Multifunctional cabinet for business cabin of railway vehicle

Abstract

The invention relates to a multifunctional cabinet for a business cabin of a railway vehicle, and the multifunctional cabinet comprises a side cabinet which is fixedly installed on the inner side wall of a cabin body of the business cabin; the triangular cabinet group comprises a pair of triangular cabinets which are connected together and are mounted on the side cabinets in a sliding manner, and each triangular cabinet comprises a working table top, a supporting base, a built-in foot cavity and a liftable television which is positioned on the front side and the rear side of the triangular cabinet and can move up and down between a storage position and a lifting position; when the liftable television is in the lifting position, the built-in foot cavity is completely exposed; and the horizontal shifting device is mounted in the side cabinet and is arranged to be capable of driving the triangular cabinet group to switch between the forward position and the backward position according to the driving direction of the railway vehicle. The invention not only provides a working table top and a rest, but also can adjust the lifting of the television, not only can realize the reversing of the built-in foot cavity, but also can realize the distance adjustment of the built-in foot cavity, and greatly improves the riding experience feeling.

Description

Technical Field

[0001] The present invention relates to the technical field of rail vehicles, and in particular to a multifunctional cabinet for a business class of a rail vehicle. Background Art

[0002] With the rapid development of high-speed rail, rail vehicle passengers have increasingly higher requirements for the riding experience. Therefore, in recent years, in order to improve the quality of the carriages and meet the personalized needs of passengers, some rail vehicles are equipped with televisions, tables and other equipment inside the carriages.

[0003] However, TVs are usually located on the inner walls at both ends of the carriage, and the vehicle controls the playback uniformly. Although the TVs in some vehicles can be adjusted up and down, the height of the TV cannot always meet the needs of passengers in the entire carriage at the same time. It is either too high or too low, and not comfortable enough.

[0004] In addition, the tables provided in the car are either fixed on the back of the seats, which makes it inconvenient for passengers sitting in the back seats to get in and out; or separate, fixed-position tables are provided in front of the seats, which takes up a lot of space in the car, and they cannot be adjusted fore and aft after the vehicle changes direction.

[0005] In addition, when a passenger adjusts his or her sitting position, such as half-lying down, during the travel of a rail vehicle, there is nowhere to put his or her feet, and it is very uncomfortable to put them on the ground.

[0006] The above mentioned problems cannot meet the passengers' increasing requirements for riding experience, especially for the business class of rail vehicles. There is an urgent need to develop a product that can solve all the above problems. Summary of the Invention

[0007] In order to solve the above-mentioned problems in the prior art, it would be advantageous to provide a multifunctional cabinet for a business class vehicle on a railway vehicle that occupies a small space, has multiple functions and can improve the riding experience.

[0008] To achieve the above objectives, the present invention provides a multifunctional cabinet for a business class passenger compartment of a railway vehicle, comprising: Side cabinets, which are fixedly installed on the inner side wall of the business class cabin; A triangular cabinet set comprising a pair of triangular cabinets connected together and slidably mounted on a side cabinet, each triangular cabinet comprising a work surface, a support base, a built-in leg cavity, and a liftable television located on the front and rear sides of the triangular cabinet and capable of moving up and down between a stowed position and a raised position, wherein the built-in leg cavity on one side of the liftable television is fully exposed when the liftable television is in the raised position; The horizontal shifting device is installed in the side cabinet and is configured to drive the triangle cabinet group to switch between the forward position and the backward position according to the travel direction of the rail vehicle.

[0009] Furthermore, the side cabinet includes a side cabinet body installed on the inner wall of the business class cabin, and a side cabinet body armrest and a side cabinet base frame installed on the top and bottom of the side cabinet body respectively; a pair of triangular cabinets are fixed together via an upper connecting bracket and a lower connecting bracket, wherein the upper connecting bracket is fixedly connected to the work surface of a pair of triangular cabinets at both ends thereof, and the lower connecting bracket is fixedly connected to the support base of a pair of triangular cabinets at both ends thereof.

