Airbag redundant air pressure closed-loop self-balancing safety seat

Abstract

The utility model relates to the technical field of automobile child safety seats, in particular to an air bag redundant air pressure closed-loop self-balancing safety seat which comprises a seat frame and a base, one side of the seat frame is fixedly connected with a backrest air bag in a bonding mode, one side of the seat frame is fixedly connected with a waist support in a bonding mode, and the other side of the seat frame is fixedly connected with a backrest air bag. An air bag assembly is fixedly connected to the inner side of the seat frame, an inter-frame through hole is formed in one side of the seat frame, a communicating hole is formed in the side, close to the seat frame, of the backrest air bag, a communicating pipe is fixedly connected to the inner side of the backrest air bag, and a supporting assembly is fixedly connected to the inner side of the base. According to the damping device, the damping device can better adapt to instant fluctuation of air pressure in the cushion air bag, vibration and impact of different strengths can be subjected to targeted damping, and a dynamic pressure balance mechanism is formed.

Description

Technical Field

[0001] This utility model relates to the field of automotive child safety seat technology, specifically to a self-balancing safety seat with redundant airbag pressure closed loop. Background Technology

[0002] A child car seat is a passenger safety device designed specifically for children. Its main function is to protect children from injuries caused by collisions, sudden braking, and other accidents while the vehicle is in motion. Children are small and ordinary seat belts in cars are not suitable for them. Child car seats are designed according to the physical characteristics of children and can better fix their bodies. In the event of a collision, it can restrict the movement of the child's body and distribute the impact force to the stronger parts of the body, such as the bones and areas supported by the skeletal structure, thereby reducing the risk of injury.

[0003] Some car child safety seats are equipped with airbags, which allows the safety seat to better conform to the natural physiological curves of the child's body, reducing the discomfort caused by prolonged fixed sitting posture. At the same time, safety seats with airbags can play a good role in shock absorption. When the vehicle goes over bumpy roads or encounters vibrations, the airbag can absorb some of the vibration energy, reducing the direct impact of the vibration on the child's body.

[0004] However, due to the changing road conditions while driving, sudden braking, acceleration, or cornering can easily cause a child's body to inertia compress the airbag in the car seat. When the airbag is compressed, there will be instantaneous fluctuations in the internal air pressure. If the airbag cannot adjust the internal air pressure in time, the child's body will sway inside the car seat, affecting the riding comfort. It may also fail to provide optimal support and protection at the moment of collision. Therefore, to address the above problems, a car seat with redundant airbag pressure closed-loop self-balancing is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a self-balancing, closed-loop airbag pressure system to address the issue that, due to varying road conditions during driving, sudden braking, acceleration, or cornering, a child's body may inertia compress the airbag in the safety seat. This compression can cause instantaneous fluctuations in internal air pressure. If the airbag cannot adjust its internal pressure in time, the child's body will sway inside the safety seat, affecting comfort and potentially failing to provide optimal support and protection during a collision.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A redundant airbag pressure closed-loop self-balancing safety seat includes a seat frame and a base. A backrest airbag is fixedly connected to one side of the seat frame by adhesive bonding, and a lumbar support is fixedly connected to the other side of the seat frame by adhesive bonding. An airbag assembly is fixedly connected to the inner side of the seat frame. An inter-frame through-hole is provided on one side of the seat frame. A connecting hole is provided on the side of the backrest airbag near the seat frame, and a connecting tube is fixedly connected to the inner side of the backrest airbag. A support assembly is fixedly connected to the inner side of the base. The airbag assembly includes a seat cushion airbag. A one-way air intake valve is installed inside the seat cushion airbag. A fixing plate is fixedly connected to the inner side of the seat cushion airbag. A hollow airbag column is fixedly connected to the upper end of the fixing plate. A rubber partition is fixedly connected to the outer side of the fixing plate. Connecting rivets are installed inside the fixing plate. An exhaust pipe assembly is fixedly connected to the inner side of the rubber partition. The support assembly includes a support platform. A long pipe is fixedly connected to one side of the support platform, and an air intake tube is fixedly connected to the inner side of the support platform.

[0008] As a further optimization of this utility model, the following features are provided: the backrest airbag is located above the lumbar support; cavities are formed on the inner sides of the seat frame, the backrest airbag, and the lumbar support; the through holes and connecting holes between the frames are interconnected; the backrest airbag is interconnected with the lumbar support via a connecting tube; and several small holes are formed on one side of the lumbar support.

