CN215793317U

CN215793317U - Child seat air bag protection device

Info

Publication number: CN215793317U
Application number: CN202120272894.5U
Authority: CN
Inventors: 方斌; 刘青; 王士贵
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-01-30
Filing date: 2021-01-30
Publication date: 2022-02-11
Anticipated expiration: 2031-01-30

Abstract

The utility model discloses a child seat air bag protection device, which belongs to the technical field of child seat air bag protection devices and is formed by connecting an air bag, an intelligent control system and an inflation device. The air bag is folded on the seat, one part of the air bag can be fixedly connected with a seat belt mesh belt, the inflating device is arranged in one side of the air bag, the inflating device and one side of the air bag are connected and fixed in a child seat backrest through bolts, the intelligent control system is fixed at the lower end of the child seat, and the intelligent control device comprises a data acquisition system, a data processing system, a power supply and a wire harness. The intelligent control system continuously collects information according to the sensor, calculates and marks that the seat is in a collision state through acceleration and angle change, and gives a signal to the inflating device, the inflating device adopts quick release gas to inflate the airbag, the airbag is full of gas and then is positioned on two sides of the neck and the front end of a user, when the user is impacted, the user generates displacement under the action of inertia, the user firstly contacts the airbag, and the airbag plays a role in buffering, so that the injury of the user is reduced.

Description

Child seat air bag protection device

Technical Field

The utility model relates to a child seat air bag protection device, in particular to a child seat air bag protection device.

Background

As an important travel vehicle, a consumer always pays attention to traffic safety, particularly, the riding safety of children is more and more paid attention, and a child seat is accepted and used by general consumers.

According to the statistics of relevant national departments, the traffic injury becomes a second killer of children under the age of 14 in China, the children can be seriously injured in traffic accidents by correctly wearing the child seat and the safety belt, particularly, the head, the neck and the chest of the children are most injured, even if the children are restrained by the safety belt and do not collide with other hard objects in the car for the second time, the children can be seriously injured due to the protection and constraint effects of the safety belt, the resultant acceleration of the head of the children is too large, and the chest of the children is also excessively stressed, and if the children collide with other hard objects in the car for the second time, the children are seriously injured.

Because the automobile safety airbag plays a role, the collision accident of the automobile is judged through calculation according to the automobile body collision signal by the safety airbag controller, the explosion signal of the safety airbag is given, and the child seat is used as a rear-mounted product and is inconvenient to be connected with an automobile body circuit system, so that the automobile body collision data cannot be acquired, and the restraint airbag cannot be assembled.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: a child seat airbag protection device solves the problems in the prior art.

The technical scheme is as follows: a child seat airbag protection device comprises airbag bags connected together through a seat, an inflation unit which is connected together through the airbag bags, can rapidly generate a large amount of gas and can rapidly inflate the airbag bags, and an intelligent control device connected together through the inflation unit.

In a further example, the airbag comprises an airbag body, and a first pull belt connected with the airbag body and used for controlling the shape and the direction of the inflated airbag;

the intelligent control device comprises a shell arranged on a seat base, an information acquisition module arranged in the shell, an information processing module electrically connected with the information acquisition module, a power supply module electrically connected with the information processing module, and a wire harness respectively connected with the information acquisition module and the information processing module;

the inflation unit comprises a bracket arranged on the back of the seat, and the airbag is folded and fixed on the seat.

In a further example, the gasbag body is the enclosure space, including the cavity, the inside of cavity is equipped with at least one first stretching strap, works as the back is aerifyd to the gasbag body, first stretching strap restraint gasbag aerifys the back shape, and children's side is kept away from to the gasbag body, the higher authority of cavity is equipped with the exhaust hole, when children strike to the gasbag body, the exhaust hole discharges appropriate amount of gas.