[0010] Furthermore, guide rails are installed on the armrests of the side cabinet body and the bottom frame of the side cabinet; and sliders slidably connected to the guide rails are installed on the work surface and support base of each triangular cabinet.

[0011] Furthermore, the horizontal shifting device includes a driving motor, a wire rope, a wire rope winding wheel, multiple wire rope winding wheels, and a wire rope crimping seat, wherein the wire rope crimping seat is installed on the upper connecting bracket and crimps the wire rope. The driving motor drives the wire rope winding wheel to rotate to drive the wire rope to move clockwise or counterclockwise, thereby driving the upper connecting bracket and then driving the triangle cabinet group to shift horizontally.

[0012] Furthermore, three limit sensors are installed on the side cabinet body, and a limit sensor plate is installed on the wire rope crimping seat.

[0013] Furthermore, each triangular cabinet also includes two side column assemblies, a central column assembly and a lifting drive mechanism corresponding to each liftable TV. Each liftable TV is located between the side column assembly and the central column assembly and is movably mounted on the two.

[0014] Furthermore, when the rail vehicle moves forward, the liftable TV on the rearward side of the triangular cabinet can be lifted up to expose the built-in foot cavity on that side. At this time, the liftable TV on the other side (i.e., the forward side of the triangular cabinet) is in the storage position; when the rail vehicle changes direction, the liftable TV on the other side of the triangular cabinet can be lifted up to expose the built-in foot cavity on that other side. At this time, the liftable TV on the above side is in the storage position.

[0015] Furthermore, the top of the support base is provided with a wear-resistant foot pad covering.

[0016] Furthermore, the liftable TV is connected to the side column assembly and the center column assembly via a lift assembly so as to be movably connected up and down, and the lift drive mechanism is configured to drive the lift assembly to move the liftable TV up and down.

[0017] Going a step further: The lifting drive mechanism includes a drive motor, a steel wire rope, a steel wire rope winding wheel, a steel wire rope transfer bearing, and a steel wire rope winding wheel, wherein the drive motor is installed in the support base and drives the steel wire rope winding wheel to rotate, thereby driving the steel wire rope to move clockwise or counterclockwise, and the steel wire rope transfer bearing and the steel wire rope winding wheel are respectively installed at the bottom and top of the central column assembly; The lifting assembly includes a synchronous shaft assembly and fixed seats at both ends of the synchronous shaft assembly, wherein the synchronous shaft assembly is meshed with the gear racks of the side column assembly and the center column assembly at both ends, and each fixed seat is slidably connected to the side column assembly and the center column assembly; and wherein, The fixed seat of the lifting assembly connected to the central column assembly is provided with a wire rope groove, and a wire rope pressure plate installed on the fixed seat at the rope groove position and pressing the wire rope, thereby driving the lifting assembly to move when the wire rope moves.

[0018] Furthermore, the center column assembly includes a center column, a pair of racks mounted on the center column, and a pair of guide rails, and the pair of guide rails are located on both sides of the pair of racks; the side column assembly includes side columns, guide rails and racks mounted on the side columns, wherein the guide rails and racks are symmetrically arranged with the corresponding guide rails and racks on the center column; in the lifting assembly, the synchronization shaft assembly includes a synchronization shaft rotatably mounted on a fixed seat at both ends, and gears fixedly mounted on both ends of the synchronization shaft and located on the outside of the fixed seat and meshing with the racks; wherein a slider adapted to the guide rail is provided on the side of the fixed seat facing the guide rail.

[0019] Furthermore, the lifting assembly also includes an inspection decorative cover, which is detachably mounted on the fixed seat at both ends; the synchronization shaft is rotatably mounted on the fixed seat via a needle bearing; the center column is also equipped with a TV roller component including a TV roller, and the liftable TV is provided with a groove on its outer shell that is slidably connected to the TV roller.

