A headrest height adjusting device for a high-speed train seat

Abstract

The utility model discloses a kind of high-speed rail seat headrest height adjusting devices, it includes seat backrest and the headrest part of installation in seat backrest top, the middle part of the seat backrest is equipped with inner chamber, the top of seat backrest is fixedly installed with two through pipes, the bottom of two through pipes is extended to the inside of inner chamber, and the inside of two through pipes is movably inserted with height adjusting rod, the bottom of inner chamber inside is installed with double-output shaft motor one, the bottom of two height adjusting rods is respectively connected with the transmission of two outputs of double-output shaft motor one, the top of two height adjusting rods is fixedly installed with the U-shaped seat located in the bottom of headrest part, the inside of U-shaped seat is installed with double-output shaft motor two, the bottom of headrest part is connected with the two outputs of double-output shaft motor two to rotate and adjust headrest part;The high-speed rail seat headrest of the present application has height and angle adjusting structure, and the performance thereof can meet the use demand of high-speed rail seat.

Description

Technical Field

[0001] This utility model belongs to the field of high-speed train seat technology, specifically a high-speed train seat headrest height adjustment device. Background Technology

[0002] High-speed train seats are primarily designed to enhance passenger comfort and safety, employing advanced design concepts. These seats are typically ergonomically based, providing excellent lumbar and back support to reduce fatigue during long journeys. In terms of materials, they utilize high-quality fabrics or leather that are breathable, durable, and easy to clean and maintain. Seat layouts are mostly neatly arranged or in single rows, equipped with armrests and headrests to increase passenger comfort. Currently, however, the backrests of high-speed train seats can only be adjusted by rotating forward and backward; the height and angle of the backrests cannot be adjusted, thus failing to provide optimal support for passengers of different heights. Therefore, improvements are needed to address these issues. Utility Model Content

[0003] To achieve the above objectives, this utility model provides the following technical solution: a headrest height adjustment device for a high-speed train seat, comprising a seat backrest and a headrest portion installed at the top of the seat backrest. An inner cavity is formed in the middle of the seat backrest. Two through-tubes are fixedly installed at the top of the seat backrest, with the bottoms of both through-tubes extending into the inner cavity. Height adjustment rods are movably inserted into the interior of each through-tube. A dual-shaft motor is installed at the bottom of the inner cavity, with its two output ends respectively connected to the bottom of the two height adjustment rods. A U-shaped seat is fixedly installed between the tops of the two height adjustment rods at the bottom of the headrest portion. A second dual-shaft motor is installed inside the U-shaped seat, with its two output ends connected to the bottom of the headrest portion for rotational adjustment.

[0004] Preferably, a hollow block is fixedly installed at the bottom of the headrest, a U-shaped seat is located inside the hollow block, and two output ends of the dual-shaft motor are fixedly connected to connecting shafts. Both connecting shafts movably pass through the U-shaped seat, and the opposite ends of the two connecting shafts are fixedly connected to the hollow block.

[0005] Preferably, the two output ends of the dual-output shaft motor are symmetrically fixedly connected with threaded shafts. The two threaded shafts are rotatably connected to the side wall of the inner cavity through bearings. The surfaces of the two threaded shafts are threadedly connected with movable blocks that are slidably installed inside the inner cavity. The tops of the two movable blocks are fixedly installed with connecting blocks. The tops of the two connecting blocks are rotatably connected with lifting rods through movable pins. The tops of the two lifting rods are rotatably connected to the bottoms of the two height adjustment rods through movable pins, and the two lifting rods are staggered and cross-positioned.

[0006] Preferably, a leather protective cover is fixedly installed between the top of the seat back and the bottom of the headrest. The leather protective cover is continuously folded, and the folded leather protective cover is tilted downwards.

[0007] Compared with the prior art, the beneficial effects of this utility model are as follows: the headrest of this high-speed train seat has a height and angle adjustment structure, which can adapt to passengers of different heights, thereby providing the best support and effectively improving the comfort of passengers.

