Automobile seat suspension system

Abstract

The present invention relates to the technical field of automobile seats, and discloses an automobile seat suspension system, comprising a base, a backrest, a seat cushion, and a safety belt, wherein the bottom of the backrest is fixedly connected to the top of the base, the safety belt is arranged on the left side of the backrest, the top of the base is provided with an arc-shaped groove, and the bottom wall of the arc-shaped groove is fixedly connected to a guide rail tube. The automobile seat suspension system achieves the effect of changing the motion form of an object, prolonging the energy release process, reducing the energy peak, and preventing passengers from being injured by the huge inertia caused by the instantaneous stop of the car through the mutual cooperation between the base, the backrest, the seat cushion, the arc-shaped groove, the guide rail tube, the first movable sealing plug, the second movable sealing plug, the bottom plate, the buffer pad, the pressure valve, the sealing clamp, the sealing cover, the safety belt, and the support rod. This solves the problem that when a vehicle stops after a collision, the passengers will bear excessive load due to inertia, thereby causing passenger injuries.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile seats, in particular to an automobile seat suspension system. Background Art

[0002] According to data obtained from BYD's high-speed collision test, during the collision, the front passengers and driver suffered less injuries than the rear passengers because they were protected by airbags. This was due to fewer protection measures for the rear passengers. However, why did the rear passengers suffer greater injuries while being in a relatively safe position? This is because the vehicle generates a huge inertial force when it stops from high speed. Although the rear passengers are restrained by seat belts, the huge kinetic energy generated instantly will exceed the human body's tolerance limit. Therefore, if you want to protect the lives of the rear passengers in an accident, you must solve the huge kinetic energy generated when the car stops.

[0003] If the inertial force generated when the car stops can be released evenly and continuously, and the energy release process can be prolonged as much as possible to reduce the peak energy, then the problem of excessive instantaneous impact force can be solved. However, this force unloading method can generally be achieved through two methods. One is to improve the huge impact force generated at the moment of stopping by deforming the object, but the actual situation is that the interior space of the vehicle is insufficient and existing vehicles are difficult to use. The other is to change the movement form of the object, just like when a vehicle collides, the passenger's linear motion is changed to another movement form, so that the kinetic energy of the passenger at the moment of impact is slowly and continuously released in another movement form, thereby reducing the damage to the rear passengers due to their own inertia during a collision. Summary of the Invention

[0004] (1) Technical problems solved

[0005] In response to the shortcomings of the existing technology, the present invention provides a car seat suspension system, which has the advantages of changing the movement form of objects, prolonging the energy release process, reducing the energy peak, and preventing passengers from being injured due to the huge inertia caused by the instantaneous stop of the car. It solves the problem that when a vehicle stops after a collision, the passengers will bear excessive load due to inertia, thereby causing passenger injuries.

[0006] (2) Technical solution

[0007] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a car seat suspension system, comprising a base, a backrest, a seat cushion and a safety belt, the bottom of the backrest being fixedly connected to the top of the base, the safety belt being arranged on the left side of the backrest, an arc-shaped groove being provided on the top of the base, a guide rail tube being fixedly connected to the bottom wall of the arc-shaped groove, a first movable sealing plug and a second movable sealing plug being provided inside the guide rail tube, the first movable sealing plug being connected to the base plate through a support rod, the bottom of the seat cushion being fixedly connected to the top of the base plate, a buffer pad being fixedly sleeved on the side surface of the support rod, a pressure valve being provided on the top of the guide rail tube, a fixed sealing clamp being fixedly connected to the left end of the guide rail tube, a groove being provided on the left side of the fixed sealing clamp, and a sealing cover being provided inside the groove.

[0008] Preferably, the side surfaces of the first movable sealing plug and the side surfaces of the second movable sealing plug are both provided with an annular groove, and an O-ring is provided inside the annular groove. The O-ring can seal the gap between the movable sealing plug and the guide rail tube to avoid air leakage between the first movable sealing plug and the second movable sealing plug.

[0009] Preferably, the bottom plate is an arc-shaped plate, and the center of the arc-shaped plate coincides with the center of the arc-shaped groove. When the centers of the arc-shaped plate and the arc-shaped groove coincide, the arc-shaped plate can slide more smoothly in the arc-shaped groove.

[0010] Preferably, the right end of the guide rail tube is fixedly connected with a retaining ring, and the retaining ring and the right end of the guide rail tube are integrated. The inner diameter of the retaining ring is smaller than the diameter of the first movable sealing plug. When the first movable sealing plug moves to the rightmost end, the right side of the first movable sealing plug will abut against the left side of the retaining ring, thereby preventing the first movable sealing plug from separating from the guide rail tube.

