Railway vehicle seat device and railway vehicle

Abstract

The application relates to the technical field of rail vehicles, and provides a seat device for a rail vehicle and the rail vehicle. The seat device comprises a rail and at least one group of seat modules. Any group of seat modules comprises a seat body, a sliding assembly and a locking assembly. The sliding assembly comprises a sliding seat and a clamping protrusion. The sliding seat is slidingly connected to the inside of a sliding cavity and is fixed to the seat body. The sliding seat is transversely provided with the clamping protrusion. The clamping protrusion can be clamped with a clamping recess. The locking assembly is installed on the seat body. The locking assembly can act and drive the clamping protrusion and the clamping recess to be locked together or separated and released, so as to realize the locking and fixing or unlocking sliding of the sliding seat along the rail. The seat is arranged as a modular unit. The sliding on the rail is realized through the sliding assembly. The locking and fixing or unlocking sliding on the rail is realized through the locking assembly. When passenger and freight conversion is needed, the seat can be folded to one side of the carriage, the carriage space is released, and the utilization rate of the carriage space is improved.

Description

Technical Field

[0001] This application relates to the field of rail vehicle technology, specifically to a seat device for rail vehicles and a rail vehicle. Background Technology

[0002] Currently, the interior structure of rail passenger cars is fixed, with standardized cars corresponding to specific functions, including second-class, first-class, business-class, dining car, and sleeper cars. Equipment boxes or restrooms are located at the car connections. This fixed interior structure can only meet the specific application needs of these functions. Nowadays, people prefer high-speed trains for faster and more comfortable travel, avoiding the fatigue of long journeys. However, in recent years, rail passenger cars have experienced low passenger volume during off-peak seasons, resulting in empty seats and wasted resources. With the rapid development of the express delivery industry, using high-speed trains to transport goods during off-peak seasons has become an option.

[0003] Current conventional technology proposes a rail vehicle carriage and rail vehicle with a variable interior layout. The interior layout of this rail vehicle carriage can switch between two interfaces. In the first interface, seats are mounted on seat mounting grooves via connectors. In the second interface, the seat mounting grooves are covered by floor groove covers, and carpet is laid on the upper surface of the floor, on which interior furnishings are arranged. The carriage can be converted from a passenger carriage to a freight carriage or a conference carriage by replacing the seats. However, this method requires removing the seats when changing carriage functions, necessitating additional storage space for the seats, and repeated seat removal can easily damage them. Furthermore, the floor needs to be replaced during the conversion, resulting in high costs and cumbersome work.

[0004] The information disclosed in the background section is only intended to enhance the understanding of the background of this application, and therefore may contain information that is not part of the prior art known to those skilled in the art. Summary of the Invention

[0005] This application provides a seat device for rail vehicles and a rail vehicle to solve the problems of existing rail vehicles requiring seat removal and low conversion efficiency when changing the function of the carriage.

[0006] To achieve the above objectives, this application provides the following technical solution: A seating device for rail vehicles, comprising: The track has a sliding inner cavity with a top opening along the longitudinal direction, and the sliding inner cavity has a locking recess arranged in the transverse direction; At least one set of seat modules, each set of seat modules includes a seat body, a sliding component and a locking component, the sliding component includes a sliding seat and a locking protrusion, the sliding seat is slidably connected to the inside of the sliding cavity and fixed to the seat body, the sliding seat is provided with the locking protrusion laterally, and the locking protrusion can engage with the locking recess; The locking assembly is installed on the seat body. The locking assembly can be activated to drive the locking protrusion and the locking recess to lock or release, so as to lock or unlock the sliding seat along the track longitudinally.

[0007] This application also provides a rail vehicle, including a floor and a rail vehicle seat device as described in any of the above embodiments, wherein the rail of the rail vehicle seat device is embedded in the floor and arranged longitudinally, and the upper surface of the rail is flush with the upper surface of the floor.

[0008] Compared with the prior art, the rail vehicle seat device and rail vehicle provided in this application have the following technical advantages: In this application, the seats are set as modular units. Each group of seat modules slides on the track through sliding components and locks or unlocks the sliding on the track through locking components. They can be unlocked and positioned independently, and the longitudinal spacing of the seats can be freely adjusted to flexibly adapt to different passenger carrying needs. When it is necessary to switch between passenger and freight transport, the seats can be folded up to one side of the carriage to free up carriage space and improve the utilization rate of carriage space. Attached Figure Description

