Telescopic leg support structure of first-class seat of high-speed rail

Abstract

The utility model discloses a telescopic leg support structure of a first-class seat of a high-speed rail, and relates to the technical field of train seats. A telescopic leg support structure of a first-class seat of a high-speed rail comprises a seat frame; the leg support further comprises a leg support framework, a leg support driving mechanism, a foot support sliding plate and a foot support telescopic transmission mechanism. The leg support framework is hinged to one side of the seat frame; vertically arranged sliding rails are arranged on the base; a sliding block is fixed to the back side of the foot support sliding plate, and the foot support sliding plate is slidably connected to a sliding rail of the leg support framework through the sliding block. The leg support driving mechanism is connected to the seat frame and can drive the leg support framework to rotate around the hinge point of the leg support framework and the seat frame. According to the telescopic leg support structure for the first-class seat of the high-speed rail, when the seat is adjusted, linkage adjustment of the leg support and the foot support can be achieved, and operation convenience is improved; and the leg support and the foot support share one set of power driving mechanism as a power source, so that the production cost and the use cost are reduced.

Description

Technical Field

[0001] This utility model relates to the field of train seat technology, specifically to a telescopic leg rest structure for a first-class seat on a high-speed train. Background Technology

[0002] First-class seats on high-speed trains are designed for business passengers. Compared to regular seats, first-class seats have more adjustment features. For example, they typically include adjustable leg rests and footrests to enhance the passenger experience.

[0003] Currently, when adjusting the extension angle of the leg rest and footrest on first-class seats on high-speed trains, passengers generally need to adjust the leg rest and footrest independently. This adjustment method not only increases the complexity of the adjustment operation, but also increases the production cost of first-class seats on high-speed trains, because the independent adjustment of the leg rest and footrest will require an independent power mechanism.

[0004] Therefore, the inventors believe that designing a telescopic leg rest structure for a first-class seat on a high-speed train that enables the coordinated adjustment of the leg rest and footrest, improves operational convenience, and saves production costs is a technical problem that those skilled in the art urgently need to solve.

[0005] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0006] To address the aforementioned technical problems, this utility model provides a telescopic leg rest structure for a first-class seat on a high-speed train, thereby resolving the issues raised in the background section.

[0007] This utility model provides the following technical solution: a telescopic leg rest structure for a first-class seat on a high-speed train, comprising: a seat frame; and further comprising: a leg rest frame, a leg rest drive mechanism, a foot rest sliding plate, and a foot rest telescopic transmission mechanism;

[0008] The leg support frame is hinged to one side of the seat frame; vertically arranged slide rails are provided on it;

[0009] A slider is fixed to the back of the footrest sliding plate, and the footrest sliding plate is slidably connected to the slide rail of the leg support frame through the slider;

[0010] The leg support drive mechanism is connected to the seat frame and can drive the leg support frame to rotate around the hinge point between the leg support frame and the seat frame.

[0011] The footrest telescopic transmission mechanism includes a linkage assembly and a driven gear; the driven gear is rotatably connected to the side of the seat frame via a rotating shaft, and one end of the linkage assembly is hinged to the slider, while the other end is fixedly connected to the rotating shaft.

[0012] A drive sector gear is fixed to the side of the leg support frame, and the drive sector gear meshes with the driven gear.

[0013] Preferably, the leg support drive mechanism includes a motor and a lead screw; the motor is a through-type lead screw stepper motor; the motor is fixed on the seat frame and the motor is driven by the lead screw; the end of the lead screw is hinged to the back side of the leg support frame.

[0014] Preferably, the linkage assembly includes a first linkage and a second linkage; one end of the first linkage is fixed to the rotating shaft, the other end of the first linkage is hinged to one end of the second linkage, and the other end of the second linkage is hinged to the slider.

[0015] Preferably, the footrest telescopic transmission mechanism includes two sets, which are respectively arranged on both sides of the seat frame; each side of the leg support frame is provided with an active sector gear, and each active sector gear is meshed with a driven gear on the footrest telescopic transmission mechanism on the same side.

[0016] Preferably, a foot pedal flip plate is rotatably connected to the bottom of the footrest sliding plate.

[0017] Preferably, a torsion spring is connected between the foot pedal flip plate and the bottom of the footrest sliding plate.

