CN212243058U - Double-layer automobile seat slide rail mechanism designed for collision safety - Google Patents

Abstract

The utility model provides a double-deck car seat slide rail mechanism for collision safety design, this mechanism assembly includes: the bottom layer slide rail mechanism comprises a lower slide rail horizontally fixed on the bottom plate and a slidable upper slide rail horizontally matched with the lower slide rail; the upper sliding rail mechanism comprises a lower sliding rail integrated with the right-angle tripod and a slidable upper sliding rail arranged in a matched manner, and the upper end of the upper sliding rail is fixedly connected with the seat; the safety belt bottom fixed end changes the traditional automobile safety belt bottom fixed end (taking a main car and a secondary car as examples) from being fixedly arranged on a bottom plate at the bottom of an automobile B column into being fixedly arranged on the corresponding side edge of a seat; when the electric control locking mechanism obtains a collision signal from the ECU, the electric control locking mechanism is immediately unlocked, the pre-compressed spring releases elastic potential energy, the seat and the passenger on the inclined slide rail release gravitational potential energy, the seat and the passenger have backward acceleration to offset the forward partial acceleration during collision, the survival space of the cabin is increased, and secondary collision injury is reduced.

Description

Double-layer automobile seat slide rail mechanism designed for collision safety

Technical Field

The utility model relates to a car collision safety field provides a double-deck car seat slide rail mechanism for collision safety design, when the car bumps, and the huge preceding acceleration that increases of decay increases passenger cabin living space, reduces the secondary collision injury to the front of endeavoring.

Background

In recent years, automobiles have become popular vehicles, and safety problems with automobiles, particularly safety problems caused by vehicle collisions, have come along. Once the automobile collides with a front obstacle, especially a front passenger at a middle-high speed, the living space of the automobile is extremely small, and the danger of secondary collision is extremely large. Safety belts and airbags are well known devices for protecting an occupant during a collision.

Further analysis: from the perspective of the acceleration borne by the body of the passenger, the collision process is expected that the instantaneous acceleration borne by the passenger in the collision cannot be too large to exceed the physiological bearing limit of the human body; from the perspective of collision energy absorption, it is desirable that more objects except human bodies absorb the energy of the automobile during collision, because the automobile with certain speed has certain kinetic energy, and the automobile is stopped to show that all the kinetic energy is absorbed by passengers, the automobile and the impact objects, so the more energy absorbed by the objects except human bodies, the safer the passengers are.

Chinese application patent publication No. CN109318767A discloses an automobile safety seat, which mainly unlocks an emergency adjustment unit of a seat back during a collision to control the seat back to turn backwards instantly, and uses the sitting posture inertia of a passenger to achieve the effects of increasing the living space in front of the passenger and attenuating the forward acceleration.

Chinese patent publication No. CN204674401U discloses a seat track mechanism and an automobile, wherein springs are mounted at two ends of a track, and the track unlocks a sliding collision spring during collision, so that the spring is used to absorb collision energy.

SUMMERY OF THE UTILITY MODEL

The utility model provides a double-deck car seat slide rail mechanism for collision safety design, its purpose is in order to solve current car seat slide rail structure to the not enough problem of passenger's protection when the car bumps, through the acceleration that the initiative confrontation collision produced in the twinkling of an eye, increase the seat energy-absorbing and increase passenger cabin living space, reduce the secondary collision injury.

The technical scheme of the utility model as follows:

the utility model provides a double-deck car seat slide rail mechanism for collision safety design which characterized in that: the safety belt fixing device comprises a bottom layer sliding rail mechanism, an upper layer sliding rail mechanism, a safety belt bottom fixing end capable of changing the installation position, an electric control locking mechanism and a pre-compression spring.

The bottom layer slide rail mechanism comprises a lower slide rail (4) horizontally fixed on a vehicle body bottom plate and a slidable upper slide block (9) horizontally matched with the lower slide rail, wherein the upper slide block (9) can slide on the lower slide rail (4) in a matched manner.

The upper sliding rail mechanism comprises an inclined lower sliding rail (7) which is integrated with a right-angle tripod (3), (7) and (8) and a slidable inclined upper sliding block (6) which is installed in a matched mode, wherein the inclined upper sliding block (6) can slide on the inclined lower sliding rail (7) in a matched mode, the hypotenuse (7) of the tripod is the inclined lower sliding rail, and the upper end of the inclined upper sliding block (6) is fixedly connected with the seat (1).

Furthermore, the tripod (3), (7) and (8) are installed in a mode that the front part is high and the rear part is low, the vertical right-angle side (3) is installed in the front, and the inclined side (7) and the right-angle side (8) form a 30-degree left-right included angle.

Furthermore, the upper slide rail (4), (9), (6) and (7) of the bottom slide rail mechanism and the upper slide rail mechanism are respectively provided with two upper slide rails and two lower slide rails which are respectively positioned on two sides of the seat in parallel to play a role together.