[0009] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a schematic diagram of the seat device according to an embodiment of the present application when the passenger compartment is unfolded; Figure 2 This is a schematic diagram of the seat device according to an embodiment of this application when the freight car is folded up; Figure 3 This is a schematic diagram of the assembly structure of the seat module and track according to an embodiment of this application; Figure 4 This is a schematic diagram of the structure of the seat module according to an embodiment of this application; Figure 5 This is a schematic diagram of the assembly structure of the sliding component and the track according to an embodiment of this application; Figure 6 for Figure 5 A magnified schematic diagram of the local structure at point I; Figure 7This is a schematic diagram of the structure of the sliding component provided in the embodiments of this application; Figure 8 A schematic diagram of the assembly structure of the seat module and the track provided in an embodiment of this application; Figure 9 A schematic diagram of the assembly structure of the seat module and the dual tracks is provided for the embodiments of this application.

[0010] Figure label: Track 10, locking recess 11; Seat module 20, seat body 21, sliding component 22, locking component 23; Positioning component 211, seat mounting hook 212, sliding seat 221, locking protrusion 222, elastic element 223, linkage seat 224, mounting plate 2211, sliding wheel 2212, fixing pin 2213, locking plate 2241, handle 231, locking component 232, return spring 233, locking position 2311, unlocking position 2312. Detailed Implementation

[0011] This invention discloses a seat device for rail vehicles and a rail vehicle, in order to solve the problems of existing rail vehicles requiring seat removal and low conversion efficiency when changing the function of a carriage.

[0012] To make the technical solutions and advantages of the embodiments of this application clearer, the exemplary embodiments of this application will be described in further detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not an exhaustive list of all embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0013] Please see Figure 1-9 In one specific embodiment, the seat device for the rail vehicle 10 provided in this application is mainly installed on the floor of the rail vehicle 10 car to realize the longitudinal position adjustment and reliable locking of the seat.

[0014] The device includes a track 10 and at least one set of seat modules 20. The track 10 is fixedly installed on the floor of the vehicle car along the longitudinal direction of the track 10. A sliding inner cavity is formed inside the track 10 along its longitudinal direction. The sliding inner cavity is a long hollow structure, and a top opening communicating with the outside is opened at the top along the length direction of the sliding inner cavity. Preferably, the inner wall of the sliding inner cavity is provided with locking recesses 11 arranged transversely along the vehicle body. Multiple locking recesses 11 can be arranged at intervals along the longitudinal direction of the track 10 to form a multi-position locking and positioning structure.

[0015] Each seat module 20 is independently mounted on the track 10. Each seat module 20 specifically includes a seat body 21, a sliding component 22, and a locking component 23. The sliding component 22 is matched and installed inside the sliding cavity of the track 10, specifically including a sliding seat 221 and a locking protrusion 222. The sliding seat 221 is slidably mounted inside the sliding cavity and can slide freely along the longitudinal direction of the track 10. The upper structure of the sliding seat 221 passes through the top opening of the track 10 and is rigidly fixed to the bottom of the seat body 21 above it, so as to realize the synchronous movement of the seat body 21 and the sliding seat 221. The sliding seat 221 is equipped with a locking protrusion 222 on its lateral side. In one embodiment, the locking protrusion 222 can extend and retract along the lateral direction of the vehicle body. After the locking protrusion 222 extends outward, it can form a concave-convex engagement with the locking recess 11 on the side wall of the inner cavity of the track 10.

[0016] The locking assembly 23 is fixedly installed on the inner or front side of the seat body 21. The locking assembly 23 is connected to the locking protrusion 222 on the sliding seat 221 via an internal transmission structure. The locking assembly 23 can move and drive the locking protrusion 222 to lock or release from the locking recess 11, thereby locking or unlocking the sliding seat 221 along the longitudinal direction of the track 10. The locking assembly 23 can be configured as a linkage mechanism, cylinder, or electric push rod, etc., which acts on the locking protrusion 222 of the sliding seat 221, causing it to move and lock or release from the locking recess 11. Preferably, the track 10 has a T-groove structure, and its flush portion with the surface of the carriage is sealed with a rubber sealing strip to prevent exposed structure and wear.

[0017] The specific working process includes: when the seat position needs to be adjusted, the operator manually operates the locking component 23. The locking component 23 moves and drives the locking protrusion 222 to move away from the locking recess 11, so that the locking protrusion 222 separates from the locking recess 11 and releases the longitudinal limiting constraint of the sliding seat 221. At this time, the sliding seat 221 can drive the seat body 21 to slide freely longitudinally along the sliding inner cavity of the track 10 to realize the seat position sliding adjustment. When the seat slides to the target position, the locking component 23 is operated again. The locking component 23 drives the locking protrusion 222 to move towards the side closer to the locking recess 11, so that the locking protrusion 222 is engaged in the corresponding position of the locking recess 11 to form a locking fit. The longitudinal displacement of the sliding seat 221 is completely restricted, and the seat body 21 is locked and fixed.