[0020] Compared with the prior art, the present invention has the following advantages: 1) A pair of triangular cabinets are connected together and slide back and forth relative to the side cabinets, so that the front and rear positions of the triangular cabinets can be adjusted when the rail vehicle changes direction; 2) The setting of the work surface on each triangular cabinet can meet the passengers' needs for office work, tea drinking, etc.; the triangular cabinets are constructed into a triangle, which can minimize the occupation of the carriage space; the purpose of the setting of the built-in foot cavity is to meet the human-machine needs within a limited space, that is, to allow passengers to have a comfortable place to rest their feet when watching TV (TV is raised); by directly setting a liftable TV on the triangular cabinet, passengers can adjust the height of the TV according to their own needs, so that they can be in the most comfortable posture Watch TV; 3) Through the setting of the liftable TV and the built-in foot cavity on the triangular cabinet and the mobility of the triangular cabinet group, not only the reversal of the built-in foot cavity can be achieved, but also the distance adjustment of the built-in foot cavity can be achieved, that is, the distance of the built-in foot cavity relative to the passenger can be adjusted, thereby improving comfort; 4) Through the sliding connection between the triangular cabinet and the side cabinet and the setting of the horizontal shifting device, a pair of triangular cabinets in the triangular cabinet group can be moved into place at the same time; 5) Through the setting of a lifting drive mechanism including a steel wire rope, a lifting assembly with a synchronous shaft, a gear and a slider, and a side column and a center column including a slide rail and a rack, the TV can always remain in a horizontal state during the lifting process, and the height adjustment is very smooth.

[0021] These and other aspects of the present invention will be more clearly elucidated with reference to the embodiments described hereinafter. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The structure and further objects and advantages of the present invention will be better understood from the following description taken in conjunction with the accompanying drawings, in which like reference numerals identify like elements: Figure 1 is a perspective schematic diagram of a multifunctional cabinet for a business class of a railway vehicle according to a specific embodiment of the present invention; Figure 2 yes Figure 1 The multifunctional cabinet for the business class of the railway vehicle is shown in a plan view from the front; Figure 3 yes Figure 2 The schematic diagram of the structure of the horizontal shift device of the multifunctional cabinet for the business class of a railway vehicle is shown; Figure 4 yes Figure 3 A perspective exploded view of the horizontal shifting device shown; Figure 5 yes Figure 1 A side view of a multifunctional cabinet for the business class of a rail vehicle is shown; Figure 6 yes Figure 5 An enlarged view of a portion I of a multifunctional cabinet for a business class of a railway vehicle is shown; Figure 7 yes Figure 5 An enlarged view of a portion II of the multifunctional cabinet for the business class of a railway vehicle is shown; Figure 8 yes Figure 1 A three-dimensional schematic diagram of a triangular cabinet of a multifunctional cabinet for a business class of a railway vehicle is shown; Figure 9 yes Figure 8 A perspective diagram of a triangular cabinet with a liftable TV on one side in a raised position, exposing the built-in foot cavity; Figure 10 yes Figure 9 The three-dimensional exploded view of the triangle cabinet shown; Figure 11 yes Figure 9 The schematic diagram of the structure of the liftable TV, lift drive mechanism, lift assembly, side column assembly and center column assembly of the triangle cabinet shown; Figure 12 yes Figure 11 An enlarged view of detail III of the triangular cabinet shown; Figure 13 yes Figure 10 A perspective exploded view of the lifting assembly of the triangle cabinet shown; Figure 14 yes Figure 10 A perspective exploded view of the central column assembly of the triangular cabinet shown; Figure 15 yes Figure 10 Exploded perspective view of the side column assembly of the triangular cabinet shown. DETAILED DESCRIPTION

[0023] The specific embodiments of the present invention will be described below with reference to the accompanying drawings.

