A side impact protection structure for automobile seats

Abstract

The present invention relates to the field of automobile seats, and specifically discloses an anti-side impact protection structure for automobile seats; the present invention provides a mounting base under the seat cushion, and simultaneously provides a bracket telescopic cylinder and a connecting rod on the mounting base, and simultaneously provides a mounting frame, a card slot and a limit assembly on the connecting rod; the seat cushion is connected to the mounting frame through a slider, and the innermost limit assembly limits the position of the seat cushion through the slider; when the vehicle is hit, the limit assembly on the side away from the impact is triggered to release the restriction on the slider; after the seat cushion receives the kinetic energy of the impact and generates displacement, the seat cushion drives the slider to slide on the mounting frame; the limit assembly at the far end can limit the position of the slider after sliding, and further limit the position of the seat cushion, so that the seat cushion slides and stays on the side away from the impact source, thereby keeping the passengers away from the impact source, avoiding the door structure that collapses at the impact source from causing harm to the passengers, forming effective protection for the passengers, and avoiding the side impact of the vehicle from causing greater harm to the passengers.

Description

Technical Field

[0001] The invention belongs to the technical field of automobile seats, and in particular relates to an anti-side impact protection structure for automobile seats. Background Art

[0002] Modern cars have very high requirements for safety performance. Since the passenger seats are mostly located in the middle of the car, the front of the car is the engine compartment and the rear of the car is the trunk. When the car is hit from the front or back, the engine compartment and the trunk can collapse and absorb energy, thereby reducing the impact on the people inside the cockpit. However, there are only doors on the sides of the vehicle's cockpit. When the vehicle is hit from the side, the vehicle structure is easily deformed. In severe cases, it will directly invade the interior of the cockpit and cause harm to the people inside the car.

[0003] Existing vehicles have few protective structures to prevent side impacts. A common means of preventing side impacts is to install side airbags on the sides of the vehicle body to reduce the side impact on passengers. However, in some situations where the side impact force is large, the side doors will invade the vehicle interior, squeezing the interior space. Since passengers are sitting on car seats, although seat belts protect the personal safety of passengers to a certain extent, seat belts and side airbags are still not enough to prevent the collapsed door structure from injuring passengers on the seats. Therefore, it is necessary to design a new structure to protect passengers inside the vehicle from side impacts. Summary of the Invention

[0004] In order to overcome the deficiencies of the prior art, the present invention aims to provide a side impact protection structure for a car seat to solve the problem that the existing structure is insufficient to prevent the collapsed side door structure from injuring the seat occupant.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A side impact protection structure for a car seat, comprising:

[0007] a seat cushion, wherein the seat cushion is connected to a side support and a back cushion;

[0008] The mounting base is mounted on the car, and the mounting base is connected to a plurality of bracket telescopic cylinders whose upper ends abut against the seat cushion, an airbag is provided inside the bracket telescopic cylinder, a connecting rod is connected between two bracket telescopic cylinders on the same side, a mounting frame is fixedly connected to the connecting rod, a plurality of slots are provided on the mounting frame, a limiting assembly that is engaged in the slots is connected to the mounting frame, and a slider that is slidably connected to the mounting frame is connected to the seat cushion.

[0009] Preferably, the limiting assembly includes a mounting plate fixedly mounted on the mounting frame, a side plate connected to the mounting plate, and a clamping block connected to the side plate, the clamping block being clamped inside the clamping slot, and the clamping block being arranged in an arc shape toward one side of the middle of the mounting frame.

[0010] Preferably, an outer cylinder is connected to the mounting plate, and a T-shaped rod is slidably connected to the end of the outer cylinder, and the end of the T-shaped rod abuts against the inner wall of the side plate, and a spring is sleeved on the T-shaped rod, one end of the spring abuts against the inner wall of the T-shaped rod, and the other end abuts against the inner wall of the outer cylinder, and an air cavity is provided between the inner wall of the outer cylinder and the end of the T-shaped rod.

