Automobile seat back impact reinforcement structure

Abstract

The utility model provides a kind of automobile seat backrest impact reinforcement structure, it is related to seat backrest technical field, including backrest body, the lower surface inside backrest body is equipped with lower support frame in both sides, the upper surface inside backrest body is equipped with upper support frame in both sides, between two the lower support frame is equipped with several first reinforcing bars, between two the upper support frame is equipped with several second reinforcing bars, the lower support frame, upper support frame and first reinforcing bar, second reinforcing bar between are connected by buffer assembly, when car encounters rear-end collision, the first return spring in the installation sleeve is compressed, absorbs a large amount of initial impact energy, while the downward movement of upper support frame will be transmitted to second installation clamping plate by swing rod. The movement of swing rod will push two second installation clamping plate and the slider below it, so that it overcomes the elastic force of second return spring in sliding slot, further absorbs and disperses impact energy.

Description

Technical Field

[0001] This utility model relates to the field of seat back technology, and more specifically, to an impact-resistant reinforcement structure for automotive seat backs. Background Technology

[0002] Car seats are an important component for ensuring the safety of drivers and passengers. The seat back not only needs to provide comfortable support, but also needs to effectively resist impact in the event of a rear-end collision or other collision.

[0003] For example, patent application number CN201611263588.5 describes a car seat backrest, including a backrest support frame and an adjustment frame. The backrest support frame is provided with a slide rail, and the adjustment frame is provided with a slider slidably connected to the slide rail. A backrest body is sleeved on the support frame, and a movable backrest is sleeved on the adjustment frame. One side of the backrest body is provided with a groove, and the movable backrest is sleeved in the groove. This invention, using the above structure, has the following advantages: 1. When the seat width needs to be adjusted, pushing the movable backrest causes the adjustment frame to be stressed. The slider of the movable frame slides on the transverse slide rail of the backrest support frame, causing the movable backrest to move. One side of the movable backrest moves within the groove of the backrest body, widening or narrowing the total width of the backrest formed by the backrest body and the movable backrest; 2. The seat back width can be adjusted at any time according to the needs of the passenger, improving comfort.

[0004] In the aforementioned technical solutions, car seat backrests are typically reinforced with steel tubular frames or internal steel plates. While these structures provide a certain degree of rigidity, they often rely solely on the deformation of the material itself to absorb energy when facing high-intensity impacts, resulting in limited cushioning. The impact energy is then directly transferred to the occupant, leading to more severe injuries. Utility Model Content

[0005] The main objective of this invention is to provide an impact-resistant reinforcement structure for car seat backrests. This effectively addresses the problem in the prior art where car seat backrests are typically reinforced with steel tube frames or internal steel plates. While these structures provide a certain degree of rigidity, they often rely solely on the deformation of the material itself to absorb energy during high-intensity impacts, resulting in limited cushioning. The impact energy is then directly transferred to the occupant, leading to more severe injuries.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: an impact-resistant reinforcement structure for a car seat back, comprising a backrest body, with lower support frames installed on both sides of the lower inner surface of the backrest body, and upper support frames installed on both sides of the upper inner surface of the backrest body, a plurality of first reinforcing rods installed between the two lower support frames, and a plurality of second reinforcing rods installed between the two upper support frames, wherein the lower support frames, upper support frames, and the first and second reinforcing rods are connected by a buffer assembly.

[0007] Preferably, a mounting rod is installed on the upper surface of the backrest body, and a headrest is fitted onto the mounting rod.

[0008] Preferably, the buffer assembly includes several mounting sleeves, two first mounting clamps, and a sliding groove. The several mounting sleeves are fixedly installed at equal intervals on the upper surface of the lower support frame, the two first mounting clamps are installed opposite each other on the lower surface of the second reinforcing rod, and the sliding groove is formed on the upper surface of the first reinforcing rod.

[0009] Preferably, each of the mounting sleeves has a sliding rod slidably mounted inside, with the upper end of the sliding rod disposed on the lower surface of the upper support frame, and a first return spring mounted on the inner surface of the mounting sleeve, with the top end of the first return spring disposed on the lower end surface of the sliding rod.

[0010] Preferably, two sliders are slidably installed inside the groove, and a second return spring is fixedly installed between the two sliders.

[0011] Preferably, a second mounting plate is fixedly installed on the upper end of each of the two sliders.