[0009] As a further optimization of this utility model, the bottom end of the fixing plate is completely attached to the bottom end of the inner wall of the seat cushion airbag, the outer side of the exhaust pipe assembly is fixedly connected to the fixing plate by adhesive, several exhaust pipe assemblies are provided, the multiple exhaust pipe assemblies are parallel to each other, and the outer side of the rubber partition is tightly attached to the inner side of the seat cushion airbag.

[0010] As a further optimization of this utility model, the upper end of the hollow airbag column is fixedly connected to a seat cushion airbag, and there are several hollow airbag columns. The multiple hollow airbag columns are parallel to each other, and the horizontal projection of the connecting rivet is "I" shaped. A part of the connecting rivet is located on the inner side of the support platform.

[0011] As a further optimization of this utility model, the one-way air intake valve is projected in the vertical direction in the shape of an "I". The one-way air intake valve includes a fixed nozzle, an air intake hole is opened on the inner side of the fixed nozzle, a perforated connecting post is fixedly connected to one side of the fixed nozzle, a rubber duckbill valve is fixedly connected to one end of the perforated connecting post, an opening and closing hole is opened on the inner side of the rubber duckbill valve, a portion of the fixed nozzle is located on the outer side of the seat cushion airbag, and a portion of the rubber duckbill valve is located on the inner side of the seat cushion airbag.

[0012] As a further optimization of this utility model, the exhaust pipe assembly includes a hollow pipe with four inter-pipe holes on its outer side. Each pair of inter-pipe holes forms a group, and the two groups of inter-pipe holes are symmetrically distributed. A limit post is fixedly connected to the inner side of the hollow pipe, and a piston block is slidably connected to the inner side of the hollow pipe. A compression spring is fixedly connected to one side of the piston block. There are two piston blocks, and the two piston blocks are connected by a compression spring. An exhaust port is provided on the outer side of the hollow pipe.

[0013] As a further optimization of this utility model, the upper surface of the support platform is in contact with the lower surface of the seat cushion airbag, a cavity is provided on the inner side of the support platform, the support platform is connected to the hollow tube through an air intake pipe, and one end of the long tube is located inside the seat frame.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] In this invention, the device can better adapt to the instantaneous fluctuations in air pressure inside the seat cushion airbag by setting the airbag assembly and support assembly, so that vibrations and impacts of different intensities can be specifically damped, forming a dynamic pressure balance mechanism. At the same time, it can form a continuous airflow exchange, so that the airbag can quickly return to its original shape after being depressurized, ensuring that it can cope with subsequent pressure changes. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is an overall sectional view of the present invention;

[0018] Figure 3 for Figure 2 Enlarged structural diagram at point A in the middle;

[0019] Figure 4 This is a schematic diagram of the installation position of the support component of this utility model;

[0020] Figure 5 This is a cross-sectional structural diagram of the airbag assembly of this utility model;

[0021] Figure 6 This is a first-view structural schematic diagram of the one-way intake valve of this utility model;

[0022] Figure 7 This is a schematic diagram of the one-way intake valve of this utility model from a second perspective.

[0023] Figure 8 This is a cross-sectional structural diagram of the exhaust pipe assembly of this utility model;

[0024] Figure 9This is a schematic diagram showing the location and structure of the exhaust port in this utility model;

[0025] Figure 10 This is a schematic diagram of the support component structure of this utility model.

[0026] In the picture: 1. Seat frame; 2. Backrest airbag; 3. Lumbar support;

[0027] 4. Airbag assembly; 41. Seat cushion airbag;

[0028] 42. One-way air intake valve; 421. Fixed nozzle; 422. Air intake port; 423. Connecting post with perforation; 424. Rubber duckbill valve; 425. Opening and closing hole;

[0029] 43. Fixing plate; 44. Hollow airbag column; 45. Rubber partition; 46. Connecting rivets;

[0030] 47. Exhaust pipe assembly; 471. Hollow pipe; 472. Pipe hole; 473. Limiting post; 474. Piston block; 475. Compression spring; 476. Exhaust port;

[0031] 5. Through-hole between shelves; 6. Connecting hole; 7. Connecting pipe;

[0032] 8. Support components; 81. Support platform; 82. Long pipe; 83. Intake pipe;

[0033] 9. Base. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0036] Please see Figure 1-10 This utility model provides a technical solution:

[0037] A self-balancing safety seat with redundant airbag pressure closed-loop system includes a seat frame 1 and a base 9. A backrest airbag 2 is adhesively connected to one side of the seat frame 1, and a lumbar support 3 is adhesively connected to the same side. An airbag assembly 4 is fixedly connected to the inside of the seat frame 1. A through-hole 5 is provided on one side of the seat frame 1. A connecting hole 6 is provided on the side of the backrest airbag 2 near the seat frame 1. A connecting tube 7 is fixedly connected to the inside of the backrest airbag 2. A support assembly 8 is fixedly connected to the inside of the base 9. The airbag assembly 4 includes… The seat cushion airbag 41 has a one-way air intake valve 42 installed inside it. A fixing plate 43 is fixedly connected to the inside of the seat cushion airbag 41. A hollow airbag column 44 is fixedly connected to the upper end of the fixing plate 43. A rubber partition 45 is fixedly connected to the outside of the fixing plate 43. A connecting rivet 46 is installed inside the fixing plate 43. An exhaust pipe assembly 47 is fixedly connected to the inside of the rubber partition 45. The support assembly 8 includes a support platform 81. A long pipe 82 is fixedly connected to one side of the support platform 81. An air intake pipe 83 is fixedly connected to the inside of the support platform 81.

[0038] As a further implementation of this solution, the backrest airbag 2 is located above the lumbar support 3. The seat frame 1, the backrest airbag 2, and the lumbar support 3 all have cavities on their inner sides. The through holes 5 and connecting holes 6 between the frames are interconnected. The backrest airbag 2 is interconnected with the lumbar support 3 through the connecting pipe 7. Several small holes are opened on one side of the lumbar support 3. The design of having cavities on the inner sides of the seat frame 1, the backrest airbag 2, and the lumbar support 3 provides a spatial basis for air circulation and regulation, which helps to achieve air pressure balance and air circulation inside the seat. The backrest airbag 2 is interconnected with the lumbar support 3 through the connecting pipe 7, which allows for air pressure regulation and balance between the backrest airbag 2 and the lumbar support 3. Several small holes are opened on one side of the lumbar support 3. These small holes can expel excess air from the lumbar support 3 and also play a role in ventilation, increasing the breathability of the seat, preventing excessive sweating of the waist during sitting, and keeping the sitting area dry and comfortable.

[0039] As a further implementation of this solution, the bottom end of the fixing plate 43 is completely attached to the bottom end of the inner wall of the seat cushion airbag 41. The outer side of the exhaust pipe assembly 47 is fixedly connected to the fixing plate 43 by adhesive. Several exhaust pipe assemblies 47 are provided, and the multiple exhaust pipe assemblies 47 are parallel to each other. The outer side of the rubber partition 45 is tightly attached to the inner side of the seat cushion airbag 41. The setting of the rubber partition 45 can divide the internal space of the seat cushion airbag 41 into multiple parts, so that each part can be adjusted for air pressure relatively independently. This can more accurately fit the needs of different parts of the child, better distribute the body weight, and reduce local pressure. The setting of multiple exhaust pipe assemblies 47 can make the internal air of the seat cushion airbag 41 quickly discharged when it is squeezed, thereby better adjusting the air pressure in the seat cushion airbag 41 to adapt to the changes in the child's posture.

[0040] As a further implementation of this solution, a seat cushion airbag 41 is fixedly connected to the upper end of the hollow airbag column 44. Several hollow airbag columns 44 are provided, and the multiple hollow airbag columns 44 are parallel to each other. The connecting rivet 46 has a horizontal projection of "I" shape. Part of the connecting rivet 46 is located inside the support platform 81. The setting of the connecting rivet 46 can better fix the seat cushion airbag 41 to the support platform 81, thereby strengthening the connection between the components. The setting of multiple hollow airbag columns 44 can make the seat cushion airbag 41 recover its deformation more quickly.

[0041] As a further implementation of this solution, the one-way air intake valve 42 is projected in an "I" shape in the vertical direction. The one-way air intake valve 42 includes a fixed nozzle 421, an air intake hole 422 is opened on the inner side of the fixed nozzle 421, a perforated connecting post 423 is fixedly connected to one side of the fixed nozzle 421, and a rubber duckbill valve 424 is fixedly connected to one end of the perforated connecting post 423. An opening and closing hole 425 is opened on the inner side of the rubber duckbill valve 424. Part of the fixed nozzle 421 is located on the outside of the seat cushion airbag 41, and part of the rubber duckbill valve 424 is located on the inside of the seat cushion airbag 41. The shape of the one-way air intake valve 42 allows it to be better fixed inside the seat cushion airbag 41. The opening and closing hole 425 on the inside of the rubber duckbill valve 424 will be closed when the seat cushion airbag 41 deforms and squeezes the rubber duckbill valve 424, preventing air from flowing out. When the hollow airbag column 44 resets and drives the seat cushion airbag 41 to reset, the negative pressure formed inside the seat cushion airbag 41 causes air to enter the rubber duckbill valve 424 through the air intake hole 422 and the perforated connecting column 423 in the fixed mouth 421, which will open the opening and closing hole 425.