[0011] Preferably, the support rod is a variable diameter rod, the left end of the support rod is fixedly connected to the right side of the first movable sealing plug, and the right end of the support rod is fixedly connected to the bottom of the base plate. When the car collides and stops instantly, the passenger will transfer the inertia force of the seat cushion and the base plate to the support rod, causing the support rod to push the first movable sealing plug to move to the left in the guide rail tube.

[0012] Preferably, a pulley is provided at the bottom of the support rod, and a sliding groove is provided on the inner bottom wall of the arc-shaped groove. The side surface of the pulley is movably connected to the inner wall of the sliding groove. The pulley provides a supporting force pointing to the center of the circle for the support rod, thereby preventing the pressure generated by the passenger when riding from causing the support rod to move downward or causing the support rod to deform.

[0013] Preferably, the top of the guide rail tube is connected to a support wheel through a support, and the side surface of the support wheel is movably connected to the bottom of the base plate. The support wheel provides a supporting force to the base plate pointing to the center of the circle to prevent the base plate from being deformed due to passengers riding, thereby affecting the movement of the support rod.

[0014] Preferably, a groove is provided on the right side of the seat cushion. When a passenger sits on the seat cushion, his legs will be located in the groove. At this time, his feet can be squeezed into the seat cushion by squeezing the mesh cotton of the seat cushion, thereby playing a certain protective role.

[0015] Compared with the prior art, the present invention provides a car seat suspension system with the following beneficial effects:

[0016] 1. The car seat suspension system, through the mutual cooperation among the base, seat back, seat cushion, arc groove, guide rail tube, first movable sealing plug, second movable sealing plug, bottom plate, buffer pad, pressure valve, sealing clamp, sealing cover, seat belt and support rod, achieves the effect of changing the movement form of the object, prolonging the energy release process, reducing the energy peak, and preventing passengers from being injured by the huge inertia caused by the instantaneous stop of the car. It solves the problem that when the vehicle stops after a collision, the passengers will bear excessive load due to inertia, which may cause passenger injuries.

[0017] 2. The car seat suspension system can reduce the friction between the support rod and the guide rail tube and between the bottom plate and the guide rail tube when the seat cushion makes a circular motion through the mutual cooperation between the base, seat back, seat cushion, arc groove, guide rail tube, bottom plate, pulley, slide groove, support and support wheel. The pulley and support wheel also provide support force pointing to the center of the circle for the support rod and bottom plate respectively, avoiding deformation of the support rod or bottom plate when a passenger sits on it, achieving the effect of reducing the friction between the support rod, guide rail tube and bottom plate and providing support force pointing to the center of the circle for the support rod and bottom plate, and solving the problems that when the friction force is large, it is difficult for the bottom plate to drive the support rod to slide smoothly and when the support rod or bottom plate is deformed, it is difficult for the support rod to continue to move along the guide rail tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a side sectional view of the present invention;

[0019] Figure 2 For the present invention Figure 1 Enlarged view of point A in the middle;

[0020] Figure 3 For the present invention Figure 1 Enlarged view of point B in the middle;

[0021] Figure 4 It is a front view of the present invention.

[0022] Among them: 1. Base; 2. Backrest; 3. Seat cushion; 4. Arc groove; 5. Guide rail tube; 6. First movable sealing plug; 7. Second movable sealing plug; 8. O-ring; 9. Retaining ring; 10. Bottom plate; 11. Buffer pad; 12. Pulley; 13. Slide groove; 14. Support; 15. Support wheel; 16. Pressure valve; 17. Fixed sealing clamp; 18. Sealing cover; 19. Groove; 20. Safety belt; 21. Support rod. DETAILED DESCRIPTION

[0023] 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.

