Seat and rail vehicle

Abstract

The utility model relates to the technical field of seats, and provides a seat and a railway vehicle, the seat is installed on a bearing body, the target side face of the bearing body is provided with an installation groove, the seat comprises an installation base fixed in the installation groove, a cushion body rotationally connected with the installation base and a backrest body rotationally connected with the cushion body, the rotating axis of the backrest body relative to the cushion body is parallel to the rotating axis of the cushion body relative to the mounting seat; the backrest body can rotate between a folding position and an unfolding position, the backrest body and the cushion body are overlapped at the folding position, and an angle is formed between the backrest body and the cushion body at the unfolding position; the cushion body can rotate between a storage position and a working position, at the working position, the bearing face of the cushion body and the target side face are arranged in an angle mode, at least part of the cushion body is located in the installation groove, and the backrest body is located between the cushion body and the installation base at the storage position. In this way, the size of the seat in the folded storage state is reduced, and the space occupied by the seat in the cab is reduced.

Description

Technical Field

[0001] This utility model relates to the field of seating technology, and provides a seat and a rail vehicle. Background Technology

[0002] In the design of a rail vehicle driver's cab, space utilization is crucial. To ensure a safe and comfortable working environment while also meeting emergency needs, two backrested seats are typically installed. One seat is used for daily driving operations, and the other is used in special circumstances or when an instructor, inspector, or other personnel enter the cab. Due to the limited space in the driver's cab, the seats are generally designed to be foldable and stowable. The seat is unfolded when needed and folded away after use.

[0003] Currently, folding seats typically have the seat back fixed to the wall, with the seat cushion rotatably connected to the seat back. When not in use, the seat cushion is rotated towards the seat back, thus folding the seat for storage. However, the folding depth is limited, and the seat remains relatively large when folded. Even when folded, the seat back and cushion are still located on the side of the wall, occupying a significant amount of space in the driver's cab.

[0004] Therefore, how to solve the problem that the seats still occupy a large amount of space in the driver's cab when they are folded up has become an important technical problem for those skilled in the art to solve. Utility Model Content

[0005] This utility model provides a seat and a rail vehicle to solve the defect in the related technology that the seat still occupies a large space in the driver's cab when it is folded up. It increases the degree of folding of the seat, reduces the volume of the seat when folded up, and makes the seat automatically fold into the wall of the driver's cab when folded up, so as to avoid occupying the space of the driver's cab.

[0006] This utility model provides a seat suitable for installation on a carrier. The carrier has a mounting groove on its target side. The seat includes a mounting seat fixed in the mounting groove, a seat cushion rotatably connected to the mounting seat, and a backrest rotatably connected to the seat cushion. The rotation axis of the backrest relative to the seat cushion is parallel to the rotation axis of the seat cushion relative to the mounting seat.

[0007] The backrest is adapted to rotate between a folded position and an unfolded position. In the folded position, the backrest overlaps with the seat cushion. In the unfolded position, the backrest and the seat cushion are angled together.

[0008] The seat cushion is adapted to rotate between a storage position and a working position. In the working position, the bearing surface of the seat cushion is angled to the target side. In the storage position, the seat cushion is at least partially located within the mounting groove, and the backrest is located between the seat cushion and the mounting base.

[0009] According to the present invention, a seat cushion body is located in the storage position, the seat cushion body is completely located in the mounting groove, and the opposite surface of the bearing surface of the seat cushion body is flush with the target side surface.

[0010] The seat cushion is in the working position, and the backrest is in the unfolded position. The backrest is completely located in the mounting groove, and the side surface of the backrest near the seat cushion is flush with the target side.

[0011] According to the present invention, a seat is provided with a limiting guide structure between the seat cushion and the mounting seat. The limiting guide structure is adapted to guide the rotation of the seat cushion relative to the mounting seat and limit the extreme rotation angle of the seat cushion.

[0012] According to the present invention, a seat further includes a middle support, the first end of the middle support is fixedly connected to the first end of the seat cushion body, the first end of the middle support is rotatably connected to the mounting base, and the limiting guide structure is disposed between the middle support and the mounting base.

