WO2024027166A1 - 一种儿童汽车安全座椅及安全气囊包 - Google Patents
一种儿童汽车安全座椅及安全气囊包 Download PDFInfo
- Publication number
- WO2024027166A1 WO2024027166A1 PCT/CN2023/082450 CN2023082450W WO2024027166A1 WO 2024027166 A1 WO2024027166 A1 WO 2024027166A1 CN 2023082450 W CN2023082450 W CN 2023082450W WO 2024027166 A1 WO2024027166 A1 WO 2024027166A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- airbag
- pressure gas
- gas bottle
- state
- tether
- Prior art date
Links
- 230000004308 accommodation Effects 0.000 claims abstract 4
- 210000003953 foreskin Anatomy 0.000 claims description 21
- 230000001960 triggered effect Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 description 4
- 208000027418 Wounds and injury Diseases 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 208000014674 injury Diseases 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 206010049244 Ankyloglossia congenital Diseases 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000009916 joint effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
- B60N2/26—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles for children
- B60N2/28—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
Definitions
- the invention belongs to the technical field of children's products, and specifically relates to a child car safety seat and an airbag bag.
- a child car safety seat is a seat specially designed for children. It can be installed in the car and can effectively improve the safety of children in the car.
- children's car safety seats have become one of the must-have items for children's car travel. They can well protect the safety of children while driving and meet their comfort needs while riding.
- the seat body is fixed on the car seat, and children can sit on the seat body and be restrained by the seat belt.
- the child's upper body may still rush forward due to the inertial force caused by the strong impact, and may therefore hit the front seat and cause injury.
- some child car safety seats are equipped with airbag devices.
- the airbag devices are usually installed on both sides of the seat body. When the car is driving normally, the airbag device is in a contracted state and is contained inside the seat body. When the car collides, the airbag device will inflate and rush out to the outside of the seat body to protect the child's body.
- this airbag device still lacks good protection for children's heads, and the inflated airbag device cannot form good support and protection for children's heads.
- the structure of the existing airbag device itself is usually relatively complex, and the installation structure between it and the seat body is also complex and the process is cumbersome.
- An object of the present invention is to provide a child car safety seat with good safety to solve the problems existing in the prior art.
- a child car safety seat including a seat body.
- the seat body is connected with an airbag package for protecting children when the car collides.
- the airbag package includes:
- An airbag foreskin the airbag foreskin has an airbag containing cavity
- a high-pressure gas bottle that stores high-pressure gas.
- the high-pressure gas bottle has a gas outlet.
- the gas outlet of the high-pressure gas bottle has a closed state and an open state. When the gas outlet of the high-pressure gas bottle is in a closed state, High-pressure gas is enclosed in the high-pressure gas bottle. When the gas outlet of the high-pressure gas bottle is in an open state, the high-pressure gas is sprayed out from the gas outlet of the high-pressure gas bottle;
- a high-pressure gas bottle container the high-pressure gas bottle container is placed in the airbag foreskin, and the high-pressure gas bottle is accommodated in the high-pressure gas bottle container;
- the safety airbag has a cavity and an air inlet, and the two are connected to each other, the safety airbag
- the air inlet is connected with the air outlet of the high-pressure gas bottle, and the air inlet of the airbag is fixedly connected to the high-pressure gas bottle container and/or the air outlet of the high-pressure gas bottle.
- the airbag has a folded state and an inflated state. When the airbag is in the folded state, the airbag is at least partially folded and placed in the airbag cover, and the high-pressure airbag The air outlet of the bottle is in a closed state. When the airbag is in an inflated state, the air outlet of the high-pressure gas bottle is in an open state. The high-pressure gas passes through the air outlet of the high-pressure gas bottle.
- the air inlet of the airbag enters the cavity, so that the airbag at least partially breaks through the foreskin of the airbag and enters the outside of the foreskin of the airbag.
- the cross-sectional shape of the airbag is an inverted "C” shape
- one end of the inverted “C” shape of the airbag is the The air inlet of the airbag
- the other end of the reverse "C” shape is fixedly connected to the high-pressure gas cylinder container.
- the reverse "C” shape of the airbag can form good support for children's heads, reduce impact force, and improve safety.
- the airbag bag further includes a first tether, one end of the first tether is connected to the other end of the airbag, and the other end of the first tether is Fixedly connected to the high-pressure gas bottle container. Providing the first tether can ensure that the airbag assumes a reverse "C" shape when inflated, preventing the other end of the airbag from tilting upward.
- the airbag bag further includes a second tether, at least one second tether is provided, and one end of the second tether is fixedly connected to the middle part of the airbag, The other end of the second tether is fixedly connected to the high-pressure gas bottle container; when the airbag is in a folded state, the second tether is located in the airbag skin. , when the airbag is in an inflated state, the second tether is in a tensioned state and is at least partially located outside the airbag skin. Providing the second tether can ensure that the entire airbag has good tensile support when the airbag is in an inflated state.
- the bag cavity includes a first bag cavity and a second bag cavity, one end of the first bag cavity forms the air inlet of the airbag, and one end of the second bag cavity Fixed on the high-pressure gas cylinder container, the other end of the first bladder cavity and the other end of the second bladder cavity are connected through an air flow channel.
- the airbag bag further includes a second tether, at least one of the second tethers is provided, and one end of the second tether is fixedly connected to the outer wall of the airflow channel.
- the other end of the second tether is fixedly connected to the high-pressure gas bottle container; when the airbag is in a folded state, the second tether is located on the In the airbag cover, when the airbag is in an inflated state, the second tether is in a tensioned state and is at least partially located outside the airbag cover.
- the seat body is provided with a safety belt assembly
- the safety belt assembly includes two safety belts respectively provided on the left and right sides.
- the shoulder straps on both sides and the central buckle, the lower part of the central buckle is directly or indirectly connected to the seat body, one end of the shoulder straps on both sides is connected to the seat body, and the lower part of the central buckle is connected to the seat body.
- the other end of the shoulder strap is detachably connected to the central buckle, and the lower part of the high-pressure gas bottle container is arranged at the rear of the central buckle.
- the left and right sides of the upper part of the high-pressure gas cylinder container are respectively provided with matching parts that match the shoulder straps on the corresponding side.
- the two sides The shoulder straps are respectively pressed into the matching portion on the corresponding side, thereby forming a three-point limiting structure for the high-pressure gas bottle container, which can prevent the high-pressure gas bottle container from moving forward when the car collides.
- the airbag is inflated, the distance between it and the child is relatively large, thereby forming good support and protection for the child's head.
- the fitting portion is a guide groove that is concave inward from the front surface of the high-pressure gas cylinder container, the guide groove extends obliquely in the up and down direction, and the two ends of the guide groove in the length direction are respectively Penetrating the corresponding end of the high-pressure gas cylinder container.
- the seat belt assembly further includes a crotch belt, one end of the crotch belt is connected to the seat body, and the other end of the crotch belt is connected to the central buckle, that is, the The central buckle is arranged on the seat body through a soft connection.
- the lower end of the high-pressure gas bottle container is connected to the crotch belt.
- the lower part of the central buckle is rotationally connected to the seat body through a rotating shaft, and the rotating shaft extends in the left and right directions, that is, the central buckle is arranged on the said seat through a rigid connection. on the seat body.
- the airbag when the airbag is in a folded state, at least part of the high-pressure gas bottle container, at least part of the airbag, and at least part of the high-pressure gas bottle are located on the safety side of the airbag cover.
- the airbag containing cavity makes the overall volume of the airbag package smaller and takes up less space.
- the air outlet of the high-pressure gas bottle is in a closed state.
