Energy-absorbing protection mechanism for automobile seat

Abstract

The utility model provides an automobile seat energy absorption protection mechanism which comprises an automobile seat, a headrest and a supporting column, the headrest is fixedly installed in the middle of the upper portion of the automobile seat through the supporting column, the headrest comprises a rear shell, a protection pillow and an inner cavity, the bottom end of the rear shell is fixedly connected with the automobile seat through the supporting column, and the inner cavity is formed in the rear shell. A protection pillow is arranged in the inner cavity through an energy absorption protection assembly, the protection pillow is arranged on the front side of the inner cavity of the rear shell, the energy absorption protection assembly is arranged in the rear shell, the telescopic function of the protection pillow on the front side of the rear shell is achieved through the energy absorption protection assembly, and the moment that an automobile is subjected to rear-end collision is detected through a detection device. By driving the energy absorption protection assembly, the protection pillow actively extends out by a certain distance to make contact with the head of a driver, the distance between the head and the headrest is shortened, the impact force generated when the head leans backwards is greatly reduced, the impact force borne by inertia is reduced, harm to people is reduced, and the protection effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile interior accessories, and particularly relates to an energy-absorbing protection mechanism for an automobile seat. Background Technique

[0002] With the development of automobile technology and the improvement of living standards, people have higher and higher requirements for the comfort and appearance of automobile seats, and require the seat to maintain the stability of the headrest under various road conditions and various engine speed conditions without generating resonance with the vehicle body to cause noise.

[0003] In the prior art, the headrest above the automobile seat is fixedly installed above it through a pillar. Due to the overall fixation of the headrest, there is a certain distance between the head of the driver or passenger and the headrest. When the automobile is rear-ended, due to inertia during the rear-end process, the head of the driver or passenger will fall backward passively and directly hit the headrest at a certain distance behind, increasing the impact of the head's backward movement, causing physical injuries caused by the head's instantaneous backward movement of the personnel, and reducing the protection effect. Content of the Utility Model

[0004] The purpose of the utility model is to provide an energy-absorbing protection mechanism for an automobile seat to solve the problems put forward in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] An energy-absorbing protection mechanism for an automobile seat, comprising an automobile seat, a headrest and a pillar. The headrest is fixedly installed at the center above the automobile seat through the pillar. The headrest includes a rear shell, a protection pillow and an inner cavity. The bottom end of the rear shell is fixedly connected to the automobile seat through the pillar, and an inner cavity is arranged inside the rear shell. A protection pillow is arranged inside the inner cavity through an energy-absorbing protection component. The protection pillow is arranged on the front side of the inner cavity of the rear shell;

[0007] The energy-absorbing protection component realizes the telescopic movement of the protection pillow, so that the protection pillow is pushed forward to fit with the head of the driver at the moment when the automobile is rear-ended, greatly reducing the impact force of the head's backward movement, reducing the impact force of inertia, reducing the injury of personnel, and improving the protection effect.

[0008] Preferably, the energy-absorbing protection component includes a servo motor, a small gear, a support shaft, an eccentric wheel and a large gear. The servo motor is fixedly installed on both sides of the inner cavity, and a small gear is fixedly installed at the output end of the servo motor. The small gear is meshed with a large gear fixedly installed above one side of the eccentric wheel. The inner part above one side of the eccentric wheel is rotationally connected to a support shaft fixedly installed in the inner cavity.

[0009] Preferably, a stretching sliding surface and a positioning sliding surface are arranged on the outer side of the eccentric wheel.

[0010] Preferably, the energy-absorbing protection component further includes a slider, a support rod, and a first spring. The slider is slidably disposed in the inner cavity, and the front end of the slider is fixedly connected to the middle of the back surface of the protection pillow through the support rod. First springs are provided between the two sides of the rear end of the slider and the front end of the inner cavity. The first spring includes a spring body, a first mounting ring, and a second mounting ring. The first mounting ring and the second mounting ring are fixedly installed at both ends of the spring body.

[0011] Preferably, the inside of the second mounting ring is rotatably connected to the sliding columns fixedly installed on both sides of the rear end of the slider. The side wall of the sliding column is slidably connected to the stretching sliding surface and the positioning sliding surface. The inside of the first mounting ring is rotatably connected to the fixed column, and the fixed column is fixedly installed on both sides of the front end of the inner cavity.