[0013] The second end of the intermediate support extends to the bearing surface side of the seat cushion, the first end of the backrest is rotatably connected to the second end of the intermediate support, and both the second end of the seat cushion and the second end of the backrest are free ends.

[0014] According to the present invention, a seat is provided, wherein the limiting guide structure includes a groove and a slider, one of the groove and the slider is disposed on the mounting base, and the other is disposed on the intermediate support;

[0015] The slide groove is arc-shaped, and the center of the arc is located on the rotation axis of the seat body relative to the mounting base. The slider is embedded in the slide groove and is adapted to slide back and forth along the slide groove.

[0016] According to the present invention, a seat further includes a limiting component, which is disposed between the mounting base and the seat cushion body. The limiting component is adapted to restrict the seat cushion body from rotating relative to the mounting base when the seat cushion body is in the storage position.

[0017] According to the present invention, a seat further includes a support base and a support block. The support base is adapted to be fixed to the carrier or the mounting base, and the support block is fixed to the side of the backrest away from the seat cushion. The support block and the support base have magnetic attraction.

[0018] The seat cushion is in the working position, and the backrest is in the unfolded position. The support block is magnetically fixed to the support seat.

[0019] According to the present invention, a seat is provided with a damping mechanism between the seat cushion and the mounting base, the damping mechanism being adapted to increase the rotational damping of the seat cushion relative to the mounting base.

[0020] According to the present invention, a seat is provided with a first friction ring between the first end of the intermediate support and the mounting seat, and a second friction ring between the second end of the intermediate support and the mounting seat.

[0021] This utility model also provides a rail vehicle, including the aforementioned seat.

[0022] The seat provided by this utility model is used for installation on a carrier. For the driver's cab of a rail vehicle, the cabinet or wall of the driver's cab can serve as the carrier, and the seat can be installed on the cabinet or wall of the driver's cab. The surface of the carrier facing the working space of the seat is the target side of the carrier, and a mounting groove is provided on the target side of the carrier. The seat includes a mounting base, a seat cushion, and a backrest. The mounting base is fixed in the mounting groove, the seat cushion is rotatably connected to the mounting base, and the backrest is rotatably connected to the seat cushion. The rotation axis of the backrest relative to the seat cushion is parallel to the rotation axis of the seat cushion relative to the mounting base. The backrest can rotate relative to the seat cushion between a folded position and an unfolded position. When the backrest is rotated to the folded position, the backrest and the seat cushion overlap, and the facing surfaces of the backrest and the seat cushion are in contact. When the backrest is rotated to the unfolded position, the backrest and the seat cushion are angled, and the backrest can be used for support. The seat cushion can rotate between a storage position and a working position. When the seat cushion is rotated to the working position, the bearing surface of the seat cushion is angled to the target side, allowing for seating. When the seat cushion is rotated to the storage position, at least part of the seat cushion is located within the mounting slot, and the backrest is located between the seat cushion and the mounting seat. With this configuration, when the seat needs to be folded for storage, the backrest first rotates towards the seat cushion, and then both the seat cushion and backrest rotate towards the mounting seat, completing the folding and storage of the seat. This increases the degree of folding of the seat itself, reduces the volume of the seat in the folded state, and reduces space occupation. Furthermore, mounting slots are provided on the cabinet or wall of the driver's cab, and the seat in the folded state is at least partially located within these slots, maximizing the use of the internal space of the carrier and further reducing the external space occupied by the folded seat, thus reducing the space occupied in the driver's cab and solving the problem in related technologies where the seat still occupies a large amount of space in the driver's cab when folded.

[0023] Furthermore, the rail vehicle provided by this utility model has the same advantages as described above because it has the seat as described above. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0025] Figure 1 This is a structural diagram showing the seat provided by this utility model when it is installed on a carrier, with the seat cushion in the working position and the backrest in the unfolded position.

[0026] Figure 2 This is a structural diagram showing the seat provided by this utility model when it is installed on a carrier, with the backrest in a folded position and the seat cushion in a stowed position.

