Child car seat with additional safety protection device

Abstract

The present invention discloses a child car seat with an additional safety protection device, comprising a car seat body for a passenger to sit on, the safety protection device comprising a mounting base mounted on the car seat body and an airbag body disposed on the mounting base, wherein the inflated airbag body extends upward from the mounting base and is positioned in front of the passenger's body. When a car collides, the airbag body can rapidly inflate and deploy and be positioned in front of the passenger's body and below the passenger's head, so that when the passenger's head swings forward due to the impact, it will hit the elastic inflatable air cushion, thereby effectively protecting the passenger's head and neck. At the same time, the airbag body can also limit the forward displacement of the passenger's body after inflation, thereby protecting the child and preventing injury to the child due to strong impact.

Description

Technical Field

[0001] The invention relates to a child car seat with an additional safety protection device. Background Art

[0002] Child car seats are widely used to ensure child safety while riding in a vehicle. When in use, the child car seat is securely mounted on the vehicle seat, with the child seated and restrained by a safety belt assembly. However, in an actual collision, the child's body will still lean forward due to the inertial force created by the strong impact. This can cause significant pressure on the child's body due to the restraining force of the restraint belt, potentially resulting in injury. Furthermore, the excessive forward movement of the child's body can cause the child to collide with other objects in the vehicle, potentially injuring the child.

[0003] In response to this, some child car seats are currently equipped with airbags so that when a collision occurs, the airbags will inflate and protect the child. However, no relevant car seats are currently available on the market, and the location and working method of the airbags also affect the safety and protective effect of the airbags when protecting children to a certain extent. Summary of the Invention

[0004] The purpose of the present invention is to provide a child car seat with an additional safety protection device to provide safety protection for children when riding in the car.

[0005] To achieve the above-mentioned objectives, the technical solution adopted by the present invention is: a child car seat with an additional safety protection device, comprising a car seat body for a passenger to sit on, the safety protection device comprising a mounting base mounted on the car seat body and an airbag body provided on the mounting base, wherein the mounting base is detachably or rotatably connected to the car seat body, and the inflated airbag body extends upward from the mounting base and is positioned in front of the passenger's body, and / or extends downward and is positioned above the passenger's legs.

[0006] Preferably, the mounting base is a U-shaped mounting frame with its opening facing backward, and the rear ends of both sides of the mounting frame are pivotally connected to the left and right sides of the car seat body, or are detachably connected to the left and right sides of the car seat body.

[0007] Furthermore, the airbag body is arranged at the front of the mounting frame, and the inflated airbag body extends upward from the mounting frame and is blocked in front of the chest and under the head of the passenger.

[0008] Furthermore, the airbag body is arranged at the front of the mounting frame, and the inflated airbag body extends upward from the mounting frame to form a first airbag body blocked between the chest and the bottom of the head of the passenger, and the airbag body extends downward from the mounting frame to form a second airbag body blocked between the mounting frame and the legs of the passenger.

[0009] Furthermore, the bag cavities of the first airbag body and the second airbag body are arranged to be communicated, and the front part of the mounting frame is provided with a receiving groove which penetrates in the up-down direction and is used to receive the uninflated airbag body.

[0010] Furthermore, the safety protection device also includes a gas generator connected to the airbag body and inflating the airbag body, and the gas generator is arranged in the mounting frame.

[0011] Furthermore, the safety protection device also includes a gas generator connected to the airbag body and inflating the airbag body, and the gas generator is arranged on the car seat body.

[0012] Preferably, the mounting base is a bracket mounted on one side of the car seat body, the rear portion of the bracket is connected to the left or right side of the car seat body, the front portion of the bracket is located in front of the passenger and the airbag body is provided on the front portion of the bracket.

[0013] Furthermore, there are two brackets, and the rear portions of the two brackets are respectively connected to the left and right sides of the car seat body, and the two brackets cooperate to form a U-shaped frame that blocks the front side of the passenger's body.

[0014] Preferably, the safety protection device also includes an electronic detection device and a mechanical inflation device. The electronic detection device is provided with a threshold value g1 for triggering the mechanical inflation device. The electronic detection device is used to detect the acceleration g2 value of the car. When it is detected that the g2 value is greater than or equal to the g1 value, the electronic detection device triggers the mechanical inflation device to start and inflate the airbag body.

