Bullet train seat backrest reinforcing mechanism

Abstract

The utility model relates to the technical field of seat backrests, and discloses a reinforcing mechanism for a seat backrest of a bullet train, which solves the problems that the side edge of the existing seat backrest is easily collided by passengers and luggage coming and going through a passageway, the backrest is easily damaged in long-time collision, and the service life of the backrest is shortened. Armrests are fixedly mounted on the two sides of the bullet train seat, a backrest body is mounted at one end of the bullet train seat, moving plates are arranged on the two sides of the interior of the backrest body, mounting strips are fixedly mounted on the sides, away from each other, of the two moving plates, and rubber pads are fixedly mounted on the sides, away from each other, of the two mounting strips; mounting grooves are formed in the middle parts of the upper and lower sides of the backrest body; sliding blocks are fixedly mounted at the upper and lower ends of the two moving plates; the reinforcing mechanism can effectively buffer when the side edge of the seat backrest is collided by passengers and luggage coming and going through an aisle, so that the backrest is prevented from being damaged, and the service life of the backrest is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of seat backs, and particularly relates to a strengthening mechanism for the seat back of a bullet train seat. Background Art

[0002] The seat back of a bullet train seat is an important part of the bullet train seat. Its design aims to provide the comfort and support required by passengers during the journey; most seat backs of bullet train seats have an adjustable function, and passengers can adjust the angle of the seat back according to their own needs and comfort; this design helps passengers maintain a comfortable sitting posture during long-distance travel and reduces fatigue; the seat back of a bullet train seat usually adopts an ergonomic design to provide sufficient support, especially for the waist and back, and this design helps to reduce the pressure on the spine of passengers in a long-term sitting position and prevent problems such as low back pain; however, the sides of the existing seat backs are easily collided by passengers and luggage passing through the aisle, and are easily damaged in long-term collisions, reducing their service life. Therefore, a seat back strengthening mechanism is urgently needed. Content of the Utility Model

[0003] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a strengthening mechanism for the seat back of a bullet train seat, which effectively solves the problem that the sides of the existing seat backs are easily collided by passengers and luggage passing through the aisle, and are easily damaged in long-term collisions, reducing their service life.

[0004] To achieve the above object, the utility model provides the following technical solution: a strengthening mechanism for the seat back of a bullet train seat, including a bullet train seat. Armrests are fixedly installed on both sides of the bullet train seat. A seat back body is installed at one end of the bullet train seat. Moving plates are arranged on both sides inside the seat back body. Installation strips are fixedly installed on the sides of the two moving plates away from each other. Rubber pads are fixedly installed on the sides of the two installation strips away from each other. Installation grooves are formed in the middle of the upper and lower sides of the seat back body. Sliders are fixedly installed at the upper and lower ends of the two moving plates. Sliding grooves are formed in the inner walls of the upper and lower sides of the seat back body. The four sliders are respectively slidably installed inside the four sliding grooves. A buffer strengthening mechanism is arranged between the two installation grooves and the inside of the seat back body.

[0005] Preferably, the buffer strengthening mechanism includes two fixing plates and two fixing disks. The two fixing plates are fixedly installed on both sides inside the seat back body. The two fixing disks are arranged in the middle of the two installation grooves. First sliding rods are fixedly installed in the middle of the two fixing disks. The two first sliding rods are respectively fixedly installed inside the two installation grooves. Second sliding rods are fixedly installed in the middle of the two fixing plates.

[0006] Preferably, two first springs are provided on the surfaces of the two first sliding rods, and first sliding sleeves are movably sleeved at both ends of the surfaces of the two first sliding rods. Both ends of the four first springs are respectively fixedly connected to the first sliding sleeves and the fixed disk. Connecting bars are fixedly installed on the surfaces of the four first sliding sleeves through connecting blocks, and one ends of the four connecting bars are respectively fixedly connected to both ends of the two connecting bars.

[0007] Preferably, two second springs are provided on the surfaces of the two second sliding rods, and second sliding sleeves are movably sleeved at both ends of the surfaces of the two second sliding rods. Both ends of the four second springs are respectively fixedly connected to the second sliding sleeves and the fixed plate. Both ends of the two second sliding rods are fixedly connected to the inside of the backrest body through positioning plates. Support rods are fixedly installed on one side of each second sliding sleeve, transmission bars are fixedly installed at one ends of the support rods, rollers are closely attached to one side surface of each transmission bar, shaft rods are fixedly installed in the middle of the four rollers, and connecting frames are rotatably installed between both ends of the four shaft rods. One ends of the four connecting frames are respectively fixedly connected to both ends of one side of the two moving plates close to each other.

