Car seat backrest

Abstract

The utility model relates to the technical field of automobile seats, and discloses an automobile seat backrest, including a seat, the top of the seat is rotatably connected to the seat back, the top of the seat back is slidably connected to the headrest, the inner part of the seat back is rotatably connected to a rotating rod, the outer periphery of the rotating rod is fixedly connected to a connecting frame, the bottom of the connecting frame is fixedly connected to a connecting block, the bottom of the connecting block is provided with a fixing plate, one side of the fixing plate is fixedly connected to the connecting plate, and one side of the connecting plate is fixedly connected to a supporting plate. In the utility model, the rotating rod is driven to rotate by a motor, and when the rotating rod rotates, the connecting frame is driven to move, and when the connecting frame moves, the connecting block is driven to move at the same time, and when the connecting block moves, the fixed plate is driven to move, and when the fixed plate moves, the lumbar pad is driven to move at the same time through the connecting plate and the damping rod, so as to facilitate the seat adjustment according to users of different body shapes.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile seats, in particular to an automobile seat backrest. Background Art

[0002] Car is a widely used means of transportation. People can travel by car, especially long-distance travel, which makes it more convenient to reach the destination. Car seat is an indispensable part of car travel. There are different types of car seats, including single seats and multi-person seats. Single seats are usually the seats for the main driver and the co-driver. The comfort of car seats is an important measure of seat performance. Car seats include cushions and backrests. The cushions can be used for users to sit down, and the backrests can be used for users to relax on the backrests. Car seat backrest assemblies can usually adjust their overall tilt angle. Some car seat backrest assemblies can be tilted to nearly horizontal for users to lie down and rest.

[0003] The car seat back in the prior art is usually provided with an arc-shaped protrusion for supporting the user's waist, and the user's waist is supported by the position of the protrusion. However, the existing car seat back is difficult to adjust according to the seating of users of different body shapes. The position of the waist of users of different body shapes is different when they sit down, thereby weakening the supporting effect on the user's waist, resulting in fatigue of the passenger's waist during long-term driving, reducing the comfort of the car seat back. Therefore, a car seat back is proposed to solve the above problem. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a car seat backrest, which aims to improve the problem in the prior art that the seat backrest cannot be adjusted according to the sitting position of users of different body shapes.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a car seat backrest comprises a seat, the top of the seat is rotatably connected to the seat back, the top of the seat back is slidably connected to the headrest, the inside of the seat back is rotatably connected to a rotating rod, the outer periphery of the rotating rod is fixedly connected to a connecting frame, the bottom of the connecting frame is fixedly connected to a connecting block, a fixing plate is provided at the bottom of the connecting block, one side of the fixing plate is fixedly connected to a connecting plate, one side of the connecting plate is fixedly connected to a supporting plate, one side of the supporting plate is fixedly connected to a spring and a limiting rod, the other end of the spring is fixedly connected to a movable plate one, one end of the movable plate one is rotatably connected to a movable plate two, the other end of the movable plate two is rotatably connected to a lumbar pad, one side of the connecting plate is provided with a buffer assembly, and the interior of the seat back is provided with a driving assembly.

[0006] Through the above technical solution, the headrest can be conveniently adjusted according to the needs of the user, the support plate can conveniently support the spring and the limit rod, and the movable plate 2 can conveniently push out the lumbar pad, so that the lumbar pad can better fit the user's waist.

[0007] Furthermore, the driving assembly includes a motor, the motor is fixedly connected to the inside of the chair back, and one end of the rotating rod is fixedly connected to the output end of the motor;

[0008] Through the above technical solution, the motor can easily drive the rotating rod to rotate.

[0009] Further, the buffer assembly includes a damping rod, the damping rod is fixedly connected to one side of the connecting plate, and the other end of the damping rod is fixedly connected to one side of the waist pad;

[0010] Through the above technical solution, the damping rod can easily cushion the lumbar pad and easily push out the lumbar pad.

[0011] Further, a shift block is slidably connected inside the connecting block, a compression spring is fixedly connected to one side of the shift block, a clamping block is fixedly connected to the other side of the shift block, a clamping groove is provided inside the fixing plate, the clamping groove and the clamping block are clamped, and a limit assembly is provided inside the connecting block;

[0012] Through the above technical solution, when the shift block is moved, the compression spring will be squeezed, and at the same time, the shift block will drive the card block to move, so that the card block is separated from the card slot, and the lumbar pad can be replaced conveniently according to the needs of the user.

[0013] Further, the limiting assembly includes a limiting plate, the limiting plate is fixedly connected to the inside of the connecting block, and two compression springs are specifically provided, one of which is fixedly connected to one side of the limiting plate, and the other is fixedly connected to the other side of the limiting plate;

[0014] Through the above technical solution, the limiting plate can limit the two compression springs, thereby preventing the two compression springs from deviating when moving.

[0015] Furthermore, the movable plates 1 are specifically provided with two, and the two movable plates 1 are both slidably connected to the outer periphery of the limiting rod;

[0016] Through the above technical solution, the two movable plates can more conveniently buffer the squeezing force exerted on the waist pad.