[0015] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art: the child car seat of the present invention forms an additional safety protection device by adding a mounting base to the car seat body and arranging an inflatable airbag body thereon. When the car collides, the airbag body can quickly inflate and deploy and block in front of the passenger's body and under the passenger's head, so that when the passenger's head swings forward due to the impact, it is the elastic inflatable air cushion that hits, thereby effectively protecting the passenger's head and neck; at the same time, the airbag body can also limit the forward displacement of the passenger's body after inflation and deployment, thereby protecting the child and avoiding injury to the child due to strong impact. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Attachment Figure 1 A side view of the child car seat of Example 1 Figure 1 , wherein the airbag body is not inflated;

[0017] Attachment Figure 2 A side view of the child car seat of Example 1 Figure 2 , wherein the airbag body is not inflated;

[0018] Attachment Figure 3 A side view of the child car seat of Example 1 Figure 3 , wherein the airbag body is inflated and deployed;

[0019] Attachment Figure 4 is a schematic front view of the child car seat of Example 2, wherein the airbag body is not inflated;

[0020] Attachment Figure 5 FIG2 is a schematic top view of the child car seat of Example 2, wherein the airbag body is not inflated;

[0021] Attachment Figure 6 is a side cross-sectional schematic diagram of the child car seat of Example 2, wherein the airbag body is inflated and deployed;

[0022] Attachment Figure 7 It is a structural diagram of the connection between the gas generator and the airbag body;

[0023] Attachment Figure 8 Schematic diagram of the structure of the gas generator;

[0024] Attachment Figure 9 This is a schematic diagram of the working and control principles of the mechanical inflation device and the electronic detection device;

[0025] Wherein: 1. Car seat body; 11. Seat; 2. Safety belt assembly; 3. Support leg; 4. Airbag body; 41. First airbag body; 42. Second airbag body; 5. Gas generator; 51. Generator body; 52. Connecting end; 53. Gas outlet; 54. Signal input end; 6. Connecting pipe; 7. Sitting and standing detection device; 8. Electronic detection device;

[0026] 10. Passenger; 20. Mounting frame; 201. Rotating joint. DETAILED DESCRIPTION

[0027] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0028] See also Figures 1 to 6 The child car seat shown includes a car seat body 1 for seating a passenger 10, a safety belt assembly 2 for restraining the passenger 10 to the car seat body 1, and a support leg 3 supported between the front portion of the car seat body 1 and the vehicle floor in front of the child car seat. The car seat body 1 includes at least a seat 11 for supporting the passenger 10. The child passenger 10 sits on the seat 11 and is restrained and secured by the safety belt assembly 2.

[0029] This child car seat is equipped with a safety protection device to protect the occupant 10 in the event of a collision or impact, minimizing or preventing injury to the occupant. The safety protection device includes a mounting base mounted on the car seat body 1 and an airbag body 4 disposed on the mounting base. The mounting base is detachably or rotatably connected to the car seat body 1 and extends forward from the rear of the car seat body 1. The airbag body 4 is disposed in front of the mounting base. When inflated, the airbag body 4 can extend upward from the mounting base and be positioned in front of the occupant 10.

[0030] The following describes the configuration and working principle of the mounting base and the airbag body 4 in conjunction with specific embodiments.

[0031] Example 1

[0032] See also Figures 1 to 3 As shown, in this embodiment, the mounting base is a U-shaped mounting frame 20 with its opening facing backwards, and the left and right ends of the rear portion of the mounting frame 20 are rotatably connected to the left and right sides of the car seat body 1 through rotating joints 201. Figure 1 As shown, before the passenger 10 takes the seat, the mounting frame 20 is in an upright position and is located behind the passenger 10. After the passenger 10 takes the seat and is restrained and fixed by the safety belt assembly 2, the mounting frame 20 flips forward and downward and is located on both sides of the passenger 10 and in front of the body.

[0033] The airbag body 4 is arranged at the front of the mounting frame 20, see Figure 3 As shown, the inflated airbag body 4 extends upward from the mounting frame 20 to form a first airbag body 41 positioned between the chest and underside of the head of the occupant 10. The airbag body 4 also extends downward from the mounting frame 20 to form a second airbag body 42 positioned between the mounting frame 20 and the legs of the occupant 10. As the first and second airbag bodies 41, 42 extend upward and downward, they simultaneously expand in the left-right direction of the car seat body 1 to form a certain width, positioning them in front of the occupant 10. As they extend in the left-right direction, the first and second airbag bodies 41, 42 each form a C-shaped structure with its opening facing rearward.

[0034] The front portion of the mounting frame 20 has a receiving slot for the uninflated airbag body 4. This slot has upward and downward notches. The cavities of the first and second airbag bodies 41, 42 are interconnected, and the slot extends vertically through the mounting frame 20. When the airbag body 4 inflates, the first and second airbag bodies 41, 42 extend upward and downward from the slots, respectively.

