Liftable armrest structure of high-speed rail business seat

Abstract

The utility model discloses a liftable armrest structure of a high-speed rail business seat, and relates to the technical field of train seats. The utility model discloses a liftable armrest structure of a high-speed rail business seat. The liftable armrest structure comprises a shell and an armrest framework fixed in the shell, the top of the shell is of an opening structure; the handrail further comprises a handrail upper cover, an upper cover connecting shell, a motor, a lead screw, a connecting plate, a linear rail and a sliding block. The top of the upper cover connecting shell extends to the outside of the shell from an opening in the top of the shell; an accommodating cavity is formed in a shell body of the upper cover connecting shell; the handrail upper cover is fixed at the top of the upper cover connecting shell; the handrail framework comprises two vertical rods which are fixed in the accommodating cavity of the upper cover connecting shell at intervals, and a transverse connecting part which is fixed at the bottoms of the two vertical rods; the inner side of each vertical rod is independently and fixedly connected with a sliding block. According to the liftable handrail structure of the high-speed rail business seat, the lifting precision of the handrail is improved, the abrasion and the failure rate of each component structure are reduced, and the safety of passengers is improved.

Description

Technical Field

[0001] This utility model relates to the field of train seat technology, specifically to a height-adjustable armrest structure for a high-speed rail business seat. Background Technology

[0002] Business class seats are seats provided for business passengers on high-speed trains. Compared with ordinary seats, business class seats have more adjustment functions in their design; for example, they are usually equipped with height-adjustable armrests to improve riding comfort.

[0003] Currently, the main method for adjusting the armrest height in business chairs is through a cable-stayed lifting mechanism. This mechanism typically consists of a steel cable, pulleys, and a motor; its working principle is that the motor drives the steel cable to move along the pulleys, thereby controlling the armrest's height. However, the cable-stayed lifting mechanism presents the following technical challenges:

[0004] (1) Limited adjustment precision: The adjustment precision of the steel cable lifting structure is relatively low, making it difficult to achieve very precise handrail height adjustment; this may make it difficult for passengers to find the most comfortable handrail height, affecting the riding experience.

[0005] (2) High maintenance cost: The components in the cable lifting structure are prone to wear, which will increase the workload and cost of equipment maintenance; and when the cable wears to a certain extent, it may break, affecting the normal use of the handrail, and may even cause injury to passengers.

[0006] Therefore, how to solve the above-mentioned technical problems is a technical problem that those skilled in the art urgently need to solve.

[0007] 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

[0008] To address the aforementioned technical problems, this utility model provides a height-adjustable armrest structure for a high-speed rail business class seat, thereby resolving the issues raised in the background section.

[0009] This utility model provides the following technical solution: a height-adjustable armrest structure for a high-speed rail business seat, comprising: a housing and an armrest frame fixed in the housing; the top of the housing has an open structure; and further comprising: an armrest cover, a cover connecting shell, a motor, a lead screw, a connecting plate, a linear guide, and a slider;

[0010] The top cover connecting shell is movably inserted into the housing, and its top extends from the opening at the top of the housing to the outside of the housing; the inside of the top cover connecting shell is provided with a receiving cavity; the armrest cover is fixed to the top of the top cover connecting shell.

[0011] The handrail frame includes two uprights fixed at intervals in the cavity of the upper cover connecting shell, and a transverse connecting part fixed to the bottom of the two uprights;

[0012] Each upright has a slider fixedly attached to its inner side; a sliding rail is fitted onto the slider on the same side; a connecting plate is fixedly attached between the two rails.

[0013] The lower end of the lead screw is rotatably connected to the transverse connecting part, and the upper end of the lead screw is rotatably connected to the connecting plate; the motor is fixed on the handrail frame, and the motor spindle is connected to the lead screw drive; the cavity wall of the upper cover connecting shell accommodating cavity is fixedly connected to the linear rail.

[0014] Preferably, the motor has an embedded angle sensor for controlling the lifting height of the armrest cover.

[0015] Preferably, the transverse connecting part is one of a rod-shaped part, a column-shaped part, or a block-shaped part; or a combination of rod-shaped parts, column-shaped parts, and block-shaped parts.

[0016] Preferably, a drive gear is fixedly connected to the motor spindle; a driven gear is fixedly connected to the lead screw; the drive gear and the driven gear are driven by an adjusting gear meshing transmission.

[0017] The adjusting gear is connected to the self-locking unit. When the self-locking unit is pulled down by external force, the adjusting gear can be moved away from the driving gear and the driven gear, thus breaking the meshing state between the driving gear and the driven gear.

[0018] Preferably, the self-locking unit includes a pull-down shaft, a self-locking spring, and a handle;

[0019] The pull-down shaft is movably mounted on the transverse connecting part, and the adjusting gear is rotatably connected to the pull-down shaft; the self-locking spring is sleeved on the pull-down shaft and located above the transverse connecting part; the handle is fixed to the lower end of the pull-down shaft.

