Cradle type high-speed rail seat movement framework

Abstract

The utility model discloses a cradle type high-speed rail seat movement framework, and belongs to the technical field of high-speed rail seats. Comprising a seat rest main body, a backrest main body arranged on the seat rest main body, a backrest framework arranged in the backrest main body, a seat frame framework arranged in the seat rest main body and connected and matched with the backrest framework, a leg rest fixed plate arranged at one end of the seat frame framework and a leg rest movable plate arranged on the leg rest fixed plate, a seat frame motor is arranged below the seat frame skeleton in the seat rest main body, and the seat frame motor is in driving connection with the seat frame skeleton; leg rest linkage fluted discs are symmetrically arranged on the seat frame skeleton, a rotating shaft is arranged below the seat frame skeleton, and seat frame linkage gears meshed with the leg rest linkage fluted discs are fixed to the two ends of the rotating shaft; linkage matching of the backrest framework, the seat frame framework and the leg rest fixing plate is achieved, the cradle type movement track is met, good riding experience is brought to passengers, and good comfort experience is achieved.

Description

Technical Field

[0001] This utility model relates to the field of high-speed rail seat technology, specifically a cradle-type high-speed rail seat motion frame. Background Technology

[0002] High-speed rail, or HSR for short, refers to a railway system designed to high standards and capable of allowing trains to travel safely at high speeds. To provide passengers with better rest on high-speed trains, seats are installed for passengers to relax.

[0003] High-speed rail seats consist of five main parts: seat frame, upholstery, electrical control system, motion rotation mechanism, and privacy cover. The seat frame is generally made of aluminum alloy, alloy steel, or other light alloy materials to provide basic support for passengers. In traditional high-speed rail seats, when passengers need to adjust the seat back angle, they release the seat locking mechanism by a handle and then change their sitting posture to adapt to the adjusted seat. However, the passenger's back curve does not adapt to the seat back, and the seat frame cannot meet the cradle-like motion trajectory, nor can it achieve the linkage between the high-speed rail seat back, seat back, and leg rest, affecting comfort. Therefore, it is necessary to design a cradle-like high-speed rail seat motion frame. Utility Model Content

[0004] The purpose of this invention is to provide a cradle-type high-speed rail seat motion frame to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a cradle-type high-speed rail seat motion frame, including a seat back body, a backrest body disposed on the seat back body, a backrest frame disposed within the backrest body, a seat frame frame disposed within the seat back body and connected to the backrest frame, a leg rest fixing plate disposed at one end of the seat frame frame, and a leg rest moving plate disposed on the leg rest fixing plate. A seat frame motor is disposed within the seat back body below the seat frame frame, and the seat frame motor is drivenly connected to the seat frame frame.

[0006] The seat frame is symmetrically provided with leg rest linkage gears, and a rotating shaft is provided below the seat frame. Both ends of the rotating shaft are fixed with seat frame linkage gears that mesh with the leg rest linkage gears.

[0007] The leg rest fixing plate is provided with a slide rail, and a slider is slidably fitted on the slide rail. A linkage rod is fixedly sleeved on the rotating shaft, and one end of the linkage rod is hinged to the slider.

[0008] The bottom of the seat frame is equipped with a retraction mechanism for retracting the leg rest fixing plate. The seat frame extends via a seat frame motor, causing the seat frame to move forward, which in turn moves the backrest frame. During this movement, the leg rest linkage gears on both sides of the seat frame rotate, which in turn rotates the shaft, which in turn rotates the linkage rod. The slider at the end of the linkage rod moves linearly along the slide rail on the leg rest fixing plate, causing the leg rest fixing plate to move, which in turn moves the leg rest movable plate. The retraction mechanism retracts the leg rest movable plate, achieving coordinated operation of the backrest frame, seat frame, and leg rest fixing plate. This provides a cradle-like motion trajectory, offering passengers a better riding experience and achieving excellent comfort. The extension length of the leg rest fixing plate is limited based on the gear ratio between the seat frame linkage gear and the leg rest linkage gear.