[0035] In this way, when the car encounters a collision, the airbag body 4 is inflated at the moment of collision, so that the first airbag body 41 and the second airbag body 42 expand and unfold respectively. In this way, on the one hand, when the head of the passenger 10 swings forward due to the impact, it hits the elastic inflatable air cushion (that is, the inflated first airbag body 41), thereby effectively protecting the head and neck of the passenger 10; on the other hand, the inflated second airbag body 42 can be blocked between the lower part of the mounting frame 20 and the legs of the passenger 10, thereby limiting the forward displacement of the passenger 10, further reducing or avoiding damage to the passenger 10 when the car encounters a huge impact.

[0036] Example 2

[0037] See also Figures 4 to 6 As shown, the main difference between this embodiment and embodiment 1 lies in the arrangement of the mounting bracket 20 and the arrangement of the airbag body 4, specifically:

[0038] In this embodiment, the mounting base is also a U-shaped mounting frame 20 with an opening facing rearward. The left and right ends of the rear portion of the mounting frame 20 are detachably connected to the left and right sides of the car seat body 1, respectively. When the occupant 10 is seated and restrained by the safety belt assembly 2, the mounting frame 20 is installed and connected to the car seat body 1 so that it blocks the sides and front of the occupant 10's body.

[0039] The airbag body 4 is arranged at the front of the mounting frame 20, see Figure 6As shown, the inflated airbag body 4 extends upward from the mounting frame 20 to block the chest and head of the occupant 10. As the airbag body 4 extends upward, it also extends left and right along the car seat body 1 to form a C-shaped structure with an opening facing rearward, thereby blocking the front of the occupant 10.

[0040] In this way, when the car encounters a collision, the airbag body 4 is inflated at the moment of collision, rapidly expanding and deploying between the top of the mounting frame 20 and the bottom of the head of the occupant 10, so that when the head of the occupant 10 swings forward due to the impact, it hits the elastic inflatable air cushion, thereby effectively protecting the head and neck of the occupant 10, avoiding or reducing the damage to the occupant 10 caused by a huge impact of the car.

[0041] Example 3

[0042] Although not shown, the mounting base is a bracket mounted on one side of the car seat body 1. The rear portion of the bracket is connected to the left or right side of the car seat body 1. The front portion of the bracket is located in front of the passenger 10, and the airbag body 4 is mounted on the front portion of the bracket. The bracket can be configured in an L-shape with a certain curvature.

[0043] Example 4

[0044] (Not shown in the figure, the mounting base comprises two brackets mounted on the left and right sides of the car seat body 1. The rear portions of the two brackets are detachably or rotatably connected to the left and right sides of the car seat body 1, respectively, with the front portions of the two brackets positioned in front of the occupant 10. The airbag body 4 is located on the front portion of one bracket, or one airbag body 4 is located in front of each bracket. Here, both brackets are also configured in an L-shape with a certain curvature, and the two brackets cooperate to form a U-shaped frame that blocks the front of the occupant 10.

[0045] In the above embodiments, the safety protection device further includes an electronic detection device 8 and a mechanical inflation device 5. Figure 9 As shown, the electronic detection device 8 is provided with a threshold value g1 for triggering the mechanical inflation device 5. The electronic detection device 8 is used to detect the acceleration g2 value of the car. When the g2 value detected by the electronic detection device 8 is greater than or equal to the above-mentioned g1 value, it indicates that an accident has occurred in the car. The electronic detection device 8 triggers the mechanical inflation device 5 to start and quickly inflate the airbag body 4.

[0046] See also Figure 7 、 Figure 8As shown, in this embodiment, the mechanical inflation device 5 is a gas generator 5. This gas generator 5 can be mounted on a mounting base, such as the mounting bracket 20 of Embodiments 1 and 2, or on the vehicle seat body 1. The gas outlet of the gas generator 5 is connected to the gas inlet of the airbag body 4 via a connecting pipe 6. When the gas generator 5 is triggered, it rapidly inflates the airbag body 4.

[0047] Specifically, if Figure 8 As shown, the gas generator 5 comprises a generator body 51, a cylindrical connecting end 52 at one axial end of the generator body 51, and a signal input end 54 at the other axial end of the generator body 52. ​​The gas generator 5 has an outlet 53 located on the side of the connecting end 52. A pipe joint (not shown) is fixedly provided at the air inlet of the airbag body 4. One end of the connecting pipe 6 is connected to the pipe joint, and the other end is sleeved on the connecting end 52 and covered on the outside of the gas outlet 53. The signal input end 54 of the gas generator 5 is used for signal connection with the electronic detection device 8.