- the air outlet of the high-pressure gas bottle is automatically triggered and is in an open state.
- Another object of the present invention is to provide an airbag package with a simple structure, safety and reliability to solve the problems existing in the prior art.
- An airbag package includes:
- An airbag foreskin the airbag foreskin has an airbag containing cavity
- a high-pressure gas bottle that stores high-pressure gas.
- the high-pressure gas bottle has a gas outlet.
- the gas outlet of the high-pressure gas bottle has a closed state and an open state. When the gas outlet of the high-pressure gas bottle is in a closed state, High-pressure gas is enclosed in the high-pressure gas bottle. When the gas outlet of the high-pressure gas bottle is in an open state, the high-pressure gas is sprayed out from the gas outlet of the high-pressure gas bottle;
- a high-pressure gas bottle container the high-pressure gas bottle container is placed in the airbag foreskin, and the high-pressure gas bottle is accommodated in the high-pressure gas bottle container;
- the safety airbag has an air chamber and an air inlet, and the two are connected to each other, the air inlet of the safety airbag is connected to the air outlet of the high-pressure gas bottle, and the safety airbag
- the air inlet of the airbag is fixedly connected to the high-pressure gas bottle container and/or the air outlet of the high-pressure gas bottle.
- the airbag has a folded state and an inflated state. When the airbag is in a folded state, the airbag is at least partially folded and placed in the airbag cover, and the air outlet of the high-pressure gas bottle is in a closed state. When the airbag is in the inflated state, the airbag is in the inflated state.
- the air outlet of the high-pressure gas bottle is in an open state, and the high-pressure gas enters the airbag cavity from the air outlet of the high-pressure gas bottle through the air inlet of the airbag, so that the airbag at least Partially breaks through the airbag foreskin and enters the outside of the airbag foreskin.
- the cross-sectional shape of the airbag is an inverted “C” shape
- one end of the inverted “C” shape of the airbag is the end of the airbag.
- the air inlet and the other end of the reverse “C” shape of the airbag are fixedly connected to the high-pressure gas cylinder container.
- the reverse "C” shape of the airbag can form good support for children's heads, reduce impact force, and improve safety.
- the airbag bag further includes a first tether, one end of the first tether is connected to the other end of the airbag, and the other end of the first tether is Fixedly connected to the high-pressure gas bottle container. Providing the first tether can ensure that the airbag assumes a reverse "C" shape when inflated, preventing the other end of the airbag from tilting upward.
- the airbag bag further includes a second tether, at least one second tether is provided, and one end of the second tether is fixedly connected to the middle part of the airbag, The other end of the second tether is fixedly connected to the high-pressure gas bottle container; when the airbag is in a folded state, the second tether is located in the airbag skin. , when the airbag is in an inflated state, the second tether is in a tensioned state and is at least partially located outside the airbag skin. Providing the second tether can ensure that the entire airbag has good tensile support when the airbag is in an inflated state.
- the bag cavity includes a first bag cavity and a second bag cavity, one end of the first bag cavity forms the air inlet of the airbag, and one end of the second bag cavity Fixed on the high-pressure gas cylinder container, the other end of the first bladder cavity and the other end of the second bladder cavity are connected through an air flow channel.
- the airbag bag further includes a second tether, at least one of the second tethers is provided, and one end of the second tether is fixedly connected to the outer wall of the airflow channel.
- the other end of the second tether is fixedly connected to the high-pressure gas bottle container; when the airbag is in a folded state, the The second tether is located within the airbag cover.
- the second tether When the airbag is in an inflated state, the second tether is in a tensioned state and is at least partially located outside the airbag cover. Providing the second tether can ensure that the entire airbag has good tensile support when the airbag is in an inflated state.
- the airbag when the airbag is in a folded state, at least part of the high-pressure gas bottle container, at least part of the airbag, and at least part of the high-pressure gas bottle are located on the safety side of the airbag cover.
- the airbag containing cavity makes the overall volume of the airbag package smaller and takes up less space.
- the present invention has the following advantages compared with the prior art:
- the present invention provides an airbag bag on the child car safety seat, and the airbag bag has a simple structure and good stability. When it is in the folded state, the overall structure is compact and takes up less space. When it is in the inflated state, the airbag can protect children. It forms good support and protection for the head, which avoids or reduces injuries to children's heads, further improving safety.
- the installation structure between the airbag bag and the seat body is simple, which improves the convenience of installation.
- Figure 1 is a schematic front view of the child car safety seat when the airbag of this embodiment 1 is in a folded state;
- Figure 2 is a schematic cross-sectional view along line A-A in Figure 1;
- Figure 3 is a schematic top view of the child car safety seat when the airbag of this embodiment 1 is in a folded state;
- Figure 4 is one of the schematic front views of the child car safety seat in Embodiment 1 when the airbag is in an inflated state (two second tethers are arranged crosswise);
- Figure 5 is the second schematic front view of the child car safety seat in Embodiment 1 when the airbag is in an inflated state (two second tethers are arranged in parallel);
- Figure 6 is a schematic cross-sectional view along B-B in Figure 4.
- Figure 7 is a schematic cross-sectional view of the airbag in the folded state according to Embodiment 1;
- Figure 8 is a schematic cross-sectional view of the airbag in Embodiment 1 transitioning from a folded state to an inflated state;
- Figure 9 is a schematic cross-sectional view of the airbag of Embodiment 1 when it is in an inflated state
- Figure 10 is a schematic front view of the airbag in the inflated state according to Embodiment 1;
- Figure 11 is a schematic cross-sectional view of the airbag in the inflated state according to Embodiment 2.
- the directions such as “front”, “rear”, “left”, “right”, “up” and “down” are all referred to the direction in which the seat body faces the forward direction of the car. defined, that is, as shown in Figure 2, the right direction in the figure is “front”, the left direction in the figure is “back”, the upper direction in the figure is “up”, and the lower direction in the figure is “Down”, the directions perpendicular to the viewing angle in the figure are “left” and "right”.
- the definitions of the above directions are only for the convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have specific characteristics. orientation, construction and operation in a specific orientation and therefore cannot be construed as a limitation on the invention.
- a child car safety seat as shown in Figures 1, 3 to 5, includes a seat body 1 and an airbag package 2.
- the seat body 1 is used to be installed on a car seat for children to ride on, and the airbag package 2 Disposed on the seat body 1, the airbag bag 2 can protect the child's body in the event of a car collision.
- the seat body 1 is provided with a seat belt assembly 10, as shown in Figures 1, 4 and 5.
- the seat belt assembly 10 specifically includes a shoulder belt, a crotch belt 103 and a central buckle 104.
- the shoulder belts are respectively provided on the left and right sides. , respectively the left shoulder strap 101 and the right shoulder strap 102.
- the upper end of the left shoulder strap 101 and the upper end of the right shoulder strap 102 are fixedly connected to the left and right sides of the upper part of the seat body 1 respectively.
- the lower end of the crotch belt 103 is connected to the seat body 1 , and the lower end of the crotch belt 103 is located at the crotch of the child.
- the central buckle 104 is connected to the upper end of the crotch strap 103, and the lower ends of the left shoulder strap 101 and the lower end of the right shoulder strap 102 are detachably connected to the central buckle 104.
- the seat belt assembly 10 has a tensioned state and a loosened state.
- the left shoulder strap 101 and the right shoulder strap 102 are respectively connected to the crotch belt 103 through the central buckle 104, and the seat belt assembly 10 is in a tensioned state, thus effectively restraining the child. Safeguard children.