[0009] In a further embodiment, the recycling mechanism includes a gas spring located at the bottom of the seat frame. One end of the gas spring is connected to the leg rest fixing plate. A mounting bracket is also provided on one side of the gas spring. A tension spring seat is provided inside the mounting bracket. A tension spring is wound on the tension spring seat. One end of the tension spring is connected to the leg rest fixing plate. The gas spring pulls the leg rest fixing plate to move, and the tension spring pulls the leg rest fixing plate to move, which facilitates the recycling of the leg rest fixing plate.

[0010] In a further embodiment, the seat frame skeleton is provided with connecting brackets on both sides, and the backrest skeleton is provided with a guide seat on the upper part. The connecting bracket is provided with a guide hole that slides with the guide seat. The seat frame skeleton is hinged with a connecting bracket, and the top of the connecting bracket is fixedly connected to the backrest skeleton. When the seat frame skeleton moves, the angle of the backrest skeleton is adjusted by the connecting bracket. The movement of the backrest skeleton is stabilized by the cooperation between the connecting bracket and the guide seat.

[0011] In a further embodiment, a rack is fixed on the connecting frame one, and a guide hole two is opened on one side of the rack on the connecting frame one. A connecting shaft is provided between the connecting frames one, and both ends of the connecting shaft pass through the guide hole two and are connected to the backrest linkage gear. The backrest linkage gear meshes with the rack. Through the cooperation between the backrest linkage gear and the rack, the backrest frame moves stably.

[0012] In a further embodiment, a connecting handle is fixed inside the seat body and fixedly connected to the leg rest fixing plate. A fixing seat is fixed on the seat frame frame. The end of the connecting handle is provided with a rotating pin that rotates with the fixing seat. The rotating pin makes the leg rest fixing plate rotate stably.

[0013] In a further embodiment, a leg rest motor is provided inside the seat body below the seat frame. The leg rest motor is driven and connected to the leg rest moving plate, and the leg rest motor can conveniently push the leg rest moving plate to move.

[0014] In a further embodiment, a seat side footrest is provided on the outer side of the seat frame frame, and an electromagnetic clutch is provided inside the seat frame motor and the leg rest motor. The seat side footrest is electrically connected to the electromagnetic clutch. When the seat side footrest is stepped on, an electrical signal is triggered. The signal is transmitted to the coil of the electromagnetic clutch, which is energized to generate a magnetic field. Under the action of the magnetic field force, the armature of the electromagnetic clutch is attracted, causing the connecting part of the electromagnetic clutch to separate from the connecting part of the seat frame motor and the leg rest motor, thereby realizing the unlocking and disengagement of the seat frame motor and the leg rest motor.

[0015] Compared with the prior art, the beneficial effects achieved by this utility model are as follows: the seat frame extends through the movement of the seat frame motor, driving the seat frame skeleton to move forward, which in turn drives the backrest skeleton to move. During the movement of the seat frame skeleton, the leg rest linkage gears on both sides of the seat frame skeleton drive the seat frame linkage gears to rotate, which in turn drives the rotating shaft to rotate, which in turn drives the linkage linkage rod to rotate. The slider at the end of the linkage linkage rod moves linearly along the slide rail on the leg rest fixing plate and drives the leg rest fixing plate to move, which in turn drives the leg rest moving plate to move. The leg rest moving plate is retracted through the retraction mechanism, realizing the linkage and coordination of the backrest skeleton, seat frame skeleton, and leg rest fixing plate, satisfying the cradle-like movement trajectory, bringing passengers a better riding experience, and achieving a good comfort experience. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is an overall sectional view of the present invention;

[0018] Figure 3 This is a schematic diagram of the main structure of the seat of this utility model;

[0019] Figure 4 This is a schematic diagram of the mounting structure of the mounting bracket of this utility model;