[0027] Figure 3 This is a schematic diagram showing the relative positions of the seat cushion, the target side, and the support seat when the seat cushion is in the working position and the backrest is in the unfolded position (the mounting seat is not shown in the figure).

[0028] Figure 4 This is a schematic diagram showing the relative positions of the seat cushion, the target side, and the support seat when the backrest of the chair provided by this utility model is in the folded position and the seat cushion is in the storage position (the mounting seat is not shown in the figure).

[0029] Figure 5 This is a structural schematic diagram of the seat provided by this utility model.

[0030] Figure 6 This is an exploded view of the seat provided by this utility model.

[0031] Figure 7 This is a schematic diagram of the connection structure between the intermediate support, backrest, and seat cushion provided by this utility model.

[0032] Figure 8 This is a schematic diagram of the connection structure between the first connecting shaft and the seat cushion provided by this utility model.

[0033] Figure label:

[0034] 1. Carrier; 2. Target side; 3. Mounting base; 4. Seat cushion; 5. Backrest; 6. Limiting guide structure; 7. Intermediate bracket; 8. Slide groove; 9. Slider; 10. Support base; 11. Support block; 12. Damping mechanism; 13. First friction ring; 14. Second friction ring; 15. First connecting shaft; 16. Second connecting shaft; 17. Limiting groove; 18. Spring ball. Detailed Implementation

[0035] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0036] The following is combined with Figures 1 to 8 This invention describes the seat of this utility model.

[0037] like Figures 1 to 8As shown in the embodiment of this utility model, the seat is used for installation on the carrier 1. For the driver's cab of a rail vehicle, the cabinet or wall of the driver's cab can be used as the carrier 1, and the seat can be installed on the cabinet or wall of the driver's cab. The surface of the carrier 1 facing the working space of the seat is the target side 2 of the carrier 1, and a mounting groove is provided on the target side 2 of the carrier 1.

[0038] The seat includes a mounting base 3, a seat cushion 4, and a backrest 5.

[0039] Specifically, the mounting base 3 is fixed in the mounting groove, the seat cushion 4 is rotatably connected to the mounting base 3, the backrest 5 is rotatably connected to the seat cushion 4, and the rotation axis of the backrest 5 relative to the seat cushion 4 is parallel to the rotation axis of the seat cushion 4 relative to the mounting base 3.

[0040] The backrest 5 can rotate relative to the seat cushion 4 between a folded position and an unfolded position. When the backrest 5 is rotated to the folded position, the backrest 5 and the seat cushion 4 overlap, and the opposing surfaces of the backrest 5 and the seat cushion 4 are in contact. When the backrest 5 is rotated to the unfolded position, the backrest 5 and the seat cushion 4 are angled together, and the backrest 5 can be used for support.

[0041] The seat cushion 4 can rotate between a storage position and a working position. When the seat cushion 4 is rotated to the working position, the bearing surface of the seat cushion 4 is angled to the target side 2, and the seat cushion 4 is available for sitting. When the seat cushion 4 is rotated to the storage position, the seat cushion 4 is at least partially located in the mounting groove, and the backrest 5 is located between the seat cushion 4 and the mounting base 3.

[0042] With this design, when the seat needs to be folded and stored, the backrest 5 first rotates towards the seat cushion 4, and then the seat cushion 4 and backrest 5 rotate together towards the mounting base 3, completing the folding and storage of the seat. This increases the degree of folding of the seat itself, reduces the volume of the seat in the folded and stored state, and reduces the space occupied. Moreover, mounting slots are provided on the load-bearing body 1 such as the cabinet or wall in the driver's cab, and the folded and stored seat is at least partially located in the mounting slots, making full use of the internal space of the load-bearing body 1, further reducing the space occupied by the folded and stored seat on the external space of the load-bearing body 1, reducing the space occupied in the driver's cab, and solving the problem in related technologies where the seat still occupies a large space in the driver's cab when folded.

[0043] In a further embodiment, the depth of the mounting groove is adapted to the thickness of the seat in the folded state, so that when the seat cushion 4 is rotated to the storage position, the seat cushion 4 is completely located in the mounting groove, and the opposite side of the bearing surface of the seat cushion 4 is flush with the target side 2.