[0024] like Figures 1 to 7 As shown, and reference Figures 8 to 15 According to a specific embodiment of the present invention, a multifunctional cabinet for a business class of a railway vehicle comprises: a triangular cabinet group, a side cabinet 300 and a horizontal shift device 500. The side cabinet 300 is fixedly mounted on the inner wall of the business class cabin; the triangular cabinet group comprises a pair of triangular cabinets 100 connected together and slidably mounted on the side cabinet 300, each triangular cabinet 100 comprising a work surface 101, a support base 103, a built-in foot cavity 109, and a plurality of support legs 109 located on the front and rear sides of the triangular cabinet 100 and capable of being placed in a storage position (see FIG. 1 ). Figure 9 The liftable TV on the right side of the center) and raised position (see Figure 9The liftable TV 102 moves up and down between the two positions (as shown in the state of the liftable TV on the left in the middle), wherein the built-in foot cavity 109 is completely exposed when the liftable TV 102 is in the raised position; the horizontal shift device 500 is installed in the side cabinet 300 and is configured to drive the triangle cabinet group to switch between the forward position and the rearward position according to the driving direction of the rail vehicle.

[0025] For example Figures 1 to 7 As shown, in this embodiment, the side cabinet 300 includes a side cabinet body 301 installed on the inner wall of the cabin of the business class, and a side cabinet body armrest 311 and a side cabinet base frame 331 installed on the top and bottom of the side cabinet body 301 respectively; a pair of triangular cabinets 100 are fixed together via an upper connecting bracket 201 and a lower connecting bracket 203, wherein the upper connecting bracket 201 is fixedly connected to the work surface 101 of a pair of triangular cabinets 100 at both ends thereof, and the lower connecting bracket 203 is fixedly connected to the support base 103 of a pair of triangular cabinets 100 at both ends thereof.

[0026] like Figures 5 to 7 As shown, in this embodiment, guide rails 321 are installed on the side cabinet body armrest 311 and the side cabinet bottom frame 331; a slider 341 slidably connected to the guide rails 321 is installed on the work surface 101 and the support base 103 of each triangular cabinet 100. Figure 3 and Figure 4 As shown, and reference Figure 1 and Figure 2 In this embodiment, the horizontal shifting device 500 includes a drive motor 501, a wire rope 503, a wire rope reel 505, multiple wire rope winding wheels 507, and a wire rope crimping seat 509. The wire rope crimping seat 509 is mounted on the upper connecting bracket 201 and crimps the wire rope 503. The drive motor 501 drives the wire rope reel 505 to rotate, driving the wire rope 503 to move clockwise or counterclockwise, thereby driving the upper connecting bracket 201 and, in turn, the horizontal shifting of the triangular cabinet group. When the upper connecting bracket 201 drives the two triangular cabinets 100 via the wire rope 503, the triangular cabinets 100 move relative to the side cabinets 300 via the slider guide structure.

[0027] For example Figure 3 and Figure 4 As shown, in this embodiment, three limit sensors 502 are installed on the side cabinet body 301, and a limit sensor plate 504 is installed on the wire rope crimping seat 509, thereby forming three motion limits to prevent the triangular cabinet group from moving too much and causing collisions.

[0028] like Figure 8 and Figure 15As shown, in this embodiment, a triangular cabinet 100 is configured to be mounted on the inside of a rail vehicle in a manner that allows for forward and backward movement. The triangular cabinet 100 also includes a central column assembly 105 and two side column assemblies 107. The triangular cabinet 100 also includes a lift drive mechanism 104 corresponding to each liftable television 102. The liftable television 102 is located between the central column assembly 105 and each side column assembly 107 and is movably mounted on both.