[0008] By activating the second dual-output shaft motor, the two connecting shafts rotate, which in turn rotates the two mounting blocks. This rotation, in turn, rotates the headrest, thus adjusting its angle to meet the needs of different passengers. Activating the first dual-output shaft motor rotates the two threaded shafts, causing the two moving blocks to move relative to each other. These moving blocks, through the two connecting blocks, press against the two lifting rods, which in turn push the two height adjustment rods upwards. This upward movement of the height adjustment rods then pushes the U-shaped seat, hollow block, and headrest upwards, thereby adjusting the headrest's height. Attached Figure Description

[0009] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0010] In the attached diagram:

[0011] Figure 1 This is a schematic diagram of the structure of the headrest height adjustment device for high-speed train seats according to this utility model;

[0012] Figure 2 This utility model Figure 1 A schematic diagram of the cross-sectional structure;

[0013] Figure 3 This utility model Figure 2 A partial structural diagram;

[0014] In the diagram: 1. Seat backrest; 2. Headrest; 3. Inner cavity; 4. Through tube; 5. Height adjustment rod; 6. Dual-shaft motor one; 7. U-shaped seat; 8. Dual-shaft motor two; 9. Hollow block; 10. Connecting shaft; 11. Threaded shaft; 12. Moving block; 13. Connecting block; 14. Lifting rod; 15. Leather protective cover. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0016] Depend on Figures 1 to 3 The present invention includes a seat backrest 1 and a headrest 2 installed on the top of the seat backrest 1. A leather protective cover 15 is fixedly installed between the top of the seat backrest 1 and the bottom of the headrest 2. The leather protective cover 15 is continuously folded and tilted downwards, so as to effectively wrap and protect the headrest 2. At the same time, the folded leather protective cover 15 allows the headrest 2 to be effectively moved upwards and rotated for adjustment.

[0017] An inner cavity 3 is provided in the middle of the seat backrest 1. Two through tubes 4 are fixedly installed at the top of the seat backrest 1. The bottom of both through tubes 4 extends into the inner cavity 3, and a height adjustment rod 5 is movably inserted into the inner cavity 4. A dual-shaft motor 6 is installed at the bottom of the inner cavity 3. The two output ends of the dual-shaft motor 6 are respectively connected to the bottom of the two height adjustment rods 5. A U-shaped seat 7 is fixedly installed between the tops of the two height adjustment rods 5 at the bottom of the headrest 2. A dual-shaft motor 8 is installed inside the U-shaped seat 7. The two output ends of the dual-shaft motor 8 are connected to the bottom of the headrest 2 to rotate and adjust the headrest 2.

[0018] A hollow block 9 is fixedly installed at the bottom of the headrest 2. A U-shaped seat 7 is located inside the hollow block 9. Both output ends of the dual-shaft motor 8 are fixedly connected to connecting shafts 10. Both connecting shafts 10 movably pass through the U-shaped seat 7, and the opposite ends of the two connecting shafts 10 are fixedly connected to the hollow block 9, thereby effectively adjusting the angle of the headrest 2.

[0019] Specifically, by activating the dual-output shaft motor 8, the two connecting shafts 10 rotate. The rotation of the two connecting shafts 10 drives the two mounting blocks 9 to rotate, which in turn drives the headrest 2 to rotate, thereby adjusting the angle of the headrest 2 to meet the needs of different passengers. At the same time, a switch for controlling the dual-output shaft motor 8 is provided on the seat handle, and the dual-output shaft motor 8 has a self-locking function when stopped, thus effectively ensuring the stability and firmness of the headrest 2 angle adjustment.

