Support structure, child safety seat and control method thereof

Abstract

The application discloses a support structure, a child safety seat and a control method thereof, and belongs to the technical field of child safety seats. The support structure comprises a support leg and an air bag part. The support leg is used for being connected with a base of the child safety seat. The bottom of the support leg is provided with a receiving groove with an opening downward. The air bag part is installed in the receiving groove. The air bag part has a contraction state and an expansion state. In the contraction state, the air bag part is received in the receiving groove. In the expansion state, the air bag part is at least partially arranged outside the receiving groove. By switching the air bag part from the contraction state to the expansion state, the expanded air bag part fills the carpet deformation space, so that the support structure can provide stable support for the child on the soft carpet, and the child safety seat is prevented from overturning due to the non-adhesion between the child safety seat base and the rear seat cushion and the suspension of the child safety seat.

Description

Technical Field

[0001] This application belongs to the field of child safety seat technology, and in particular relates to a support structure, a child safety seat and a control method thereof. Background Technology

[0002] Support leg child safety seats are a semi-universal type. When the support leg is extended, it forms a stable triangular support system with ISOFIX, ensuring a close fit between the child safety seat and the rear seat cushion, preventing the seat from rolling over and providing protection for the child occupant. However, in the event of a frontal collision, existing support leg child safety seats may not provide stable support due to the carpet. Initially, the seat base may not fit tightly against the rear seat cushion, and during the rebound phase, the support leg may become suspended, causing the child safety seat to roll over and failing to provide stable protection for the child occupant. Summary of the Invention

[0003] This application aims to address at least one of the technical problems existing in the prior art. To this end, this application proposes a support structure, a child safety seat, and a control method thereof, which enables the support structure to provide stable support for the child on a soft carpet and to prevent the child seat from flipping over in the event of a frontal collision.

[0004] In a first aspect, this application provides a support structure suitable for child safety seats, the support structure comprising:

[0005] The support leg is used to connect to the base of the child safety seat, and the bottom of the support leg is provided with a storage groove with the opening facing downwards;

[0006] An airbag portion is installed in the storage groove. The airbag portion has a contracted state and an inflated state. When the airbag portion is in the contracted state, the airbag portion is stored in the storage groove. When the airbag portion is in the inflated state, the airbag portion is at least partially extended out of the storage groove.

[0007] According to the support structure of this application, when a child safety seat is needed, it is placed on the car seat with the support legs abutting against the car carpet. The design of the support legs ensures the stability of the child safety seat during use, avoiding danger caused by shaking. Furthermore, in the event of a frontal collision, the soft carpet will deform further under the pressure of the support legs, posing a risk of the child safety seat flipping over. By switching the airbag from a contracted state to an inflated state, the inflated airbag fills the deformation space of the carpet, preventing the child safety seat from flipping over due to the base not fitting snugly against the rear seat cushion or the child safety seat being suspended in the air. This rapidly absorbs the energy generated by inertia, thereby reducing the probability of injury to the child occupant.

[0008] According to one embodiment of this application, the airbag portion includes:

[0009] An airbag body, the airbag body having an air inlet, and the airbag body having a contracted state and an inflated state;

[0010] An inflation section is installed in the storage slot and is used to inflate gas into the air inlet.

[0011] According to one embodiment of this application, the inflatable part is installed in the storage slot via a support part, the support part comprising:

[0012] A support ring extends circumferentially along the inflatable portion and abuts against the airbag body when the airbag body is in the inflated state.

[0013] A connecting arm extends along the diameter of the support ring, with both ends connected to the support ring. The upper end face of the connecting arm is connected to the bottom wall of the storage groove, and the lower end face of the connecting arm is connected to the upper end face of the inflatable part.

[0014] According to one embodiment of this application, the connecting arm is bent, and the middle part of the connecting arm is higher than both ends of the connecting arm.

[0015] According to one embodiment of this application, multiple connecting arms are provided, and among the multiple connecting arms, two adjacent connecting arms are arranged at an included angle.

[0016] According to one embodiment of this application, a protective pad is further provided at the bottom of the airbag portion; and / or,

[0017] The airbag and the support leg are connected by a detachable structure; and / or,

[0018] The bottom of the support leg gradually widens from top to bottom; and / or,

[0019] The length of the support leg is adjustable along the vertical direction.

[0020] According to one embodiment of this application, the detachable structure includes a threaded post and a threaded hole adapted to the threaded post, wherein one of the threaded post and the threaded hole is located in the airbag portion, and the other is located in the support leg; or,

[0021] The detachable structure includes a latch and a slot that matches the latch, one of which is located in the airbag portion and the other in the support leg.