In a further example, the airbag is composed of at least two groups of airbag bodies, and a safety belt lock catch for connection is arranged between the two airbag bodies;

the safety belt lock catch comprises a first safety belt and a second safety belt which are connected to the upper surface of a seat body, the safety belt lock catch body is arranged on the upper surface of the first safety belt, and a safety belt lock tongue is arranged on the upper surface of the second safety belt;

the safety belt lock body is connected with the safety belt lock tongue lock catch.

In a further example, the intelligent control device further comprises a circuit board module electrically connected with the power supply module, and a sensor assembly which is connected with the circuit board module and used for calculating, identifying and judging that a user is in an impact state and giving input information to the inflation unit;

the sensor assembly comprises one or more combinations of a gyro sensor, an acceleration sensor, an angle sensor, a pressure sensor or a communication equipment module which are sequentially arranged on the circuit board module.

In a further example, the intelligent control device is also used for monitoring whether the seat is in a use state through a pressure sensor, and particularly has no safety belt fastening reminding function;

meanwhile, the weight and the sitting position of a user can be monitored through the pressure sensor, and the functions of intelligently protecting and judging the detonation grade of the airbag body and the size of the airbag are achieved.

In a further example, the intelligent control device comprises a wireless communication module and an internet of things terminal which are arranged on the circuit board module, and can implement information interaction, position positioning, network communication, bluetooth control communication and infrared control communication.

In a further example, the pressure sensor is connected with the safety belt buckle circuit, the pressure sensor and the safety belt buckle circuit form a series circuit, if a safety belt is worn, the safety belt buckle is connected with a safety belt bolt, the connection circuit is opened, and the circuit is disconnected; if the safety belt is not worn, the circuit in the safety belt lock catch is in a closed access state, the circuit is connected for alarming, and the alarming and reminding functions of the unbuckled safety belt are achieved.

In a further example, the inflating unit adopts a high-pressure gas storage bottle or a hybrid gas generator to fill the gas bag with gas instantly;

the inflatable unit is internally provided with different inflatable cavities, the weight and sitting posture of a user are detected through the intelligent control device, the inflatable state is judged, the inflatable state can be divided into first-stage inflation, secondary re-inflation and repeated inflation, and the requirement of the user on the inflation quantity is met.

Has the advantages that: the utility model discloses a child seat air bag protection device which is formed by connecting an air bag, an intelligent control system and an inflating device. The air bag is folded on the seat, one part of the air bag can be fixedly connected with a seat belt mesh belt, the inflating device is arranged in one side of the air bag, the inflating device and one side of the air bag are connected and fixed in a child seat backrest through bolts, the intelligent control system is fixed at the lower end of the child seat, and the intelligent control device comprises a data acquisition system, a data processing system, a power supply and a wire harness. The intelligent control system continuously collects information according to the sensor, calculates and marks that the seat is in a collision state through acceleration and angle change, and gives a signal to the inflating device, the inflating device adopts quick release gas to inflate the airbag, the airbag is full of gas and then is positioned on two sides of the neck and the front end of a user, when the user is impacted, the user generates displacement under the action of inertia, the user firstly contacts the airbag, and the airbag plays a role in buffering, so that the injury of the user is reduced.

Drawings

Fig. 1 is a schematic view showing a state in which the seat airbag protection apparatus of the present invention is used.

Fig. 2 is a schematic view 1 showing an unused state of the seat airbag protection apparatus of the present invention.

Fig. 3 is an unused schematic view of the seat airbag protection apparatus of the present invention.

Fig. 4 is a schematic view of the use of the seat airbag protection apparatus of the present invention 1.

The reference signs are: the safety belt comprises an airbag 2, a first pull belt 201, an exhaust hole 202, a safety belt buckle 203, a first safety belt 204, a second safety belt 205, a safety belt bolt 206, an inflation unit 3, a shell 301, a bracket 306, an intelligent control device 4, a shell 401, an information acquisition module 402, a power supply module 404, a wiring harness 405, a circuit board module 506 and a pressure sensor 6.