[0017] Furthermore, one side of the chair back is rotatably connected to an armrest;

[0018] Through the above technical solution, the armrest can facilitate the user to place his arms, thereby improving the comfort during use.

[0019] Furthermore, the card blocks are specifically provided with two, and the two card blocks are both slidably connected inside the connecting block;

[0020] Through the above technical solution, the two clamping blocks can more firmly connect and fix the connecting block and the fixing plate.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, the motor drives the rotating rod to rotate, and when the rotating rod rotates, it drives the connecting frame to move, and when the connecting frame moves, it drives the connecting block to move at the same time, and when the connecting block moves, it drives the fixing plate to move, and when the fixing plate moves, it drives the lumbar pad to move at the same time through the connecting plate and the damping rod, so as to facilitate the seat adjustment according to users of different body shapes. At the same time, the lumbar pad can be pushed out under the action of the damping rod, so that the lumbar pad can better fit the user's waist.

[0023] 2. In the utility model, the compression spring is squeezed by pushing two shifting blocks. When the compression spring is squeezed, the shifting blocks will drive the card blocks to move, so that the card blocks are separated from the card slots. When the card blocks are separated from the card slots, the connecting frame and the fixing plate can be separated, so that the lumbar pad can be replaced conveniently according to the needs of the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A three-dimensional schematic diagram of a car seat backrest proposed by the utility model;

[0025] Figure 2 This is a structural schematic diagram of a motor for a car seat backrest proposed by the utility model;

[0026] Figure 3 This is a structural schematic diagram of a rotating rod of a car seat backrest proposed by the utility model;

[0027] Figure 4 The utility model is a structural schematic diagram of a card slot of a car seat backrest.

[0028] Legend:

[0029] 1. Seat; 2. Backrest; 3. Headrest; 4. Armrest; 5. Lumbar pad; 6. Motor; 7. Connecting frame; 8. Fixed plate; 9. Connecting plate; 10. Damping rod; 11. Support plate; 12. Spring; 13. Limiting rod; 14. Movable plate 1; 15. Movable plate 2; 16. Turning rod; 17. Connecting block; 18. Block; 19. Slot; 20. Dial block; 21. Compression spring; 22. Limiting plate. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] Reference Figure 1 , Figure 2 and Figure 3 The utility model provides an embodiment: a car seat back, including a seat 1, the top of the seat 1 is rotatably connected to the seat back 2, the top of the seat back 2 is slidably connected to the headrest 3, the headrest 3 can be conveniently adjusted according to the needs of the user, the inner rotation of the seat back 2 is connected to the rotating rod 16, the outer periphery of the rotating rod 16 is fixedly connected to the connecting frame 7, when the rotating rod 6 rotates, it will drive the connecting frame 7 to rotate at the same time, the bottom of the connecting frame 7 is fixedly connected to the connecting block 17, when the connecting frame 7 moves, it can conveniently drive the connecting block 17 to move, the bottom of the connecting block 17 is provided with a fixing plate 8, when the connecting block 17 moves, it will drive the fixing plate 8 to move, one side of the fixing plate 8 is fixedly connected to the connecting plate 9, when the fixing plate 8 moves, it can conveniently drive the connecting plate 9 to move.

[0032] Reference Figure 2 and Figure 3 One side of the connecting plate 9 is fixedly connected to a support plate 11, and one side of the support plate 11 is fixedly connected to a spring 12 and a limit rod 13. The support plate 11 can conveniently support the spring 12 and the limit rod 13. The other end of the spring 12 is fixedly connected to a movable plate 14. When the movable rod 14 moves, the spring 12 will be squeezed. One end of the movable plate 14 is rotatably connected to a movable plate 2 15. When the movable plate 2 15 moves, it will drive the movable plate 14 to move. The other end of the movable plate 2 15 is rotatably connected to a lumbar pad 5. The movable plate 2 15 can conveniently push out the lumbar pad 5, so that the lumbar pad 5 fits the user's waist better. A buffer component is provided on one side of the connecting plate 9, and a driving component is provided inside the chair back 2.

[0033] Reference Figure 2 and Figure 3 The driving component includes a motor 6, which is fixedly connected to the inside of the chair back 2. One end of the rotating rod 16 is fixedly connected to the output end of the motor 6. The motor 6 can conveniently drive the rotating rod 16 to rotate. The buffering component includes a damping rod 10, which is fixedly connected to one side of the connecting plate 9. The other end of the damping rod 10 is fixedly connected to one side of the lumbar pad 5. The damping rod 10 can conveniently buffer the lumbar pad 5 and conveniently eject the lumbar pad 5.

[0034] Reference Figure 4A shift block 20 is slidably connected inside the connecting block 17, a compression spring 21 is fixedly connected to one side of the shift block 20, and a clamping block 18 is fixedly connected to the other side of the shift block 20. A clamping groove 19 is provided inside the fixed plate 8, and the clamping groove 19 and the clamping block 18 are clamped together. When the shift block 20 is shifted, the compression spring 21 will be squeezed, and the shift block 20 will drive the clamping block 18 to move, so that the clamping block 18 is separated from the clamping groove 19, so that the lumbar pad 5 can be replaced conveniently according to the needs of the user. A limit assembly is provided inside the connecting block 17.