[0022] According to one embodiment of this application, the support leg includes:

[0023] An outer sleeve, the bottom of which is fitted with the airbag section;

[0024] An inner sleeve is fitted inside the outer sleeve, and the top of the inner sleeve is used to connect to the base of the child safety seat;

[0025] A locking structure is provided between the outer sleeve and the inner sleeve, the locking structure being used to lock and fix the inner sleeve and the outer sleeve together.

[0026] Secondly, this application provides a child safety seat, which includes the child safety seat as described above.

[0027] According to the child safety seat disclosed in this application, when the child safety seat is needed, it is placed on the car seat with the support leg against the car carpet. The design of the support leg ensures that the child safety seat remains stable during use, avoiding danger caused by shaking. Furthermore, in the event of a frontal collision, the soft carpet will deform further under the pressure of the support leg, posing a risk of the child safety seat flipping over. By switching the airbag from a contracted state to an inflated state, the inflated airbag fills the deformation space of the carpet, preventing the child safety seat from flipping over due to the base not fitting snugly against the rear seat cushion or the child safety seat being suspended in the air. This rapidly absorbs the energy generated by inertia, thereby reducing the probability of injury to the child occupant.

[0028] According to one embodiment of this application, the child safety seat further includes:

[0029] A base, on which the supporting structure is mounted;

[0030] A seat is mounted on the upper surface of the base;

[0031] A occupancy sensor is installed on the seat to detect whether a child is sitting in the seat;

[0032] A pressure sensor is installed on the support leg, and the pressure sensor is used to detect the pressure on the support leg;

[0033] The controller is electrically connected to the occupancy sensor and the pressure sensor, and the controller is used to control the airbag to switch from the contracted state to the inflated state according to the information parameters transmitted by the occupancy sensor and the pressure sensor.

[0034] Thirdly, this application provides a control method based on the child safety seat as described above, comprising the following steps:

[0035] Obtain pressure and placeholder information;

[0036] When the pressure information meets the preset pressure condition and the occupancy information meets the preset occupancy condition, the airbag is controlled to switch from the contracted state to the inflated state.

[0037] According to the child safety seat control method of this application, pressure information and occupancy information are acquired. When the pressure information meets a preset pressure condition and the occupancy information meets a preset occupancy condition, the airbag is controlled to switch from the contracted state to the inflated state. Thus, by acquiring the pressure and occupancy information, it is possible to more accurately determine whether the airbag needs to be triggered. The airbag is only triggered when both the pressure and occupancy information meet the preset conditions, ensuring correct and timely deployment when truly needed. Since the airbag is only triggered when both the pressure and occupancy information meet the preset conditions, false triggering can be avoided. For example, if only the pressure information meets the condition but the occupancy information does not, the airbag will not be triggered. By precisely triggering the airbag, false or missed triggering can be reduced, thereby improving the reliability of the entire system. At the same time, since the airbag is only activated when it is truly needed, it can reduce misoperation or misuse of the airbag, further improving the reliability of the system. By precisely switching the airbag from the contracted state to the inflated state, the inflated airbag will fill the space deformed by the carpet, preventing the child safety seat from flipping over due to the child safety seat base not fitting properly with the rear seat cushion or the child safety seat being suspended in the air. It also quickly absorbs the energy generated by the inertia of the child safety seat, thereby reducing the probability of injury to the child occupant.

[0038] According to one embodiment of this application, the step of obtaining pressure information and occupancy information further includes the following prior to the following:

[0039] Obtain collision information, and the collision information satisfies preset collision conditions.

[0040] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0041] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0042] Figure 1 This is a schematic diagram of the installation of a child safety seat in a vehicle body according to an embodiment of this application;

[0043] Figure 2 This is a schematic diagram of the support structure of this application installed on the base of a child safety seat;

[0044] Figure 3 This is a schematic diagram of the structure of the airbag portion (in a contracted state) according to an embodiment of this application;

[0045] Figure 4 yes Figure 3 A top-down view;

[0046] Figure 5 This is a schematic diagram of the structure of the airbag (in an inflated state) according to an embodiment of this application;

[0047] Figure 6 yes Figure 5 A diagram showing the view from below.