- the airbag bag 2 is disposed on the seat belt assembly 10. Specifically: as shown in Figures 7 to 9, the airbag bag 2 is disposed at the rear of the central buckle 104, and the lower part of the airbag bag 2 is connected to the crotch belt 103 On the other hand, arranging the airbag package 2 on the seat belt assembly 10 can improve the convenience of its installation and use.
- the airbag package 2 is described in detail below:
- the airbag package 2 includes an airbag cover 21, a high-pressure gas cylinder container 22, a high-pressure gas bottle 23 and an airbag 24.
- the airbag cover 21 has an airbag containing cavity 210 inside, and the high-pressure gas cylinder
- the containment body 22 is disposed in the airbag containment cavity 210.
- the high-pressure gas bottle containment body 22 contains a high-pressure gas bottle 23.
- the airbag 24 is connected with the high-pressure gas bottle 23, and the airbag 24 is at least partially located in the airbag containment cavity 210. .
- the high-pressure gas bottle container 22 is provided at the rear of the central buckle 104, and the high-pressure gas bottle container 22 is disposed at the rear of the central buckle 104.
- the lower part of the receiving body 22 is detachably connected to the crotch belt 103.
- the lower part of the high-pressure gas cylinder container 22 and the crotch belt 103 are connected through threads, which has a simple structure and is easy to install.
- High-pressure gas is stored in the high-pressure gas cylinder 23 .
- the high-pressure gas cylinder 23 has an openable and closable air outlet 230, and the air outlet 230 is located on the top of the high-pressure gas bottle 23.
- the air outlet 230 of the high-pressure gas bottle 23 has a closed state and an open state.
- the high-pressure gas cylinder When the high-pressure gas cylinder When the gas outlet 230 of the high-pressure gas bottle 23 is in a closed state, the high-pressure gas is sealed inside the high-pressure gas bottle 23.
- the gas outlet 230 of the high-pressure gas bottle 23 is in an open state, the high-pressure gas can be ejected from the gas outlet 230 of the high-pressure gas bottle 23.
- the airbag 24 is the main component that plays a protective role in the airbag package 2.
- the airbag 24 has a cavity 240 inside, and an air inlet 241 is provided on the airbag 24, and the cavity 240 and the air inlet 241 are mutually exclusive. Connected; the air inlet 241 of the airbag 24 is connected with the air outlet 230 of the high-pressure gas bottle 23, and the air inlet 241 of the airbag 24 is fixedly connected to the high-pressure gas bottle container 22 and/or the air outlet of the high-pressure gas bottle 23 230 on.
- the cystic cavity 240 includes a first cystic cavity 2401 and a second cystic cavity 2402.
- One end of the first cystic cavity 2401 has an opening, that is, one end of the first cystic cavity 2401 forms The air inlet of the airbag 24 is opened, one end of the second bag chamber 2402 is fixed on the high-pressure gas cylinder container 22, and the other ends of the first bag chamber 2401 and the other end of the second bag chamber 2402 pass through the narrow air flow.
- Channel 2403 is connected.
- the air inlet 241 of the airbag 24 is fixedly connected to the high-pressure gas bottle container 22, that is, the opening of one end of the first bag cavity 2401 is fixedly connected to the high-pressure gas bottle container 22, and the first The opening at one end of the bag cavity 2401 covers the air outlet 230 of the high-pressure gas bottle 23 inside, so that the air inlet 241 of the airbag 24 and the air outlet 230 of the high-pressure gas bottle 23 are connected to each other.
- the airbag 24 has a folded state and an inflated state. As shown in Figures 7 to 10, when the airbag 24 is in the folded state, the airbag 24 is at least partially folded and placed in the airbag cover 21, and at this time the high-pressure gas cylinder The air outlet 230 of 23 is closed; when the airbag 24 is in the inflated state, the air outlet 230 of the high-pressure gas bottle 23 is opened, and the high-pressure gas stored in the high-pressure gas bottle 23 passes from the air outlet 230 of the high-pressure gas bottle 23 through the airbag 24
- the air inlet 241 enters the first bag cavity 2401 and enters the second bag cavity 2402 through the air flow channel 2403, causing the airbag 24 to expand as a whole and at least part of the airbag 24 to break through the airbag cover 21 to the outside of the airbag cover 21.
- the airbag 24 when the airbag 24 is in a folded state, at least part of the airbag 24 is located in the airbag receiving cavity 210 , so the overall volume of the airbag package 2 is smaller and takes up less space.
- the airbag 24 when the airbag 24 is in a folded state, the entire airbag 24 is folded and placed in the high-pressure gas cylinder container 22 and above the high-pressure gas cylinder 23 .
- the cross-sectional shape of the airbag 24 along the up and down direction is an inverted “C” shape, and one end of the inverted “C” shape of the airbag 24 is the air inlet of the airbag 24 Opening 241, the other end of the reverse “C” shape of the airbag 24 is fixedly connected to the high-pressure gas cylinder container 22, and the reverse “C” shaped opening of the airbag 24 faces the seat body 1.
- the reverse "C” shaped airbag The middle part of 24 can form good support for children's heads, reduce impact force and improve safety.
- the airbag package 2 also includes a first lace 25 and a second lace 26, as shown in Figure 9 , the first tether 25 and the second tether 26 are used to firmly connect the airbag 24 with the high-pressure gas cylinder container 22 .
- one end of the first tether 25 is fixedly connected to the other end of the airbag 24, the other end of the first tether 25 is fixedly connected to the high-pressure gas cylinder container 22, and the other end of the first tether 25 is fixedly connected to the airbag 24.
- the fixed connection point between one end and the high-pressure gas bottle containing body 22 is located on the outer wall of the high-pressure gas bottle containing body 22 and faces the direction of the seat body 1 .
- One end of the second tether 26 is fixedly connected to the middle part of the airbag 24, and the other end of the second tether 26 is fixedly connected to the high-pressure gas cylinder container 22.
- one end of the second tether 26 The other end of the second tether 26 is fixedly connected to the airbag 24 on the outer wall of the airflow channel 2403.
- the connection point between the other end of the second tether 26 and the high-pressure gas bottle container 22 is located on the inner wall of the high-pressure gas bottle container 22.
- One ends of the two second tethers 26 are fixedly connected to the airbag 24 .
- the middle part and the other end are both fixedly connected to the high-pressure gas cylinder container 22, and the two second laces 26 are intersecting, so that the force on the airbag 24 in the inflated state can be made more uniform to reduce the risk of The amount of side-to-side shaking during collision.
- the two second laces 26 can also be arranged in parallel, as shown in Figure 5 .
- fitting portions 220 are respectively provided on the left and right sides of the upper portion of the high-pressure gas cylinder container 22 , and the fitting portions 220 can respectively match with the shoulder straps on the corresponding side.
- the left shoulder strap 101 and the right shoulder strap 102 are respectively pressed into the matching portion 220 on the corresponding side. rear, therefore, the left shoulder strap 101, the right shoulder strap 102 and the central buckle 104 form a three-point limiting structure for the high-pressure gas cylinder container 22, that is, for the airbag package 2, so that there is always a gap between the airbag package 2 and the child's body. An appropriate distance can be maintained, so that the airbag 24 can form good support and protection for the child's head after being inflated.
- the fitting portion 220 is a guide groove that is concave inward from the front surface of the high-pressure gas cylinder container 22 .
- the guide groove extends obliquely in the up and down direction, and both ends of the guide groove in the length direction respectively pass through the high-pressure gas cylinder.
- the corresponding end of the gas cylinder container 22 is a guide groove that is concave inward from the front surface of the high-pressure gas cylinder container 22 .