[0012] Preferably, the upper and lower interiors of the slider are slidably connected to the bottom end of the T-shaped slide rail. The top end of the T-shaped slide rail is fixedly installed in the inner cavity through a fixing plate.

[0013] Preferably, buffer members are provided between the four corners of the back surface of the protection pillow and the inner cavity. The buffer members include support cylinders, sliding rods, and second springs. The support cylinders are fixedly installed at the four corners of the inner cavity, and the inside of the support cylinders is slidably connected to the sliding rods fixedly installed at the four corners of the back surface of the protection pillow. Second springs are provided between the ends of the sliding rods and the inside of the support cylinders.

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

[0015] 1. By providing an energy-absorbing protection component inside the rear shell, the function of telescoping the protection pillow on the front side of the rear shell is realized by using the energy-absorbing protection component. When it is detected by the detection device that the vehicle is rear-ended, the protection pillow is pushed forward by driving the energy-absorbing protection component, so that the protection pillow actively extends a certain distance to contact the driver's head, shortening the distance between the head and the headrest, greatly reducing the impact force of the head tilting backward, reducing the impact force received due to inertia, enabling the protection pillow to fit more closely with the driver's head, greatly reducing the impact force of the head tilting backward, reducing the impact force of inertia, reducing the injury of personnel, and improving the protection effect;

[0016] 2. By providing buffer members between the four corners of the back surface of the protection pillow and the inner cavity of the rear shell, the stability of the protection pillow is ensured, and the energy-absorbing protection effect of the protection pillow is enhanced. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of the present utility model.

[0018] Figure 2 is a schematic diagram of the internal structure of a cross-section of one side of the rear shell of the present utility model.

[0019] Figure 3 This is a schematic diagram of the internal structure of the upper part of the rear shell of the present utility model in a sectional view.

[0020] Figure 4 This is a schematic diagram of the structure in the inner cavity of the present utility model.

[0021] Figure 5 This is a schematic diagram of the sectional view and side view of the headrest of the present utility model.

[0022] In the figure: 1, automobile seat; 2, headrest; 201, rear shell; 202, protective pillow; 203, inner cavity; 3, pillar; 4, energy absorption and protection component; 401, servo motor; 402, pinion gear; 403, support shaft; 404, eccentric wheel; 4041, stretching sliding surface; 4042, positioning sliding surface; 405, large gear; 406, slider; 407, support rod; 408, first spring; 4081, spring body; 4082, first mounting ring; 4083, second mounting ring; 5, buffer; 501, support cylinder; 502, sliding rod; 503, second spring; 6, fixing plate; 7, T-shaped sliding rail; 8, sliding column; 9, fixing column. Specific embodiments

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] Please refer to Figures 1-5 , the present utility model provides a technical solution:

[0025] Embodiment 1:

[0026] An energy absorption and protection mechanism for an automobile seat includes an automobile seat 1, a headrest 2 and a pillar 3. The headrest 2 is fixedly installed above the center of the automobile seat 1 through the pillar 3. The headrest 2 includes a rear shell 201, a protective pillow 202 and an inner cavity 203. The bottom end of the rear shell 201 is fixedly connected to the automobile seat 1 through the pillar 3, and an inner cavity 203 is arranged inside the rear shell 201. A protective pillow 202 is arranged inside the inner cavity 203 of the rear shell 201 through an energy absorption and protection component 4. The protective pillow 202 is arranged on the front side of the inner cavity 203 of the rear shell 201.

[0027] The energy absorption and protection component 4 realizes the telescopic movement of the protective pillow 202, so that at the moment when the automobile is rear-ended, the protective pillow 202 is pushed forward to fit with the driver's head, greatly reducing the impact force of the head tilting backward, reducing the impact force of inertia, reducing the injury of personnel, and improving the protection effect.

[0028] The energy-absorbing protection component 4 includes a servo motor 401, a pinion gear 402, a support shaft 403, an eccentric wheel 404 and a large gear 405. The servo motor 401 is fixedly installed on both sides of the inner cavity 203, and a pinion gear 402 is fixedly installed at the output end of the servo motor 401. The pinion gear 402 is meshed with the large gear 405 fixedly installed above one side of the eccentric wheel 404. The inner part above one side of the eccentric wheel 404 is rotationally connected to the support shaft 403 fixedly installed in the inner cavity 203.