[0048] Figure label:

[0049] Child safety seat 1000;

[0050] Support structure 100;

[0051] Support leg 110, outer sleeve 111, inner sleeve 112, locking structure 113;

[0052] Airbag section 120, airbag body 121, inflation section 122;

[0053] Support part 130, support ring 131, connecting arm 132;

[0054] Protective pad 140;

[0055] Threaded post 151;

[0056] Base 200;

[0057] Seat 300;

[0058] Pressure sensor 400. Detailed Implementation

[0059] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0060] Unless otherwise specified, the front-back direction in this application refers to the longitudinal direction of the vehicle, i.e., the X direction; the left-right direction refers to the lateral direction of the vehicle, i.e., the Y direction; and the up-down direction refers to the vertical direction of the vehicle, i.e., the Z direction.

[0061] The following is for reference. Figures 1-6 This application describes a support structure, a child safety seat, and a control method thereof according to embodiments thereof.

[0062] Reference Figures 1 to 3 The support structure 100 includes a support leg 110 and an airbag section 120.

[0063] The support leg 110 is used to connect to the base 200 of the child safety seat 1000. The bottom of the support leg 110 is provided with a storage groove with the opening facing downward. The airbag part 120 is installed in the storage groove. The airbag part 120 has a contracted state and an inflated state. When the airbag part 120 is in the contracted state, the airbag part 120 is stored in the storage groove. When the airbag part 120 is in the inflated state, the airbag part 120 is at least partially extended out of the storage groove.

[0064] According to the support structure 100 of this application, when the child safety seat 1000 needs to be used, the child safety seat 1000 is placed on the car seat, with the support leg 110 abutting against the car carpet. The design of the support leg 110 ensures that the child safety seat 1000 remains stable during use, avoiding danger caused by shaking. In addition, in the event of a frontal collision, because the carpet is soft, it will be further deformed by the pressure of the support leg 110, making the child safety seat 1000 risky from flipping over. By switching the airbag part 120 from a contracted state to an inflated state, the inflated airbag part 120 will fill the deformation space of the carpet, preventing the child safety seat 1000 from flipping over due to the base 200 of the child safety seat 1000 not fitting properly with the rear seat cushion or the child safety seat 1000 being suspended in the air. This quickly absorbs the energy generated by the inertia of the child safety seat 1000, thereby reducing the probability of injury to the child occupant.

[0065] Reference Figures 3 to 5 In one embodiment, the airbag portion 120 includes an airbag body 121 and an inflation portion 122.

[0066] The airbag body 121 has an air inlet and can be in a contracted or inflated state. This air inlet ensures that the airbag body 121 can inflate rapidly when needed, providing sufficient support and protecting the child's safety. The contracted state of the airbag body 121 allows for easy storage in a storage slot, reducing its footprint and resulting in a compact structure. It can be adjusted to suit the child's needs, providing a comfortable riding experience. Because the airbag body 121 can be both retracted and inflated, this design allows the seat to be reused in different situations, improving its cost-effectiveness.

[0067] It should be noted that the airbag body 121 can be made of various materials, such as rubber, polyurethane, or polyamide fiber. Rubber possesses excellent elasticity and wear resistance. Rubber airbags can maintain stability under high pressure and provide reliable support and cushioning. The advantages of rubber materials lie in their good durability and adaptability, enabling them to cope with various road conditions and load conditions. Polyurethane has high strength and rigidity. Polyurethane airbags can withstand high pressure and maintain stability in various harsh environments. The advantages of this material lie in its excellent resistance to deformation and durability. Polyamide fiber is a high-molecular synthetic material that is lightweight, high-strength, impact-resistant, and wear-resistant.

[0068] The inflation section 122 is installed in the storage slot, and gas is injected into the air inlet through the inflation section 122, making it very convenient to inject gas into the air inlet. The design of the inflation section 122 ensures that gas can be injected into the air inlet stably and evenly, avoiding problems such as uneven expansion of the airbag body 121 or air leakage caused by improper inflation, thus improving the reliability and durability of the product.

[0069] It should be noted that there are several types of inflation units 122, including gas generator type inflation units 122, gas cylinder type inflation units 122, and mixed type inflation units 122. A gas generator type inflation unit 122 is a device that inflates by generating a large amount of gas through combustion. It typically consists of a propellant, an oxidant, and an igniter. Upon impact, the igniter ignites the propellant and oxidant, generating a large amount of gas that inflates the airbag. A gas cylinder type inflation unit 122 is a device that inflates by using high-pressure gas in a gas cylinder. It typically consists of a high-pressure gas cylinder, a control valve, and an inflation valve. Upon impact, the control valve opens, and high-pressure gas flows out of the gas cylinder and into the airbag through the inflation valve. A mixed type inflation unit 122 is a device that combines a gas generator and a gas cylinder. It typically consists of a high-pressure gas cylinder, a gas generator, and a control valve. When a collision occurs, the control valve opens, and high-pressure gas flows out from the gas reservoir. At the same time, the gas generator also produces a large amount of gas, which together pushes the airbag to inflate.