[0024] See also Figure 1-4A car seat suspension system includes a base 1, a seat back 2, a seat cushion 3 and a safety belt 20. The base 1 is arranged inside the car and connected to the car body frame. The seat cushion 3 is made of mesh cotton. The bottom of the seat back 2 is fixedly connected to the top of the base 1. The seat back 2 and the base 1 are integrated. The safety belt 20 is arranged on the left side of the seat back. An arc-shaped groove 4 is opened on the top of the base 1. The inner bottom wall of the arc-shaped groove 4 is fixedly connected to a guide rail tube 5. There are three guide rail tubes 5, which are evenly laid on the inner bottom wall of the arc-shaped groove 4, with the same interval between each two. A first movable sealing plug 6 and a second movable sealing plug 7 are arranged inside the guide rail tube 5. The first movable sealing plug 6 and the second movable sealing plug 7 are of the same size. The second movable sealing plug 7 is located at the first movable sealing plug 6. On the left side, an annular groove is provided on the side surface of the first movable sealing plug 6 and the side surface of the second movable sealing plug 7, and an O-ring 8 is provided inside the annular groove. The first movable sealing plug 6 is connected to the base plate 10 through a support rod 21. There are three support rods 21, and each support rod 21 matches a guide rail tube 5. The base plate 10 is an arc-shaped plate, and the center of the arc-shaped plate coincides with the center of the arc groove 4. The right end of the guide rail tube 5 is fixedly connected with a retaining ring 9, and the retaining ring 9 and the right end of the guide rail tube 5 are integrated. The center of the retaining ring 9 coincides with the center of the corresponding cross-section of the guide rail tube 5. The inner diameter of the retaining ring 9 is smaller than the diameter of the first movable sealing plug 6. The support rod 21 is a reducing rod. The diameter of the support rod 21 is thinner on the left and thicker on the right. The left end of the support rod 21 is connected to the first movable sealing plug 6 is fixedly connected on the right side, the right end of the support rod 21 is fixedly connected to the bottom of the base plate 10, the bottom of the cushion 3 is fixedly connected to the top of the base plate 10, and a groove 19 is provided on the right side of the cushion 3. There are four grooves 19, two in each group, and each group is symmetrically distributed with the center line of the base 1 as the axis of symmetry. The side surface of the support rod 21 is fixedly sleeved with a buffer pad 11, which is also called a terminal buffer pad. It can absorb impact force by compressing itself. The terminal buffer pad is close to the right end of the support rod 21. A pulley 12 is provided at the bottom of the support rod 21. Each support rod 21 is equipped with a pulley 12. A slide groove 13 is provided on the inner bottom wall of the arc groove 4. Each pulley 12 matches a slide groove 13. The side surface of the pulley 12 is connected to the slide groove The inner wall of 13 is movably connected, the top of the guide rail tube 5 is connected to a support wheel 15 through a support 14, and the side surface of the support wheel 15 is movably connected to the bottom of the base plate 10. A pressure valve 16 is provided on the top of the guide rail tube 5. The pressure valve 16 is called a pressure regulating valve, also known as a self-balancing valve. It is an intuitive and simple pressure regulating control device. When the pressure in the pipeline is too high, the gas in the pipeline can be discharged to reduce the gas pressure in the pipeline until the air pressure in the pipeline returns to normal. At this time, the pressure valve 16 is closed again. The pressure valve 16 is normally located between the sealing cover 18 and the second movable sealing plug 7. The left end of the guide rail tube 5 is fixedly connected with a fixed sealing clamp 17. The fixed sealing clamp 17 can prevent the second movable sealing plug 7 from detaching from the left end of the guide rail tube 5.A groove is provided on the left side of the fixed sealing snap ring 17, and a sealing cover 18 is provided inside the groove. The sealing cover 18 is located inside the groove under normal conditions, and the sealing cover 18 and the fixed sealing snap ring 17 can be fixed as a whole through a safety lock, thereby sealing the left end of the guide rail tube 5. When an accident occurs, the safety lock is opened through the same safety mechanism as the airbag. At this time, the seat cushion 3 and the bottom plate 10 make a circular motion under the joint action of the guide rail tube 5 and the support rod 21. After the support rod 21 penetrates into the guide rail tube 5, the first movable sealing plug 6 and the second movable sealing plug move to the left along the guide rail tube 5 under the action of air pressure. At this time, the sealing cover 1 8 will be pushed open by compressed air. Through the mutual coordination between the base 1, seat back 2, seat cushion 3, arc-shaped groove 4, guide rail tube 5, first movable sealing plug 6, second movable sealing plug 7, bottom plate 10, cushion 11, pressure valve 16, fixed sealing clamp 17, sealing cover 18, safety belt 20 and support rod 21, the effect of changing the object's motion form is achieved, prolonging the energy release process, reducing the energy peak, and preventing passengers from being injured by the huge inertia caused by the car's instantaneous stop. This solves the problem of excessive load on passengers due to inertia when the car stops after a collision, which may cause passenger injuries.