[0008] Compared with the prior art, the beneficial effects of the present utility model are as follows: When in use, when the passing passengers and luggage in the aisle hit the side of the backrest body, they will push against the rubber pad. The rubber pad can effectively prevent passengers from being injured. When the rubber pad is pushed, it will push the moving plate and the connecting bar to move through the installation bar. When the connecting bar moves, it will drive the first sliding sleeve to slide along the surface of the first sliding rod through the connecting block and simultaneously compress the first spring, and buffer through the elasticity of the first spring;

[0009] When the moving plate moves, it will drive the slider to slide along the inside of the chute, increasing the stability of the moving plate when it moves. When the moving plate moves, it will drive the connecting frame to move. When the connecting frame moves, it will drive the roller to push the transmission bar through the shaft rod. When the transmission bar is pushed, it will move. When the transmission bar moves, it will drive the second sliding sleeve to slide along the surface of the second sliding rod through the support rod and simultaneously compress the second spring, and buffer through the elasticity of the second spring; Through double buffering, the impact on the backrest body can be effectively avoided, improving its service life; When the side of the seat back is hit by the passing passengers and luggage in the aisle, the strengthening mechanism can effectively buffer, thereby avoiding damage to the backrest and improving its service life. Description of the Drawings

[0010] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. They are used together with the embodiments of the present utility model to explain the present utility model, and do not constitute a limitation to the present utility model.

[0011] In the drawings:

[0012] Figure 1This is a schematic structural diagram of the strengthening mechanism of the motor vehicle seat backrest of the present utility model;

[0013] Figure 2 This is a schematic diagram of the internal structure of the backrest body of the present utility model Figure 1 ;

[0014] Figure 3 This is a schematic diagram of the structure of the backrest body of the present utility model Figure 2 ;

[0015] In the figure: 1, motor vehicle seat; 2, armrest; 3, backrest body; 4, moving plate; 5, slider; 6, chute; 7, mounting strip; 8, connecting strip; 9, rubber pad; 10, connecting block; 11, first sliding sleeve; 12, first sliding rod; 13, fixed disk; 14, first spring; 15, mounting groove; 16, fixing plate; 17, connecting frame; 18, shaft rod; 19, roller; 20, transmission strip; 21, support rod; 22, second sliding sleeve; 23, second sliding rod; 24, positioning plate; 25, second spring. Specific embodiments

[0016] 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 the embodiments; based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0017] It is provided by Figures 1 to 3 The present utility model includes a motor vehicle seat 1. Armrests 2 are fixedly installed on both sides of the motor vehicle seat 1. A backrest body 3 is installed at one end of the motor vehicle seat 1. Moving plates 4 are provided on both sides inside the backrest body 3. Mounting strips 7 are fixedly installed on the sides of the two moving plates 4 facing away from each other. Rubber pads 9 are fixedly installed on the sides of the two mounting strips 7 facing away from each other. Mounting grooves 15 are opened in the middle of the upper and lower sides of the backrest body 3. Sliders 5 are fixedly installed at the upper and lower ends of the two moving plates 4. Chutes 6 are opened on the inner walls of the upper and lower sides of the backrest body 3. The four sliders 5 are respectively slidably installed inside the four chutes 6. A buffer strengthening mechanism is provided between the two mounting grooves 15 and the inside of the backrest body 3.

[0018] During use, when the passing passengers and luggage in the aisle hit the side of the backrest body 3, they will push against the rubber pad 9. The rubber pad 9 can effectively prevent passengers from being injured. When the rubber pad 9 is pushed, it will push the moving plate 4 and the buffer strengthening mechanism through the mounting strip 7. When the moving plate 4 moves, it will drive the slider 5 to slide along the inside of the chute 6, increasing the stability of the moving plate 4 during movement. When the buffer strengthening mechanism is pushed, it will perform double elastic buffering, thus effectively preventing the backrest body 3 from being impacted and improving its service life; enabling this strengthening mechanism to effectively buffer when the side of the seat back is hit by the passing passengers and luggage in the aisle, thereby preventing damage to the backrest and improving its service life;

[0019] The buffer strengthening mechanism includes two fixing plates 16 and two fixed discs 13. The two fixing plates 16 are fixedly installed on both sides inside the backrest body 3. The two fixed discs 13 are arranged in the middle of two mounting grooves 15. A first sliding rod 12 is fixedly installed in the middle of each of the two fixed discs 13. The two first sliding rods 12 are respectively fixedly installed inside the two mounting grooves 15. A second sliding rod 23 is fixedly installed in the middle of each of the two fixing plates 16; Two first springs 14 are arranged on the surfaces of the two first sliding rods 12. The two ends of the surfaces of the two first sliding rods 12 are movably sleeved with first sliding sleeves 11. The two ends of the four first springs 14 are respectively fixedly connected to the first sliding sleeves 11 and the fixed discs 13. Connecting strips 8 are fixedly installed on the surfaces of the four first sliding sleeves 11 through connecting blocks 10. One ends of the four connecting strips 8 are respectively fixedly connected to the two ends of the two connecting strips 8; Two second springs 25 are arranged on the surfaces of the two second sliding rods 23. The two ends of the surfaces of the two second sliding rods 23 are movably sleeved with second sliding sleeves 22. The two ends of the four second springs 25 are respectively fixedly connected to the second sliding sleeves 22 and the fixing plates 16. The two ends of the two second sliding rods 23 are fixedly connected to the inside of the backrest body 3 through positioning plates 24. A support rod 21 is fixedly installed on one side of each second sliding sleeve 22. A transmission strip 20 is fixedly installed at one end of each support rod 21. A roller 19 is closely attached to one side surface of each transmission strip 20. A shaft rod 18 is fixedly installed in the middle of each of the four rollers 19. A connecting frame 17 is rotatably installed between the two ends of each of the four shaft rods 18. One ends of the four connecting frames 17 are respectively fixedly connected to the two ends of the mutually adjacent sides of the two moving plates 4.