Detailed Description

Through research and analysis of the applicant, even if the child is restrained by the safety belt, the child can be seriously injured due to the protective constraint action of the safety belt, the resultant acceleration of the head of the child is too large, and the chest of the child is too large, and if other hard objects in the secondary collision car are injured more seriously. In light of these problems, the applicant has proposed a child seat airbag protection device, which is as follows.

A child seat airbag protection device comprises an airbag bag 2, a first pull belt 201, an exhaust hole 202, a seat belt buckle 203, a first seat belt 204, a second seat belt 205, a seat belt lock tongue 206, an inflation unit 3, a shell 301, a support 306, an intelligent control device 4, a shell 401, an information acquisition module 402, a power supply module 404, a wire harness 405, a circuit board module 506 and a pressure sensor 6.

The seat is arranged at a preset position and comprises a seat body, the airbag 2 is connected with the seat body, the inflation unit 3 is connected with the airbag 2, the intelligent control device 4 is connected with the inflation unit 3, the drawstring device 5 is connected with the airbag 2 body, the shell 401 is arranged at the bottom of the seat body, the information acquisition module 402 is arranged inside the shell 401, the information processing module is electrically connected with the information acquisition module 402, the power supply module 404 is electrically connected with the information processing module, the wiring harness 405 is respectively connected with the information acquisition module 402 and the information processing module, the bracket 306 is arranged at the back of the seat body, the airbag 2 is folded and fixed on the seat body, and the airbag 2 body is a closed space, including the cavity, the inside of cavity is equipped with at least one first stretching strap 201, works as after 2 bodies of gasbag are aerifyd, children's side is kept away from to 2 bodies of gasbag, be equipped with exhaust hole 202 on the cavity, when children assault to 2 bodies of gasbag, exhaust hole 202 is opened, discharges appropriate amount of gas simultaneously.

Specifically, the airbag 2 is composed of at least two groups of airbag 2 bodies, and a safety belt lock 203 for connection is arranged between the two airbag 2 bodies;

the safety belt buckle 203 comprises a first safety belt 204 and a second safety belt 205 which are connected to the upper surface of a seat body, the safety belt buckle 203 body is arranged on the first safety belt 204, and a safety belt bolt 206 is arranged on the second safety belt 205;

the belt lock 203 body is in lock connection with the belt tongue 206.

As a preferable scheme, before the airbag 2 is not inflated, a part of the airbag is folded and fixed at the left and right sides of the upper part of the first safety belt 204 and the second safety belt 205, and the middle of the airbag 2 at the two sides is provided with a connecting mechanism, and the connecting mode includes, but is not limited to, a latch (a tongue and a latch), a buckle, a mechanical fixing mode, a zipper, a snap fastener, and a velcro connection. The safety belt is tied, and the two side bags are connected together through the connecting mechanism. One part is connected with an inflating unit 3 and fixed in the backrest of the chair, and the airbag 2 is distributed on the two sides of the neck and in front of the neck of a user after being inflated.

The circuit board module 506 is electrically connected with the power module 404, the sensor assembly is connected with the circuit board module 506, and one or more combinations of a gyro sensor, an acceleration sensor, an angle sensor, a pressure sensor or a voice device module are respectively and sequentially arranged on the circuit board module 506;

specifically, the intelligent control device 4 is further configured to monitor whether the seat is in a use state through a pressure sensor, and specifically has a function of reminding that the seat belt is not fastened; meanwhile, the weight of a user can be monitored through the pressure sensor, and the functions of intelligently protecting and judging the detonation grade of the airbag 2 body and the size of the airbag 2 can be achieved.

Specifically, the pressure sensor is electrically connected with the safety belt buckle 203 to form a series circuit, if a safety belt is worn, the safety belt buckle 203 is connected with the safety belt bolt 206, the connection circuit is opened, and the circuit is disconnected; if the safety belt is not worn, the circuit in the safety belt lock catch 203 is in a closed circuit state, the circuit is connected for alarming, and the warning and reminding functions of the non-fastened safety belt are achieved.

