Tea table structure for berth-chair conversion

Abstract

The utility model relates to a tea table structure for berth-chair conversion, and belongs to the technical field of train appliances. According to the technical scheme, a second berth body and a first berth body can be stacked together or unfolded to form a plane through a four-bar mechanism; the second berth body and the first berth body are stacked and then rotate by 90 degrees along the supporting shaft of the support, the supporting shaft slides on the sliding way of the first berth body at the same time, the tea table is in a horizontal state, and the movable berth becomes a tea table structure. The second berth body and the first berth body are unfolded to form a plane, the side face of the tea table makes contact with the bottom plate to play a supporting role, the movable berth and the fixed berths on the two sides are flush to form a complete berth face, and the berth face and the fixed berths form the sleeping berth structure together. The tea table has the advantages of being simple and reliable in structure, fast, simple and convenient in paving and chair conversion mode and stable in structure.

Description

Technical Field

[0001] This utility model relates to a tea table structure for converting chairs into seats, belonging to the technical field of train equipment. Background Technology

[0002] The tea table used on trains is fixed between two berths or two seats, serving a single purpose. While berths are suitable for long journeys, they are not comfortable for those who want to sit and rest during the day. The applicant's invention of using a tea table to convert berths into seats is a pioneering innovation, as seen in the applicant's patent CN202122945938.9, titled "A Novel Convertible Berth for Trains," which retains the tea table function. However, it has the following problems: after converting the berth into a seat, the tea table needs to be reconnected and secured to the wall, making the operation cumbersome; the tea table surface area is too large, resulting in poor structural stability. Utility Model Content

[0003] The purpose of this utility model is to provide a train sleeper seat conversion device and method, which is easy to operate, does not require repeated connection and fixing, has a tea table with a similar area to the normal tea table on the train, and has a stable structure, thus solving the above-mentioned technical problems existing in the background art.

[0004] The technical solution of this utility model is:

[0005] A tea table structure for converting berths into chairs is installed between two fixed berths within a train compartment. The tea table structure includes a support frame, a berth body one, a berth body two, a tea table, a connecting rod one, a connecting rod two, and a connecting angle iron. The support frame of the tea table structure is fixedly connected to the side wall panel of the train. A support shaft is provided on the support frame. A slide rail is provided on the side of berth body one near the support frame. The support shaft of the support frame is embedded in the slide rail of berth body one. berth body one can rotate around the support shaft and slide along the length of the slide rail. The side of berth body one away from the support frame and the side of berth body two near berth body one are hinged together by connecting rod one and connecting rod two. Connecting rod one and connecting rod two are parallel to each other and together with berth body one and berth body two form a four-bar linkage. The tea table is fixedly connected to the side of berth body two away from berth body one by the connecting angle iron. The support shaft is arranged perpendicular to berth body two. Berth body two and berth body one can be stacked together or unfolded into a single plane through the four-bar linkage.

[0006] Furthermore, after the second and first pavers are stacked, they are rotated 90° along the support axis of the bracket. Simultaneously, the support axis slides along the track of the first pavers, resulting in a horizontal tea table structure. Conversely, the second and first pavers unfold into a single plane, with the sides of the tea table contacting the base plate for support. The tea table structure, together with the fixed pavers on both sides, forms a complete paving surface, constituting a sleeping structure.

[0007] Furthermore, both sides of the second and first pavements are equipped with four-bar linkages.

[0008] Furthermore, the length of the first pavement is greater than the length of the second pavement.

[0009] Furthermore, the support structure comprises a bottom surface, a first elevation, and a second elevation, forming a U-shaped integrated structure. The first and second elevations are parallel to each other and perpendicularly positioned on opposite sides of the bottom surface. The second elevation has mounting holes for fixing to the side wall panel of the train using screws. A raised plate, higher than the first elevation, is located on the bottom surface, with a support shaft on the raised plate. This support shaft matches a slide rail on the side of the berth. The bottom surface and the first elevation together constrain or support the berth. The distance between the first and second elevations is equal to the sum of the thicknesses of the berths. When used as a tea table structure, the right angle between the bottom surface and the first elevation acts as a constraint on the berth. When the tea table structure is converted into a sleeper berth structure, the raised plate on the bottom surface forms a right angle with the first elevation, and the first elevation provides auxiliary support for the berth.

[0010] Furthermore, when the support shaft is located at the outermost end of the slide, the length of the remaining side of the slide at the outer end is less than the distance between facade one and facade two, which facilitates the stacking of slide one and slide two.

[0011] Furthermore, the height of facade one is greater than the height of facade two.