[0020] The two output ends of the dual-output shaft motor 6 are symmetrically fixedly connected with threaded shafts 11. The two threaded shafts 11 are rotatably connected to the side wall of the inner cavity 3 through bearings. The surfaces of the two threaded shafts 11 are threadedly connected with movable blocks 12 that are slidably installed inside the inner cavity 3. The tops of the two movable blocks 12 are fixedly installed with connecting blocks 13. The tops of the two connecting blocks 13 are rotatably connected with lifting rods 14 through movable pins. The tops of the two lifting rods 14 are rotatably connected to the bottoms of the two height adjustment rods 5 through movable pins. The two lifting rods 14 are staggered front and rear, so as to effectively adjust the height of the headrest 2.

[0021] Specifically, by activating the dual-output shaft motor 6, the two threaded shafts 11 are rotated. The rotation of the two threaded shafts 11 causes the two moving blocks 12 to move relative to each other. The two moving blocks 12, through the two connecting blocks 13, press against the two lifting rods 14. The two lifting rods 14 then push the two height adjustment rods 5 upwards. The upward movement of the two height adjustment rods 5 pushes the U-shaped seat 7, the hollow block 9, and the headrest 2 upwards, thereby adjusting the usage height of the headrest 2. At the same time, a switch for controlling the dual-output shaft motor 6 is provided on the seat handle.

[0022] The headrest of this high-speed train seat has a height and angle adjustment structure, which can accommodate passengers of different heights, thereby providing optimal support and effectively improving passenger comfort. At the same time, the height and angle adjustment structure is simple in design, convenient and easy to use and operate, and the adjustment is stable and reliable. Its performance can meet the usage requirements of high-speed train seats.

Claims

1. A headrest height adjustment device for a high-speed train seat, comprising a seat backrest (1) and a headrest portion (2) mounted on the top of the seat backrest (1), characterized in that: The seat backrest (1) has an inner cavity (3) in the middle. Two through tubes (4) are fixedly installed on the top of the seat backrest (1). The bottom of the two through tubes (4) extends into the inner cavity (3). A height adjustment rod (5) is movably inserted into the inner cavity (4). A dual-output shaft motor (6) is installed at the bottom of the inner cavity (3). The two output ends of the dual-output shaft motor (6) are respectively connected to the bottom of the two height adjustment rods (5). A U-shaped seat (7) is fixedly installed between the tops of the two height adjustment rods (5) at the bottom of the headrest (2). A dual-output shaft motor (8) is installed inside the U-shaped seat (7). The two output ends of the dual-output shaft motor (8) are connected to the bottom of the headrest (2) to rotate and adjust the headrest (2).

2. The headrest height adjustment device for a high-speed train seat according to claim 1, characterized in that: A hollow block (9) is fixedly installed at the bottom of the headrest (2). A U-shaped seat (7) is located inside the hollow block (9). Both output ends of the dual-output shaft motor (8) are fixedly connected to connecting shafts (10). Both connecting shafts (10) movably pass through the U-shaped seat (7), and the opposite ends of the two connecting shafts (10) are fixedly connected to the hollow block (9).

3. The headrest height adjustment device for a high-speed train seat according to claim 1, characterized in that: The two output ends of the dual-output shaft motor (6) are symmetrically fixedly connected with threaded shafts (11). The two threaded shafts (11) are rotatably connected to the side wall of the inner cavity (3) through bearings. The surfaces of the two threaded shafts (11) are threadedly connected with movable blocks (12) that are slidably installed inside the inner cavity (3). The tops of the two movable blocks (12) are fixedly installed with connecting blocks (13). The tops of the two connecting blocks (13) are rotatably connected with lifting rods (14) through movable pins. The tops of the two lifting rods (14) are rotatably connected to the bottoms of the two height adjustment rods (5) through movable pins, and the two lifting rods (14) are staggered front and back.

4. The headrest height adjustment device for a high-speed train seat according to claim 1, characterized in that: A leather protective cover (15) is fixedly installed between the top of the seat back (1) and the bottom of the headrest (2). The leather protective cover (15) is continuously folded and the folded leather protective cover (15) is tilted downward.

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