[0029] In this embodiment, when the rail vehicle moves forward, the side of the triangle cabinet 100 facing the rear (for example Figure 9 The liftable TV 102 on the left side of the triangle cabinet 100 can be raised (i.e., in the raised position), thereby exposing the built-in foot cavity 109 on that side. Passengers on seats on that side can then watch TV and place their feet in the built-in foot cavity 109. At this time, the liftable TV 102 on the front side of the triangle cabinet 100 descends to the storage position. When the rail vehicle reverses direction, i.e., moves backward, the liftable TV 102 on the other side of the triangle cabinet can be raised, thereby exposing the built-in foot cavity on that side. Passengers on seats on that side can then watch TV and place their feet in the built-in foot cavity 109. At this time, the liftable TV 102 on the rear side of the triangle cabinet 100 descends to the storage position. In other words, the lifting and lowering of the liftable TV 102 can achieve the reversal of the built-in foot cavity 109.

[0030] Of course, if the rail vehicle needs to change direction, in order to adjust the length of the built-in foot cavity 109 after the change, that is, to adjust the distance between the passenger seat and the built-in foot cavity 109, it is necessary to first move the front and rear positions of the lower triangle cabinet so that the passengers using the liftable TV 102 and the built-in foot cavity 109 on the other side can have a suitable distance relative to the triangle cabinet 100.

[0031] It should be noted that if Figure 10 As shown, in this embodiment, in order to increase the wear resistance and wipeability of the support base 103, a wear-resistant foot pad covering component 113 is provided on the top thereof.

[0032] like Figure 10 As shown, in this embodiment, the liftable TV 102 is connected to the side column assembly 107 and the center column assembly 105 via the lifting assembly 106 so as to be movably connected up and down, and the lifting drive mechanism 104 is configured to drive the lifting assembly 106 to move the liftable TV 102 up and down.

[0033] like Figure 11 and Figure 12 As shown, and reference Figure 14In this embodiment, the lifting drive mechanism 104 includes a drive motor 114, a wire rope 134, a wire rope winding wheel 154, a wire rope transfer bearing 174 and a wire rope winding wheel 194, wherein the drive motor 114 is installed in the support base 103, and drives the wire rope winding wheel 154 to rotate to drive the wire rope 134 to move clockwise or counterclockwise, and the wire rope transfer bearing 174 and the wire rope winding wheel 194 are respectively installed at the bottom and upper end of the central column assembly 105.

[0034] like Figure 13 As shown, and reference Figure 11 、 Figure 12 and Figure 14 In this embodiment, the lifting assembly 106 includes a synchronous shaft assembly 116 and a fixed seat 136 located at both ends of the synchronous shaft assembly, wherein the synchronous shaft assembly 116 is respectively engaged with the side column assembly 107 and the center column assembly 105 at its two ends, and each fixed seat 136 is respectively slidably connected to the side column assembly 107 and the center column assembly 105; and wherein, the fixed seat 136 of the lifting assembly 106 connected to the center column assembly 105 is provided with a wire rope passing groove 1360, and a wire rope pressure plate 156 installed on the fixed seat 136 at the rope passing groove 1360 position and pressing the wire rope 134, thereby driving the lifting assembly 106 to move when the wire rope 134 moves.

[0035] like Figure 14 As shown, in this embodiment, the center column assembly 105 includes a center column 115 , a pair of racks 135 mounted on the center column, and a pair of guide rails 155 , wherein the pair of guide rails 155 are located on both sides of the pair of racks 135 .

[0036] like Figure 15 As shown, in this embodiment, the side column assembly 107 includes a side column 117, a rack 137 installed on the side column 117, and a guide rail 157, wherein the guide rail 157 and the rack 137 are symmetrically arranged with the corresponding guide rail 155 and rack 135 on the center column 105.

[0037] For example Figure 13 As shown, in the lifting assembly 106 of this embodiment, the synchronous shaft assembly 116 includes a synchronous shaft 126 rotatably mounted on a fixed seat 136 at both ends, and a gear 146 fixedly mounted on both ends of the synchronous shaft 126 and located outside the fixed seat 136 and meshing with the rack (see the reference numerals 135 and 137 in the figure); wherein, a slider 165 (see the reference numerals 165) adapted to the guide rail is installed on one side of the fixed seat 136 facing the guide rail (see the reference numerals 155 and 157 in the figure). Figure 12 and Figure 14 ) and slider 167 (see Figure 15 ).