[0020] Figure 5 This is a schematic diagram of the leg rest fixing plate structure of this utility model;

[0021] The attached figures are labeled as follows: 1. Backrest main body; 2. Seat main body; 3. Backrest frame; 4. Seat frame frame; 5. Seat frame motor; 6. Leg rest motor; 7. Leg rest fixing plate; 8. Leg rest moving plate; 9. Connecting handle; 10. Fixing seat; 11. Connecting bracket one; 12. Connecting bracket two; 13. Guide seat; 14. Leg rest linkage gear; 15. Seat frame linkage gear; 16. Rotating shaft; 17. Linkage rod; 18. Slider; 19. Slide rail; 20. Mounting bracket; 21. Tension spring seat; 22. Tension spring; 23. Gas spring; 24. Rack; 25. Connecting shaft; 26. Backrest linkage gear. Detailed Implementation

[0022] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the invention. However, it will be apparent to those skilled in the art that the invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid obscuring the invention.

[0023] Please see Figure 1-5 This utility model provides a technical solution: a cradle-type high-speed rail seat motion frame, including a seat back body 2, a backrest body 1 disposed on the seat back body 2, a backrest frame 3 disposed in the backrest body 1, a seat frame frame 4 disposed in the seat back body 2 and connected to the backrest frame 3, a leg rest fixing plate 7 disposed at one end of the seat frame frame 4 and a leg rest moving plate 8 disposed on the leg rest fixing plate 7, and a seat frame motor 5 disposed in the seat back body 2 below the seat frame frame 4, and the seat frame motor 5 is drivenly connected to the seat frame frame 4;

[0024] The seat frame 4 is symmetrically provided with a leg rest linkage gear 14, and a rotating shaft 16 is provided below the seat frame 4. Both ends of the rotating shaft 16 are fixed with seat frame linkage gears 15 that mesh with the leg rest linkage gear 14.

[0025] A slide rail 19 is provided on the leg rest fixed plate 7, and a slider 18 is slidably fitted on the slide rail 19. A linkage rod 17 is fixedly sleeved on the rotating shaft 16, and one end of the linkage rod 17 is hinged to the slider 18.

[0026] The bottom of the seat frame 4 is equipped with a retraction mechanism for retracting the leg rest fixing plate 7. The seat frame motor 5 extends, causing the seat frame 4 to move forward, which in turn causes the backrest frame 3 to move. During the movement of the seat frame 4, the leg rest linkage gear 14 on both sides of the seat frame 4 drives the seat frame linkage gear 15 to rotate, which in turn drives the rotating shaft 16 to rotate, which in turn drives the linkage link 17 to rotate. The slider 18 at the end of the linkage link 17 moves linearly along the slide rail 19 on the leg rest fixing plate 7 and drives the leg rest fixing plate 7 to move, which in turn drives the leg rest moving plate 8 to move. The retraction mechanism retracts the leg rest moving plate 8, realizing the linkage and coordination of the backrest frame 3, the seat frame 4, and the leg rest fixing plate 7, satisfying the cradle-like movement trajectory, providing passengers with a better riding experience and achieving a good comfort experience. The extension length of the leg rest fixing plate 7 is limited according to the gear ratio of the seat frame linkage gear 15 and the leg rest linkage gear 14.

[0027] In a further embodiment, the recycling mechanism includes a gas spring 23 located at the bottom of the seat frame 4. One end of the gas spring 23 is connected to the leg rest fixing plate 7. A mounting bracket 20 is also provided on one side of the gas spring 23. A tension spring seat 21 is provided inside the mounting bracket 20. A tension spring 22 is wound on the tension spring seat 21. One end of the tension spring 22 is connected to the leg rest fixing plate 7. The gas spring 23 pulls the leg rest fixing plate 7 to move, and the tension spring 22 pulls the leg rest fixing plate 7 to move, which facilitates the recycling of the leg rest fixing plate 7.