- the air from the high-pressure gas cylinder 23 will The opening 230 is in a closed state, and the airbag 24 is in a folded state and is folded and stored in the airbag cover 21 .
- the overall volume is small and does not affect the normal use of the seat belt assembly 10 .
- the seat belt assembly 10 is in a tensioned state, and the left shoulder belt 101 and the right shoulder belt 102 are respectively pressed into the matching portion 220 on the corresponding side of the high-pressure gas cylinder container 22 .
- the gas outlet 230 of the high-pressure gas bottle 23 is automatically triggered and opened, and the high-pressure gas stored in the high-pressure gas bottle 23 enters the bag cavity from the gas outlet 230 of the high-pressure gas bottle 23.
- the airbag 24 begins to expand and breaks through the top of the airbag cover 21, and forms an inverse "C" shape under the joint action of the first tether 25 and the second tether 26, as shown in Figure 9. Due to the cooperation between the left shoulder strap 101 and the right shoulder strap 102 and the high-pressure gas bottle containing body 22, the high-pressure gas bottle containing body 22 can be prevented from driving the airbag 24 to move forward, so that an appropriate distance is maintained between the airbag bag 2 and the child's body. If the child's head tilts forward, it will touch the surface of the airbag 24, which plays a buffering role, which can avoid or reduce the injury to the child's head and further improve safety.
- the central buckle 104 can rotate forward or backward relative to the seat body 1 around the rotating axis 105 .
- the central buckle 104 When the child needs to ride in the child car safety seat, or when the child needs to be taken out of the child car safety seat, the central buckle 104 is rotated forward relative to the seat body 1, so that the central buckle 104 and the seat body 1 are connected.
- the space between the chair bodies 1 is increased to facilitate children to sit in the child car safety seat or to take the child out of the child car safety seat.
- the central buckle 104 When a child rides on the child car safety seat, the central buckle 104 is rotated backward relative to the seat body 1, so that the seat belt assembly 10 is in a tightened state, and at the same time, an appropriate distance is maintained between the airbag package 2 and the child's body. So that when the car collides and the child's head leans forward, it will touch the surface of the airbag 24 and play a buffering role.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Child & Adolescent Psychology (AREA)
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Abstract
一种儿童汽车安全座椅，儿童汽车安全座椅包括座椅本体（1）、设置在座椅本体（1）上的安全气囊包（2），安全气囊包（2）包括安全气囊包皮（21）、高压气瓶（23）、高压气瓶容纳体（22）及安全气囊（24），高压气瓶容纳体（22）置于安全气囊包皮（21）内，高压气瓶（23）置于高压气瓶容纳体（22）内，高压气瓶（23）具有出气口（230），出气口（230）具有闭合状态和打开状态，安全气囊（24）具有嚢腔（240），与高压气瓶（23）出气口（230）连通的进气口（241），安全气囊（24）具有折叠状态和充气状态，折叠状态下安全气囊（24）至少部分被折叠并置于安全气囊包皮（21）内，充气状态下高压气瓶（23）出气口（230）处于打开状态，气体进入嚢腔（240）使安全气囊（24）冲破安全气囊包皮（21）。同时一种安全气囊包被公开，该安全气囊包结构简单，折叠状态下占用空间少，充气状态下可对儿童头部形成良好的支撑和防护，安全性较高。
Description
本发明属于儿童用品技术领域，具体涉及一种儿童汽车安全座椅及安全气囊包。