[0011] Preferably, a four-way pipe block is fixedly connected to the mounting base, an air supply pipe is connected between the four-way pipe block and the airbag, electric opening and closing valves are respectively connected to both sides of the four-way pipe block, an air guide pipe is connected between the electric opening and closing valve on each side and the mounting frame, and the end of the air guide pipe is connected to the air cavity.

[0012] Preferably, the end of the side panel is provided with a gradually beveled edge.

[0013] Preferably, a sliding frame is connected to the mounting base, an L-shaped slide is slidably connected inside the sliding frame, a support rod is fixedly connected to the end of the slide, and the support rod is inserted into the inside of the side support.

[0014] Preferably, the innermost block abuts against the slider.

[0015] Preferably, the side plate is made of spring steel, and a gap is left between the straight side surface of the clamping block and the clamping slot.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The present invention provides a mounting base under the seat cushion, and a bracket telescopic cylinder and a connecting rod are provided on the mounting base, and a mounting frame, a slot and a limit assembly are provided on the connecting rod. The seat cushion is connected to the mounting frame through a slider, and the innermost limit assembly limits the position of the seat cushion through the slider. When the vehicle is hit, the limit assembly on the side away from the impact is triggered to release the restriction on the slider. After the seat cushion receives the kinetic energy of the impact and generates displacement, the seat cushion drives the slider to slide on the mounting frame. The limit assembly at the far end can limit the position of the slider after sliding, and then limit the position of the seat cushion, so that the seat cushion slides and stays on the side away from the impact source, thereby keeping the passengers away from the impact source, avoiding the door structure that collapses at the impact source from causing harm to the passengers, forming effective protection for the passengers, and avoiding the side impact of the vehicle from causing greater harm to the passengers. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 It is a schematic diagram of the overall cross-sectional structure of the present invention;

[0020] Figure 3 The cross-sectional structure of the seat cushion of the present invention is shown in FIG. Figure 1 ;

[0021] Figure 4 The cross-sectional structure of the seat cushion of the present invention is shown in FIG. Figure 2 ;

[0022] Figure 5 This is a schematic cross-sectional structure diagram of the telescopic cylinder of the bracket of the present invention;

[0023] Figure 6 It is a schematic structural diagram of the limit assembly of the present invention;

[0024] In the figure: 1. Seat cushion; 2. Side support; 3. Back cushion; 4. Mounting base; 5. Sliding frame; 6. Slide plate; 7. Support rod; 8. Bracket telescopic cylinder; 9. Air bag; 10. Air pipe; 11. Four-way pipe block; 12. Electric opening and closing valve; 13. Air guide pipe; 14. Connecting rod; 15. Mounting frame; 16. Slot; 17. Limiting assembly; 171. Mounting plate; 172. Side plate; 173. Block; 174. Outer cylinder; 175. T-bar; 176. Spring; 18. Slider. DETAILED DESCRIPTION

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] Example 1:

[0027] See also Figures 1-6 As shown, a side impact protection structure for a car seat includes:

[0028] A seat cushion 1 is connected to a side support 2 and a back cushion 3. The side support 2 can provide support for the legs of the occupant to prevent the occupant from sliding off the seat cushion 1.

[0029] The mounting base 4 is mounted on the car, and the mounting base 4 is connected to a plurality of bracket telescopic cylinders 8 whose upper ends abut against the seat cushion 1. An airbag 9 is arranged inside the bracket telescopic cylinder 8. The airbag 9 is in an expanded state when the vehicle is not hit. The airbag 9 is provided with a trigger assembly. When the vehicle is hit, the trigger assembly starts to release the gas of the airbag 9, thereby causing the seat cushion 1 to move downward, lowering the center of gravity of the occupants, increasing the occupants' activity space, and preventing the occupants from being stuck inside the passenger compartment. A connecting rod 14 is connected between the two bracket telescopic cylinders 8 on the same side, and a mounting frame 15 is fixedly connected to the connecting rod 14. A plurality of slots 16 are provided on the mounting frame 15. A limiting assembly 17 that is engaged in the slot 16 is connected to the mounting frame 15, and a slider 18 that is slidably connected to the mounting frame 15 is connected to the seat cushion 1.