[0070] Reference Figures 3 to 5 In one embodiment, the inflatable part 122 is installed in the storage slot via a support part 130, which includes a support ring 131 and a connecting arm 132.

[0071] The support ring 131 extends circumferentially along the inflatable portion 122, and when the airbag body 121 is inflated, the support ring 131 abuts against the airbag body 121. This design of the support ring 131 increases the stability of the support portion 130, making the inflatable portion 122 more stable during inflation and preventing movement or twisting due to the expansion of the airbag body 121. The support ring 131, extending circumferentially along the inflatable portion 122, can also serve as a guide for the expansion of the airbag body 121, ensuring more uniform and stable expansion and preventing twisting or deviation. When the airbag body 121 is inflated, the support ring 131 abuts against it, providing additional support and protection, reducing the impact and pressure on the airbag body 121 during expansion, and improving the protective effect of the airbag body 121.

[0072] The connecting arm 132 extends along the diameter of the support ring 131. Both ends of the connecting arm 132 are connected to the support ring 131. The upper end face of the connecting arm 132 is connected to the bottom wall of the receiving groove, and the lower end face is connected to the upper end face of the inflatable part 122. This design of the connecting arm 132 enhances the structural stability of the entire support part 130. The connecting arm 132, extending along the diameter of the support ring 131 and connected to both ends, forms a stable structural frame that effectively resists external impacts and pressure. The upper end face of the connecting arm 132 is connected to the bottom wall of the receiving groove, and the lower end face is connected to the upper end face of the inflatable part 122. This connection method ensures the reliability and stability of the connection. The design of the connecting arm 132 makes the entire support part 130 easy to install and maintain. During installation, simply connect the upper and lower ends of the connecting arm 132 to the bottom wall of the storage slot and the upper end of the inflation part 122, respectively. The operation is simple and convenient.

[0073] Reference Figure 3 and Figure 5 In one embodiment, the connecting arm 132 is curved, with its middle portion higher than both ends. This curved design increases its torsional strength. When subjected to external torque, the curved connecting arm 132 better disperses and resists the torque, maintaining the stability and reliability of the entire support 130. The higher middle portion of the connecting arm 132 also enhances its cushioning effect. Furthermore, the curved connecting arm 132 provides a guiding function. During the inflation of the airbag body 121, the connecting arm 132 guides the airbag body 121 to inflate in the correct direction, preventing twisting or displacement and ensuring the protective effect of the airbag body 121. The higher middle portion also makes better use of space, resulting in a more compact and efficient support 130.

[0074] In one embodiment, multiple connecting arms 132 are provided, with adjacent connecting arms 132 arranged at an angle. This arrangement of multiple connecting arms 132 improves the stability of the entire support 130. The angled arrangement of adjacent connecting arms 132 forms a stable support structure 100, which better resists external impacts and pressures. When the airbag body 121 inflates, the multiple connecting arms 132 can disperse the impact force, reducing pressure and damage to individual connecting arms 132. The angled arrangement allows the impact force to be dispersed in multiple directions, further improving the stability and reliability of the entire support 130. The angled arrangement also increases the strength of the connecting arms 132. The angled arrangement of adjacent connecting arms 132 increases the support area between them, improving the load-bearing capacity and impact resistance of the connecting arms 132.

[0075] Reference Figure 6 In one embodiment, a protective pad 140 is also provided at the bottom of the airbag body 121. This protective pad 140 protects the bottom of the airbag body 121 from direct impact or friction. During the inflation process of the airbag body 121, the protective pad 140 absorbs some of the impact force, reducing damage to the airbag body 121. Furthermore, the protective pad 140 prevents the airbag body 121 from being scratched by sharp objects when switching to the inflated state. The protective pad 140 makes the entire airbag body 121 easier to install and maintain.