儿童汽车安全座椅是一种专为儿童设计的座椅，其可安装在汽车内，并能有效提高儿童乘车安全。目前，儿童汽车安全座椅已成为儿童汽车出行时的必备品之一，在行车过程中能够很好地保护乘车儿童的安全，并满足儿童乘坐时的舒适度需要。在使用时，将座椅本体固定在汽车座椅上，儿童可乘坐在座椅本体上并通过安全带束缚。然而，在汽车发生碰撞时，由于强大的冲击力造成的惯性力，儿童的上半身仍会向前冲，因此可能会撞到前排座椅从而造成伤害。
为了提高安全性，部分儿童汽车安全座椅上会设置安全气囊装置，安全气囊装置通常设置在座椅本体的两侧。当汽车正常行驶时，安全气囊装置处于收缩状态并收容于座椅本体的内部，当汽车发生碰撞时，安全气囊装置会充气膨胀并冲出至座椅本体的外部，对儿童的身体形成防护，但是，这种安全气囊装置对于儿童的头部仍缺乏良好的保护，充气膨胀后的安全气囊装置无法对儿童的头部形成良好的支撑和防护。此外，现有的安全气囊装置自身的结构通常较为复杂，且其与座椅本体之间的安装结构也较为复杂，过程繁琐。
发明内容
本发明的一个目的是提供一种安全性好的儿童汽车安全座椅，用于解决现有技术中存在的问题。
为达到上述目的，本发明采用的技术方案是：
一种儿童汽车安全座椅，包括座椅本体，所述的座椅本体上连接有当汽车发生碰撞时用于对儿童进行安全防护的安全气囊包，所述的安全气囊包包括：
安全气囊包皮，所述的安全气囊包皮具有安全气囊容纳腔；
储存有高压气体的高压气瓶，所述的高压气瓶具有出气口，所述的高压气瓶的出气口具有闭合状态和打开状态，当所述的高压气瓶的出气口处于闭合状态时，高压气体被封闭在所述的高压气瓶内，当所述的高压气瓶的出气口处于打开状态时，高压气体从所述的高压气瓶的出气口喷出；
高压气瓶容纳体，所述的高压气瓶容纳体置于所述的安全气囊包皮内，所述的高压气瓶容纳体内容纳有所述的高压气瓶；
安全气囊，所述的安全气囊具有嚢腔、进气口，且两者之间相互连通，所述的安全气囊
的进气口与所述的高压气瓶的出气口连通，且所述的安全气囊的进气口固定连接于所述的高压气瓶容纳体和/或所述的高压气瓶的出气口上，所述的安全气囊具有折叠状态和充气状态，当所述的安全气囊处于折叠状态时，所述的安全气囊至少部分被折叠并置于所述的安全气囊包皮内，且所述的高压气瓶的出气口处于闭合状态，当所述的安全气囊处于充气状态时，所述的高压气瓶的出气口处于打开状态，所述的高压气体从所述的高压气瓶的出气口经所述的安全气囊的进气口进入所述的嚢腔，使所述的安全气囊至少部分冲破所述的安全气囊包皮进入所述的安全气囊包皮外。
优选地，当所述的安全气囊处于充气状态时，所述的安全气囊的截面形状呈反“C”字形，所述的安全气囊的安全气囊的反“C”字形的一端部为所述的安全气囊的进气口，所述的反“C”字型的另一端部固定连接于所述的高压气瓶容纳体上。所述的安全气囊的反“C”字形形状可对儿童的头部形成良好的支撑，降低冲击力，提高安全性。
进一步优选地，所述的安全气囊包还包括第一系带，所述的第一系带的一端部与所述的安全气囊的另一端部连接，所述的第一系带的另一端部固定连接于所述的高压气瓶容纳体上。设置所述的第一系带可保证所述的安全气囊处于充气状态时呈反“C”字形，防止所述的安全气囊的另一端部向上翘起。
进一步优选地，所述的安全气囊包还包括第二系带，所述的第二系带至少设置有一根，所述的第二系带的一端部固定连接于所述的安全气囊的中部，所述的第二系带的另一端部固定连接于所述的高压气瓶容纳体上；当所述的安全气囊处于折叠状态时，所述的第二系带位于所述的安全气囊包皮内，当所述的安全气囊处于充气状态时，所述的第二系带处于张紧状态且至少部分位于所述的安全气囊包皮外。设置所述的第二系带可保证所述的安全气囊处于充气状态时所述的安全气囊整体具有良好的拉力支撑。
一种具体的实施例，所述的第二系带设置有两根，两根所述的第二系带交叉或平行设置。
进一步优选地，所述的囊腔包括第一囊腔、第二囊腔，所述的第一囊腔的一端部形成所述安全气囊的进气口，所述的第二囊腔的一端部固定于所述的高压气瓶容纳体上，所述的第一囊腔的另一端部、第二囊腔的另一端部通过气流通道连通。
更进一步优选地，所述的安全气囊包还包括第二系带，所述的第二系带至少设置有一根，所述的第二系带的一端部固定连接于所述的气流通道外壁的安全气囊上，所述的第二系带的另一端部固定连接于所述的高压气瓶容纳体上；当所述的安全气囊处于折叠状态时，所述的第二系带位于所述的安全气囊包皮内，当所述的安全气囊处于充气状态时，所述的第二系带处于张紧状态且至少部分位于所述的安全气囊包皮外。
优选地，所述的座椅本体上设置有安全带组件，所述安全带组件包括分别设置在左右两
侧的肩带和中央搭扣，所述中央搭扣的下部直接或间接连接在所述座椅本体上，两侧的所述肩带的一端部均与所述座椅本体连接，两侧的所述肩带的另一端部均可拆卸地连接在所述中央搭扣上，所述高压气瓶容纳体的下部设置在所述中央搭扣的后部。
进一步优选地，所述高压气瓶容纳体的上部的左右两侧分别设置有与对应一侧的所述肩带相配合的配合部，当所述安全带组件处于张紧状态时，两侧的所述肩带分别压设在对应一侧的所述配合部中，从而对高压气瓶容纳体形成三点限位的结构，可防止在汽车发生碰撞时高压气瓶容纳体向前运动，使安全气囊充气后与儿童之间的距离较远，从而可对儿童头部形成良好的支撑和防护。
更进一步优选地，所述配合部为自所述高压气瓶容纳体的前表面向内凹的导向槽，所述导向槽沿上下方向倾斜延伸，所述导向槽长度方向上的两端部分别贯穿所述高压气瓶容纳体的对应一端部。
一种具体的实施例，所述安全带组件还包括胯带，所述胯带的一端部与所述座椅本体连接，所述胯带的另一端部与所述中央搭扣连接，即所述的中央搭扣通过软性连接设置在所述的座椅本体上。
优选地，所述高压气瓶容纳体的下端部连接于所述胯带上。
另一种具体的实施例，所述中央搭扣的下部与所述座椅本体之间通过转轴转动连接，所述转轴沿左右方向延伸，即所述的中央搭扣通过硬性连接设置在所述的座椅本体上。
优选地，当所述的安全气囊处于折叠状态时，至少部分所述的高压气瓶容纳体、至少部分所述的安全气囊、至少部分所述的高压气瓶位于所述的安全气囊包皮的安全气囊容纳腔内，使所述的安全气囊包的整体体积较小，占用空间少。
优选地，当汽车正常行驶时，所述的高压气瓶的出气口处于闭合状态，当汽车发生碰撞时，所述的高压气瓶的出气口被自动触发而处于打开状态。
本发明的另一个目的是提供一种结构简单、安全可靠的安全气囊包，用于解决现有技术中存在的问题。
为达到上述目的，本发明采用的技术方案是：
一种安全气囊包，包括：
安全气囊包皮，所述的安全气囊包皮具有安全气囊容纳腔；
储存有高压气体的高压气瓶，所述的高压气瓶具有出气口，所述的高压气瓶的出气口具有闭合状态和打开状态，当所述的高压气瓶的出气口处于闭合状态时，高压气体被封闭在所述的高压气瓶内，当所述的高压气瓶的出气口处于打开状态时，高压气体从所述的高压气瓶的出气口喷出；
高压气瓶容纳体，所述的高压气瓶容纳体置于所述的安全气囊包皮内，所述的高压气瓶容纳体内容纳有所述的高压气瓶；
安全气囊，所述的安全气囊具有嚢腔、进气口，且两者之间相互连通，所述的安全气囊的进气口与所述的高压气瓶的出气口连通，且所述的安全气囊的进气口固定连接于所述的高压气瓶容纳体和/或所述的高压气瓶的出气口上，所述的安全气囊具有折叠状态和充气状态，当所述的安全气囊处于折叠状态时，所述的安全气囊至少部分被折叠并置于所述的安全气囊包皮内，且所述的高压气瓶的出气口处于闭合状态，当所述的安全气囊处于充气状态时，所述的高压气瓶的出气口处于打开状态，所述的高压气体从所述的高压气瓶的出气口经所述的安全气囊的进气口进入所述的嚢腔，使所述的安全气囊至少部分冲破所述的安全气囊包皮进入所述的安全气囊包皮外。