Specifically, in a further example, the inflating unit adopts a high-pressure gas storage bottle or a hybrid gas generator to quickly fill the airbag with gas instantly;

As a preferable mode, the inflator 3 includes a housing 301 provided at the bottom of the seat body, a filter layer provided inside the housing 301, a gas generating agent provided inside the filter layer, and an ignition device connected to the gas generating agent;

air outlets are arranged on the shell 301 at intervals in the circumferential direction;

the gas generating agent is prepared into a sheet shape by sodium azide and ferric oxide;

and a combustion improver is arranged on the outer side of the electric fire device.

Specifically, the intelligent control device 4 has a continuous self-checking function of a circuit and functions, and if abnormity is found, an alarm is automatically given;

specifically, the intelligent control device 4 may have a wireless communication module and an internet of things terminal, and may implement information interaction, position location, network communication, bluetooth control communication, and infrared control communication.

Specifically, the inside more than one stretching strap that contains of air-bag 2, the bag type after air-bag 2 aerifys can be revised to the stretching strap, is favorable to user and air-bag 2 contact, and furthest cushioning effect reduces the injury.

Specifically, before the airbag 2 is not inflated, a part of the airbag is folded and fixed on the left side and the right side of the upper part of the safety belt, a connecting mechanism is arranged in the middle of the airbag on the two sides, and the connecting mode includes but is not limited to lock catches (lock tongues and lock catches), buckles, mechanical fixing, zippers, snap buckles and magic tape connection. The safety belt is tied, and the two side bags are connected together through the connecting mechanism. One part is connected with an inflation unit 3 and fixed in the backrest of the child seat, and the airbag 2 is distributed on two sides of the neck and in front of the neck of a user after being inflated.

As a preferred scheme, after the inflation unit 3 receives an inflation signal, the air bag 2 is instantly inflated, the inflation unit 3 sequentially passes through the space of the inner bag of the backrest, the bags on two sides of the neck and the bag on the front part of the chest, and the two air bag packages on the front part of the chest are connected together by the connecting mechanism after inflation.

As a preferred aspect, the inflator 3 may be, but not limited to, a compressed gas canister, a pyrotechnic gas generator, or a hybrid gas generator, which can instantaneously generate a large amount of gas to fill the airbag 2. The inflation unit 3 comprises a shell 301, a filter layer, a gas generating agent and an ignition device which are sequentially arranged from outside to inside, gas outlets are formed in the shell 301 at intervals in the circumferential direction, the gas generating agent can be made into a sheet shape by sodium azide and ferric oxide, a combustion improver is further arranged on the outer side of the ignition device, when the ignition device receives current or voltage, heat or flame is instantly generated, so that the combustion improver burns and releases heat, severe chemical reaction occurs between the sodium azide and the ferric oxide at high temperature and high pressure, a large amount of nitrogen is generated, non-sodium azide can be adopted in the same way, the gas generating agent capable of instantly generating a large amount of gas can be generated in severe combustion, the filter layer is used for blocking particles generated by the gas generating agent, accordingly, the phenomenon that high-temperature particles are adhered to a bag to cause damage is avoided, and the integrity of the bag is guaranteed.

The same gas charging unit 3 can also adopt a mixed gas generator which is packaged in a metal shell 401, an igniter is arranged in the middle, a combustion improver is arranged on the periphery, when the igniter receives current or voltage sent by an automatic device, the igniter is detonated instantly, a high-pressure gas cylinder is opened, the high-pressure gas releases a large amount of gas from the gas cylinder instantly,

furthermore, the inflation unit 3 can adopt a plurality of cavities, adjust the gas production time and the gas production rate, respond to users with different weights and sitting postures, and achieve a better protection effect.