[0044] The depth of the mounting groove is the dimension of the mounting groove along the direction perpendicular to the target side 2 of the carrier 1. The thickness of the seat in the folded state is the dimension of the seat in the folded and stored state along the direction perpendicular to the target side 2 of the carrier 1.

[0045] This design makes full use of the internal space of the carrier 1 and minimizes the space occupied by the driver's cab; moreover, the seats are aesthetically pleasing when folded and stored, without affecting the appearance of the driver's cab.

[0046] Meanwhile, the connection positions between the backrest 5 and the seat cushion 4, as well as the connection position between the seat cushion 4 and the mounting base 3, are optimized. This ensures that when the seat cushion 4 rotates to the working position and the backrest 5 rotates to the unfolded position, the backrest 5 is completely within the mounting groove, and the surface of the backrest 5 closest to the seat cushion 4 is flush with the target side 2. This design allows the backrest 5 to provide ample support while avoiding steps, sharp edges, or other structural features on the support body 1, thus ensuring both aesthetics and safety.

[0047] In this embodiment, a pair of mounting seats 3 are provided, and the pair of mounting seats 3 are distributed laterally along the seat cushion body 4. When the user sits on the seat cushion body 4 and faces the front of the driver's cab, the user's left and right directions are the lateral directions of the seat cushion body 4, referring to... Figure 1 and Figure 2 The direction indicated by 'x' in the diagram is such that the lateral direction of the seat cushion 4 is parallel to the target side 2. The user's forward / backward direction is the longitudinal direction of the seat cushion 4, as shown in the reference diagram. Figure 1 and Figure 2 The direction indicated by y is perpendicular to the longitudinal direction of the seat cushion 4 and the target side 2. Simultaneously, the direction perpendicular to both the transverse and longitudinal directions of the seat cushion 4 is considered the vertical direction. Figure 1 and Figure 2 The direction indicated by z. Each mounting base 3 is fixedly connected to the carrier 1 and also connected to the seat cushion 4. Both sides of the seat cushion 4 are connected to the carrier 1 via mounting bases 3, and the symmetrical connection structure helps to improve the stability of the seat.

[0048] The pair of mounting bases 3 have identical structures and are arranged symmetrically. The connection structures between the pair of mounting bases 3 and the carrier 1, as well as the connection structures between the pair of mounting bases 3 and the seat cushion 4, are identical and arranged symmetrically. In the following embodiments, the connection between one of the mounting bases 3 and the seat cushion 4 will be described as an example.

[0049] In this embodiment of the utility model, a limiting guide structure 6 is provided between the seat cushion 4 and the mounting base 3. The limiting guide structure 6 is used to guide the rotation of the seat cushion 4 relative to the mounting base 3, so that the seat cushion 4 can rotate smoothly and steadily relative to the mounting base 3, avoiding jamming problems.

[0050] The limiting guide structure 6 can also limit the extreme rotation angle of the seat cushion 4. When the seat cushion 4 rotates to the working position, the limiting guide structure 6 can prevent the seat cushion 4 from moving further away from the mounting base 3, so that the seat cushion 4 is stable in position when bearing load, thus providing stable support. When the seat cushion 4 rotates to the storage position, the limiting guide structure 6 can prevent the seat cushion 4 from moving further closer to the mounting base 3, so that the seat cushion 4 is stable in a position where the opposite side of its bearing surface is flush with the target side 2 of the bearing body 1.

[0051] In this embodiment, the seat also includes a middle support 7, the first end of the middle support 7 is fixedly connected to the first end of the seat cushion 4, the first end of the middle support 7 is rotatably connected to the mounting base 3, and the limiting guide structure 6 is disposed between the middle support 7 and the mounting base 3.

[0052] The second end of the intermediate support 7 extends to the bearing surface side of the seat cushion 4, and the first end of the backrest 5 is rotatably connected to the second end of the intermediate support 7. Both the second end of the seat cushion 4 and the second end of the backrest 5 are free ends.