[0012] Preferably, a pivot is rotatably mounted between the two first mounting plates and the second mounting plate, and a swing rod is hinged between the pivots of the first mounting plates and the second mounting plates located on the same side.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] (1) When a car is involved in a rear-end collision, the occupant's body will be pushed backward against the backrest body. The impact force is first transmitted to the slide bar through the upper support frame. The slide bar moves downward and compresses the first return spring in the mounting sleeve. This is the first stage of vertical buffering, which absorbs a large amount of initial impact energy. At the same time, the downward movement of the upper support frame is transmitted to the second mounting plate through the swing rod. The movement of the swing rod will push the two second mounting plates and the slider below them, causing them to overcome the elastic force of the second return spring in the sliding groove and slide in opposite directions. This process is the second stage of lateral buffering, which further absorbs and disperses the impact energy. Through the synergistic effect of the above two-stage buffering mechanism, the huge impact energy is effectively absorbed and dissipated. The force finally transmitted to the backrest frame has been greatly weakened, thereby greatly protecting the safety of the occupant's back and neck and reducing the risk of injury. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the impact-resistant reinforcement structure for a car seat back according to the present invention.

[0016] Figure 2This is a schematic diagram of the backrest body structure of an impact-resistant reinforcement structure for a car seat back according to this utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of the backrest body of a car seat backrest impact-resistant reinforcement structure according to the present invention.

[0018] Figure 4 This is a schematic diagram of the internal structure of the mounting sleeve for an impact-resistant reinforcement structure for a car seat back.

[0019] Figure 5 This is a schematic diagram of the second reinforcing bar structure of an impact-resistant reinforcement structure for a car seat back according to the present invention;

[0020] Figure 6 This is an enlarged structural diagram of point A of the impact-resistant reinforcement structure for a car seat back.

[0021] In the diagram: 1. Backrest body; 2. Mounting rod; 3. Headrest; 4. First reinforcing rod; 5. Lower support frame; 6. Upper support frame; 7. Second reinforcing rod; 8. Buffer assembly; 801. Mounting sleeve; 802. Slide rod; 803. First return spring; 804. First mounting clamp; 805. Rotating shaft; 806. Swing rod; 807. Second mounting clamp; 808. Slide groove; 809. Second return spring; 810. Slider. Detailed Implementation

[0022] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0023] like Figure 1 As shown, an impact-resistant reinforcement structure for a car seat back includes a backrest body 1. Lower support frames 5 are installed on both sides of the lower inner surface of the backrest body 1, and upper support frames 6 are installed on both sides of the upper inner surface of the backrest body 1. A plurality of first reinforcing rods 4 are installed between two lower support frames 5, and a plurality of second reinforcing rods 7 are installed between two upper support frames 6. The lower support frames 5, upper support frames 6, first reinforcing rods 4, and second reinforcing rods 7 are connected by a buffer assembly 8.

[0024] like Figure 1 As shown, an installation rod 2 is installed on the upper surface of the backrest body 1, and a headrest 3 is sleeved on the installation rod 2. The headrest 3 is adjustablely installed on the top of the backrest body 1 via the installation rod 2.

[0025] like Figure 2 , 3 As shown in Figures 4, 5, and 6, the buffer assembly 8 includes several mounting sleeves 801, two first mounting clamps 804, and a sliding groove 808. The mounting sleeves 801 are equidistantly fixed on the upper surface of the lower support frame 5. The two first mounting clamps 804 are oppositely mounted on the lower surface of the second reinforcing rod 7. The sliding groove 808 is formed on the upper surface of the first reinforcing rod 4. A sliding rod 802 is slidably mounted inside each mounting sleeve 801. The upper end of the sliding rod 802 is located on the lower surface of the upper support frame 6. A first return spring 803 is mounted on the inner surface of the mounting sleeve 801. The top of the spring 803 is located on the lower surface of the slide rod 802. Two sliders 810 are slidably installed inside the slide groove 808. A second return spring 809 is fixedly installed between the two sliders 810. A second mounting plate 807 is fixedly installed on the upper end of each of the two sliders 810. A rotating shaft 805 is rotatably installed between the two first mounting plates 804 and the second mounting plates 807. A swing rod 806 is hinged between the rotating shafts 805 on the same side of the first mounting plates 804 and the second mounting plates 807. The occupant's body will press backward against the backrest body 1. The impact force is first transmitted to the slide rod 802 through the upper support frame 6. The slide rod 802 moves downward, compressing the first return spring 803 inside the mounting sleeve 801. This is the first stage of vertical buffering, absorbing a large amount of initial impact energy. At the same time, the downward movement of the upper support frame 6 is transmitted to the second mounting plate 807 through the swing rod 806. The movement of the swing arm 806 pushes the two second mounting plates 807 and the slider 810 below them, causing them to slide in opposite directions or away from each other within the slide groove 808, overcoming the elastic force of the second return spring 809. This process is the second stage of lateral buffering, further absorbing and dispersing impact energy. Through the synergistic effect of the above two-stage buffering mechanisms, the huge impact energy is effectively absorbed and dissipated, and the force ultimately transmitted to the backrest frame is greatly weakened, thereby greatly protecting the safety of the occupant's back and neck, reducing the risk of injury. Furthermore, the backrest body 1 is equipped with several first reinforcing rods 4 and second reinforcing rods 7, which can further improve the stability of this device.