[0018] The present invention provides a telescopic leg rest structure for a first-class seat on a high-speed train, which has the following advantages: The present invention designs a telescopic leg rest structure for a first-class seat on a high-speed train, in which the leg rest and footrest can be adjusted in conjunction when the seat is adjusted, which improves the convenience of operation; and the leg rest and footrest share a set of power drive mechanism as a power source, which reduces production costs and usage costs. Attached Figure Description

[0019] Figure 1 This is a structural schematic diagram of the present invention from the first angle;

[0020] Figure 2 This is a structural schematic diagram of the present invention from a second angle;

[0021] Figure 3 This is a structural schematic diagram of the present invention from a third angle;

[0022] Figure 4 This is a structural schematic diagram of the present invention from the fourth angle;

[0023] Figure 5 This utility model Figure 2 Schematic diagram of the cross-sectional structure along the AA direction;

[0024] Figure 6 This is a schematic diagram of the footrest telescopic transmission mechanism in this utility model;

[0025] Figure 7 This utility model Figure 4 A magnified view of part B in the image;

[0026] Figure 8 This is a schematic diagram of the structure of this utility model after the foot pedal flip-up plate has been removed;

[0027] Figure 9 This is a schematic diagram of the structure of this utility model after removing the foot pedal flip plate and the footrest sliding plate. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0029] See Figures 1-9 To address the problems mentioned in the background section, this utility model provides a retractable leg rest structure for a first-class seat on a high-speed train, which solves the aforementioned technical problems. The technical solution is as follows:

[0030] A telescopic leg rest structure for a first-class seat on a high-speed train includes: a seat frame 100; and also includes: a leg rest frame 400, a leg rest drive mechanism, a footrest sliding plate 500, and a footrest telescopic transmission mechanism.

[0031] The leg support frame 400 is hinged to one side of the seat frame 100; vertically arranged slide rails 520 are provided on it;

[0032] A slider 750 is fixed to the back of the footrest sliding plate 500, and the footrest sliding plate 500 is slidably connected to the slide rail 520 of the leg support frame 400 through the slider 750.

[0033] The leg support drive mechanism is connected to the seat frame 100 and can drive the leg support frame 400 to rotate around the hinge point between the leg support frame 400 and the seat frame 100.

[0034] The footrest telescopic transmission mechanism includes a linkage assembly and a driven gear 710; the driven gear 710 is rotatably connected to the side of the seat frame 100 via a rotating shaft 720; one end of the linkage assembly is hinged to the slider 750, and the other end is fixedly connected to the rotating shaft 720.

[0035] A drive sector gear 510 is fixed to the side of the leg support frame 400, and the drive sector gear 510 is meshed with the driven gear 710.

[0036] In this embodiment, the leg support drive mechanism includes a motor 200 and a lead screw 300; the motor 200 is a through-type lead screw stepper motor; the motor 200 is fixed on the seat frame 100, and the motor 200 is drivenly connected to the lead screw 300; the end of the lead screw 300 is hinged to the back side of the leg support frame 400.

[0037] When the motor 200 is working, it can drive the lead screw 300 to move back and forth, thereby pushing the leg support frame 400 to lift or retract around the hinge point between the leg support frame 400 and the seat frame 100.

[0038] In this embodiment, the linkage assembly includes a first linkage 730 and a second linkage 740; one end of the first linkage 730 is fixed on the rotating shaft 720, the other end of the first linkage 730 is hinged to one end of the second linkage 740, and the other end of the second linkage 740 is hinged to the slider 750.

[0039] When the motor 200 is working and the drive screw 300 pushes the leg support frame 400 forward to lift it, the driving sector gear 510 on the leg support frame 400 rotates synchronously with the rotation of the leg support frame 400. The driving sector gear 510 synchronously drives the driven gear 710 to rotate, thereby driving the first connecting rod 730 and the second connecting rod 740 to unfold along the hinge position, thereby pulling the slider 750 to move down along the slide rail 520, pushing the footrest sliding plate 500 to extend and slide downward on the leg support frame 400, thus unfolding the footrest sliding plate 500.

[0040] When the motor 200 operates in reverse and the drive screw 300 pulls the leg support frame 400 back, the driving sector gear 510 on the leg support frame 400 rotates synchronously with the rotation of the leg support frame 400. The driving sector gear 510 synchronously drives the driven gear 710 to rotate, thereby driving the first connecting rod 730 and the second connecting rod 740 to be pulled back along the hinge position, thereby pulling the slider 750 to move upward along the slide rail 520, pushing the footrest sliding plate 500 to retract and slide upward on the leg support frame 400, thus retracting the footrest sliding plate 500.