[0076] Specifically, the protective pad 140 can be connected to the bottom of the airbag body 121, thus making the protective pad 140 an integral part of the airbag body 121, thereby improving the stability of the entire airbag 120. This integral design reduces the possibility of the protective pad 140 shifting or separating during airbag body 121 deployment, ensuring the airbag body 121 functions effectively at critical moments. The integral design of the protective pad 140 and airbag body 121 simplifies the installation process. When installing the airbag, there is no need to install the protective pad 140 separately, reducing operation steps and installation time, and improving installation efficiency. The tight connection between the protective pad 140 and the bottom of the airbag body 121 reduces space occupation, making the airbag structure more compact. After the protective pad 140 and airbag body 121 are integrally connected, they can better perform their protective function.

[0077] It should be noted that there are several ways in which the protective pad 140 can be connected to the bottom of the airbag body 121. For example, in one embodiment, the protective pad 140 can be glued to the bottom of the airbag body 121, which is simple and easy to operate. In another embodiment, the protective pad 140 can be sewn to the bottom of the airbag body 121, thus making the connection between the protective pad 140 and the airbag body 121 secure. In yet another embodiment, the protective pad 140 can be snapped to the bottom of the airbag body 121 using a snap-fit ​​structure, which facilitates the replacement of the protective pad 140 as needed. Furthermore, the technology of snap-fit ​​structures is already mature, and will not be elaborated upon here.

[0078] The protective pad 140 can be made from various materials, including rubber, silicone, nylon, polyester, polypropylene, and acrylic. Rubber is characterized by its abrasion resistance, pressure resistance, and acid and alkali resistance. Silicone is characterized by its high temperature resistance, abrasion resistance, and acid and alkali resistance. Nylon has excellent abrasion resistance, second only to silicone, while polyester is known for its heat resistance and sun resistance. Polypropylene is abundant and inexpensive. Acrylic is lightweight, elastic, high-density, and has good abrasion resistance.

[0079] Reference Figures 3 to 5In one embodiment, the airbag portion 120 and the support leg 110 are connected by a detachable structure. This detachable structure allows for more flexible connection between the airbag portion 120 and the support leg 110, enabling quick disassembly and replacement as needed. The detachable structure also facilitates maintenance and repair. When the airbag portion 120 or the support leg 110 malfunctions or requires replacement, repairs can be performed quickly through disassembly and reassembly, reducing repair time and costs. Furthermore, the detachable structure allows for easier adjustment and adaptation of the connection between the airbag portion 120 and the support leg 110. Finally, the detachable structure provides greater potential for functional expansion in the connection between the airbag portion 120 and the support leg 110.

[0080] In one embodiment, the detachable structure includes a threaded post 151 and a threaded hole adapted to the threaded post 151. One of the threaded post 151 and the threaded hole is located in the airbag portion 120, and the other is located in the support leg 110. Thus, the connection between the threaded post 151 and the threaded hole is a high-strength connection method, providing stable support and connection. This connection method ensures that the connection between the airbag portion 120 and the support leg 110 remains stable under various harsh environments, without loosening or detachment. Threaded connection is a common connection method, characterized by ease of installation and disassembly. By rotating the threaded post 151 and the threaded hole, the airbag portion 120 and the support leg 110 can be easily connected together, and disassembly can also be conveniently performed. This design reduces installation and maintenance time and costs. The standardized thread design and connection method ensure compatibility and interchangeability between different components. This design makes the components of the airbag portion 120 easier to manufacture and procure, reducing production and procurement costs.

[0081] The detachable structure includes a latching protrusion and a matching slot. One of the latching protrusion and slot is located in the airbag section 120, and the other is located in the support leg 110. The connection between the latching protrusion and slot is very simple; the connection is completed simply by inserting the latching protrusion into the slot. This design makes installation and disassembly very easy, requiring no complicated procedures. The connection between the latching protrusion and slot provides a stable connection. Because the latching protrusion and slot are designed to match each other, the connection is very tight, preventing loosening or detachment. The connection between the latching protrusion and slot has high reliability. Due to the simple connection method, the contact area between them is large, providing better support and stability.

[0082] Reference Figure 1 and Figure 2In one embodiment, the bottom of the support leg 110 gradually widens from top to bottom. This widening bottom increases the contact area between the support leg 110 and the carpet, thus providing better stability. This design reduces slippage and swaying of the support leg 110 on the ground, ensuring the airbag unit 120 remains stable under various driving conditions. The widening bottom design increases the contact area between the support leg 110 and the ground, thereby absorbing more impact force. In the event of a vehicle collision or when the airbag needs to deploy, this design reduces the impact on the airbag unit 120. The widening bottom design provides better support and stability, thereby reducing swaying and slippage of the airbag unit 120 during driving. This design improves the safety of the airbag unit 120, ensuring correct and timely deployment in emergency situations.