The working principle is as follows: when a user is in the seat, the first safety belt 204 and the second safety belt 205 simultaneously connect the air bags 2 at two sides together through the safety belt buckles 203, one part of the air bags is connected with the inflating unit 3 and fixed in the backrest of the seat, the air bags 2 are distributed at two sides and in front of the neck of the user after being inflated, and meanwhile, the intelligent control device 4 judges that the user is seated in the seat; the pressure sensor is electrically connected with the harness 405 of the safety belt buckle 203 to form a series circuit, if a safety belt is worn, the safety belt buckle 203 is connected with the safety belt bolt 206, the connection circuit is opened, and the circuit is disconnected; if the safety belt is not worn, the circuit in the safety belt lock catch 203 is in a closed circuit state, the circuit is connected to alarm, and a user is reminded to fasten the safety belt; when the user fastened the safety belt, can put through and intelligent control ware circuit, acceleration sensor and gyroscope were in operating condition in the intelligent control device 4 this moment, constantly detected the seat state: when a user is in the seat, the intelligent control device 4 judges the weight of the user and the posture of the user, and the intelligent control device 4 judges the inflation amount and the inflation time of the inflation unit 3 according to the sitting position and the weight of the user; when the acceleration is monitored to continuously reach the preset threshold value or the gyroscope detects that the angle change reaches the preset threshold value, the inflation unit 3 is given input information (including but not limited to current, voltage and digital signals), and the inflation unit 3 instantly generates or releases a large amount of gas to fill the airbag 2 body, so that a user is protected.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the embodiments, and various equivalent changes can be made to the technical solution of the present invention within the technical idea of the present invention, and these equivalent changes are within the protection scope of the present invention.

Claims

1. A child seat airbag protection device is characterized by comprising an airbag connected together through a seat, an inflation unit which is connected together through the airbag, can rapidly generate a large amount of gas and can rapidly inflate the airbag, and an intelligent control device connected together through the inflation unit.

2. A child seat airbag protection device according to claim 1, wherein: the airbag comprises an airbag body and a first pull belt which is connected with the airbag body and is used for controlling the shape and the direction of the inflated airbag;

3. A child seat airbag protection device according to claim 1, wherein: the air bag body is the enclosure space, including the cavity, the inside of cavity is equipped with at least one first stretching strap, works as the back is aerifyd to the air bag body, shape after first stretching strap restraint air bag aerifys, children's side is kept away from to the air bag body, be equipped with the exhaust hole above the cavity, when children strike to the air bag body, the exhaust hole discharges appropriate amount of gas.

4. A child seat airbag protection device according to claim 1, wherein: the airbag is composed of at least two groups of airbag bodies, and a safety belt lock catch for connection is arranged between the two airbag bodies;

5. A child seat airbag protection device according to claim 2, wherein: the intelligent control device also comprises a circuit board module electrically connected with the power supply module, and a sensor assembly which is connected with the circuit board module, is used for calculating, identifying and judging that a user is in an impact state and gives input information to the inflation unit;

6. A child seat airbag protection device according to claim 5, wherein: the intelligent control device is also used for monitoring whether the seat is in a use state through the pressure sensor, and particularly has no safety belt fastening reminding function;

7. A child seat airbag protection device according to claim 5, wherein: the pressure sensor is connected with the safety belt lock circuit, the pressure sensor and the safety belt lock circuit form a series circuit, if a safety belt is worn, the safety belt lock is connected with a safety belt lock tongue, the connection circuit is opened, and the circuit is disconnected; if the safety belt is not worn, the circuit in the safety belt lock catch is in a closed access state, the circuit is connected for alarming, and the alarming and reminding functions of the unbuckled safety belt are achieved.

8. A child seat airbag protection device according to claim 2, wherein: the inflatable unit adopts a high-pressure gas storage bottle or a mixed gas generator to quickly fill the gas bag with gas instantly;