends are rotated and are connected in car seat headrest, the top of transmission shaft (1) is equipped with aerating device (4), aerating device (4) are connected on buffering gasbag (5), buffering gasbag (5) are located the place ahead of headrest and are used for elasticity and protection driver's neck when buffering headrest kick-backs, the lower extreme of transmission shaft (1) is fixed with location axle (6), location axle (6) top is equipped with locking mechanism (7), locking mechanism (7) are fixed in the backrest top, locking mechanism (7) are used for with headrest position locking when headrest kick-backs.

2. The protection assembly of the active protection headrest device for the car seat according to claim 1, wherein: the inflator (4) comprises an impact sensor (41), a signal processor (42) and an igniter (43), the impact sensor (41) is installed in the headrest and located right above the transmission shaft (1), one end of the signal processor (42) is electrically connected to the impact sensor (41), and the other end of the signal processor (42) is electrically connected to the igniter (43).

3. The protection assembly of the active protection headrest device for the car seat according to claim 1, wherein: the buffer air bag (5) comprises a back brain air bag (51) and a neck protection air bag (52), the back brain air bag (51) is installed in front of the headrest, and the neck protection air bag (52) is located on two sides of the back brain air bag (51).

4. The protection assembly of the active protection headrest device for the car seat according to claim 3, wherein: the neck protection air bag (52) is arc-shaped after being inflated, and a plurality of air release holes (53) are formed in the brain back air bag (51) and the neck protection air bag (52).

5. The protection assembly of the active protection headrest device for the car seat according to claim 1, wherein: the locking mechanism (7) comprises a first buckle (71), a second buckle (72), a fixed frame (73) and a plurality of springs (74), wherein the first buckle (71) and the second buckle (72) are hinged and crossed through a rotating shaft (75) and are arranged in the fixed frame (73) through the rotating shaft (75), and the springs (74) are arranged at the upper ends of the first buckle (71) and the second buckle (72) and are positioned between the first buckle (71) and the second buckle (72).

6. The protection assembly of the active protection headrest device for the car seat according to claim 5, wherein: spacing tooth (712) on spacing tooth (711) and the outside under the outside of being equipped with integrated into one piece on first buckle (71), spacing tooth (722) on spacing tooth (721) and the inboard of being equipped with integrated into one piece under the inboard of second buckle (72), the lower terminal surface of spacing tooth (721) is the inclined plane of indent under spacing tooth (711) and the inboard in the outside, the lower terminal surface of spacing tooth (722) is the plane on spacing tooth (712) and the inboard in the outside.