[0083] Reference Figure 1 and Figure 2 In one embodiment, the length of the vertical support leg 110 is adjustable. This design allows for adjustments to the length of the support leg 110 to accommodate different vehicle models, as the seat height varies from vehicle to vehicle, thus improving the adaptability and installation efficiency of the support structure 100. Adjusting the length of the support leg 110 provides more stable support. This design reduces slippage and wobbling of the support leg 110 on the ground, ensuring the airbag unit 120 remains stable under various conditions. Adjusting the length of the support leg 110 allows for better control of the airbag unit 120's posture and height during deployment. If the length of the support leg 110 needs adjustment or maintenance, the adjustable design facilitates this process. This design reduces maintenance time and costs, and improves the reliability and stability of the airbag unit 120.

[0084] Reference Figure 2 In one embodiment, the support leg 110 includes an outer sleeve 111, an inner sleeve 112, and a locking structure 113. An airbag portion 120 is installed at the bottom of the outer sleeve 111 and is fitted inside the outer sleeve 111. The top of the inner sleeve 112 is connected to the base 200 of the child safety seat 1000. The locking structure 113 is located between the outer sleeve 111 and the inner sleeve 112, and is used to lock and fix the inner sleeve 112 to the outer sleeve 111. Thus, the design of the support leg 110, including the outer sleeve 111, inner sleeve 112, and locking structure 113, facilitates adjustment of the length of the support leg 110 as needed, and is simple in structure and easy to operate.

[0085] Reference Figure 1 Secondly, this application also provides a child safety seat 1000, including the support structure 100 as described above.

[0086] According to the child safety seat 1000 of this application, when the child safety seat 1000 needs to be used, it is placed on the car seat with the support leg 110 abutting against the car carpet. The design of the support leg 110 ensures that the child safety seat 1000 remains stable during use, avoiding danger caused by shaking. In addition, in the event of a frontal collision, because the carpet is soft, it will be further deformed by the pressure of the support leg 110, making the child safety seat 1000 risky from flipping over. By switching the airbag part 120 from a contracted state to an inflated state, the inflated airbag part 120 will fill the deformation space of the carpet, preventing the child safety seat 1000 from flipping over due to the base 200 of the child safety seat 1000 not fitting properly with the rear seat cushion or the child safety seat 1000 being suspended in the air. The airbag part 120 quickly absorbs the energy generated by inertia, thereby reducing the probability of injury to the child occupant.

[0087] Reference Figure 1 and Figure 2In one embodiment, the child safety seat 1000 includes a base 200, a seat 300, a occupancy sensor, a pressure sensor 400, and a controller. The support structure 100 is mounted on the base 200, the seat 300 is mounted on the upper surface of the base 200, the occupancy sensor is mounted on the seat 300 to detect whether a child is sitting on the seat 300, the pressure sensor 400 is mounted on the support leg 110 to detect the pressure on the support leg 110, and the controller is electrically connected to the occupancy sensor and the pressure sensor 400. The controller controls the airbag 120 to switch from a contracted state to an inflated state based on the information parameters transmitted by the occupancy sensor and the pressure sensor 400. Thus, through the detection of the occupancy sensor and the pressure sensor 400, it is possible to more accurately determine whether a child is sitting on the child safety seat 1000 and the pressure condition of the support leg 110. This design ensures that the airbag 120 deploys to its inflated state when a collision occurs and a child is in seat 300, thus enabling the airbag 120 to deploy correctly and promptly, preventing the child safety seat 1000 from tipping over. The controller can control the airbag 120 to switch from a contracted to an inflated state based on information parameters from the occupancy sensor and pressure sensor 400. This design enables intelligent control, adjusting the state of the airbag 120 according to actual conditions, improving the adaptability and reliability of the airbag 120. By mounting the support structure 100 to the base 200, the seat 300 to the upper surface of the base 200, and the occupancy sensor to the seat 300, the installation and use of the child safety seat 1000 are made more convenient. Simultaneously, the electrical connection between the controller and the occupancy sensor and pressure sensor 400 facilitates data transmission and debugging, improving maintenance convenience. By employing advanced detection technologies such as the occupancy sensor and pressure sensor 400, false positives and false negatives are reduced, improving the accuracy and reliability of detection. At the same time, intelligent control of the controller can reduce the possibility of human error and improve the reliability of the entire system.