The fixed end (13) of the bottom of the safety belt changes the traditional installation position from the traditional vehicle body bottom plate (15) to the corresponding side surface (16) of the seat.

Furthermore, the safety belt buckle end (12) and the safety belt bottom fixing end (13) changing the traditional installation position are respectively fixed on the two sides of the seat, and the safety belt transverse belt (14) between the safety belt buckle end and the safety belt bottom fixing end can restrain the member on the seat more effectively.

And the electric control locking mechanism (5) is arranged at the upper bottom of an inclined lower sliding rail (7) of the upper sliding rail mechanism, is in a locking state in a normal state and is used for locking an inclined upper sliding block (6) of the upper sliding rail mechanism.

Further, the electric control locking mechanism (5) is in real-time communication with the ECU on the vehicle, and can be immediately unlocked when a collision signal is received without preventing the inclined upper sliding block (6) from sliding downwards, wherein the electric control locking mechanism and the communication between the electric control locking mechanism and the ECU on the vehicle are mature application technologies and do not belong to the innovation content of the patent, so that the details are not repeated.

One end of the precompression spring (2) is fixed at the upper part of the vertical right-angle side (3) of the tripod, and the other end of the precompression spring is in direct contact with the end surface of the sliding inclined upper sliding block (6).

Furthermore, the precompression spring (2) stores enough elastic potential energy according to the seat conditions of different vehicles, and the movable end surface of the precompression spring is in parallel opposite contact with the upper end surface of the inclined upper sliding block (6).

The technical effects of the utility model:

in the moment of collision, the electric control locking mechanism immediately executes unlocking, and the fixed end at the bottom of the safety belt is also fixed on the side edge of the seat, so that the transverse belt of the safety belt can restrain a passenger on the seat more effectively. The upper sliding block of the upper sliding rail mechanism is fixedly connected with the backward elastic force released by the pre-compression spring, and the seat can drive the passenger to have larger backward movement acceleration to attenuate the forward angular velocity generated by collision under the combined action of spring elastic potential energy, seat and passenger gravitational potential energy because the sliding rail has a certain inclination angle, and the front living space of the passenger is effectively increased to reduce secondary collision injury.

Drawings

FIG. 1 is a schematic view of a dual-layered seat track assembly according to an embodiment of the present invention;

FIG. 2 is a schematic view of the effect of the belt bottom anchor being mounted on the corresponding side of the seat;

fig. 3 is a schematic view showing the effect of the conventional seatbelt bottom fixing end being mounted on the vehicle body floor.

Description of reference numerals:

1. a seat; 2. pre-compressing the spring; 3. the vertical right-angle side of the upper sliding rail mechanism tripod; 4. a bottom layer slide rail mechanism lower slide rail; 5. an electric control locking structure; 6. the upper sliding rail mechanism is inclined to the upper sliding block; 7. the upper sliding rail mechanism inclines the lower sliding rail; 8. the bottom edge of a tripod of the upper sliding rail mechanism; 9. an upper sliding block of the bottom layer sliding rail mechanism; 10. sliding rail connecting rods are arranged on two sides of the bottom layer; 11. the bottom layer slide rail adjusts the tie rod; 12. a safety belt buckle end; 13. the fixed end at the bottom of the safety belt at the traditional installation position is changed; 14. a safety belt cross-belt; 15. a vehicle body floor; 16. the seat corresponds to the side.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings:

referring to the drawings, an embodiment of the present invention provides a double-deck automobile seat slide mechanism designed for crash safety, including: the bottom sliding rail mechanism, the upper sliding rail mechanism, the electric control locking mechanism, the pre-compression spring, the connecting rods of the sliding rail mechanisms on the two sides of the bottom layer and the adjusting tie rods of the sliding rails on the bottom layer.

The bottom layer slide rail mechanism comprises a lower slide rail 4 horizontally fixed on a vehicle body bottom plate and a slidable upper slide block 9 horizontally matched and installed with the lower slide rail 4, and the upper slide block 9 can slide on the lower slide rail 4 in a matched mode.

Further, the two sides of the slide rail mechanisms are symmetrically arranged, and the slide rail connecting rods 10 on the two sides of the bottom layer are connected with the upper slide blocks of the slide rail mechanisms on the two sides of the bottom layer through bolts, so that the slide rails on the two sides slide synchronously. The bottom layer slide rail adjusting tie rod 11 is connected with the upper slide blocks of the bottom layer slide rail mechanisms on the two sides through bolts and is used for daily seat position adjustment of passengers.