[0038] For example Figure 13 As shown, in this embodiment, the lifting assembly 106 further includes an inspection decorative cover 186, which is detachably mounted on the fixing seat 136 at both ends. In addition, the synchronization shaft 126 is rotatably mounted on the fixing seat 136 at both ends via needle bearings 196.

[0039] For example Figure 14 As shown, and reference Figure 10 As shown, in this embodiment, a TV roller assembly 195 including a TV roller 185 is further installed on the central column 115, and the liftable TV 102 is provided with a shell groove (not shown) on its shell that is slidably connected to the TV roller 185. Through the cooperation between the TV roller 185 and the shell groove, the TV roller 185 plays an auxiliary sliding role during the lifting process of the liftable TV 102.

[0040] It should also be noted that the device for ensuring the forward and backward movement of the triangle cabinet 100 will be introduced in another patent application. The design of this part does not belong to the innovative focus of this patent application and will not be introduced in detail in this article.

[0041] Reference below Figures 8 to 15 The following describes the lifting process of the liftable TV 102 of the triangle cabinet 100 for railway vehicles of this embodiment: By driving the motor 114, the wire rope reel 154 drives the wire rope 134 to move, and the wire rope pressing plate 156 and the fixing seats 136 at both ends of the lifting assembly 106 tightly press the wire rope 134. When the wire rope 134 moves, it can drive the lifting assembly 106 to move up and down; Specifically, the sliders installed on the fixed seats 136 at both ends of the lifting assembly 106 will slide simultaneously along the guide rails 157 on the side columns 117 and the guide rails 155 on the center column 115; at the same time, the gears at both ends of the synchronous shaft assembly 116 of the lifting assembly 106 will roll simultaneously along the racks 137 on the side columns 117 and the racks 135 on the center column 115; The setting of the synchronous shaft assembly 116 enables the gears 146 at both ends to engage with the racks on each column, which can ensure that both ends of the lifting assembly 106 are always in a horizontal position, ensuring smoothness and usability, and realizing the lifting function of the liftable TV 102 fastened to the lifting assembly 106.

[0042] The technical content and technical features of the present invention have been disclosed above. However, it is understood that, based on the creative ideas of the present invention, those skilled in the art may make various changes and improvements to the above structure, including combinations of the technical features disclosed or claimed herein, as well as other combinations that clearly include these features. Such variations and / or combinations fall within the technical field involved in the present invention and fall within the scope of protection of the claims of the present invention.

Claims

1. A multifunctional cabinet for business class of railway vehicles, characterized in that include: Side cabinets, which are fixedly installed on the inner side wall of the business class cabin; A triangular cabinet set comprising a pair of triangular cabinets connected together and slidably mounted on a side cabinet, each triangular cabinet comprising a work surface, a support base, a built-in leg cavity, and a liftable television located on the front and rear sides of the triangular cabinet and capable of moving up and down between a stowed position and a raised position, wherein the built-in leg cavity on one side of the liftable television is fully exposed when the liftable television is in the raised position; The horizontal shifting device is installed in the side cabinet and is configured to drive the triangle cabinet group to switch between the forward position and the backward position according to the travel direction of the rail vehicle.

2. The multifunctional cabinet for the business class of a railway vehicle according to claim 1, characterized in that: The side cabinet includes a side cabinet body installed on the inner side wall of the cabin of the business class, and a side cabinet body handrail and a side cabinet bottom frame installed on the top and bottom of the side cabinet body respectively; The pair of triangular cabinets are fixed together via an upper connecting bracket and a lower connecting bracket, wherein the upper connecting bracket is fixedly connected to the work surface of the pair of triangular cabinets at both ends, and the lower connecting bracket is fixedly connected to the support base of the pair of triangular cabinets at both ends.