[0088] The control unit may include: a processor, such as a central processing unit (CPU), a communication bus, a user interface, a network interface, and memory. The communication bus is used to enable communication between these components. The user interface may include a display screen and an input unit such as a keyboard; optionally, the user interface may also include a standard wired interface or a wireless interface. The network interface may optionally include a standard wired interface or a wireless interface (such as a Wireless-Fidelity (Wi-Fi) interface). The memory may be high-speed random access memory (RAM) or stable non-volatile memory (NVM), such as a disk drive. Alternatively, the memory may be a storage device independent of the aforementioned processor.

[0089] Specifically, the network interface is mainly used for data communication with the network server; the user interface is mainly used for data interaction with the user; the processor and memory can be set in the charging device, and the processor calls the control program of the charging device stored in the memory and executes the control method of the charging device provided in the embodiments of the present invention.

[0090] It should be noted that when the support leg is extended, it can form a stable triangular support system with ISOFIX, ensuring that the child safety seat fits snugly against the rear seat cushion, preventing the seat from tipping over, and providing protection for the child occupant. Since ISOFIX technology is mature, it will not be described in detail here.

[0091] Those skilled in the art will understand that the above-described structure does not constitute a limitation on the control device, and may include more or fewer components, or combine certain components, or have different component arrangements.

[0092] Thirdly, this application also provides a control method based on the above-mentioned child safety seat 1000, including the following steps:

[0093] Step S20: Obtain pressure information and placeholder information;

[0094] Step S30: When the pressure information meets the preset pressure condition and the occupancy information meets the preset occupancy condition, control the airbag 120 to switch from the contracted state to the inflated state.

[0095] In this step, pressure information and position information are acquired. When the pressure information meets the preset pressure condition and the position information meets the preset position condition, the airbag 120 is controlled to switch from a contracted state to an inflated state. Thus, by acquiring the pressure and position information, it is possible to more accurately determine whether the airbag 120 needs to be triggered. The airbag 120 is only triggered when both the pressure and position information meet the preset conditions, ensuring correct and timely deployment when truly needed. Because the airbag 120 is only triggered when both the pressure and position information meet the preset conditions, false triggering is avoided. For example, if only the pressure information meets the condition but the position information does not, the airbag 120 will not be triggered. Precise triggering of the airbag 120 reduces false or missed triggering, thereby improving the reliability of the entire system. Furthermore, because the airbag 120 is only triggered when truly needed, misoperation or misuse of the airbag 120 is also reduced, further improving system reliability. By precisely switching the airbag 120 from a contracted state to an inflated state, the inflated airbag 120 fills the space deformed by the carpet, preventing the child safety seat 1000 from flipping over due to the misfit between the base 200 of the child safety seat 1000 and the rear seat cushion, or the child safety seat 1000 being suspended in the air. This quickly absorbs the energy generated by the inertia of the child safety seat 1000, thereby reducing the probability of injury to the child occupant.

[0096] It should be noted that the preset pressure and occupancy conditions can be adjusted according to different scenarios and needs. For example, the preset conditions can be adjusted to suit different needs and scenarios in different vehicle models, different seat layouts, or different passenger weights.

[0097] Specifically, before step S20, which involves obtaining pressure information and placeholder information, the following steps are also included:

[0098] Step S10: Obtain collision information, and the collision information meets the preset collision conditions.

[0099] In this step, subsequent pressure and occupancy information acquisition is only triggered when the collision information meets the preset collision conditions. This ensures that the airbag 120 is correctly and promptly deployed in the event of a collision, effectively preventing the child safety seat 1000 from rolling over. If the collision information does not meet the preset collision conditions, the subsequent pressure and occupancy information acquisition will not be triggered. This avoids accidental deployment of the airbag 120 in non-collision situations, thus preventing unnecessary interference caused by unintended airbag inflation. By acquiring collision information and determining whether it meets the preset conditions, the occurrence of accidental or missed deployments can be reduced, thereby improving the reliability of the entire system. It also reduces the possibility of misoperation or misuse of the airbag 120.

[0100] It should be noted that there are various types of collision information, which may include parameters such as vehicle acceleration, speed change, and collision time. These parameters can provide important information about the severity and type of collision.