[0018] The aforementioned multiple seat modules 20 can independently complete unlocking, sliding, and locking positioning operations. Each group of seats does not interfere with the others. The spacing between the seats can be flexibly adjusted according to actual passenger carrying needs, freeing up some space in the carriage and adapting to various usage scenarios such as wheelchair parking, luggage stacking, emergency passage, and passenger-cargo conversion.

[0019] The seat device for a rail vehicle 10 and the rail vehicle 10 provided in this application embodiment have the following technical advantages compared to the prior art: In this application, the seats are set as modular units. Each group of seat modules 20 slides on the track 10 through the sliding component 22 and locks or unlocks on the track 10 through the locking component 23. They can be unlocked and positioned independently, and the longitudinal spacing of the seats can be freely adjusted to flexibly adapt to different passenger carrying needs. When it is necessary to switch between passenger and freight transport, the seats can be folded up to one side of the carriage to free up carriage space and improve the utilization rate of carriage space.

[0020] In one embodiment, the sliding assembly 22 further includes a locking linkage mechanism for connecting the sliding seat 221 and the locking protrusion 222. The locking linkage mechanism includes a linkage seat 224 and an elastic element 223. The linkage seat 224 is arranged longitudinally along the sliding seat 221 and one end is hinged to the sliding seat 221. The locking protrusion 222 is fixed to the linkage seat 224. One end of the elastic element 223 is connected to the sliding seat 221, and the other end is fixed to the other end of the longitudinal direction of the linkage seat 224. It is used to drive the linkage seat 224 to rotate towards the side closer to the locking recess 11, thereby achieving a locking engagement between the locking protrusion 222 and the locking recess 11. The locking assembly 23 can abut against the linkage seat 224 and drive the linkage seat 224 to rotate away from the locking recess 11, thereby achieving the separation and release of the locking protrusion 222 and the locking recess 11.

[0021] One longitudinal end of the linkage seat 224 is hinged to the sliding seat 221. Preferably, pins are provided on both transverse sides of the linkage seat 224 to achieve hinge connection with the sliding seat 221. The locking protrusion 222 is fixedly installed on the upper surface of the linkage seat 224 and can rotate synchronously with the linkage seat 224 around the hinge fulcrum. One end of the elastic element 223 is connected to the sliding seat 221, and the other end is connected to the end of the linkage seat 224 away from the hinge fulcrum. In one embodiment, the elastic element 223 is connected to the sliding seat 221 by providing an abutment support. The abutment support is fixed in the inner cavity of the sliding seat 221 and has an abutment cavity. One end of the elastic element 223 extends into the abutment cavity for abutment and fixation, and the other end is connected to the linkage seat 224. When there is no external force to unlock, the elastic element 223 continuously pushes the linkage seat 224, causing the linkage seat 224 to rotate around the hinge fulcrum towards the side closer to the locking recess 11, which in turn causes the locking protrusion 222 to swing out and engage with the locking recess 11, maintaining a locked engagement state. In this embodiment, the elastic element 223 is preferably an elastic sheet.

[0022] The transmission end of the locking assembly 23 can abut against the linkage seat 224. When the operator operates the locking assembly 23, the locking assembly 23 outputs force to overcome the elastic force of the elastic element 223, pushing the linkage seat 224 to rotate away from the locking recess 11. The locking protrusion 222 then swings away from the locking recess 11, achieving separation and release. At this time, the sliding seat 221 can slide longitudinally along the track 10. When the seat is adjusted to the target position, the locking assembly 23 is released, and the locking assembly 23 releases the pressure constraint on the linkage seat 224. The elastic element 223 drives the linkage seat 224 to rotate again, and the locking protrusion 222 re-engages into the locking recess 11 to complete the automatic locking.

[0023] In this embodiment, the linkage seat 224 is preferably configured as a structure with an approximately right-angled triangle in longitudinal cross-section, with its long right-angle side facing upward and a locking protrusion 222 provided; the horizontal pin is located at the right angle with its hypotenuse facing downward, which provides clearance space for the up-and-down swing of the linkage seat 224 compared to a rectangular cross-section structure; in other embodiments, the shape and structure of the linkage seat 224 can also be configured as needed, all of which are within the protection scope of this application.