[0020] Preferably, the self-locking unit further includes a fixing plate and a limiting post, the fixing plate being U-shaped; the fixing plate is fixedly connected to the bottom of the transverse connecting part;

[0021] The pull-down shaft moves through the fixed plate, and a limit hole is provided on the edge of the pull-down shaft passage on the fixed plate; the limit post is fixed on the pull-down shaft and limited in the limit hole.

[0022] The present invention provides a height-adjustable armrest structure for a high-speed rail business seat, which has the following advantages:

[0023] (1) This utility model adopts a motor screw lifting control system. Because the screw is a precision mechanical component, it can provide more stable and precise adjustment, avoiding errors caused by friction, elasticity and other factors in the steel cable structure. This design can improve the accuracy of handrail lifting, thereby meeting the passenger's demand for precise adjustment.

[0024] (2) Compared with the steel cable lifting structure, the screw lifting structure has a lower wear and failure rate of each component, which reduces the frequency and cost of equipment maintenance; the motor drive also reduces the mechanical wear problems that may exist in the steel cable system, thereby reducing maintenance costs.

[0025] (3) Compared with the steel cable lifting structure, the screw lifting structure has a more solid and stable connection between its components, making it less prone to breakage or loosening, thus improving the safety of the system. At the same time, the precise cooperation between the rail and the slider ensures that the handrail is more stable and smooth during the lifting process, further protecting the safety of passengers. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure from the main view direction of this utility model;

[0027] Figure 2 This is a schematic diagram of the structure of this utility model after the casing has been removed;

[0028] Figure 3 This is a structural diagram of the present invention after the casing and the top cover connecting shell have been removed, showing the first angle of the structure.

[0029] Figure 4 This is a structural diagram of the present invention from the second angle after removing the casing and the top cover connecting shell;

[0030] Figure 5 This utility model Figure 4 A magnified view of part A in the image. Detailed Implementation

[0031] 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.

[0032] See Figures 1-5 To address the problems mentioned in the background section, this utility model provides a height-adjustable armrest structure for a high-speed rail business class seat to solve the aforementioned technical problems. The technical solution is as follows:

[0033] A height-adjustable armrest structure for a high-speed rail business seat includes: a housing 100 and an armrest frame 300 fixed in the housing 100; the top of the housing 100 has an open structure; the specific shapes of the housing 100 and the armrest frame 300 are not specifically limited, but can be designed according to the actual situation, and the shape design of the housing 100 and the armrest frame 300 is existing technology.

[0034] A height-adjustable armrest structure for a high-speed rail business seat also includes: an armrest cover 210, a cover connecting shell 220, a motor 510, a lead screw 520, a connecting plate 530, a linear rail 400, and a slider 320.

[0035] The top cover connecting shell 220 is movably inserted into the housing 100, and its top extends from the top opening of the housing 100 to the outside of the housing 100; the housing of the top cover connecting shell 220 has an accommodating cavity inside; the armrest cover 210 is fixed to the top of the top cover connecting shell 220.

[0036] The handrail frame 300 includes two uprights 310 fixed at intervals in the accommodating cavity of the upper cover connecting shell 220, and a transverse connecting part 330 fixed to the bottom of the two uprights 310.

[0037] Each upright 310 has a slider 320 fixedly connected to its inner side; a sliding rail 400 is fitted on the slider 320 on the same side; a connecting plate 530 is fixedly connected between the two rails 400.

[0038] The lower end of the lead screw 520 is rotatably connected to the transverse connecting part 330, and the upper end of the lead screw 520 is rotatably connected to the connecting plate 530; the motor 510 is fixed on the handrail frame 300, and the main shaft of the motor 510 is drivenly connected to the lead screw 520.

[0039] The cavity wall of the upper cover connecting shell 220 is fixedly connected to the linear rail 400. When the motor 510 operates, the lead screw 520 rotates, which can drive the connecting plate 530, the linear rail 400, the handrail cover 210, and the upper cover connecting shell 220 to rise and fall along the height direction of the slider 320.

[0040] In this embodiment, the motor 510 has an embedded angle sensor for controlling the lifting height of the armrest cover 210; the setting of the angle sensor ensures high-precision control of the armrest height.

[0041] In this embodiment, the transverse connecting part 330 is one of a rod-shaped part, a column-shaped part, or a block-shaped part; or a combination of rod-shaped parts, column-shaped parts, and block-shaped parts; specifically, the material selection and shape design of the transverse connecting part 330 are existing technologies, and its main purpose is to connect the two uprights 310 and provide an assembly position for the lower end of the lead screw 520.

[0042] In this embodiment, a drive gear 610 is fixedly connected to the main shaft of the motor 510; a driven gear 620 is fixedly connected to the lead screw 520; the drive gear 610 and the driven gear 620 are driven by meshing transmission through an adjusting gear 710.

[0043] The adjusting gear 710 is connected to the self-locking unit 700. When the self-locking unit 700 is pulled down by external force, the adjusting gear 710 can be moved away from the driving gear 610 and the driven gear 620 to unlock, thus breaking the meshing state between the driving gear 610 and the driven gear 620.