[0053] To improve the connection strength between the intermediate support 7 and the seat cushion 4, the intermediate support 7 can be set in an L-shape. The intermediate support 7 includes a first support and a second support. The extension direction of the first support is perpendicular to the extension direction of the second support, and one end of the first support is fixedly connected to one end of the second support.

[0054] The first bracket contacts the side of the seat cushion 4, and the extension direction of the first bracket is parallel to the longitudinal direction of the seat cushion 4. The first bracket and the seat cushion 4 are fixedly connected together using multiple bolts. A first connecting shaft 15 is fixedly installed on the mounting base 3. The first connecting shaft 15 passes through the intermediate bracket 7 and is clearance-fitted with the intermediate bracket 7 and the seat cushion 4, so that the intermediate bracket 7 and the seat cushion 4 can rotate relative to the first connecting shaft 15.

[0055] The second bracket extends towards the bearing side of the seat cushion 4, and a second connecting shaft 16 can be provided on the side of the seat cushion 4. The second connecting shaft 16 is fixed relative to the seat cushion 4. The second connecting shaft 16 passes through the intermediate bracket 7 and is clearance-fitted with the intermediate bracket 7 so that the seat cushion 4 can rotate relative to the intermediate bracket 7.

[0056] Specifically, the aforementioned limiting and guiding structure 6 includes a slide groove 8 and a slider 9, one of which is disposed on the mounting base 3, and the other is disposed on the intermediate support 7. The slider 9 is embedded in the slide groove 8, and the slider 9 is adapted to slide back and forth along the slide groove 8.

[0057] In a specific embodiment, a sliding groove 8 is disposed on the mounting base 3, and a slider 9 is disposed on the intermediate support 7. The sliding groove 8 is arc-shaped, with the center of the arc located on the rotation axis of the seat cushion 4 relative to the mounting base 3. When the seat cushion 4 rotates relative to the mounting base 3, the intermediate support 7 and the slider 9 disposed on the intermediate support 7 rotate synchronously with the seat cushion 4. The sliding trajectory of the slider 9 relative to the mounting base 3 is arc-shaped, and the center of this arc is also located on the rotation axis of the seat cushion 4 and the intermediate support 7 relative to the mounting base 3. It is sufficient to ensure that the radius of the sliding groove 8 is equal to the distance of the slider 9 from the first connecting shaft 15.

[0058] Furthermore, the radius of the groove 8 can be made equal to the distance between the first connecting shaft 15 and the second connecting shaft 16. In this case, the slider 9 can be fixedly connected to the end of the second connecting shaft 16. Alternatively, the end of the second connecting shaft 16 can extend into the groove 8, replacing the slider 9.

[0059] In this embodiment, a damping mechanism 12 is provided between the seat cushion 4 and the mounting base 3. The damping mechanism 12 is used to increase the rotational damping of the seat cushion 4 relative to the mounting base 3. This allows the seat cushion 4 to be buffered and vibration-damped when rotating between the working position and the storage position, reducing impact, extending the service life of the seat, and improving the operating feel.

[0060] Specifically, the aforementioned damping mechanism 12 can be disposed between the first connecting shaft 15 and the seat cushion 4, as shown in the figure. Figure 8 .

[0061] In this embodiment, a first friction ring 13 is provided between the first end of the intermediate bracket 7 and the mounting base 3, such as... Figure 6 and Figure 7 As shown, the first friction ring 13 is disposed between the first bracket and the mounting base 3, and the first friction ring 13 is sleeved on the outside of the first connecting shaft 15.

[0062] A second friction ring 14 is provided between the second end of the intermediate bracket 7 and the mounting base 3, such as Figure 6 and Figure 7 As shown, the second friction ring 14 is disposed between the second bracket and the mounting base 3, and the second friction ring 14 is sleeved on the outside of the first connecting shaft 15.

[0063] The first friction ring 13 and the second friction ring 14 can be made of organic materials, but are not limited to organic materials. The first friction ring 13 and the second friction ring 14 can reduce the wear on the intermediate support 7 and the mounting base 3, and extend the service life of the intermediate support 7 and the mounting base 3. As wear parts, the first friction ring 13 and the second friction ring 14 are easy to replace and have low cost.