[0048] See also Figure 9 As shown, the safety protection device also includes a sitting detection device 7 for detecting whether an occupant 10 is sitting on the vehicle seat body 1. The sitting detection device 7 is signal-connected to an electronic detection device 8. Upon detecting that an occupant 10 is sitting on the vehicle seat body 1, the sitting detection device 7 transmits a sitting detection signal to the electronic detection device 8. The electronic detection device 8 has a dormant operating state and a detection operating state. When the electronic detection device 8 does not receive a sitting detection signal from the sitting detection device 7, it enters the dormant state. Upon receiving a sitting detection signal from the sitting detection device 7, the electronic detection device 8 is triggered and switches from the dormant state to the detection operating state, in which it detects the vehicle's real-time acceleration value g2 and compares it with the value g1. If the g2 value detected by the electronic detection device 8 is greater than or equal to the g1 value, a trigger signal is immediately transmitted to the gas generator 5, which rapidly inflates the airbag body 4.

[0049] In summary, the child car seat of the present invention forms an additional safety protection device by adding a mounting base to the car seat body 1 and arranging an inflatable airbag body 4 thereon. When the car collides, the airbag body 4 can quickly inflate and deploy and block in front of the body of the occupant 10 and under the head of the occupant 10, so that when the head of the occupant 10 swings forward due to the impact, it hits the elastic inflatable air cushion, thereby effectively protecting the head and neck of the occupant 10; at the same time, the airbag body 4 can also limit the forward displacement of the body of the occupant 10 after inflation and deployment, thereby protecting it and avoiding injury to the child due to strong impact.

[0050] The above embodiments are intended only to illustrate the technical concepts and features of the present invention. Their purpose is to enable those skilled in the art to understand the contents of the present invention and implement them accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications made in accordance with the spirit of the present invention are intended to be covered by the scope of protection of the present invention.

Claims

1. A child car seat with an additional safety protection device, comprising a car seat body for a passenger to sit on, characterized in that: The safety protection device includes a mounting base mounted on the car seat body and an airbag body arranged on the mounting base, wherein the mounting base is detachably or rotatably connected to the car seat body, and the inflated airbag body extends upward from the mounting base and is blocked in front of the body of the occupant, and extends downward and is blocked above the legs of the occupant. The inflated airbag body extends upward from the mounting base to form a first airbag body and extends downward from the mounting base to form a second airbag body. The first airbag body can be blocked between the chest and the bottom of the head of the occupant to protect the head and neck of the occupant; the second airbag can be blocked between the chest and the bottom of the head of the occupant to protect the head and neck of the occupant; the second airbag can be blocked between the The mounting base is installed between the legs of the passenger to limit the forward displacement of the passenger; the mounting base is a mounting frame, and the rear end portions on both sides of the mounting frame are pivotally connected to the left and right sides of the car seat body, or are detachably connected to the left and right sides of the car seat body; the airbag body is arranged at the front of the mounting frame; the bag cavity between the first airbag body and the second airbag body is arranged to be connected, and the front of the mounting frame is provided with a receiving groove that penetrates along the up and down directions and is used to accommodate the uninflated airbag body; during the upward and downward extension and deployment process of the first airbag body and the second airbag body, they simultaneously extend along the left and right directions of the car seat body to form a certain width to block the front of the passenger's body.

2. The child car seat with an additional safety protection device according to claim 1, characterized in that: The mounting base is a U-shaped mounting frame with an opening facing backward.

3. The child car seat with an additional safety protection device according to claim 1, characterized in that: The safety protection device further includes a gas generator connected to the airbag body and inflating the airbag body, wherein the gas generator is disposed in the mounting frame.

4. The child car seat with an additional safety protection device according to claim 1, characterized in that: The safety protection device further comprises a gas generator connected to the airbag body and inflating the airbag body, wherein the gas generator is arranged on the car seat body.

5. The child car seat with an additional safety protection device according to any one of claims 1 to 4, characterized in that: The safety protection device also includes an electronic detection device and a mechanical inflation device. The electronic detection device is provided with a threshold value g1 for triggering the mechanical inflation device. The electronic detection device is used to detect the acceleration g2 value of the vehicle. When it is detected that the g2 value is greater than or equal to the g1 value, the electronic detection device triggers the mechanical inflation device to start and inflate the airbag body.

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