The upper sliding rail mechanism comprises an inclined lower sliding rail 7 and an inclined upper sliding block 6, wherein the inclined lower sliding rail 7 is integrated with a right-angle tripod 3, 7 and 8, the inclined upper sliding block 6 can be matched and arranged with the inclined lower sliding rail 7 to slide, the inclined edge 7 of the tripod is the inclined lower sliding rail, and the upper end of the inclined upper sliding block 6 is fixedly connected with the seat 1.

Further, the tripod 3, 7, 8 mounting means are high back low before, and vertical square 3 is installed in the front, and hypotenuse 7 has about 30 degrees contained angles with square 8.

Furthermore, the slide rails 4 and 7 and the slide blocks 6 and 9 of the bottom layer slide rail mechanism and the upper layer slide rail mechanism are respectively provided with two slide rails which are respectively positioned on two sides of the seat in parallel to play a role together.

One end of the precompression spring 2 is fixed at the upper part of the vertical square edge 3 of the tripod, and the other end is in direct contact with the end surface of the slidable inclined upper slide block 6.

Further, the pre-compressed spring 2 stores enough elastic potential energy for different vehicle seat conditions, and the movable end surface of the pre-compressed spring is in parallel opposite contact with the upper end surface of the inclined upper slide block 6.

And the electric control locking mechanism 5 is arranged at the upper bottom of an inclined lower slide rail 7 of the upper-layer slide rail mechanism, is in a locking state in a normal state and is used for locking an inclined upper slide block 6 of the upper-layer slide rail mechanism.

The conventional installation position of the belt bottom fixing end 13 is changed from the conventional installation position on the vehicle body bottom plate 15 to the installation position on the corresponding side surface 16 of the seat.

Further, the electronic control locking mechanism 5 is in real-time communication with the ECU on the vehicle, and when a collision signal is received, the electronic control locking mechanism is unlocked immediately without preventing the slide of the inclined upper slide block 6. Thanks to the safety belt bottom fixed end 13 is also fixed on the side of the seat, the safety belt transverse belt 14 can restrain the passenger on the seat more effectively, the upper sliding block of the upper sliding rail mechanism is fixedly connected with the seat and directly bears the backward elasticity released by the pre-compressed spring, and because the sliding rail has a certain inclination angle, under the combined action of the elastic potential energy of the spring, the seat and the gravitational potential energy of the seat and the passenger, the seat can drive the passenger to have larger backward movement acceleration to attenuate the forward angular velocity generated by collision, the front living space of the passenger is effectively increased, and the secondary collision injury is reduced.

The foregoing is a preferred embodiment of the present invention, and it should be noted that some modifications may be made without departing from the principles of the invention, and such modifications should be considered as within the scope of the invention.

Claims (3)

1. The utility model provides a double-deck car seat slide rail mechanism for collision safety design, is applied to the car, its characterized in that:

the bottom layer slide rail mechanism comprises a bottom layer slide rail mechanism lower slide rail (4) horizontally fixed on a vehicle body bottom plate and a bottom layer slide rail mechanism upper slide block (9) horizontally matched with the bottom layer slide rail mechanism lower slide rail, and the bottom layer slide rail mechanism upper slide block (9) can slide on the bottom layer slide rail mechanism lower slide rail (4) in a matched manner;

the upper-layer slide rail mechanism comprises an upper-layer slide rail mechanism tripod vertical right-angle side (3), an upper-layer slide rail mechanism inclined lower slide rail (7), an upper-layer slide rail mechanism tripod bottom side (8) and an upper-layer slide rail mechanism inclined upper slide block (6) which are designed into a three-tripod type whole, wherein the upper-layer slide rail mechanism inclined upper slide block (6) can slide on the upper-layer slide rail mechanism inclined lower slide rail (7) in a matched manner, the inclined side of the tripod is the upper-layer slide rail mechanism inclined lower slide rail (7), and the upper end of the upper-layer slide rail mechanism inclined upper slide block (6) is fixedly connected with the seat (1);

one end of the precompression spring (2) is fixed at the upper part of the vertical right-angle side (3) of the tripod, and the other end of the precompression spring is in direct contact with the end surface of the inclined upper sliding block (6) of the upper sliding rail mechanism.

2. The double-deck automobile seat slide rail mechanism designed for crash safety according to claim 1, wherein the bottom slide rail mechanism upper slide block (9), the bottom slide rail mechanism lower slide rail (4) of the bottom slide rail mechanism and the upper slide rail mechanism inclined upper slide block (6) and the upper slide rail mechanism inclined lower slide rail (7) of the upper slide rail mechanism are provided with two, and are respectively positioned on two sides of the seat in parallel to play a role together.

3. The double-deck automobile seat slide mechanism designed for crash safety as claimed in claim 1, wherein said upper deck slide mechanism tripod vertical leg (3) is mounted in front, and the upper deck slide mechanism inclined lower slide (7) and the upper deck slide mechanism tripod bottom leg (8) are held at an angle of about 30 degrees.

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