[0064] In this embodiment of the utility model, the seat also includes a limiting component, which is disposed between the mounting base 3 and the seat cushion 4. The limiting component is used to restrict the seat cushion 4 from rotating relative to the mounting base 3 when the seat cushion 4 is in the storage position, so that the seat cushion 4 is stable in the storage position and avoids the seat cushion 4 from accidentally switching to the working position due to vibration or other unexpected factors.

[0065] Specifically, a limiting component is disposed between the intermediate support 7 and the mounting base 3. The limiting component includes a limiting groove 17 and a spring-loaded ball 18. The limiting groove 17 is disposed on the side of the intermediate support 7 facing the mounting base 3, and the spring-loaded ball 18 is disposed on the side of the mounting base 3 facing the intermediate support 7. When the seat cushion 4 is rotated to the storage position, the spring-loaded ball 18 is aligned with the limiting groove 17, and the ball of the spring-loaded ball 18 can be embedded in the limiting groove 17. The interaction between the ball and the side wall of the limiting groove 17 can limit the rotation of the intermediate support 7 and the seat cushion 4 relative to the mounting base 3.

[0066] The spring ball 18 and the mounting base 3 can be connected by a threaded structure. Specifically, a threaded hole can be provided on the mounting base 3, and an external thread that matches the threaded hole can be provided on the outside of the spring ball 18, so that the spring ball 18 and the mounting base 3 are threadedly connected.

[0067] In a further embodiment, the seat also includes a support base 10 and a support block 11, with the support block 11 and the support base 10 having a magnetic attraction.

[0068] The support base 10 is fixed to the carrier 1 or the mounting base 3, and the support block 11 is fixed to the side of the backrest 5 away from the seat cushion 4. With the seat cushion 4 in the working position and the backrest 5 in the unfolded position, the support block 11 is magnetically fixed to the support base 10. The support base 10 and the support block 11 abut against each other, restricting the backrest 5 from rotating in the direction away from the seat cushion 4, thus stabilizing the backrest 5 in the unfolded position. Furthermore, the magnetic attraction between the support base 10 and the support block 11 prevents the backrest 5 from rotating in the direction closer to the seat cushion 4 due to vibration or other unexpected factors, thus stabilizing the backrest 5 in the unfolded position.

[0069] The height of the support base 10 on the carrier 1 or the mounting base 3 needs to be determined based on the position of the backrest 5 when the cushion body 4 is in the storage position, and the position of the backrest 5 when the cushion body 4 is in the working position and the backrest 5 is in the unfolded position.

[0070] Specifically, the position of the support base 10 should ensure that when the seat cushion 4 is in the retracted position, the vertical distance between the support base 10 and the second connecting shaft 16 is greater than the vertical distance between the second end of the backrest 5 and the second connecting shaft 16, to avoid interference between the support base 10 and the backrest 5 and ensure that the seat cushion 4 can be completely retracted into the mounting slot. Simultaneously, the position of the support base 10 should also ensure that when the seat cushion 4 is in the working position and the backrest 5 is in the unfolded position, the vertical distance between the support base 10 and the second connecting shaft 16 is less than the vertical distance between the second end of the backrest 5 and the second connecting shaft 16, so that the support block 11 can abut against the support base 10. The aforementioned vertical distances are distances along the vertical direction.

[0071] The aforementioned support block 11 can be configured as a permanent magnet, and the aforementioned support base 10 can be configured as a metal material that can be attracted by the permanent magnet.

[0072] On the other hand, this embodiment of the invention also provides a rail vehicle including the seat provided in any of the above embodiments. The seat provided in any of the above embodiments can reduce the space occupied in the driver's cab; therefore, the driver's cab of the rail vehicle in this embodiment has a spacious operating environment, improving the driver's operational convenience and comfort. The derivation process of the beneficial effects of the rail vehicle in this embodiment is largely similar to the derivation process of the beneficial effects of the aforementioned seat, and therefore will not be repeated here.