[0025] When a vehicle collides, the moment the vehicle stops, the passengers will experience a greater impact due to the huge inertia force, causing overload on the human body. Therefore, in the limited space of the vehicle, the energy release process should be prolonged as much as possible to reduce the peak value of the energy explosion, thereby reducing the load on the human body when it stops instantly. First, when the vehicle is in normal operation, the passengers move in a straight line with the vehicle. When the vehicle collides, the car slows down and stops instantly. At this time, the passengers will continue to move in the original direction under the action of inertia, but the seat belt 20 will prevent the passengers from moving. Therefore, at this time, the passengers are between the guide rail tube 5, the support rod 21, Under the joint action of the bottom plate 10 and the seat cushion 3, the linear motion is converted into circular motion, and the motion length and the direction of the force are changed. At the moment of the vehicle collision, the safety lock originally used to fix the sealing cover 18 is opened, and the impact force instantly received by the passenger is directed to the seat cushion 3 under the restraint of the safety belt 20. The downward pressure of the seat cushion 3 is transmitted to the bottom plate 10 and the support rod 21. The support rod 21 will make a circular motion along the guide rail tube 5. When the support rod 21 does not move, the section between the second movable sealing plug 7 and the sealing cover 18 in the guide rail tube 5 is a low-pressure and low-resistance section. When the support rod 21 moves, the second movable sealing plug 7 and the sealing cover 18 in the guide rail tube 5 are in a low-pressure and low-resistance section. After the movement, the support rod 21 will push the first movable sealing plug 6 to move. At this time, the gas between the first movable sealing plug 6 and the second movable sealing plug 7 is compressed. When the gas is compressed to a certain extent, the second movable sealing plug 7 will also move, compressing the gas between the sealing cover 18 and the second movable sealing plug 7 until the sealing cover 18 is pushed out of the groove 19. Then the second movable sealing plug 7 will move to the left until the left side of the second movable sealing plug 7 is in contact with the right side of the fixed sealing clamp 17. At this time, the pressure valve 16 is located between the first movable sealing plug 6 and the second movable sealing plug 7. After that, The support rod 21 continues to move and continues to compress the air between the first movable sealing plug 6 and the second movable sealing plug. When the air pressure between the two reaches a certain value, the high-pressure gas will be discharged from the pressure valve 16, and the distance between the first movable sealing plug 6 and the second movable sealing plug 7 will slowly decrease. The support rod 21 moves slowly. In the process of compression of all the above gases, a large air resistance will be generated. These air resistances will gradually offset part of the impact force on the human body until the buffer pad 11 is in contact with the right end of the guide rail tube 5. At this time, the buffer unloading process is completed.

[0026] During the above-mentioned buffering and unloading process, the passengers are performing circular motion. Since circular motion has two force directions, one is the tangential direction of the contact point between the support rod 21 and the guide rail tube 5, and the other is the direction opposite to the centripetal force and passing through the contact point between the support rod 21 and the guide rail tube 5. After the collision, the impact force received by the passengers will be converted into forces in these two directions. Afterwards, the force in the tangential direction will be offset by the air resistance. At this time, the force on the human body is greatly reduced. At the same time, the circular motion also changes the force-bearing part of the human body, increases the contact area between the human body and the seat, and thus reduces the impact on the human body.

[0027] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A car seat suspension system, comprising a base (1), a seat back (2), a seat cushion (3) and a safety belt (20), wherein the bottom of the seat back (2) is fixedly connected to the top of the base (1), and the safety belt (20) is arranged on the left side of the seat back, characterized in that: The top of the base (1) is provided with an arc-shaped groove (4), the bottom wall of the arc-shaped groove (4) is fixedly connected to a guide rail tube (5), the inside of the guide rail tube (5) is provided with a first movable sealing plug (6) and a second movable sealing plug (7), the first movable sealing plug (6) is connected to the bottom plate (10) through a support rod (21), the bottom of the seat cushion (3) is fixedly connected to the top of the bottom plate (10), the side surface of the support rod (21) is fixedly sleeved with a buffer pad (11), the top of the guide rail tube (5) is provided with a pressure valve (16), the left end of the guide rail tube (5) is fixedly connected to a fixed sealing clamp (17), the fixed A groove is provided on the left side of the fixed sealing clamp ring (17), and a sealing cover (18) is provided inside the groove. The bottom plate (10) is an arc-shaped plate, and the center of the arc-shaped plate coincides with the center of the arc-shaped groove (4). The right end of the guide rail tube (5) is fixedly connected to a retaining ring (9), and the retaining ring (9) and the right end of the guide rail tube (5) are integrated. The inner diameter of the retaining ring (9) is smaller than the diameter of the first movable sealing plug (6). The support rod (21) is a reducing rod, and the left end of the support rod (21) is fixedly connected to the right side of the first movable sealing plug (6), and the right end of the support rod (21) is fixedly connected to the bottom of the bottom plate (10).

2. The automobile seat suspension system according to claim 1, characterized in that: An annular groove is provided on the side surface of the first movable sealing plug (6) and the side surface of the second movable sealing plug (7), and an O-type sealing ring (8) is provided inside the annular groove.

3. The automobile seat suspension system according to claim 1, characterized in that: A pulley (12) is provided at the bottom of the support rod (21), a sliding groove (13) is provided on the inner bottom wall of the arc-shaped groove (4), and the side surface of the pulley (12) is movably connected to the inner wall of the sliding groove (13).

4. The automobile seat suspension system according to claim 1, characterized in that: The top of the guide rail tube (5) is connected to a support wheel (15) via a support (14), and the side surface of the support wheel (15) is movably connected to the bottom of the base plate (10).

5. The automobile seat suspension system according to claim 1, characterized in that: A groove (19) is provided on the right side of the seat cushion (3).

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