[0035] Reference Figure 4 The limiting assembly includes a limiting plate 22, which is fixedly connected to the inside of the connecting block 17. Two compression springs 21 are specifically provided, one of which is fixedly connected to one side of the limiting plate 22, and the other is fixedly connected to the other side of the limiting plate 22. The limiting plate 22 can limit the two compression springs 21, thereby preventing the two compression springs 21 from offsetting when moving.

[0036] Reference Figure 1 , Figure 2 and Figure 4 There are two movable plates 14, both of which are slidably connected to the outer periphery of the limit rod 13. One side of the chair back 2 is rotatably connected to the armrest 4, which can facilitate the user to place his arms, thereby improving the comfort during use. There are two clamping blocks 18, both of which are slidably connected to the inside of the connecting block 17. The two clamping blocks 18 can more firmly connect and fix the connecting block 17 to the fixed plate 8.

[0037] Working principle: When the lumbar pad 5 is adjusted according to users of different body shapes, the motor 6 will work, and when the motor 6 works, it will drive the rotating rod 16 to rotate, and when the rotating rod 16 rotates, it will drive the connecting frame 7 to move, and when the connecting frame 7 moves, it will drive the connecting block 17 to move at the same time, and when the connecting block 17 moves, it will drive the fixed plate 8 to move, and when the fixed plate 8 moves, it will drive the lumbar pad 5 to move at the same time through the connecting plate 9 and the damping rod 10, so as to facilitate the seating adjustment according to users of different body shapes, and at the same time, the lumbar pad 5 can be pushed out under the action of the damping rod 10, so that the lumbar pad 5 can better fit the user's waist.

[0038] When the lumbar pad 5 needs to be replaced, the compression spring 21 is squeezed by moving the two shifting blocks 20. When the compression spring 21 is squeezed, the shifting block 20 will drive the card block 18 to move, so that the card block 18 is disengaged from the card slot 19. When the card block 18 is disengaged from the card slot 19, the connecting frame 7 and the fixing plate 8 can be separated, so that the lumbar pad 5 can be conveniently replaced according to the needs of the user.

[0039] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A car seat back, comprising a seat (1), characterized in that: The top of the seat (1) is rotatably connected to a chair back (2), the top of the chair back (2) is slidably connected to a headrest (3), the interior of the chair back (2) is rotatably connected to a rotating rod (16), the outer periphery of the rotating rod (16) is fixedly connected to a connecting frame (7), the bottom of the connecting frame (7) is fixedly connected to a connecting block (17), a fixing plate (8) is provided at the bottom of the connecting block (17), one side of the fixing plate (8) is fixedly connected to a connecting plate (9), one side of the connecting plate (9) is fixedly connected to a supporting plate (11), one side of the supporting plate (11) is fixedly connected to a spring (12) and a limiting rod (13), the other end of the spring (12) is fixedly connected to a movable plate one (14), one end of the movable plate one (14) is rotatably connected to a movable plate two (15), the other end of the movable plate two (15) is rotatably connected to a lumbar pad (5), one side of the connecting plate (9) is provided with a buffer component, and the interior of the chair back (2) is provided with a driving component.

2. The automobile seat back according to claim 1, characterized in that: The driving assembly comprises a motor (6), the motor (6) being fixedly connected to the interior of the chair back (2), and one end of the rotating rod (16) being fixedly connected to the output end of the motor (6).

3. The automobile seat back according to claim 1, characterized in that: The buffer assembly comprises a damping rod (10), wherein the damping rod (10) is fixedly connected to one side of the connecting plate (9), and the other end of the damping rod (10) is fixedly connected to one side of the waist pad (5).

4. The automobile seat back according to claim 1, characterized in that: A shift block (20) is slidably connected inside the connecting block (17), a compression spring (21) is fixedly connected to one side of the shift block (20), a clamping block (18) is fixedly connected to the other side of the shift block (20), a clamping groove (19) is provided inside the fixing plate (8), the clamping groove (19) and the clamping block (18) are clamped together, and a limit assembly is provided inside the connecting block (17).

5. The automobile seat back according to claim 4, characterized in that: The limiting assembly comprises a limiting plate (22), wherein the limiting plate (22) is fixedly connected to the interior of the connecting block (17), and two compression springs (21) are specifically provided, wherein one of the compression springs (21) is fixedly connected to one side of the limiting plate (22), and the other compression spring (21) is fixedly connected to the other side of the limiting plate (22).

6. The automobile seat back according to claim 1, characterized in that: Specifically, two movable plates (14) are provided, and both movable plates (14) are slidably connected to the outer periphery of the limiting rod (13).

7. The automobile seat back according to claim 1, characterized in that: One side of the chair back (2) is rotatably connected to an armrest (4).

8. The automobile seat backrest according to claim 4, characterized in that: Specifically, two of the clamping blocks (18) are provided, and both of the two clamping blocks (18) are slidably connected inside the connecting block (17).

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