[0042] As a further implementation of this solution, the exhaust pipe assembly 47 includes a hollow pipe 471. Four inter-pipe holes 472 are provided on the outer side of the hollow pipe 471, arranged in pairs symmetrically. A limiting post 473 is fixedly connected to the inner side of the hollow pipe 471. A piston block 474 is slidably connected to the inner side of the hollow pipe 471. A compression spring 475 is fixedly connected to one side of the piston block 474. Two piston blocks 474 are provided, connected by the compression spring 475. An exhaust port 476 is provided on the outer side of the hollow pipe 471. The limiting post 473 can limit the movement of the internal piston block 474, preventing excessive displacement during movement. The two piston blocks 474 are connected by the compression spring 475. The connection allows the compression spring 475 to store elastic potential energy when compressed, and when the pressure decreases or disappears, the compression spring 475 releases its elastic force, pushing the piston block 474 to reset.

[0043] As a further implementation of this solution, the upper surface of the support platform 81 is in close contact with the lower surface of the seat cushion airbag 41. A cavity is provided on the inner side of the support platform 81. The support platform 81 is connected to the hollow tube 471 through the air intake tube 83. One end of the long tube 82 is set inside the seat frame 1. The design of the upper surface of the support platform 81 being in close contact with the lower surface of the seat cushion airbag 41 can strengthen the mutual support between the components. The long tube 82 being set inside the seat frame 1 can transport excess air inside the support platform 81 to the inside of the seat frame 1, thereby realizing the release of redundant air pressure.

[0044] Working process: When the device is in use, when the air pressure inside the seat cushion airbag 41 increases due to compression, the air inside the seat cushion airbag 41 enters the hollow tube 471 through the inter-tube hole 472, pushing the piston block 474 to move. Because the rubber partition 45 divides the space inside the seat cushion airbag 41 into two parts, the different volumes of air entering the hollow tube 471 through the inter-tube holes 472 on both sides of the rubber partition 45 will exert different forces on the two piston blocks 474. The part of the seat cushion airbag 41 with greater pressure will first send its internal air into the hollow tube 471 through the corresponding inter-tube hole 472. In step 1, the corresponding piston block 474 is pushed, causing air to be discharged from the exhaust port 476. The less pressurized portion of the seat cushion airbag 41 will release some air from the more pressurized portion, which will then be fed into the hollow tube 471 through the corresponding inter-tube hole 472, pushing the corresponding piston block 474 to discharge air from the exhaust port 476. This allows for the phased discharge of air from different parts of the seat cushion airbag 41 based on the pressure location and degree, providing targeted shock absorption for vibrations and impacts of varying intensities. This dynamic pressure balance mechanism better adapts to the instantaneous changes in internal air pressure within the seat cushion airbag 41. When the child moves, the air discharged through the exhaust port 476 enters the support platform 81 through the intake pipe 83, and then is transported through the support platform 81 to the cavity inside the seat frame 1. It then enters the backrest airbag 2 through the inter-frame through-hole 5 and the connecting hole 6, causing the backrest airbag 2 to inflate quickly. This ensures that the backrest airbag 2 provides better cushioning when the child moves. The air inside the backrest airbag 2 is gradually discharged into the lumbar support 3 through the connecting pipe 7, and then discharged through a small hole on one side of the lumbar support 3 to ensure the comfort of the backrest airbag 2. The piston block 474 is controlled by the limiting post 473. The limitation of the compression spring 475 causes the two piston blocks 474 to be positioned on both sides above the exhaust port 476 when the compression spring 475 returns to its original position. This prevents the air entering the hollow tube 471 through the exhaust port 476 from flowing out through the tube hole 472. Therefore, when the hollow airbag column 44 returns to its original position and causes the seat cushion airbag 41 to return to its original position, the negative pressure formed inside the seat cushion airbag 41 causes air to enter the rubber duckbill valve 424 through the air inlet 422 and the perforated connecting column 423 in the fixed nozzle 421, and pushes open the opening and closing hole 425, thus expanding the opening of the opening and closing hole 425, thereby allowing air to quickly replenish the seat cushion airbag 41.