优选地，当所述的安全气囊处于充气状态时，所述的安全气囊的截面形状呈反“C”字形，所述的安全气囊的反“C”字形的一端部为所述的安全气囊的进气口，所述的安全气囊的反“C”字型的另一端部固定连接于所述的高压气瓶容纳体上。所述的安全气囊的反“C”字形形状可对儿童的头部形成良好的支撑，降低冲击力，提高安全性。
进一步优选地，所述的安全气囊包还包括第一系带，所述的第一系带的一端部与所述的安全气囊的另一端部连接，所述的第一系带的另一端部固定连接于所述的高压气瓶容纳体上。设置所述的第一系带可保证所述的安全气囊处于充气状态时呈反“C”字形，防止所述的安全气囊的另一端部向上翘起。
进一步优选地，所述的安全气囊包还包括第二系带，所述的第二系带至少设置有一根，所述的第二系带的一端部固定连接于所述的安全气囊的中部，所述的第二系带的另一端部固定连接于所述的高压气瓶容纳体上；当所述的安全气囊处于折叠状态时，所述的第二系带位于所述的安全气囊包皮内，当所述的安全气囊处于充气状态时，所述的第二系带处于张紧状态且至少部分位于所述的安全气囊包皮外。设置所述的第二系带可保证所述的安全气囊处于充气状态时所述的安全气囊整体具有良好的拉力支撑。
一种具体的实施例，所述的第二系带设置有两根，两根所述的第二系带交叉或平行设置。
进一步优选地，所述的囊腔包括第一囊腔、第二囊腔，所述的第一囊腔的一端部形成所述安全气囊的进气口，所述的第二囊腔的一端部固定于所述的高压气瓶容纳体上，所述的第一囊腔的另一端部、第二囊腔的另一端部通过气流通道连通。
更进一步优选地，所述的安全气囊包还包括第二系带，所述的第二系带至少设置有一根，所述的第二系带的一端部固定连接于所述的气流通道外壁的安全气囊上，所述的第二系带的另一端部固定连接于所述的高压气瓶容纳体上；当所述的安全气囊处于折叠状态时，所述的
第二系带位于所述的安全气囊包皮内，当所述的安全气囊处于充气状态时，所述的第二系带处于张紧状态且至少部分位于所述的安全气囊包皮外。设置所述的第二系带可保证所述的安全气囊处于充气状态时所述的安全气囊整体具有良好的拉力支撑。
优选地，当所述的安全气囊处于折叠状态时，至少部分所述的高压气瓶容纳体、至少部分所述的安全气囊、至少部分所述的高压气瓶位于所述的安全气囊包皮的安全气囊容纳腔内，使所述的安全气囊包的整体体积较小，占用空间少。
由于上述技术方案运用，本发明与现有技术相比具有下列优点：
本发明通过在儿童汽车安全座椅上设置安全气囊包，且安全气囊包的结构简单、稳定性好，处于折叠状态下时整体结构紧凑，占用空间少，处于充气状态下时安全气囊可对儿童的头部形成良好的支撑和防护，避免或减轻了儿童头部受到的伤害，进一步提高了安全性，且安全气囊包与座椅本体之间的安装结构简单，提升了安装的便捷性。
附图1为本实施例1的安全气囊处于折叠状态时儿童汽车安全座椅的主视示意图；
附图2为附图1中A-A的剖视示意图；
附图3为本实施例1的安全气囊处于折叠状态时儿童汽车安全座椅的俯视示意图；
附图4为本实施例1的儿童汽车安全座椅在安全气囊处于充气状态时的主视示意图之一(两根第二系带交叉设置)；
附图5为本实施例1的儿童汽车安全座椅在安全气囊处于充气状态时的主视示意图之二(两根第二系带平行设置)；
附图6为附图4中B-B的剖视示意图；
附图7为本实施例1的安全气囊处于折叠状态时的剖视示意图；
附图8为本实施例1的安全气囊由折叠状态向充气状态转换的剖视示意图；
附图9为本实施例1的安全气囊处于充气状态时的剖视示意图；
附图10为本实施例1的安全气囊处于充气状态时的主视示意图；
附图11为本实施例2的安全气囊处于充气状态时的剖视示意图。
以上附图中：1、座椅本体；10、安全带组件；101、左肩带；102、右肩带；103、胯带；104、中央搭扣；105、转轴；2、安全气囊包；21、安全气囊包皮；210、安全气囊容纳腔；22、高压气瓶容纳体；220、配合部；23、高压气瓶；230、出气口；24、安全气囊；240、囊腔；2401、第一囊腔；2402、第二囊腔；2403、气流通道；241、进气口；25、第一系带；26、第二系带。
下面将结合附图对本发明的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
在本发明的描述中，涉及到的“前”、“后”、“左”、“右”、“上”、“下”等方向，均是以座椅本体面向汽车前行的方向进行参考定义的，即如图2所示，图中的右侧方向为“前”，图中的左侧方向为“后”，图中的上侧方向为“上”，图中的下侧方向为“下”，垂直于图中视角的方向为“左”和“右”，对于上述方向的定义仅仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对发明的限制。
实施例1
一种儿童汽车安全座椅，如图1、图3～图5所示，座椅本体1、安全气囊包2，座椅本体1用于安装在汽车座位上并供儿童乘坐，安全气囊包2设置在座椅本体1上，安全气囊包2可在汽车发生碰撞时对儿童的身体形成防护。
座椅本体1上设置有安全带组件10，如图1、图4和图5所示，安全带组件10具体包括肩带、胯带103以及中央搭扣104，肩带分别设置在左右两侧，分别为左肩带101和右肩带102。左肩带101的上端部、右肩带102的上端部分别固定连接在座椅本体1上部的左右两侧。胯带103的下端部与座椅本体1相连接，且胯带103的下端部位于儿童的裆部位置。中央搭扣104连接在胯带103的上端部，左肩带101的下端部、右肩带102的下端部均可拆卸地连接在中央搭扣104上。
安全带组件10具有张紧状态和松开状态。当儿童乘坐在座椅本体1上时，左肩带101和右肩带102分别与胯带103通过中央搭扣104相互连接，安全带组件10处于张紧状态，从而对儿童形成有效的束缚，以对儿童进行安全保护。
安全气囊包2设置在安全带组件10上，具体地：如图7至图9所示，安全气囊包2设置在中央搭扣104的后部，且安全气囊包2的下部连接在胯带103上，将安全气囊包2设置在安全带组件10上可提高其安装和使用的便捷性。
以下具体对安全气囊包2做详细描述：
如图7至图10所示，安全气囊包2包括安全气囊包皮21、高压气瓶容纳体22、高压气瓶23以及安全气囊24，安全气囊包皮21内部具有安全气囊容纳腔210，高压气瓶容纳体22设置在安全气囊容纳腔210内，高压气瓶容纳体22内容纳有高压气瓶23，安全气囊24与高压气瓶23相连通，且安全气囊24至少部分位于安全气囊容纳腔210内。
具体而言：如图7所示，高压气瓶容纳体22设置在中央搭扣104的后部，且高压气瓶容
纳体22的下部可拆卸地连接在胯带103上。在本实施例中：高压气瓶容纳体22的下部与胯带103之间通过螺纹连接，结构简单，便于安装。
高压气瓶23内存储有高压气体。如图7所示，高压气瓶23具有可开闭的出气口230，且出气口230位于高压气瓶23的顶部，高压气瓶23的出气口230具有闭合状态和打开状态，当高压气瓶23的出气口230处于闭合状态时，高压气体被封闭在高压气瓶23内部，当高压气瓶23的出气口230处于打开状态时，高压气体可从高压气瓶23的出气口230喷出。