[0029] A stretching sliding surface 4041 and a positioning sliding surface 4042 are arranged on the outer side of the eccentric wheel 404.

[0030] The energy-absorbing protection component 4 further includes a slider 406, a support rod 407 and a first spring 408. The slider 406 is slidably arranged in the inner cavity 203 of the inner cavity 203, and the front end of the slider 406 is fixedly connected to the middle of the back surface of the protection pillow 202 through the support rod 407. A first spring 408 is arranged between the two sides of the rear end of the slider 406 and the front end of the inner cavity 203. The first spring 408 includes a spring body 4081, a first mounting ring 4082 and a second mounting ring 4083. The first mounting ring 4082 and the second mounting ring 4083 are fixedly installed at both ends of the spring body 4081.

[0031] The inside of the second mounting ring 4083 is rotationally connected to the sliding column 8 fixedly installed on both sides of the rear end of the slider 406. The side wall of the sliding column 8 is slidably connected to the stretching sliding surface 4041 and the positioning sliding surface 4042. The inside of the first mounting ring 4082 is rotationally connected to the fixed column 9. The fixed column 9 is fixedly installed on both sides of the front end of the inner cavity 203.

[0032] The upper and lower inner parts of the slider 406 are slidably connected to the bottom end of the T-shaped slide rail 7. The top end of the T-shaped slide rail 7 is fixedly installed in the inner cavity 203 through the fixing plate 6. By arranging the fixing plate 6 and the T-shaped slide rail 7, the left-right limit horizontal movement of the slider 406 is realized, and the stability of the slider 406 during the movement is ensured.

[0033] In this embodiment, by arranging the energy-absorbing protection component 4 inside the rear shell 201, the function of the telescopic movement of the protection pillow 202 on the front side of the rear shell 201 is realized by using the energy-absorbing protection component 4. When it is detected by the detection device that the vehicle is rear-ended, the protection pillow 202 is pushed forward by driving the energy-absorbing protection component 4, so that the protection pillow 202 fits more closely with the head of the driver, greatly reducing the impact force of the head tilting backward, reducing the impact force of inertia, reducing the injury of personnel, and improving the protection effect.

[0034] Embodiment Two:

[0035] Based on Embodiment One, the difference from Embodiment One is:

[0036] At the four corners of the back surface of the protective pillow 202, a buffer member 5 is provided between the inner cavity 203. The buffer member 5 includes a support cylinder 501, a sliding rod 502, and a second spring 503. The support cylinder 501 is fixedly installed at the four corners of the inner cavity 203, and the inside of the support cylinder 501 is slidably connected to the sliding rod 502 fixedly installed at the four corners of the back surface of the protective pillow 202. A second spring 503 is provided between the end of the sliding rod 502 and the inside of the support cylinder 501.

[0037] In this embodiment, by providing a buffer member 5 between the four corners of the back surface of the protective pillow 202 and the inner cavity 203 of the rear shell 201, the stability of the protective pillow 202 is ensured, and the energy absorption and protection effect of the protective pillow 202 is enhanced.

[0038] Working principle: First, since the stretching sliding surface 4041 of the eccentric wheel 404 abuts against the sliding columns 8 on both sides of the rear end of the slider 406, the spring body 4081 is stretched during the abutting process. During the stretching process of the spring body 4081, the protective pillow 202 is closely attached to the rear shell 201, ensuring the integrity of the headrest 2. When the vehicle detection device detects that the vehicle is strongly rear-ended, it will drive the servo motors 401 on both sides to be synchronously driven, and its output end drives the pinion 402 to rotate to one side. During the rotation process, the eccentric wheel 404 on the support shaft 403 is driven to rotate through the large gear 405. Since the stretching sliding surface 4041 on the eccentric wheel 404 abuts against the sliding columns 8 on both sides of the rear end of the slider 406, the sliding column 8 is moved along the stretching sliding surface 4041 to the positioning sliding surface 4042 by the rotation of the eccentric wheel 404. By using the height difference between the stretching sliding surface 4041 and the positioning sliding surface 4042, and the restoring elastic force after the spring body 4081 is stretched, the slider 406 is used to push the protective pillow 202 to pop out instantly along the T-shaped slide rail 7, so that the protective pillow 202 actively extends a certain distance to contact the driver's head, shortening the distance between the head and the headrest, greatly reducing the impact force of the head tilting backward, reducing the impact force received due to inertia. At the same time, when the driver or passenger's head tilts backward and hits the protective pillow 202, through the softness of the protective pillow 202 itself, the elastic force effect of the first spring 408, and the energy absorption and buffering function of the buffer member 5, the injury received during the backward tilt is reduced, thereby reducing the physical injury of the personnel and improving the protection effect.