[0020] When the connecting bar 8 moves, it will drive the first sliding sleeve 11 to slide along the surface of the first sliding rod 12 through the connecting block 10 and simultaneously compress the first spring 14, and buffer through the elasticity of the first spring 14; when the moving plate 4 moves, it will drive the connecting frame 17 to move. When the connecting frame 17 moves, it will drive the roller 19 to push the transmission bar 20 through the shaft rod 18. When the transmission bar 20 is pushed, it will move. When the transmission bar 20 moves, it will drive the second sliding sleeve 22 to slide along the surface of the second sliding rod 23 through the support rod 21 and simultaneously compress the second spring 25, and buffer through the elasticity of the second spring 25; through double buffering, the backrest body 3 can be effectively prevented from being impacted and its service life can be improved.

Claims

1. A reinforcement mechanism for the backrest of a bullet train seat, including a bullet train seat (1), characterized in that: On both sides of the EMU seat (1), armrests (2) are fixedly installed. At one end of the EMU seat (1), a backrest body (3) is installed. On both sides inside the backrest body (3), moving plates (4) are provided. On the sides of the two moving plates (4) facing away from each other, mounting strips (7) are fixedly installed. On the sides of the two mounting strips (7) facing away from each other, rubber pads (9) are fixedly installed. In the middle of the upper and lower sides of the backrest body (3), mounting grooves (15) are opened. At the upper and lower ends of the two moving plates (4), sliders (5) are fixedly installed. On the inner walls of the upper and lower sides of the backrest body (3), sliding grooves (6) are opened. The four sliders (5) are respectively slidably installed inside the four sliding grooves (6). Between the two mounting grooves (15) and the inside of the backrest body (3), a buffer and strengthening mechanism is provided.

2. The strengthening mechanism for the backrest of a bullet train seat according to claim 1, characterized in that: The buffer and strengthening mechanism includes two fixing plates (16) and two fixing discs (13). The two fixing plates (16) are fixedly installed on both sides inside the backrest body (3). The two fixing discs (13) are arranged in the middle of the two mounting grooves (15). In the middle of the two fixing discs (13), first sliding rods (12) are fixedly installed. The two first sliding rods (12) are respectively fixedly installed inside the two mounting grooves (15). In the middle of the two fixing plates (16), second sliding rods (23) are fixedly installed.

3. The strengthening mechanism for the backrest of a bullet train seat according to claim 2, characterized in that: On the surfaces of the two first sliding rods (12), two first springs (14) are provided. At both ends of the surfaces of the two first sliding rods (12), first sliding sleeves (11) are movably sleeved. The two ends of the four first springs (14) are respectively fixedly connected to the first sliding sleeves (11) and the fixing discs (13). On the surfaces of the four first sliding sleeves (11), connecting strips (8) are fixedly installed through connecting blocks (10). One ends of the four connecting strips (8) are respectively fixedly connected to the two ends of the two connecting strips (8).

4. The enhanced mechanism for the backrest of a bullet train seat according to claim 2, characterized in that: On the surfaces of the two second sliding rods (23), two second springs (25) are provided. At both ends of the surfaces of the two second sliding rods (23), second sliding sleeves (22) are movably sleeved. The two ends of the four second springs (25) are respectively fixedly connected to the second sliding sleeves (22) and the fixing plates (16). At both ends of the two second sliding rods (23), they are fixedly connected to the inside of the backrest body (3) through positioning plates (24). On one side of each second sliding sleeve (22), a support rod (21) is fixedly installed. At one end of each support rod (21), a transmission strip (20) is fixedly installed. On one side surface of each transmission strip (20), a roller (19) is closely attached. In the middle of the four rollers (19), shaft rods (18) are fixedly installed. Between the two ends of the four shaft rods (18), connecting frames (17) are rotatably installed. One ends of the four connecting frames (17) are respectively fixedly connected to the two ends of the sides of the two moving plates (4) facing each other.

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