安全气囊24是安全气囊包2中起到防护作用的主要部件，安全气囊24的内部具有嚢腔240，安全气囊24上开设有进气口241，且嚢腔240与进气口241之间相互连通；安全气囊24的进气口241与高压气瓶23的出气口230连通，且安全气囊24的进气口241固定连接在高压气瓶容纳体22上和/或高压气瓶23的出气口230上。具体而言：如图8和图9所示，囊腔240包括第一囊腔2401、第二囊腔2402，第一囊腔2401的一端部具有开口，即第一囊腔2401的一端部形成了安全气囊24的进气口，第二囊腔2402的一端部固定于高压气瓶容纳体22上，第一囊腔2401的另一端部、第二囊腔2402的另一端部通过狭窄的气流通道2403相连通。在本实施例中：安全气囊24的进气口241固定连接在高压气瓶容纳体22上，即第一囊腔2401的一端部的开口固定连接在高压气瓶容纳体22上，且第一囊腔2401的一端部的开口将高压气瓶23的出气口230包覆在其内部，使安全气囊24的进气口241与高压气瓶23的出气口230之间相互连通。
安全气囊24具有折叠状态和充气状态，如图7至图10所示，当安全气囊24处于折叠状态时，安全气囊24至少部分被折叠并置于安全气囊包皮21内，且此时高压气瓶23的出气口230闭合；当安全气囊24处于充气状态时，高压气瓶23的出气口230打开，存储在高压气瓶23内的高压气体从高压气瓶23的出气口230经安全气囊24的进气口241进入第一囊腔2401并经气流通道2403进入第二囊腔2402内，使安全气囊24整体膨胀且至少部分安全气囊24冲破安全气囊包皮21至安全气囊包皮21外部。
具体而言：当安全气囊24处于折叠状态时，至少部分安全气囊24位于安全气囊容纳腔210内，因此安全气囊包2的整体体积较小，占用空间少。在本实施例中：如图7所示，当安全气囊24处于折叠状态时，安全气囊24整体被折叠并置于高压气瓶容纳体22内，且位于高压气瓶23的上方。
当安全气囊24处于充气状态时，如图9所示，安全气囊24沿上下方向的截面形状呈反“C”字形，安全气囊24的反“C”字形的一端部为安全气囊24的进气口241，安全气囊24的反“C”字型的另一端部固定连接在高压气瓶容纳体22上，安全气囊24的反“C”字型的开口朝向座椅本体1，当汽车发生碰撞导致儿童的头部向前冲时，反“C”字型的安全气囊
24的中部可对儿童的头部形成良好的支撑，降低冲击力，提高安全性。
为了保证安全气囊24在充气状态时可形成反“C”字形，且反“C”字形的结构稳定，安全气囊包2还包括第一系带25、第二系带26，如图9所示，第一系带25和第二系带26用于将安全气囊24与高压气瓶容纳体22固定连接。
具体而言：第一系带25的一端部与安全气囊24的另一端部固定连接，第一系带25的另一端部固定连接在高压气瓶容纳体22上，第一系带25的另一端部与高压气瓶容纳体22的固定连接点位于高压气瓶容纳体22的外壁上，且朝向座椅本体1的方向。通过设置第一系带25可保证安全气囊24在充气状态时呈反“C”字形，防止安全气囊24的另一端部在充气后向上翘起。
第二系带26的一端部固定连接在安全气囊24的中部，第二系带26的另一端部固定连接在高压气瓶容纳体22上，在本实施例中：第二系带26的一端部固定连接在气流通道2403外壁的安全气囊24上，第二系带26的另一端部与高压气瓶容纳体22的连接点位于高压气瓶容纳体22的内壁上。第二系带26至少设置有一根，在本实施例中：如图4所示，第二系带26设置有两根，两根第二系带26的一端部均固定连接在安全气囊24的中部，另一端部均固定连接在高压气瓶容纳体22上，且两根第二系带26之间呈交叉状，这样可以使得安全气囊24在充气状态时的受力更加均匀，以减小碰撞时的左右晃动量。当然，也可使两根第二系带26平行设置，如图5所示。当安全气囊24处于折叠状态时，第二系带26位于安全气囊包皮21内，且第二系带26处于松弛状态；当安全气囊24处于充气状态时，第二系带26处于张紧状态，且第二系带24的上部位于安全气囊包皮21外。通过设置第二系带26可保证安全气囊24处于充气状态时安全气囊24整体具有良好的拉力支撑，提高安全性。
如图10所示，高压气瓶容纳体22的上部的左右两侧分别设置有配合部220，该配合部220可分别与对应一侧的肩带相配合。当安全带组件10处于张紧状态时，左肩带101和右肩带102分别压设在对应一侧的配合部220中，同时，由于高压气瓶容纳体22的下部设置在中央搭扣104的后部，因此，通过左肩带101、右肩带102及中央搭扣104对高压气瓶容纳体22即对安全气囊包2形成三点限位结构，使得安全气囊包2与儿童身体之间始终能够保持适当距离，使得安全气囊24充气后可对儿童头部形成良好的支撑和防护。
具体的，如图10所示，配合部220为自高压气瓶容纳体22的前表面向内凹的导向槽，导向槽沿上下方向倾斜延伸，导向槽长度方向上的两端部分别贯穿高压气瓶容纳体22的对应一端部。
以下具体阐述下本实施例的安全气囊包2的工作过程：
如图7所示，当汽车在正常行驶时，儿童乘坐在座椅本体1上，此时高压气瓶23的出气
口230处于闭合状态，安全气囊24处于折叠状态并被折叠收纳在安全气囊包皮21内，整体体积较小，不影响安全带组件10的正常使用。此时，安全带组件10处于张紧状态，左肩带101和右肩带102分别压设在高压气瓶容纳体22对应一侧的配合部220中。
如图8所示，当汽车发生碰撞时，高压气瓶23的出气口230被自动触发而处于打开状态，存储在高压气瓶23内的高压气体从高压气瓶23的出气口230进入囊腔240内，使安全气囊24开始膨胀并冲破安全气囊包皮21的顶部，并在第一系带25和第二系带26的共同作用下形成反“C”字形，如图9所示。由于左肩带101和右肩带102与高压气瓶容纳体22的配合，可避免高压气瓶容纳体22带动安全气囊24向前运动，使得安全气囊包2与儿童身体之间保持适当距离，此时若儿童的头部前倾则会触碰到安全气囊24的表面，起到缓冲作用，可避免或减轻儿童头部受到的伤害，进一步提高安全性。
实施例2
该实施例中，安全带组件10中无胯带103，中央搭扣104的下部与座椅本体1之间通过转轴105转动连接，转轴105沿左右方向延伸。这样，中央搭扣104可绕转轴105相对座椅本体1向前或向后转动。
当儿童需要乘坐在儿童汽车安全座椅内时，或者需要将儿童从儿童汽车安全座椅内抱出时，使中央搭扣104相对座椅本体1向前转动，从而使中央搭扣104和座椅本体1之间的空间增大，以便于儿童乘坐在儿童汽车安全座椅内，或者将儿童从儿童汽车安全座椅内抱出。
当儿童乘坐在儿童汽车安全座椅后，使中央搭扣104相对座椅本体1向后转动，使安全带组件10处于收紧状态，同时使得安全气囊包2与儿童身体之间保持适当距离，以使得在汽车发生碰撞、儿童的头部前倾时会触碰到安全气囊24的表面，起到缓冲作用。
上述实施例只为说明本发明的技术构思及特点，其目的在于让熟悉此项技术的人士能够了解本发明的内容并据以实施，并不能以此限制本发明的保护范围。凡根据本发明精神实质所作的等效变化或修饰，都应涵盖在本发明的保护范围之内。
Claims (23)
- 一种儿童汽车安全座椅，包括座椅本体，所述的座椅本体上连接有当汽车发生碰撞时用于对儿童进行安全防护的安全气囊包，其特征在于，所述的安全气囊包包括：安全气囊包皮，所述的安全气囊包皮具有安全气囊容纳腔；储存有高压气体的高压气瓶，所述的高压气瓶具有出气口，所述的高压气瓶的出气口具有闭合状态和打开状态，当所述的高压气瓶的出气口处于闭合状态时，高压气体被封闭在所述的高压气瓶内，当所述的高压气瓶的出气口处于打开状态时，高压气体从所述的高压气瓶的出气口喷出；高压气瓶容纳体，所述的高压气瓶容纳体置于所述的安全气囊包皮内，所述的高压气瓶容纳体内容纳有所述的高压气瓶；安全气囊，所述的安全气囊具有嚢腔、进气口，且两者之间相互连通，所述的安全气囊的进气口与所述的高压气瓶的出气口连通，且所述的安全气囊的进气口固定连接于所述的高压气瓶容纳体和/或所述的高压气瓶的出气口上，所述的安全气囊具有折叠状态和充气状态，当所述的安全气囊处于折叠状态时，所述的安全气囊至少部分被折叠并置于所述的安全气囊包皮内，且所述的高压气瓶的出气口处于闭合状态，当所述的安全气囊处于充气状态时，所述的高压气瓶的出气口处于打开状态，所述的高压气体从所述的高压气瓶的出气口经所述的安全气囊的进气口进入所述的嚢腔，使所述的安全气囊至少部分冲破所述的安全气囊包皮进入所述的安全气囊包皮外。