[0030] As can be seen from the above, when the side of the vehicle is hit, the vehicle impact information serves as a trigger condition to trigger the limit component 17, so that the limit component 17 away from the side of the vehicle that is hit is triggered, and at the same time, the impact kinetic energy received by the vehicle will be transmitted to the seat cushion 1, and the seat cushion 1 that absorbs the kinetic energy drives the slider 18 to slide on the mounting frame 15, so that the seat cushion 1 is away from the side of the vehicle that is hit. When the slider 18 slides to the farthest end of the mounting frame 15, the farthest limit component 17 will jam the slider 18 to prevent the slider 18 from rebounding, thereby causing the seat cushion 1 to slide and stop at the farthest end of the mounting frame 15, so that the occupant on the seat cushion 1 stays on the side away from the vehicle impact source, reducing the damage caused to the occupant on the seat cushion 1 by the vehicle impact.

[0031] See also Figure 3-Figure 6 As shown, the limiting assembly 17 includes a mounting plate 171 fixedly mounted on the mounting frame 15, a side plate 172 connected to the mounting plate 171 and a block 173 connected to the side plate 172. The block 173 is clamped inside the slot 16, and the block 173 is arranged in an arc shape toward one side of the middle of the mounting frame 15. When the seat cushion 1 drives the slider 18 to slide on the mounting frame 15, the slider 18 will abut against the end of the block 173 extending out of the slot 16. The slider 18 with kinetic energy will squeeze the block 173 into the slot 16 through the curved side surface of the block 173, and the block 173 forces the side plate 172 to deform. When the slider 18 slides over the block 173, the side plate 172 resets and drives the block 173 to extend out of the slot 16 again. The straight side surface of the block 173 will abut against the slider 18 to prevent the slider 18 from sliding back, so that the position of the seat cushion 1 stays at the end of the mounting frame 15 away from the impact.

[0032] The mounting plate 171 is connected to an outer cylinder 174, and a T-shaped rod 175 is slidably connected to the end of the outer cylinder 174. The end of the T-shaped rod 175 abuts against the inner wall of the side plate 172, and a spring 176 is sleeved on the T-shaped rod 175. One end of the spring 176 abuts against the inner wall of the T-shaped rod 175, and the other end abuts against the inner wall of the outer cylinder 174. An air cavity is provided between the inner wall of the outer cylinder 174 and the end of the T-shaped rod 175, and the innermost block 173 abuts against the slider 18.

[0033] As can be seen from the above, when no gas enters the air cavity, the T-shaped rod 175 is only subjected to the force of the spring 176. At this time, the T-shaped rod 175 is located inside the outer cylinder 174, and the end of the T-shaped rod 175 is clamped between the two side plates 172 to prevent the side plates 172 from bending and deforming inward, thereby making the clamping block 173 stably clamped inside the clamping groove 16, thereby limiting the sliding of the slider 18, preventing the slider 18 from sliding when not hit, and maintaining the position of the seat cushion 1 stable. When the vehicle is hit, the air cavity is inflated, and the gas drives the T-shaped rod 175 to slide and press The compression spring 176 causes the sliding T-bar 175 to break away from the contact with the side plate 172, so that the side plate 172 can be deformed after the block 173 is subjected to force, which facilitates the sliding of the slider 18 on the mounting frame 15. The end of the side plate 172 is provided with a gradual bevel. When the slider 18 slides over the block 173, the air cavity is deflated, and the compressed spring 176 is reset to drive the T-bar 175 to slide. The end of the T-bar 175 slides over the gradual bevel of the side plate 172 and returns to between the side plates 172, thereby stably limiting the position of the block 173 and preventing the slider 18 from sliding back.

[0034] See also Figure 3-Figure 4 As shown, a four-way pipe block 11 is fixedly connected to the mounting base 4, an air supply pipe 10 is connected between the four-way pipe block 11 and the airbag 9, electric opening and closing valves 12 are connected to both sides of the four-way pipe block 11, and an air guide pipe 13 is connected between the electric opening and closing valve 12 and the mounting frame 15 on each side, and the end of the air guide pipe 13 is connected to the air cavity.