[0024] Furthermore, a locking plate 2241 is fixedly provided on the top wall of the linkage seat 224. The locking plate 2241 extends longitudinally, and a number of locking protrusions 222 are evenly spaced along the longitudinal direction on the locking plate 2241. A number of locking recesses 11 are evenly arranged along the longitudinal direction on the inner top wall of the sliding cavity of the track 10. When the elastic element 223 drives the linkage seat 224 to rotate towards the side closer to the locking recesses 11, the locking plate 2241 swings upward with the linkage seat 224, and the multiple locking protrusions 222 simultaneously swing upward and embed into the corresponding locking recesses 11 on the inner top wall, forming a multi-point synchronous locking engagement. When the locking component 23 is operated to overcome the force of the elastic element 223 and drive the linkage seat 224 to rotate in the opposite direction, the locking plate 2241 swings downward, and all the locking protrusions 222 simultaneously disengage from the locking recesses 11, completing a unified unlocking and release. Multiple locking protrusions 222 simultaneously participate in bearing the load, dispersing the longitudinal impact load on the seat; the densely arranged locking recesses 11 along the longitudinal direction form a continuous multi-position positioning structure, enabling small-pitch adjustment of the seat. The locking and engaging structure is located in the upper part of the sliding inner cavity, and is arranged vertically and horizontally with the structure of the supporting sliding seat 221 below, resulting in a compact mechanism layout that avoids movement interference.

[0025] In another embodiment, the sliding seat 221 provided in this application includes a mounting plate 2211 and a plurality of sliding wheels 2212; wherein, two mounting plates 2211 are laterally opposite and form an installation space, the mounting plates 2211 extend longitudinally, and the locking linkage mechanism is located in the installation space; the plurality of sliding wheels 2212 are arranged longitudinally along the sliding seat 221 to drive the sliding seat 221 to slide in the sliding cavity.

[0026] Two sets of mounting plates 2211 are arranged laterally at intervals, and both mounting plates 2211 extend longitudinally, forming an installation space between them. The aforementioned locking linkage mechanism is arranged entirely within the installation space between the two mounting plates 2211, and the mounting plates 2211 provide lateral protection for the locking linkage mechanism. Several sets of sliding wheels 2212 are mounted on the sliding seat 221 and arranged sequentially along the longitudinal direction of the sliding seat 221. Preferably, a set of sliding wheels 2212 is provided at each of the longitudinal ends of the mounting plate 2211, and each set of sliding wheels 2212 includes two oppositely arranged sliding wheels 2212. The two sliding wheels 2212 pass laterally through the two mounting plates 2211 via axles to achieve connection with the mounting plates 2211. To facilitate the installation of the sliding wheels 2212, the lateral interval between the longitudinal ends of the two mounting plates 2211 is smaller than the lateral interval between the two mounting plates 2211 in the middle, thereby providing space for the installation of the sliding wheels 2212.

[0027] When the seat body 21 is pushed, the sliding wheel 2212 rolls, causing the sliding seat 221 to roll and slide longitudinally along the sliding inner cavity. The sliding wheel 2212 is mounted between two mounting plates 2211 via a wheel axle, making assembly and disassembly convenient. The frame-type sliding seat 221 has a lightweight structure and sufficient internal space to accommodate the swing stroke required by the linkage seat 224, and the moving parts do not interfere with each other.

[0028] In another embodiment, the locking assembly 23 includes a handle 231, which is hinged to the seat body 21 and can rotate in a vertical plane; the bottom of the handle 231 is provided with a locking member 232 for abutting against the linkage seat 224. The handle 231 can drive the locking member 232 to rotate in a vertical plane until it abuts against the linkage seat 224, and drive the linkage seat 224 to rotate away from the locking recess 11 for separation and release.

[0029] When the seat needs to be unlocked, the operator pulls the handle 231 downwards or forwards. The handle 231 rotates in the vertical plane around the hinge point, causing the locking member 232 to swing synchronously. The locking member 232 swings until it abuts against the linkage seat 224, continuously applying pressure to overcome the elastic force of the elastic element 223, pushing the linkage seat 224 to rotate away from the locking recess 11. The locking protrusion 222 separates from the locking recess 11 and is released, the sliding seat 221 is unlocked, and the seat body 21 can slide longitudinally along the track 10 to adjust its position. After the seat is adjusted to the target position, the handle 231 is released, and the pressure applied by the handle 231 to the linkage seat 224 disappears. The elastic element 223 drives the linkage seat 224 to rotate, and the locking protrusion 222 re-engages into the locking recess 11 to achieve locking.