- 根据权利要求1所述的儿童汽车安全座椅，其特征在于：当所述的安全气囊处于充气状态时，所述的安全气囊的截面形状呈反“C”字形，所述的安全气囊的反“C”字形的一端部为所述的安全气囊的进气口，所述的安全气囊的反“C”字型的另一端部固定连接于所述的高压气瓶容纳体上。
- 根据权利要求2所述的儿童汽车安全座椅，其特征在于：所述的安全气囊包还包括第一系带，所述的第一系带的一端部与所述的安全气囊的另一端部连接，所述的第一系带的另一端部固定连接于所述的高压气瓶容纳体上。
- 根据权利要求2所述的儿童汽车安全座椅，其特征在于：所述的安全气囊包还包括第二系带，所述的第二系带至少设置有一根，所述的第二系带的一端部固定连接于所述的安全气囊的中部，所述的第二系带的另一端部固定连接于所述的高压气瓶容纳体上；当所述的安全气囊处于折叠状态时，所述的第二系带位于所述的安全气囊包皮内，当所述的安全气囊处于充气状态时，所述的第二系带处于张紧状态且至少部分位于所述的安全气囊包皮外。
- 根据权利要求4所述儿童汽车安全座椅，其特征在于：所述的第二系带设置有两根，两根所述的第二系带交叉或平行设置。
- 根据权利要求2所述的儿童汽车安全座椅，其特征在于：所述的囊腔包括第一囊腔、第二囊腔，所述的第一囊腔的一端部形成所述安全气囊的进气口，所述的第二囊腔的一端部固定于所述的高压气瓶容纳体上，所述的第一囊腔的另一端部、第二囊腔的另一端部通过气流通道连通。
- 根据权利要求6所述的儿童汽车安全座椅，其特征在于：所述的安全气囊包还包括第二系带，所述的第二系带至少设置有一根，所述的第二系带的一端部固定连接于所述的气流通道外壁的安全气囊上，所述的第二系带的另一端部固定连接于所述的高压气瓶容纳体上；当所述的安全气囊处于折叠状态时，所述的第二系带位于所述的安全气囊包皮内，当所述的安全气囊处于充气状态时，所述的第二系带处于张紧状态且至少部分位于所述的安全气囊包皮外。
- 根据权利要求1所述的儿童汽车安全座椅，其特征在于：所述的座椅本体上设置有安全带组件，所述安全带组件包括分别设置在左右两侧的肩带和中央搭扣，所述中央搭扣的下部直接或间接连接在所述座椅本体上，两侧的所述肩带的一端部均与所述座椅本体连接，两侧的所述肩带的另一端部均可拆卸地连接在所述中央搭扣上，所述高压气瓶容纳体的下部设置在所述中央搭扣的后部。
- 根据权利要求8所述的儿童汽车安全座椅，其特征在于：所述高压气瓶容纳体的上部的左右两侧分别设置有与对应一侧的所述肩带相配合的配合部，当所述安全带组件处于张紧状态时，两侧的所述肩带分别压设在对应一侧的所述配合部中。
- 根据权利要求9所述儿童汽车安全座椅，其特征在于：所述配合部为自所述高压气瓶容纳体的前表面向内凹的导向槽，所述导向槽沿上下方向倾斜延伸，所述导向槽长度方向上的两端部分别贯穿所述高压气瓶容纳体的对应一端部。
- 根据权利要求8所述儿童汽车安全座椅，其特征在于：所述安全带组件还包括胯带，所述胯带的一端部与所述座椅本体连接，所述胯带的另一端部与所述中央搭扣连接。
- 根据权利要求11所述儿童汽车安全座椅，其特征在于：所述高压气瓶容纳体的下端部连接于所述胯带上。
- 根据权利要求8所述儿童汽车安全座椅，其特征在于：所述中央搭扣的下部与所述座椅本体之间通过转轴转动连接，所述转轴沿左右方向延伸。
- 根据权利要求1所述的儿童汽车安全座椅，其特征在于：当所述的安全气囊处于折叠状态时，至少部分所述的高压气瓶容纳体、至少部分所述的安全气囊、至少部分所述的高压气瓶位于所述的安全气囊包皮的安全气囊容纳腔内。
- 根据权利要求1所述的儿童汽车安全座椅，其特征在于：当汽车正常行驶时，所述 的高压气瓶的出气口处于闭合状态，当汽车发生碰撞时，所述的高压气瓶的出气口被自动触发而处于打开状态。
- 一种安全气囊包，其特征在于，包括：安全气囊包皮，所述的安全气囊包皮具有安全气囊容纳腔；储存有高压气体的高压气瓶，所述的高压气瓶具有出气口，所述的高压气瓶的出气口具有闭合状态和打开状态，当所述的高压气瓶的出气口处于闭合状态时，高压气体被封闭在所述的高压气瓶内，当所述的高压气瓶的出气口处于打开状态时，高压气体从所述的高压气瓶的出气口喷出；高压气瓶容纳体，所述的高压气瓶容纳体置于所述的安全气囊包皮内，所述的高压气瓶容纳体内容纳有所述的高压气瓶；安全气囊，所述的安全气囊具有嚢腔、进气口，且两者之间相互连通，所述的安全气囊的进气口与所述的高压气瓶的出气口连通，且所述的安全气囊的进气口固定连接于所述的高压气瓶容纳体和/或所述的高压气瓶的出气口上，所述的安全气囊具有折叠状态和充气状态，当所述的安全气囊处于折叠状态时，所述的安全气囊至少部分被折叠并置于所述的安全气囊包皮内，且所述的高压气瓶的出气口处于闭合状态，当所述的安全气囊处于充气状态时，所述的高压气瓶的出气口处于打开状态，所述的高压气体从所述的高压气瓶的出气口经所述的安全气囊的进气口进入所述的嚢腔，使所述的安全气囊至少部分冲破所述的安全气囊包皮进入所述的安全气囊包皮外。
- 根据权利要求16所述的安全气囊包，其特征在于：当所述的安全气囊处于充气状态时，所述的安全气囊的截面形状呈反“C”字形，所述的安全气囊的反“C”字形的一端部为所述的安全气囊的进气口，所述的安全气囊的反“C”字型的另一端部固定连接于所述的高压气瓶容纳体上。
- 根据权利要求17所述的安全气囊包，其特征在于：所述的安全气囊包还包括第一系带，所述的第一系带的一端部与所述的安全气囊的另一端部连接，所述的第一系带的另一端部固定连接于所述的高压气瓶容纳体上。
- 根据权利要求17所述的安全气囊包，其特征在于：所述的安全气囊包还包括第二系带，所述的第二系带至少设置有一根，所述的第二系带的一端部固定连接于所述的安全气囊的中部，所述的第二系带的另一端部固定连接于所述的高压气瓶容纳体上；当所述的安全气囊处于折叠状态时，所述的第二系带位于所述的安全气囊包皮内，当所述的安全气囊处于充气状态时，所述的第二系带处于张紧状态且至少部分位于所述的安全气囊包皮外。
- 根据权利要求19所述的安全气囊包，其特征在于：所述的第二系带设置有两根，两 根所述的第二系带交叉或平行设置。
- 根据权利要求17所述的儿童汽车安全座椅，其特征在于：所述的囊腔包括第一囊腔、第二囊腔，所述的第一囊腔的一端部形成所述安全气囊的进气口，所述的第二囊腔的一端部固定于所述的高压气瓶容纳体上，所述的第一囊腔的另一端部、第二囊腔的另一端部通过气流通道连通。
- 根据权利要求21所述的安全气囊包，其特征在于：所述的安全气囊包还包括第二系带，所述的第二系带至少设置有一根，所述的第二系带的一端部固定连接于所述的气流通道外壁的安全气囊上，所述的第二系带的另一端部固定连接于所述的高压气瓶容纳体上；当所述的安全气囊处于折叠状态时，所述的第二系带位于所述的安全气囊包皮内，当所述的安全气囊处于充气状态时，所述的第二系带处于张紧状态且至少部分位于所述的安全气囊包皮外。
- 根据权利要求16所述的安全气囊包，其特征在于：当所述的安全气囊处于折叠状态时，至少部分所述的高压气瓶容纳体、至少部分所述的安全气囊、至少部分所述的高压气瓶位于所述的安全气囊包皮的安全气囊容纳腔内。
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