[0035] As can be seen from the above, when the vehicle is hit, the electric opening and closing valve 12 on the side away from the impact of the vehicle opens, and the gravity of the seat cushion 1 and the passenger presses the bracket telescopic cylinder 8 downward, so that the bracket telescopic cylinder 8 compresses the airbag 9, and the gas in the airbag 9 is transmitted to the four-way pipe block 11 through the air supply pipe 10, and is transmitted to the air cavity through the four-way pipe block 11, the electric opening and closing valve 12 and the air guide pipe 13, thereby triggering the limit component 17, and taking the vehicle impact as the triggering condition of the electric opening and closing valve 12. The relevant structure can adopt the existing structure, such as setting the normal state of the electric opening and closing valve 12 to be closed, and when the vehicle is hit, the power is turned off and opened as the triggering state. After the electric opening and closing valve 12 is triggered, the gas of the airbag 9 is closed, causing the bracket telescopic cylinder 8 to shrink and become shorter, lowering the center of gravity of the seat cushion 1 and the passenger, and triggering the limit component 17, so that the seat cushion 1 slides and stays at a distance, thereby enhancing the protection effect.

[0036] Example 2:

[0037] See also Figures 1-6 As shown, a side impact protection structure for a car seat includes:

[0038] A seat cushion 1 is connected to a side support 2 and a back cushion 3. The side support 2 can provide support for the legs of the occupant to prevent the occupant from sliding off the seat cushion 1.

[0039] The mounting base 4 is mounted on the car, and the mounting base 4 is connected to a plurality of bracket telescopic cylinders 8 whose upper ends abut against the seat cushion 1. An airbag 9 is arranged inside the bracket telescopic cylinder 8. The airbag 9 is in an expanded state when the vehicle is not hit. The airbag 9 is provided with a trigger assembly. When the vehicle is hit, the trigger assembly starts to release the gas of the airbag 9, thereby causing the seat cushion 1 to move downward, lowering the center of gravity of the occupants, increasing the occupants' activity space, and preventing the occupants from being stuck inside the passenger compartment. A connecting rod 14 is connected between the two bracket telescopic cylinders 8 on the same side, and a mounting frame 15 is fixedly connected to the connecting rod 14. A plurality of slots 16 are provided on the mounting frame 15. A limiting assembly 17 that is engaged in the slot 16 is connected to the mounting frame 15, and a slider 18 that is slidably connected to the mounting frame 15 is connected to the seat cushion 1.

[0040] As can be seen from the above, when the side of the vehicle is hit, the vehicle impact information serves as a trigger condition to trigger the limit component 17, so that the limit component 17 away from the side of the vehicle that is hit is triggered, and at the same time, the impact kinetic energy received by the vehicle will be transmitted to the seat cushion 1, and the seat cushion 1 that absorbs the kinetic energy drives the slider 18 to slide on the mounting frame 15, so that the seat cushion 1 is away from the side of the vehicle that is hit. When the slider 18 slides to the farthest end of the mounting frame 15, the farthest limit component 17 will jam the slider 18 to prevent the slider 18 from rebounding, thereby causing the seat cushion 1 to slide and stop at the farthest end of the mounting frame 15, so that the occupant on the seat cushion 1 stays on the side away from the vehicle impact source, reducing the damage caused to the occupant on the seat cushion 1 by the vehicle impact.

[0041] See also Figure 3-Figure 6 As shown, the limiting assembly 17 includes a mounting plate 171 fixedly mounted on the mounting frame 15, a side plate 172 connected to the mounting plate 171 and a block 173 connected to the side plate 172. The block 173 is clamped inside the slot 16, and the block 173 is arranged in an arc shape toward one side of the middle of the mounting frame 15. When the seat cushion 1 drives the slider 18 to slide on the mounting frame 15, the slider 18 will abut against the end of the block 173 extending out of the slot 16. The slider 18 with kinetic energy will squeeze the block 173 into the slot 16 through the curved side surface of the block 173, and the block 173 forces the side plate 172 to deform. When the slider 18 slides over the block 173, the side plate 172 resets and drives the block 173 to extend out of the slot 16 again. The straight side surface of the block 173 will abut against the slider 18 to prevent the slider 18 from sliding back, so that the position of the seat cushion 1 stays at the end of the mounting frame 15 away from the impact.

