CN202923434U - Collision safety seat for motor vehicle - Google Patents

Abstract

The utility model belongs to a motor vehicle safety device and relates to a motor vehicle collision safety seat. The safety seat includes a seat headrest, a seat back, and an inverted U-shaped guide rod, and the inverted U-shaped guide rod includes vertical rods at two ends and a horizontal rod in the middle; The end vertical rod is inserted into the backrest; the headrest is connected to the horizontal rod of the inverted U-shaped guide rod through the left and right longitudinal plates in the headrest frame; there is a rotating spring between the left and right longitudinal plates, and the rotating spring set is fixed on the inverted On the horizontal rod of the U-shaped guide rod, the two ends of the torsion spring are respectively fixed on the left and right vertical plates. In the frontal collision of a motor vehicle, it can buffer the collision between the heads of the rear passengers and the headrests of the front seats, effectively reducing the head injuries of the rear passengers.

Description

Motor Vehicle Collision Safety Seat

technical field

The utility model belongs to a motor vehicle safety device, which is used for protecting the safety of passengers, in particular to a motor vehicle collision safety seat for protecting the head safety of rear passengers.

Background technique

Motor vehicle seats are an important part of occupant protection. In a frontal collision of a motor vehicle, passengers restrained by seat belts will rush forward under the action of inertial force, and the heads of the rear passengers will hit the headrests of the front seats. Usually, the headrests of ordinary seats are fixedly connected to the upper part of the seat, and cannot be displaced forward under the impact force. Therefore, the front row of headrests will cause damage to the heads of the rear passengers.

Utility model content

The purpose of the utility model is to overcome the defects of the existing motor vehicle seats and provide a motor vehicle collision safety seat, which can protect the heads of rear passengers when the motor vehicle collides head-on.

The technical solution adopted by the utility model is: a motor vehicle collision safety seat, including a seat headrest, a seat back, and an inverted U-shaped guide rod, and the inverted U-shaped guide rod includes vertical rods at both ends and the horizontal rod in the middle; the vertical rods at both ends of the inverted U-shaped guide rod are inserted into the backrest; the headrest is connected to the horizontal rod of the inverted U-shaped guide rod through the left and right longitudinal plates in the headrest frame; There is a rotary spring between the plates, and the rotary spring suit is fixed on the horizontal bar of the inverted U-shaped guide rod, and the two ends of the rotary spring are respectively fixed on the left and right vertical plates.

The two longitudinal plates protrude from the lower part of the headrest, and are gap-connected with the horizontal bar of the inverted U-shaped guide bar. Each of the two longitudinal plates is provided with a small hole for fixing the rotary spring.

The beneficial effect of the utility model is that: in the frontal collision of the motor vehicle, when the head of the rear passenger collides with the headrest of the front seat, and the collision intensity is relatively large, causing the head injury value (HIC) of the rear passenger to exceed 1000 , It can buffer the collision between the heads of the rear passengers and the headrests of the front seats, effectively reducing the head injuries of the rear passengers.

Description of drawings

The utility model will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

Fig. 1 is a schematic diagram of the overall structure of the utility model;

Fig. 2 is a schematic diagram of the assembly of the headrest frame, the rotating spring and the inverted U-shaped guide rod in the utility model;

Fig. 3 is the front view of Fig. 2;

Fig. 4 is a schematic diagram of the skeleton structure of the headrest in the utility model;

In the figure: 1. Headrest; 2. Headrest frame; 3. Left and right vertical plates; 4. Round hole; 5. Small hole; 6. Inverted U-shaped guide rod; 7. Rotary spring; 8. Backrest.

Detailed ways

As shown in Figures 1 to 4, the uppermost end of the utility model is a headrest 1, and the lower part of the headrest 1 is an inverted U-shaped guide rod 6. The inverted U-shaped guide rod 6 is connected. The bottom of the inverted U-shaped guide rod 6 is a backrest 8, and two vertical bars of the inverted U-shaped guide rod 6 are inserted into the backrest 8. The left and right vertical plates 3 protrude from the lower end of the headrest 1 . One of the horizontal rods in the inverted U-shaped guide rod 6 passes through the circular holes 4 in the left and right longitudinal plates 3, so that the horizontal rod and the two longitudinal plates 3 form a rotating hinge, and the two longitudinal plates 3 can go around the inverted U-shaped guide rod The horizontal bar in 6 rotates. There is a rotary spring 7 between the left and right vertical plates 3 . Revolving spring 7 suits are fixed on the horizontal bar of inverted U-shaped guide bar 6. The two ends of the rotary spring 7 are respectively stuck in the small holes 5 of the left and right vertical plates 3 .

In a frontal collision of a motor vehicle, passengers restrained by seat belts in the vehicle move forward under the action of inertial force. When the passenger's head injury value (HIC) exceeds 1000, the two ends of the torsion spring 7 undergo torsional elastic deformation under the pressure of the left and right vertical plates 3, so that the left and right vertical plates 3 wind around the U-shaped guide rod The horizontal bar in 6 rotates forward at a certain angle, and at the same time, the front seat headrest 1 rotates forward at a certain angle to buffer the collision between the head of the rear passenger and the front seat headrest 1, effectively reducing the impact on the head of the rear passenger. s damage. After the collision is over, the passengers in the car are displaced backward under the restraint of the safety belt, and the left and right vertical plates 3 lose the impact force of the rear passengers, and no longer apply pressure to the rotary spring 7. At this time, the original shape of the two ends of the rotating spring 7 is restored, and it reacts on the two vertical plates 3 to make it wrap around the horizontal bar in the U-shaped guide bar 6 to restore the vertical state. Protects the neck of the rearwardly displaced front passenger.

Claims (3)

1. an anti-collision safety chair for automobile, comprise chair headrest, back of seat, it is characterized in that, also comprises an inverted U-shaped guide rod, and described inverted U-shaped guide rod comprises vertical bar and the middle horizon bar at two ends; The vertical bar in inverted U-shaped guide rod two ends inserts in backrest; Headrest is connected on inverted U-shaped guide rod horizon bar by left and right two stringer boards in head pillow frame; Have one to turn spring between left and right two stringer boards, turn spring suit and be fixed on the horizon bar of inverted U-shaped guide rod, turn spring two ends and be individually fixed on left and right two stringer boards.

2. anti-collision safety chair for automobile according to claim 1 is characterized in that described two stringer boards protrude from the headrest bottom, and is connected with the horizon bar gap of inverted U-shaped guide rod.

3. anti-collision safety chair for automobile according to claim 1, is characterized in that respectively being provided with on described two stringer boards aperture and be used for fixedly turning spring.

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