[0041] In this embodiment, the footrest telescopic transmission mechanism includes two sets, which are respectively arranged on both sides of the seat frame 100; a driving sector gear 510 is respectively arranged on both sides of the leg support frame 400, and each driving sector gear 510 is meshed with a driven gear 710 on the footrest telescopic transmission mechanism on the same side. The two sets of footrest telescopic transmission mechanisms can improve the stability of the equipment's telescopic movement.

[0042] In this embodiment, a footrest slide plate 500 is rotatably connected to the bottom of a foot pedal flip plate 600; the foot pedal flip plate 600 can be manually opened and used as a foot pedal to further improve passenger comfort.

[0043] In this embodiment, a torsion spring is connected between the bottom of the foot pedal flap 600 and the bottom of the footrest sliding plate 500; when the passenger moves his / her foot away, the foot pedal flap 600 can automatically retract under the elastic tension of the torsion spring.

[0044] The working principle of the telescopic leg rest structure for a first-class seat on a high-speed train provided in this embodiment is as follows:

[0045] 1. When adjusting the seat, the motor 200 works, and the extension and retraction of the lead screw 300 pushes the leg support frame 400 to lift or retract around the hinge point between the leg support frame 400 and the seat frame 100, opening the leg support frame 400 to a certain angle.

[0046] 2. During the lifting or retraction of the leg support frame 400, the driving sector gear 510 on the leg support frame 400 rotates synchronously with the rotation of the leg support frame 400, generating a swing angle. This swing angle is driven by the driven gear 710, which in turn drives the linkage assembly to move, thereby pushing the footrest sliding plate 500 to extend and slide on the leg support frame 400. The extension and sliding of the footrest sliding plate 500 can change the length of the seat leg support, which can meet the needs of passengers of different heights.

[0047] The present invention provides a telescopic leg rest structure for a first-class seat on a high-speed train, which has the following advantages: The present invention designs a telescopic leg rest structure for a first-class seat on a high-speed train, in which the leg rest and footrest can be adjusted in conjunction when the seat is adjusted, which improves the convenience of operation; and the leg rest and footrest share a set of power drive mechanism as a power source, which reduces production costs and usage costs.

[0048] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units; they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs.

[0049] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0050] It is understood that those skilled in the art can make equivalent substitutions or changes based on the technical solution and concept of this utility model, and all such substitutions or changes should fall within the protection scope of the appended claims.

Claims

1. A high-speed first-class seat telescopic leg rest structure, comprising: The seat frame is characterized in further comprising a leg support frame, a leg support driving mechanism, a foot support sliding plate and a foot support telescopic transmission mechanism. The leg support frame is hinged at one side of the seat frame and is provided with vertically arranged slide rails. The foot support sliding plate is fixed with a sliding block at the back side and is slidably connected to the slide rails of the leg support frame through the sliding block. The leg support driving mechanism is connected to the seat frame and can drive the leg support frame to rotate around the hinge point between the leg support frame and the seat frame. The foot support telescopic transmission mechanism comprises a connecting rod assembly and a driven gear. The driven gear is rotatably connected to the side of the seat frame through a rotating shaft.

2. The high-speed train first-class seat telescopic leg rest structure according to claim 1, characterized in that, The leg support frame is fixed with a driving sector gear at the side.

3. The high-speed train first-class seat telescopic leg rest structure according to claim 1, characterized in that, The leg support driving mechanism comprises a motor and a screw rod.

4. The high-speed train first-class seat telescopic leg rest structure according to claim 1, characterized in that, The motor is a through-type screw rod stepping motor.

5. The high-speed train first-class seat telescopic leg rest structure according to claim 1, characterized in that, The motor is fixed to the seat frame and is drivingly connected to the screw rod.

6. The high-speed train first-class seat telescopic leg rest structure according to claim 5, characterized in that, The screw rod is hingedly connected to the back side of the leg support frame. The connecting rod assembly comprises a first connecting rod and a second connecting rod. The first connecting rod is fixed at one end to the rotating shaft and is hingedly connected at the other end to one end of the second connecting rod. The other end of the second connecting rod is hingedly connected to the sliding block. The foot support telescopic transmission mechanism comprises two groups. Each group is arranged at one side of the seat frame. Each side of the leg support frame is provided with one driving sector gear. Each driving sector gear is meshingly connected to the driven gear of the foot support telescopic transmission mechanism at the same side. The foot support sliding plate is rotatably connected at the bottom with a foot pedal turning plate. The foot pedal turning plate is connected between the foot support sliding plate and the bottom of the foot support sliding plate with a torsion spring.

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