[0012] The advantages of this utility model are: simple and reliable structure, quick and easy chair conversion, no need for repeated connection and fixing, tea table with a similar area to a normal tea table on a train, and stable structure. Attached Figure Description

[0013] Figure 1 This is a front view schematic diagram of the sleeper berth configuration according to an embodiment of this utility model;

[0014] Figure 2 This is a cross-sectional view (AA) of the sleeper berth configuration according to an embodiment of this utility model;

[0015] Figure 3 This is a top view schematic diagram of the sleeper berth configuration according to an embodiment of this utility model;

[0016] Figure 4 This is a front view schematic diagram of the seat status according to an embodiment of this utility model;

[0017] Figure 5 This is a schematic diagram of the seat state BB according to an embodiment of this utility model;

[0018] Figure 6 This is a top view of the seat in the embodiment of this utility model;

[0019] Figure 7 This is a schematic diagram of the unfolded main view of an embodiment of this utility model;

[0020] Figure 8 This is a side view of an embodiment of the present invention.

[0021] Figure 9 This is a top view of an embodiment of the present invention;

[0022] Figure 10 This is a front view schematic diagram of the stacking process according to an embodiment of this utility model;

[0023] Figure 11 This is a side view of the stacking process according to an embodiment of the present invention;

[0024] Figure 12 This is a top view schematic diagram of the stacking process according to an embodiment of the present invention;

[0025] Figure 13 This is a front view schematic diagram of the stacked embodiments of this utility model;

[0026] Figure 14 This is a side view of a stacked embodiment of the present invention;

[0027] Figure 15 This is a top view of a stacked embodiment of the present invention;

[0028] Figure 16 This is a front view schematic diagram of the bracket according to an embodiment of this utility model;

[0029] Figure 17 This is a side view of the bracket according to an embodiment of the present invention;

[0030] Figure 18 This is a top view schematic diagram of the bracket according to an embodiment of this utility model;

[0031] Figure 19 This is a three-dimensional schematic diagram of the bracket according to an embodiment of the present utility model;

[0032] Figure 20 This is a three-dimensional schematic diagram of the pavement according to an embodiment of this utility model;

[0033] In the diagram: 1. Backrest; 2. Fixed base; 3. Tea table structure; 3-1. Support frame; 3-2. Base 1; 3-3. Base 2; 3-4. Tea table; 3-5. Connecting rod 1; 3-6. Connecting angle iron; 3-7. Rotating shaft; 4. Partition wall panel; 5. Floor; 6. Side wall panel; 7. Slide track; 8. Support shaft; 9. Connecting rod 2; 11. Bottom surface; 12. Elevation 1; 13. Elevation 2; 14. Protruding plate; 15. Mounting hole. Detailed Implementation

[0034] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0035] See attached document Figure 1-20A tea table structure for converting berths into seats is installed between two fixed berths 2 inside the train compartment. The tea table structure includes a support frame 3-1, a first berth 3-2, a second berth 3-3, a tea table 3-4, a first connecting rod 3-5, a second connecting rod 9, and a connecting angle iron 3-6. The support frame 3-1 of the tea table structure is fixedly connected to the side wall panel 6 of the train. A support shaft 8 is provided on the support frame 3-1. A slide rail 7 is provided on the side of the first berth 3-2 near the support frame 3-1. The support shaft 8 of the support frame 3-1 is embedded in the slide rail 7 of the first berth 3-2. The first berth 3-2 can rotate around the support shaft 8 and can slide along the slide rail 8. The slides along its length; the end of the side of the first piece 3-2 away from the support 3-1 and the end of the side of the second piece 3-3 near the first piece 3-2 are hinged together by connecting rod 1 3-5 and connecting rod 2 9. Connecting rod 1 3-5 and connecting rod 2 9 are parallel to each other and together with the first piece 3-2 and the second piece 3-3 form a four-bar linkage; the tea table 3-4 is fixedly connected to the end of the second piece 3-3 away from the first piece 3-2 by connecting angle iron 3-6, and the support shaft 8 is arranged perpendicular to the second piece 3-3; the second piece 3-3 and the first piece 3-2 can be stacked together or unfolded into a plane through the four-bar linkage.

[0036] Preferably, both sides of the second pavement 3-3 and the first pavement 3-2 are provided with a four-bar linkage.

[0037] See attached document Figure 3 and 11 The length of pavement 1 3-2 is greater than the length of pavement 2 3-3.

[0038] See attached document Figure 16-19 The bracket 3-1 is a U-shaped integrated structure consisting of a bottom surface 11, a first elevation 12, and a second elevation 13. The first elevation 12 and the second elevation 13 are parallel to each other and are located perpendicularly on both sides of the bottom surface 11. The second elevation 13 has mounting holes 15 and is fixedly connected to the side wall panel 6 of the train by screws. A raised plate 14, higher than the bottom surface 11, is located near the first elevation 12 on the bottom surface 11. A support shaft 8 is provided on the raised plate 14, which matches the slide rail 7 on the side of the first 3-2. The bottom surface 11 and the first elevation 12 together constrain or support the first 3-2. The distance between the first elevation 12 and the second elevation 13 is equal to the sum of the thicknesses of the first 3-2 and the second 3-3. When used as a tea table structure, the right angle between the bottom surface 11 and the first elevation 12 fastens onto the first 3-2, providing a constraining effect. When the tea table structure 3 is transformed into a berth structure, the protruding plate 14 on the bottom surface 11 forms a right angle with the vertical surface 12, and the vertical surface 12 provides auxiliary support for the berth body 3-2.