[0073] The rail vehicle provided in this embodiment of the utility model can be a high-speed train, a bullet train, an urban rail train, etc.

[0074] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A type of seat, characterized in that, Suitable for installation on a carrier (1), the target side (2) of the carrier (1) is provided with an installation groove, the seat includes a mounting seat (3) fixed in the installation groove, a cushion body (4) rotatably connected to the mounting seat (3) and a backrest body (5) rotatably connected to the cushion body (4), the rotation axis of the backrest body (5) relative to the cushion body (4) is parallel to the rotation axis of the cushion body (4) relative to the mounting seat (3); The backrest (5) is adapted to rotate between a folded position and an unfolded position. In the folded position, the backrest (5) overlaps with the seat cushion (4). In the unfolded position, the backrest (5) and the seat cushion (4) are arranged at an angle. The seat cushion (4) is adapted to rotate between a storage position and a working position. In the working position, the bearing surface of the seat cushion (4) is set at an angle to the target side (2). In the storage position, the seat cushion (4) is at least partially located in the mounting groove. The backrest (5) is located between the seat cushion (4) and the mounting base (3).

2. The seat according to claim 1, characterized in that, The cushion body (4) is in the storage position, the cushion body (4) is completely located in the mounting groove, and the opposite side of the bearing surface of the cushion body (4) is flush with the target side side (2); The seat cushion (4) is in the working position, and the backrest (5) is in the unfolded position. The backrest (5) is completely located in the mounting groove, and the side surface of the backrest (5) near the seat cushion (4) is flush with the target side (2).

3. The seat according to claim 1 or 2, characterized in that, A limiting guide structure (6) is provided between the seat cushion (4) and the mounting base (3). The limiting guide structure (6) is adapted to guide the rotation of the seat cushion (4) relative to the mounting base (3) and limit the extreme rotation angle of the seat cushion (4).

4. The seat according to claim 3, characterized in that, It also includes an intermediate support (7), the first end of which is fixedly connected to the first end of the cushion body (4), the first end of which is rotatably connected to the mounting base (3), and the limiting guide structure (6) is disposed between the intermediate support (7) and the mounting base (3). The second end of the intermediate support (7) extends to the bearing surface side of the seat cushion (4), the first end of the backrest (5) is rotatably connected to the second end of the intermediate support (7), and the second end of the seat cushion (4) and the second end of the backrest (5) are both free ends.

5. The seat according to claim 4, characterized in that, The limiting guide structure (6) includes a slide groove (8) and a slider (9), one of which is disposed on the mounting base (3) and the other is disposed on the intermediate support (7). The groove (8) is arc-shaped, and the center of the arc is located on the rotation axis of the seat body (4) relative to the mounting base (3). The slider (9) is embedded in the groove (8) and is adapted to slide back and forth along the groove (8).

6. The seat according to claim 1 or 2, characterized in that, It also includes a limiting component disposed between the mounting base (3) and the seat cushion (4), the limiting component being adapted to restrict the seat cushion (4) from rotating relative to the mounting base (3) when the seat cushion (4) is in the storage position.

7. The seat according to claim 1 or 2, characterized in that, It also includes a support base (10) and a support block (11), the support base (10) being adapted to be fixed to the carrier (1) or the mounting base (3), the support block (11) being fixed to the side of the backrest (5) away from the seat cushion (4), and the support block (11) having magnetic attraction with the support base (10); The seat cushion (4) is in the working position, and the backrest (5) is in the unfolded position. The support block (11) is magnetically fixed to the support seat (10).

8. The seat according to claim 1 or 2, characterized in that, A damping mechanism (12) is provided between the seat cushion (4) and the mounting base (3), and the damping mechanism (12) is adapted to increase the rotational damping of the seat cushion (4) relative to the mounting base (3).

9. The seat according to claim 4, characterized in that, A first friction ring (13) is provided between the first end of the intermediate bracket (7) and the mounting base (3), and a second friction ring (14) is provided between the second end of the intermediate bracket (7) and the mounting base (3).

10. A rail vehicle, characterized in that, Includes the seat as described in any one of claims 1 to 9.

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