[0042] The mounting plate 171 is connected to an outer cylinder 174, and a T-shaped rod 175 is slidably connected to the end of the outer cylinder 174. The end of the T-shaped rod 175 abuts against the inner wall of the side plate 172, and a spring 176 is sleeved on the T-shaped rod 175. One end of the spring 176 abuts against the inner wall of the T-shaped rod 175, and the other end abuts against the inner wall of the outer cylinder 174. An air cavity is provided between the inner wall of the outer cylinder 174 and the end of the T-shaped rod 175, and the innermost block 173 abuts against the slider 18.

[0043] As can be seen from the above, when no gas enters the air cavity, the T-shaped rod 175 is only subjected to the force of the spring 176. At this time, the T-shaped rod 175 is located inside the outer cylinder 174, and the end of the T-shaped rod 175 is clamped between the two side plates 172 to prevent the side plates 172 from bending and deforming inward, thereby making the clamping block 173 stably clamped inside the clamping groove 16, thereby limiting the sliding of the slider 18, preventing the slider 18 from sliding when not hit, and maintaining the position of the seat cushion 1 stable. When the vehicle is hit, the air cavity is inflated, and the gas drives the T-shaped rod 175 to slide and press The compression spring 176 causes the sliding T-bar 175 to break away from the contact with the side plate 172, so that the side plate 172 can be deformed after the block 173 is subjected to force, which facilitates the sliding of the slider 18 on the mounting frame 15. The end of the side plate 172 is provided with a gradual bevel. When the slider 18 slides over the block 173, the air cavity is deflated, and the compressed spring 176 is reset to drive the T-bar 175 to slide. The end of the T-bar 175 slides over the gradual bevel of the side plate 172 and returns to between the side plates 172, thereby stably limiting the position of the block 173 and preventing the slider 18 from sliding back.

[0044] See also Figure 3-Figure 4 As shown, a four-way pipe block 11 is fixedly connected to the mounting base 4, an air supply pipe 10 is connected between the four-way pipe block 11 and the airbag 9, electric opening and closing valves 12 are connected to both sides of the four-way pipe block 11, and an air guide pipe 13 is connected between the electric opening and closing valve 12 and the mounting frame 15 on each side, and the end of the air guide pipe 13 is connected to the air cavity.

[0045] As can be seen from the above, when the vehicle is hit, the electric opening and closing valve 12 on the side away from the impact of the vehicle opens, and the gravity of the seat cushion 1 and the passenger presses the bracket telescopic cylinder 8 downward, so that the bracket telescopic cylinder 8 compresses the airbag 9, and the gas in the airbag 9 is transmitted to the four-way pipe block 11 through the air supply pipe 10, and is transmitted to the air cavity through the four-way pipe block 11, the electric opening and closing valve 12 and the air guide pipe 13, thereby triggering the limit component 17, and taking the vehicle impact as the triggering condition of the electric opening and closing valve 12. The relevant structure can adopt the existing structure, such as setting the normal state of the electric opening and closing valve 12 to be closed, and when the vehicle is hit, the power is turned off and opened as the triggering state. After the electric opening and closing valve 12 is triggered, the gas of the airbag 9 is closed, causing the bracket telescopic cylinder 8 to shrink and become shorter, lowering the center of gravity of the seat cushion 1 and the passenger, and triggering the limit component 17, so that the seat cushion 1 slides and stays at a distance, thereby enhancing the protection effect.