3. The multifunctional cabinet for the business class of a railway vehicle according to claim 2, characterized in that: Guide rails are installed on the side cabinet main body armrest and the side cabinet bottom frame; and sliders slidably connected to the guide rails are installed on the work surface and the support base of each triangular cabinet.

4. The multifunctional cabinet for the business class of a railway vehicle according to claim 2, characterized in that: The horizontal shifting device includes a driving motor, a wire rope, a wire rope winding wheel, multiple wire rope winding wheels, and a wire rope crimping seat, wherein the wire rope crimping seat is installed on the upper connecting bracket and crimps the wire rope. The driving motor drives the wire rope winding wheel to rotate to drive the wire rope to move clockwise or counterclockwise, thereby driving the upper connecting bracket and then driving the triangle cabinet group to shift horizontally.

5. The multifunctional cabinet for the business class of a railway vehicle according to claim 4, characterized in that: Three limit sensors are installed on the side cabinet body, and a limit sensor plate is installed on the wire rope crimping seat.

6. The multifunctional cabinet for the business class of a railway vehicle according to any one of claims 1 to 5, characterized in that: Each of the triangular cabinets further comprises two side column assemblies, a central column assembly and a lifting drive mechanism corresponding to each liftable TV. Each of the liftable TVs is located between the side column assembly and the central column assembly and is movably mounted on the two.

7. The multifunctional cabinet for the business class of a railway vehicle according to claim 6, characterized in that: The liftable TV is connected to the side column assembly and the center column assembly via a lift assembly so as to be movably connected up and down. The lift drive mechanism is configured to drive the lift assembly to move the liftable TV up and down.

8. The multifunctional cabinet for the business class of a railway vehicle according to claim 7, characterized in that: The lifting drive mechanism includes a drive motor, a steel wire rope, a steel wire rope winding wheel, a steel wire rope transfer bearing and a steel wire rope winding wheel, wherein the drive motor is installed in the support base and drives the steel wire rope winding wheel to rotate, thereby driving the steel wire rope to move clockwise or counterclockwise, and the steel wire rope transfer bearing and the steel wire rope winding wheel are respectively installed at the bottom and the top of the central column assembly; The lifting assembly includes a synchronous shaft assembly and fixed seats located at both ends of the synchronous shaft assembly, wherein the synchronous shaft assembly is meshed with the gear racks of the side column assembly and the center column assembly at both ends, and each fixed seat is slidably connected to the side column assembly and the center column assembly; and wherein, The fixed seat of the lifting assembly connected to the central column assembly is provided with a wire rope groove, and a wire rope pressure plate installed on the fixed seat at the rope groove position and pressing the wire rope, thereby driving the lifting assembly to move when the wire rope moves.

9. The multifunctional cabinet for the business class of a railway vehicle according to claim 8, characterized in that: The central column assembly includes a central column, a pair of racks mounted on the central column, and a pair of guide rails, the pair of guide rails being located on both sides of the pair of racks; the side column assembly includes side columns, guide rails and racks mounted on the side columns, wherein the guide rails and racks are symmetrically arranged with the corresponding guide rails and racks on the central column; in the lifting assembly, the synchronous shaft assembly includes a synchronous shaft rotatably mounted on the fixed seat at both ends, and gears fixedly mounted on both ends of the synchronous shaft, located on the outside of the fixed seat, and meshing with the racks; wherein a slider adapted to the guide rail is provided on the side of the fixed seat facing the guide rail.

10. The multifunctional cabinet for the business class of a railway vehicle according to claim 9, characterized in that: The lifting assembly further includes an inspection decorative cover, which is detachably mounted on the fixing seat at both ends thereof; The synchronization shaft is rotatably mounted on the fixed seat via a needle bearing; The central column is also provided with a TV roller component including a TV roller, and the housing of the liftable TV is provided with a groove which is slidably connected with the TV roller.

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