[0044] It should be noted that when equipment maintenance is required, the worker can control the self-locking unit 700 to pull down, disconnecting the meshing state between the drive gear 610 and the driven gear 620, allowing the equipment to disengage from the control of the electric drive system under certain circumstances.

[0045] In this embodiment, the self-locking unit 700 includes a pull-down shaft 720, a self-locking spring 730, and a handle 760; the pull-down shaft 720 is movably disposed on the transverse connecting portion 330, and the adjusting gear 710 is rotatably connected to the pull-down shaft 720; the self-locking spring 730 is sleeved on the pull-down shaft 720 and located above the transverse connecting portion 330; the handle 760 is fixedly connected to the lower end of the pull-down shaft 720.

[0046] Specifically, when it is necessary to disengage the electric control of the handrail lifting structure, the worker pulls down the handle 760 to move the adjusting gear 710 down, thereby disengaging the drive gear 610 and the driven gear 620. When it is necessary to restore the electric control of the handrail lifting, the worker releases the handle 760, and the adjusting gear 710, under the elastic force of the self-locking spring 730, keeps the drive gear 610 and the driven gear 620 engaged again.

[0047] In this embodiment, the self-locking unit 700 further includes a fixing plate 740 and a limiting post 750. The fixing plate 740 is U-shaped and is fixedly connected to the bottom of the transverse connecting part 330.

[0048] The pull-down shaft 720 movably passes through the fixed plate 740, and a limiting hole 751 is provided on the edge of the position where the pull-down shaft 720 passes through; a limiting post 750 is fixed on the pull-down shaft 720 and limited in the limiting hole 751. The structure of the fixed plate 740 and the limiting post 750 is designed to prevent the pull-down shaft 720 from rotating arbitrarily.

[0049] The present invention provides a height-adjustable armrest structure for a high-speed rail business seat, which has the following advantages: The present invention designs a height-adjustable armrest structure for a high-speed rail business seat, in which the leg rest and footrest can be adjusted in conjunction when the seat is adjusted, improving the convenience of operation; and the leg rest and footrest share a set of power drive mechanism as a power source, reducing production and usage costs.

[0050] 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.

[0051] 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.

[0052] 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 height-adjustable armrest structure for a high-speed rail business class seat, comprising: The casing and the armrest frame fixed in the casing; The top of the housing has an open structure; its features include: an armrest cover, a cover connecting shell, a motor, a lead screw, a connecting plate, a linear guide, and a slider; The top cover connecting shell is movably inserted into the housing, and its top extends from the opening at the top of the housing to the outside of the housing; the inside of the top cover connecting shell is provided with a receiving cavity; the armrest cover is fixed to the top of the top cover connecting shell. The handrail frame includes two uprights fixed at intervals in the cavity of the upper cover connecting shell, and a transverse connecting part fixed to the bottom of the two uprights; Each upright has a slider fixedly attached to its inner side; a sliding rail is fitted onto the slider on the same side; a connecting plate is fixedly attached between the two rails. The lower end of the lead screw is rotatably connected to the transverse connecting part, and the upper end of the lead screw is rotatably connected to the connecting plate; the motor is fixed on the handrail frame, and the motor spindle is connected to the lead screw drive; the cavity wall of the upper cover connecting shell accommodating cavity is fixedly connected to the linear rail.

2. The height-adjustable armrest structure of the high-speed rail business class seat according to claim 1, characterized in that, An angle sensor is embedded in the motor to control the lifting height of the armrest cover.

3. The height-adjustable armrest structure for high-speed rail business class seats according to claim 1, characterized in that, The transverse connecting part is one of the following: rod-shaped part, column-shaped part, or block-shaped part; or a combination of rod-shaped part, column-shaped part, and block-shaped part.

4. The height-adjustable armrest structure for high-speed rail business class seats according to claim 1, characterized in that, A drive gear is fixedly connected to the motor spindle; a driven gear is fixedly connected to the lead screw; the drive gear and the driven gear are driven by an adjusting gear meshing transmission. The adjusting gear is connected to the self-locking unit. When the self-locking unit is pulled down by external force, the adjusting gear can be moved away from the driving gear and the driven gear, thus breaking the meshing state between the driving gear and the driven gear.

5. The height-adjustable armrest structure for high-speed rail business class seats according to claim 4, characterized in that, The self-locking unit includes a pull-down shaft, a self-locking spring, and a handle; The pull-down shaft is movably mounted on the transverse connecting part, and the adjusting gear is rotatably connected to the pull-down shaft; the self-locking spring is sleeved on the pull-down shaft and located above the transverse connecting part; the handle is fixed to the lower end of the pull-down shaft.

6. The height-adjustable armrest structure for high-speed rail business class seats according to claim 5, characterized in that, The self-locking unit also includes a fixing plate and a limiting post. The fixing plate is U-shaped and is fixedly connected to the bottom of the transverse connecting part. The pull-down shaft moves through the fixed plate, and a limit hole is provided on the edge of the pull-down shaft passage on the fixed plate; the limit post is fixed on the pull-down shaft and limited in the limit hole.

Images