[0046] The mounting base 4 is connected to a sliding frame 5, and an L-shaped slide plate 6 is slidably connected inside the sliding frame 5. The end of the slide plate 6 is fixedly connected to a supporting rod 7, and the supporting rod 7 is inserted into the side support 2. When the position of the seat cushion 1 is lowered, the position of the supporting rod 7 remains unchanged. At this time, the supporting rod 7 will lift the side support 2 upward to increase the height of the side support 2, so that the side support 2 can wrap the legs of the occupants over a larger area, thereby preventing the occupants from falling off the seat after being hit, thereby improving the safety of the occupants.

[0047] The side plate 172 is made of spring steel, which facilitates the deformation and restoration of the side plate 172 , and a gap is left between the straight side surface of the clamping block 173 and the clamping slot 16 , which can provide a moving gap for the deformation of the side plate 172 and the displacement of the clamping block 173 .

[0048] All standard parts used in the present invention can be purchased commercially, and special-shaped parts can be customized according to the description in the specification and drawings. The specific connection methods of each part adopt conventional means such as bolts, rivets, welding, etc. that are mature in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art. In addition, the circuit connections adopt conventional connection methods in the prior art and will not be described in detail here. Any matters not described in detail in this specification belong to the prior art known to professionals in this field.

[0049] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. "Multiple" means two or more, unless otherwise specifically defined.

[0050] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0051] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0052] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0053] In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other.

Claims

1. A car seat side impact protection structure, characterized in that: include: A seat cushion (1), wherein the seat cushion (1) is connected to a side support (2) and a back cushion (3); A mounting base (4) is mounted on a car, and the mounting base (4) is connected to a plurality of bracket telescopic cylinders (8) whose upper ends abut against the seat cushion (1), an air bag (9) is provided inside the bracket telescopic cylinder (8), a connecting rod (14) is connected between two bracket telescopic cylinders (8) on the same side, a mounting frame (15) is fixedly connected to the connecting rod (14), a plurality of slots (16) are provided on the mounting frame (15), a limiting assembly (17) that is engaged in the slots (16) is connected to the mounting frame (15), and a slider (18) that is slidably connected to the mounting frame (15) is connected to the seat cushion (1); The limiting assembly (17) comprises a mounting plate (171) fixedly mounted on the mounting frame (15), a side plate (172) connected to the mounting plate (171), and a clamping block (173) connected to the side plate (172), wherein the clamping block (173) is clamped inside the clamping slot (16), and the clamping block (173) is arranged in an arc shape on one side toward the middle of the mounting frame (15); An outer cylinder (174) is connected to the mounting plate (171), and a T-shaped rod (175) is slidably connected to the end of the outer cylinder (174). The end of the T-shaped rod (175) abuts against the inner wall of the side plate (172), and a spring (176) is sleeved on the T-shaped rod (175). One end of the spring (176) abuts against the inner wall of the T-shaped rod (175) and the other end abuts against the inner wall of the outer cylinder (174). An air cavity is provided between the inner wall of the outer cylinder (174) and the end of the T-shaped rod (175). The innermost block (173) abuts against the slider (18).

2. The side impact protection structure for a car seat according to claim 1, characterized in that: A four-way pipe block (11) is fixedly connected to the mounting base (4), an air delivery pipe (10) is connected between the four-way pipe block (11) and the air bag (9), electric opening and closing valves (12) are connected to both sides of the four-way pipe block (11), an air guide pipe (13) is connected between the electric opening and closing valve (12) on each side and the mounting frame (15), and an end of the air guide pipe (13) is communicated with the air cavity.

3. The side impact protection structure for a car seat according to claim 1, characterized in that: The end of the side plate (172) is provided with a gradually beveled edge.

4. The side impact protection structure for a car seat according to claim 1, characterized in that: The mounting base (4) is connected to a sliding frame (5), an L-shaped slide plate (6) is slidably connected inside the sliding frame (5), an end of the slide plate (6) is fixedly connected to a support rod (7), and the support rod (7) is inserted into the side support (2).

5. The side impact protection structure for a car seat according to claim 1, characterized in that: The side plate (172) is made of spring steel, and a gap is left between the straight side surface of the clamping block (173) and the clamping slot (16).

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