[0026] The working principle of this type of impact-resistant reinforcement structure for car seat backs:

[0027] In use, when a car is involved in a rear-end collision, the occupant's body will be pushed backward against the backrest body 1. The impact force is first transmitted to the slide bar 802 through the upper support frame 6. The slide bar 802 moves downward, compressing the first return spring 803 inside the mounting sleeve 801. This is the first stage of vertical buffering, absorbing a large amount of initial impact energy. At the same time, the downward movement of the upper support frame 6 is transmitted to the second mounting plate 807 through the swing rod 806. The movement of the swing rod 806 pushes the two second mounting plates 807 and the slider 810 below them, causing them to overcome the elastic force of the second return spring 809 within the sliding groove 808 and slide in opposite directions. This process is the second stage of lateral buffering, further absorbing and dispersing the impact energy. Through the synergistic effect of the above two-stage buffering mechanism, the huge impact energy is effectively absorbed and dissipated, and the force ultimately transmitted to the backrest frame is greatly weakened, thereby greatly protecting the occupant's back and neck safety and reducing the risk of injury.

[0028] The above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. For those skilled in the art, other variations or modifications can be made based on the above description. It is impossible to exhaustively list all the implementation methods here. Any obvious variations or modifications derived from the technical solutions of this utility model are still within the protection scope of this utility model.

Claims

1. An impact-resistant reinforcement structure for a car seat back, comprising a backrest body (1), characterized in that: The backrest body (1) has a lower support frame (5) installed on both sides of the lower inner surface, and an upper support frame (6) installed on both sides of the upper inner surface. A number of first reinforcing rods (4) are installed between the two lower support frames (5), and a number of second reinforcing rods (7) are installed between the two upper support frames (6). The lower support frame (5), the upper support frame (6), the first reinforcing rods (4), and the second reinforcing rods (7) are connected by a buffer assembly (8).

2. The impact-resistant reinforcement structure for a car seat back as described in claim 1, characterized in that; An installation rod (2) is installed on the upper surface of the backrest body (1), and a headrest (3) is sleeved on the installation rod (2).

3. The impact-resistant reinforcement structure for a car seat back as described in claim 1, characterized in that: The buffer assembly (8) includes several mounting sleeves (801), two first mounting clamps (804), and a sliding groove (808). Several mounting sleeves (801) are fixedly installed at equal intervals on the upper surface of the lower support frame (5). The two first mounting clamps (804) are installed opposite each other on the lower surface of the second reinforcing rod (7). The sliding groove (808) is opened on the upper surface of the first reinforcing rod (4).

4. The impact-resistant reinforcement structure for a car seat back as described in claim 3, characterized in that; Each of the mounting sleeves (801) has a sliding rod (802) slidably mounted inside. The upper end of the sliding rod (802) is located on the lower surface of the upper support frame (6). A first return spring (803) is installed on the inner surface of the mounting sleeve (801), and the top end of the first return spring (803) is located on the lower surface of the sliding rod (802).

5. The impact-resistant reinforcement structure for a car seat back as described in claim 4, characterized in that: Two sliders (810) are slidably installed inside the groove (808), and a second return spring (809) is fixedly installed between the two sliders (810).

6. The impact-resistant reinforcement structure for a car seat back as described in claim 5, characterized in that: A second mounting plate (807) is fixedly installed on the upper end of each of the two sliders (810).

7. The impact-resistant reinforcement structure for a car seat back as described in claim 6, characterized in that: A pivot (805) is rotatably mounted between the two first mounting plates (804) and the second mounting plates (807), and a swing rod (806) is hinged between the pivots (805) of the first mounting plates (804) and the second mounting plates (807) on the same side.

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