[0039] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An energy-absorbing protection mechanism for an automotive seat, comprising an automotive seat (1), a headrest (2), and a pillar (3), characterized in that: The headrest (2) is fixedly installed at the center above the vehicle seat (1) through a pillar (3). The headrest (2) includes a rear shell (201), a protection pillow (202), and an inner cavity (203). The bottom end of the rear shell (201) is fixedly connected to the vehicle seat (1) through the pillar (3), and an inner cavity (203) is arranged inside the rear shell (201). The protection pillow (202) is arranged inside the inner cavity (203) through an energy-absorbing protection component (4), and the protection pillow (202) is arranged on the front side of the inner cavity (203) of the rear shell (201). The energy-absorbing protection component (4) enables the telescopic movement of the protection pillow (202), so that the protection pillow (202) is pushed forward to fit the driver's head at the moment when the vehicle is rear-ended.

2. The energy-absorbing protection mechanism for an automotive seat according to claim 1, wherein: The energy-absorbing protection component (4) includes a servo motor (401), a pinion (402), a support shaft (403), an eccentric wheel (404), and a large gear (405). The servo motor (401) is fixedly installed on both sides of the inner cavity (203), and a pinion (402) is fixedly installed at the output end of the servo motor (401). The pinion (402) is meshed with a large gear (405) fixedly installed above one side of the eccentric wheel (404). The inner part above one side of the eccentric wheel (404) is rotationally connected to a support shaft (403) fixedly installed in the inner cavity (203).

3. The energy-absorbing protection mechanism for an automotive seat according to claim 2, wherein: A stretching sliding surface (4041) and a positioning sliding surface (4042) are arranged on the outer side of the eccentric wheel (404).

4. The energy-absorbing protection mechanism for an automotive seat according to claim 2, wherein: The energy-absorbing protection component (4) further includes a slider (406), a support rod (407), and a first spring (408). The slider (406) is slidably arranged in the inner cavity (203) of the inner cavity (203), and the front end of the slider (406) is fixedly connected to the center of the back surface of the protection pillow (202) through the support rod (407). First springs (408) are arranged between the two sides of the rear end of the slider (406) and the front end of the inner cavity (203). The first spring (408) includes a spring body (4081), a first mounting ring (4082), and a second mounting ring (4083). The first mounting ring (4082) and the second mounting ring (4083) are fixedly installed at both ends of the spring body (4081).

5. The energy-absorbing protection mechanism for an automotive seat according to claim 4, characterized in that: The inner part of the second mounting ring (4083) is rotationally connected to sliding columns (8) fixedly installed on both sides of the rear end of the slider (406). The side walls of the sliding columns (8) are slidably connected to the stretching sliding surface (4041) and the positioning sliding surface (4042). The inner part of the first mounting ring (4082) is rotationally connected to a fixed column (9). The fixed column (9) is fixedly installed on both sides of the front end of the inner cavity (203).

6. The energy-absorbing protection mechanism for an automotive seat according to claim 4, wherein: The upper and lower inner parts of the slider (406) are slidably connected to the bottom end of a T-shaped slide rail (7). The top end of the T-shaped slide rail (7) is fixedly installed in the inner cavity (203) through a fixing plate (6).

7. The energy-absorbing protection mechanism for an automotive seat according to claim 1, wherein: Buffer members (5) are provided between the four corners of the back surface of the protective pillow (202) and the inner cavity (203). The buffer members (5) include support cylinders (501), sliding rods (502), and second springs (503). The support cylinders (501) are fixedly installed at the four corners of the inner cavity (203), and the inside of the support cylinders (501) is slidably connected to the sliding rods (502) fixedly installed at the four corners of the back surface of the protective pillow (202). A second spring (503) is provided between the end of the sliding rod (502) and the inside of the support cylinder (501).

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