[0045] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A self-balancing safety seat with redundant airbag pressure closed loop, comprising a seat frame (1) and a base (9), characterized in that: A backrest airbag (2) is fixedly connected to one side of the seat frame (1) by adhesive bonding. A lumbar support (3) is fixedly connected to one side of the seat frame (1) by adhesive bonding. An airbag assembly (4) is fixedly connected to the inside of the seat frame (1). A through hole (5) is opened on one side of the seat frame (1). A connecting hole (6) is opened on the side of the backrest airbag (2) near the seat frame (1). A connecting tube (7) is fixedly connected to the inside of the backrest airbag (2). A support assembly (8) is fixedly connected to the inside of the base (9). The airbag assembly (4) includes a seat cushion airbag (41), a one-way air intake valve (42) is installed inside the seat cushion airbag (41), a fixing plate (43) is fixedly connected to the inside of the seat cushion airbag (41), a hollow airbag column (44) is fixedly connected to the upper end of the fixing plate (43), a rubber partition (45) is fixedly connected to the outside of the fixing plate (43), a connecting rivet (46) is installed inside the fixing plate (43), and an exhaust pipe assembly (47) is fixedly connected to the inside of the rubber partition (45). The support assembly (8) includes a support platform (81), a long pipe (82) is fixedly connected to one side of the support platform (81), and an air intake pipe (83) is fixedly connected to the inside of the support platform (81).

2. The airbag redundant air pressure closed-loop self-balancing safety seat according to claim 1, characterized in that: The backrest airbag (2) is located above the lumbar support (3). The seat frame (1), the backrest airbag (2) and the lumbar support (3) are all provided with cavities. The frame through hole (5) and the connecting hole (6) are connected to each other. The backrest airbag (2) is connected to the lumbar support (3) through the connecting pipe (7). Several small holes are provided on one side of the lumbar support (3).

3. The airbag redundant air pressure closed-loop self-balancing safety seat according to claim 1, characterized in that: The bottom end of the fixing plate (43) is completely attached to the bottom end of the inner wall of the seat cushion airbag (41). The outer side of the exhaust pipe assembly (47) is fixedly connected to the fixing plate (43) by adhesive. There are several exhaust pipe assemblies (47), and the multiple exhaust pipe assemblies (47) are parallel to each other. The outer side of the rubber partition (45) is in close contact with the inner side of the seat cushion airbag (41).

4. The airbag redundant air pressure closed-loop self-balancing safety seat according to claim 1, characterized in that: The bottom end of the fixing plate (43) is completely attached to the bottom end of the inner wall of the seat cushion airbag (41). The outer side of the exhaust pipe assembly (47) is fixedly connected to the fixing plate (43) by adhesive. There are several exhaust pipe assemblies (47), and the multiple exhaust pipe assemblies (47) are parallel to each other. The outer side of the rubber partition (45) is in close contact with the inner side of the seat cushion airbag (41).

5. A self-balancing safety seat with redundant airbag pressure closed-loop as described in claim 1, characterized in that: The upper end of the hollow airbag column (44) is fixedly connected to the seat cushion airbag (41). There are several hollow airbag columns (44), and the multiple hollow airbag columns (44) are parallel to each other. The horizontal projection of the connecting rivet (46) is "I" shaped. Part of the connecting rivet (46) is located inside the support platform (81).

6. A self-balancing safety seat with redundant airbag pressure closed-loop as described in claim 1, characterized in that: The projection of the one-way air intake valve (42) in the vertical direction is "I" shaped. The one-way air intake valve (42) includes a fixed nozzle (421). An air intake hole (422) is opened on the inner side of the fixed nozzle (421). A perforated connecting post (423) is fixedly connected to one side of the fixed nozzle (421). A rubber duckbill valve (424) is fixedly connected to one end of the perforated connecting post (423). An opening and closing hole (425) is opened on the inner side of the rubber duckbill valve (424). A part of the fixed nozzle (421) is located on the outside of the seat cushion airbag (41), and a part of the rubber duckbill valve (424) is located on the inside of the seat cushion airbag (41).

7. A self-balancing safety seat with redundant airbag pressure closed-loop as described in claim 1, characterized in that: The exhaust pipe assembly (47) includes a hollow pipe (471), with a pipe hole (472) on the outside of the hollow pipe (471). There are four pipe holes (472), with two pipe holes (472) forming a group. The two groups of pipe holes (472) are symmetrically distributed. A limit post (473) is fixedly connected to the inside of the hollow pipe (471). A piston block (474) is slidably connected to the inside of the hollow pipe (471). A compression spring (475) is fixedly connected to one side of the piston block (474). There are two piston blocks (474), and the two piston blocks (474) are connected by the compression spring (475). An exhaust hole (476) is opened on the outside of the hollow pipe (471).

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