[0028] In a further embodiment, the seat frame 4 is provided with connecting brackets 11 on both sides, and the backrest frame 3 is provided with a guide seat 13 on the upper part. The connecting bracket 11 is provided with a guide hole that slides with the guide seat 13. The seat frame 4 is hinged with a connecting bracket 2 12. The top of the connecting bracket 2 12 is fixedly connected to the backrest frame 3. When the seat frame 4 moves, the backrest frame 3 is adjusted in angle through the connecting bracket 2 12. The movement of the backrest frame 3 is stable through the cooperation of the connecting bracket 11 and the guide seat 13.

[0029] In a further embodiment, a rack 24 is fixed on the connecting frame 11, and a guide hole 2 is provided on one side of the rack 24 on the connecting frame 11. A connecting shaft 25 is provided between the connecting frames 11, and both ends of the connecting shaft 25 pass through the guide hole 2 and are connected to the backrest linkage gear 26. The backrest linkage gear 26 meshes with the rack 24. Through the cooperation between the backrest linkage gear 26 and the rack 24, the backrest frame 3 moves stably.

[0030] In a further embodiment, a connecting handle 9 is fixed inside the seat body 2 and is fixedly connected to the leg rest fixing plate 7. A fixing seat 10 is fixed on the seat frame 4. The end of the connecting handle 9 is provided with a rotating pin that rotates with the fixing seat 10. The setting of the rotating pin makes the leg rest fixing plate 7 rotate stably.

[0031] In a further embodiment, a leg rest motor 6 is provided inside the seat body 2 below the seat frame 4. The leg rest motor 6 is driven and connected to the leg rest moving plate 8, and the leg rest motor 6 can conveniently push the leg rest moving plate 8 to move.

[0032] In a further embodiment, a seat side footrest is provided on the outer side of the seat frame 4, and an electromagnetic clutch is provided inside the seat frame motor 5 and the leg rest motor 6. The seat side footrest is electrically connected to the electromagnetic clutch. When the seat side footrest is stepped on, an electrical signal is triggered. The signal is transmitted to the coil of the electromagnetic clutch, which is energized to generate a magnetic field. Under the action of the magnetic field force, the armature of the electromagnetic clutch is attracted, causing the connecting part of the electromagnetic clutch to separate from the connecting part of the seat frame motor 5 and the leg rest motor 6, thereby realizing the unlocking and disengagement of the seat frame motor 5 and the leg rest motor 6.

[0033] Working principle: The seat frame motor 5 extends, driving the seat frame skeleton 4 forward. The connecting bracket 12 adjusts the angle of the backrest skeleton 3. The connecting bracket 11, in conjunction with the guide seat 13, stabilizes the movement of the backrest skeleton 3. The backrest linkage gear 26, in conjunction with the rack 24, further stabilizes the movement. During the movement of the seat frame skeleton 4, the leg rest linkage gears 14 on both sides of the seat frame skeleton 4 drive the seat frame linkage gear 15 to rotate, which in turn drives the rotating shaft 16 to rotate, which in turn drives the linkage rod 17 to rotate. The slider 18 at the end of the linkage rod 17 moves linearly along the slide rail 19 on the leg rest fixing plate 7, thus driving the leg rest fixing plate 7 to rotate. The movement of plate 7, in turn, drives the movement of leg rest plate 8. When the side foot pedal of the seat is stepped on, an electrical signal is triggered. The signal is transmitted to the coil of the electromagnetic clutch, which is energized to generate a magnetic field. Under the action of the magnetic field force, the armature of the electromagnetic clutch is attracted, causing the connecting part of the electromagnetic clutch to separate from the connecting parts of the seat frame motor 5 and the leg rest motor 6. This achieves the unlocking and disengagement of the seat frame motor 5 and the leg rest motor 6. The leg rest fixing plate 7 is moved by the gas spring 23 and the tension spring 22, which facilitates the retraction of the leg rest plate 8. This achieves the linkage and coordination of the backrest frame 3, the seat frame frame 4, and the leg rest fixing plate 7, satisfying the cradle-like movement trajectory and providing passengers with a better riding experience, thus achieving a good comfort experience.