[0101] In the embodiments of this application, the preset collision condition is a frontal collision. When the collision is determined to be a frontal collision based on the collision information, the pressure sensor 400 and the occupancy sensor transmit the collected signals to the controller. The controller identifies the pressure signal and whether a child occupant is riding in the vehicle. When the pressure between the support leg 110 and the vehicle floor reaches the preset pressure condition, the controller controls the inflation part 122 of the support structure 100 to inflate gas into the air inlet of the airbag body 121, causing the airbag body 121 to expand rapidly. This provides stable support for the support leg 110 of the child safety seat 1000, preventing the child safety seat 1000 from flipping over due to the base 200 of the child safety seat 1000 not fitting properly with the rear seat cushion and the child safety seat 1000 being suspended in the air. This rapidly absorbs the energy generated by the inertia of the child safety seat 1000, thereby reducing the probability of injury to the child occupant.

[0102] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0103] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0104] In the description of this application, "first feature" and "second feature" may include one or more of the features.

[0105] In the description of this application, "multiple" means two or more.

[0106] In the description of this application, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or it may include the first and second features not being in direct contact but being in contact through another feature between them.

[0107] In the description of this application, the terms "above," "over," and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher horizontal level than the second feature.

[0108] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0109] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A support structure suitable for child safety seats, characterized in that, The support structure includes: The support leg is used to connect to the base of the child safety seat, and the bottom of the support leg is provided with a storage groove with the opening facing downwards; An airbag portion is installed in the storage groove. The airbag portion has a contracted state and an inflated state. When the airbag portion is in the contracted state, the airbag portion is stored in the storage groove. When the airbag portion is in the inflated state, the airbag portion is at least partially extended out of the storage groove. The airbag portion includes: An airbag body, the airbag body having an air inlet, and the airbag body having a contracted state and an inflated state; An inflation part is installed in the storage slot, and the inflation part is used to inflate gas into the air inlet; The inflatable part is installed in the storage slot via a support part, the support part comprising: A support ring extends circumferentially along the inflatable portion and abuts against the airbag body when the airbag body is in the inflated state. A connecting arm extends along the diameter of the support ring, with both ends of the connecting arm connected to the support ring. The upper end face of the connecting arm is connected to the bottom wall of the storage groove, and the lower end face of the connecting arm is connected to the upper end face of the inflatable part. The airbag is used to switch from the contracted state to the inflated state in the event of a frontal collision with the child safety seat, so as to at least partially extend out of the storage slot and fill the space deformed by the carpet.

2. The support structure according to claim 1, characterized in that, The connecting arm is curved, and the middle part of the connecting arm is higher than both ends of the connecting arm.

3. The support structure according to claim 1 or 2, characterized in that, Multiple connecting arms are provided, and adjacent connecting arms are arranged at an angle.

4. The support structure according to any one of claims 1 to 2, characterized in that, The bottom of the airbag section is also provided with a protective pad; and / or, The airbag and the support leg are connected by a detachable structure; and / or, The bottom of the support leg gradually widens from top to bottom; and / or, The length of the support leg is adjustable along the vertical direction.

5. The support structure according to claim 4, characterized in that, The detachable structure includes a threaded post and a threaded hole adapted to the threaded post, wherein one of the threaded post and the threaded hole is located in the airbag portion, and the other is located in the support leg; or, The detachable structure includes a latch and a slot that matches the latch, one of which is located in the airbag portion and the other in the support leg.

6. The support structure according to claim 4, characterized in that, The supporting leg includes: An outer sleeve, the bottom of which is fitted with the airbag section; An inner sleeve is fitted inside the outer sleeve, and the top of the inner sleeve is used to connect to the base of the child safety seat; A locking structure is provided between the outer sleeve and the inner sleeve, the locking structure being used to lock and fix the inner sleeve and the outer sleeve together.

7. A child safety seat, characterized in that, Includes the support structure as described in any one of claims 1 to 6.

8. The child safety seat according to claim 7, characterized in that, Also includes: A base, on which the supporting structure is mounted; A seat is mounted on the upper surface of the base; A occupancy sensor is installed on the seat to detect whether a child is sitting in the seat; A pressure sensor is installed on the support leg, and the pressure sensor is used to detect the pressure on the support leg; The controller is electrically connected to the occupancy sensor and the pressure sensor, and the controller is used to control the airbag to switch from the contracted state to the inflated state according to the information parameters transmitted by the occupancy sensor and the pressure sensor.

9. A control method for a child safety seat as described in claim 8, characterized in that, Includes the following steps: Obtain pressure and placeholder information; When the pressure information meets the preset pressure condition and the occupancy information meets the preset occupancy condition, the airbag is controlled to switch from the contracted state to the inflated state.

10. The control method for a child safety seat according to claim 9, characterized in that, The steps preceding the acquisition of pressure information and occupancy information also include: Obtain collision information, and the collision information satisfies preset collision conditions.

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