[0039] See attached document Figure 11 When the support shaft 8 is located at the outermost end of the slide 7, the side length of the remaining pavement 3-2 at the outer end of the slide 7 is less than the distance between facade 12 and facade 13, which facilitates the stacking of pavement 3-2 and pavement 3-3.

[0040] See attached document Figure 17 The height of facade 12 is greater than the height of facade 13.

[0041] In this embodiment, the backrest 1 is fixedly connected to the partition wall panel 4 of the train, the fixed berth 2 is located below the backrest 1, and the fixed berth 2 is fixedly connected to the partition wall panel 4 and the floor 5 of the train. The backrest 1 and the fixed berth 2 constitute a set of seats. The tea table structure 3 is located between the two sets of seats arranged opposite each other. The tea table structure 3 realizes two structures through the four-bar mechanism, the slide 7 and the bracket 3-1: the second berth 3-3 and the first berth 3-2 are stacked together or unfolded into a plane.

[0042] See attached document Figure 10-15 After the second layer 3-3 and the first layer 3-2 are stacked, they rotate 90° along the support shaft 8 of the bracket 3-1. At the same time, the support shaft 8 slides on the slide 7 of the first layer 3-2, and the tea table 3-4 is in a horizontal state, thus forming a tea table structure.

[0043] Lift the first berth 3-2 upwards. At this time, the second berth 3-3, tea table 3-4, connecting rod 1 3-5, connecting rod 2 9, and connecting angle iron 3-6 are lifted together with the first berth 3-2 until they can be lifted no further. Rotate outwards around the support shaft 8 of the bracket 3-1 until it is horizontal. Pull the second berth 3-3 horizontally. The second berth 3-3 drives the tea table 3-4 to rotate through the connecting rod 1 3-5 and connecting rod 2 9 until the upper surfaces of the first berth 3-2 and the second berth 3-3 are on the same plane. At this time, the side of the tea table 3-4 contacts the floor 5 and provides support. At this time, the tea table structure 3 and the fixed berth 2 are combined to form a berth structure.

Claims

1. A tea table structure for converting chairs into tables, characterized in that: The tea table structure, located between two fixed bunks (2) inside the train compartment, includes a support (3-1), a bunk body one (3-2), a bunk body two (3-3), a tea table (3-4), a connecting rod one (3-5), a connecting rod two (9), and a connecting angle iron (3-6). The support (3-1) of the tea table structure is fixedly connected to the side wall panel (6) of the train. The support (3-1) is provided with a support shaft (8). The side of the bunk body one (3-2) near the support (3-1) is provided with a slide rail (7). The support shaft (8) of the support (3-1) is embedded in the slide rail (7) of the bunk body one (3-2). The bunk body one (3-2) can rotate around the support shaft (8) and can move along the length of the slide rail (7). Sliding; the end of the side of the first pavement (3-2) away from the support (3-1) and the end of the side of the second pavement (3-3) near the first pavement (3-2) are hinged together by connecting rod 1 (3-5) and connecting rod 2 (9). Connecting rod 1 (3-5) and connecting rod 2 (9) are parallel to each other and together with the first pavement (3-2) and the second pavement (3-3) form a four-bar linkage; the tea table (3-4) is fixedly connected to the end of the second pavement (3-3) away from the first pavement (3-2) by connecting angle iron (3-6), and the support shaft (8) is arranged perpendicular to the second pavement (3-3); the second pavement (3-3) and the first pavement (3-2) can be stacked together or unfolded into a plane by the four-bar linkage.

2. The tea table structure for converting chairs according to claim 1, characterized in that: Both sides of the second pavement (3-3) and the first pavement (3-2) are equipped with four-bar linkages.

3. A tea table structure for converting chairs according to claim 1 or 2, characterized in that: The bracket (3-1) is a U-shaped integrated structure consisting of a bottom surface (11), a first elevation (12) and a second elevation (13). The first elevation (12) and the second elevation (13) are parallel to each other and are located vertically on both sides of the bottom surface (11). The second elevation (13) is provided with mounting holes (15) and is fixedly connected to the side wall panel (6) of the train by screws. The bottom surface (11) is provided with a raised plate (14) higher than the bottom surface (11) near the first elevation (12). The raised plate (14) is provided with a support shaft (8). The support shaft (8) matches the slide rail (7) on the side of the first paving body (3-2). The bottom surface (11) and the first elevation (12) together constrain or support the first paving body (3-2). The distance between the first elevation (12) and the second elevation (13) is equal to the sum of the thicknesses of the first paving body (3-2) and the second paving body (3-3).

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