[0034] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present invention, various equivalent transformations can be made to the technical solution of the present invention, and all such equivalent transformations fall within the protection scope of the present invention.

Claims

1. A cradle-type high-speed rail seat frame, comprising a seat back body (2), a backrest body (1) disposed on the seat back body (2), a backrest frame (3) disposed within the backrest body (1), a seat frame frame (4) disposed within the seat back body (2) and connected to the backrest frame (3), a leg rest fixing plate (7) disposed at one end of the seat frame frame (4), and a leg rest movable plate (8) disposed on the leg rest fixing plate (7), characterized in that: The seat back body (2) is provided with a seat frame motor (5) located below the seat frame skeleton (4), and the seat frame motor (5) is drivenly connected to the seat frame skeleton (4); The seat frame (4) is symmetrically provided with a leg rest linkage gear (14), and a rotating shaft (16) is provided below the seat frame (4). The two ends of the rotating shaft (16) are fixed with seat frame linkage gears (15) that mesh with the leg rest linkage gear (14). The leg rest fixing plate (7) is provided with a slide rail (19), and a slider (18) is slidably fitted on the slide rail (19). A linkage rod (17) is fixedly sleeved on the rotating shaft (16), and one end of the linkage rod (17) is hinged to the slider (18). The bottom of the seat frame (4) is provided with a recycling mechanism for recycling the leg rest fixing plate (7).

2. The cradle type high-speed train seat motion skeleton according to claim 1, characterized in that: The recycling mechanism includes a gas spring (23) located at the bottom of the seat frame (4). One end of the gas spring (23) is connected to the leg rest fixing plate (7). A mounting bracket (20) is also provided on one side of the gas spring (23). A tension spring seat (21) is provided inside the mounting bracket (20). A tension spring (22) is wound on the tension spring seat (21). One end of the tension spring (22) is connected to the leg rest fixing plate (7).

3. The cradle type high-speed train seat motion skeleton according to claim 1, characterized in that: The seat frame (4) has a connecting frame 1 (11) on both sides, and the backrest frame (3) has a guide seat (13) on the upper part. The connecting frame 1 (11) has a guide hole 1 that slides with the guide seat (13). The seat frame (4) has a connecting frame 2 (12) hinged on it. The top of the connecting frame 2 (12) is fixedly connected to the backrest frame (3).

4. The cradle type high-speed train seat motion skeleton according to claim 3, characterized in that: A rack (24) is fixed on the first connecting frame (11). A guide hole (2) is provided on the first connecting frame (11) on one side of the rack (24). A connecting shaft (25) is provided between the first connecting frames (11). Both ends of the connecting shaft (25) pass through the guide hole (2) and are connected to the backrest linkage gear (26). The backrest linkage gear (26) meshes with the rack (24).

5. The cradle type high-speed train seat motion skeleton according to claim 1, characterized in that: The seat body (2) is fixed with a connecting handle (9) that is fixedly connected to the leg rest fixing plate (7). The seat frame skeleton (4) is fixed with a fixing seat (10). The end of the connecting handle (9) is provided with a rotating pin that rotates with the fixing seat (10).

6. The cradle type high-speed train seat motion skeleton according to claim 1, characterized in that: The seat body (2) is provided with a leg rest motor (6) located below the seat frame (4), and the leg rest motor (6) is driven and connected to the leg rest moving plate (8).

7. The cradle type high-speed train seat motion skeleton according to claim 6, characterized in that: The seat frame (4) has a seat side foot pedal on the outside, and the seat frame motor (5) and leg rest motor (6) are equipped with electromagnetic clutches. The seat side foot pedal is electrically connected to the electromagnetic clutches.

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