[0030] Specifically, the locking assembly 23 also includes a return spring 233 and / or a return torsion bar; one end of the return spring 233 is hinged to the seat body 21 and the other end is hinged to the handle 231 for driving the handle 231 to reset; one end of the return torsion bar is connected to the seat body 21 and the other end is connected to the handle 231 for driving the handle 231 to reset.

[0031] One end of the return spring 233 is hinged to the seat body 21, and the other end is hinged to the handle 231. When the operator pulls the handle 231 to unlock, the handle 231 swings and causes the return spring 233 to stretch or compress and deform, storing elastic potential energy; after the handle 231 is released, the return spring 233 releases its elastic force and directly drives the handle 231 to rotate back to its original position.

[0032] Alternatively, a reset torsion bar can be used. One end of the reset torsion bar is fixedly connected to the seat body 21, and the other end is connected to the handle 231. Preferably, the reset torsion bar is fitted onto the hinge axis of the handle 231. When the handle 231 is turned, the reset torsion bar stores torsional energy; after the external force is removed, the reset torsion bar uses torsional elasticity to drive the handle 231 back to its initial position. Of course, a reset spring 233 and a reset torsion bar can also be installed simultaneously, with both working together to provide reset torque.

[0033] Furthermore, the seat body 21 is also provided with a positioning member 211; the handle 231 is provided with a locking position 2311 and an unlocking position 2312 that respectively cooperate with the positioning member 211. When the sliding seat 221 is in the locked and fixed state, the positioning member 211 cooperates with the locking position 2311. When the sliding seat 221 is in the unlocked and sliding state, the positioning member 211 cooperates with the unlocking position 2312.

[0034] In this embodiment, the positioning member 211 is preferably an elastic bead positioning pin, and both the locking position 2311 and the unlocking position 2312 are arc-shaped groove structures. The locking position 2311 is formed on the outer contour of the handle 231, and the unlocking position 2312 is provided in the middle of the handle 231, corresponding to the seat locking and unlocking conditions, respectively. Under normal conditions, under the driving action of the return spring 233 or the return torsion bar, the handle 231 is held in the initial position, the positioning member 211 of the seat body 21 and the locking position 2311 of the handle 231 are engaged with each other, and the handle 231 is stably limited to the locked position. At this time, the locking protrusion 222 and the locking recess 11 are locked together, the sliding seat 221 is in a locked and fixed state, and the seat cannot slide. When the seat position needs to be adjusted, the operator moves the handle 231 downwards against the spring force of the return spring 233. The handle 231 slides and switches positions relative to the positioning part 211, eventually causing the positioning part 211 to engage with the unlocking position 2312. The handle 231 remains stably in the unlocked position, without the need for continuous hand gripping. At this time, the locking part 232 at the bottom of the handle 231 continuously presses against the linkage seat 224, and the locking protrusion 222 remains separated from the locking recess 11. The sliding seat 221 is in the unlocked sliding state, and the operator can push the seat body 21 with both hands to complete the longitudinal position adjustment.

[0035] After the seat position is adjusted, the handle 231 can be gently pulled to disengage from the unlocking slot 2312. The handle 231 will automatically spring back to its original position under the action of the return spring 233 or the return torsion bar. The positioning component 211 can be manually re-engaged into the locking slot 2311, and the device will return to the locked state.

[0036] Preferably, the handle 231 is an L-shaped plate structure, the short side of the L-shaped structure is hinged to the seat body 21 through a hinge shaft, the inner side of the long side of the L-shaped structure is provided with an unlocking slot 2312, and the middle of the long side of the L-shaped structure is provided with a locking slot 2311.

[0037] In a preferred embodiment, the sliding seat 221 further includes a plurality of fixing pins 2213, the two ends of any fixing pin 2213 being fixed to the corresponding mounting plate 2211 respectively; the bottom longitudinal ends of the seat body 21 are respectively provided with seat mounting hooks 212, the seat mounting hooks 212 being used to overlap with the fixing pins 2213, and the two are fixed by threaded fasteners.

[0038] Each fixing pin 2213 is arranged laterally, and its two ends are fixedly connected to the corresponding mounting plates 2211 on both sides. The fixing pin 2213 is erected between the two mounting plates 2211, which can maintain the distance between the two mounting plates 2211, improve the rigidity of the sliding seat 221 frame, and also serve as the overlapping load-bearing component of the seat body 21. Seat mounting hooks 212 are respectively provided at the front and rear ends of the bottom of the seat body 21 along the longitudinal direction; the seat mounting hooks 212 are preferably provided on the plate structure, and the longitudinal front wall of the plate structure has a rearward recessed groove to form the aforementioned seat mounting hooks 212.

[0039] During assembly, the seat body 21 is hoisted or lifted above the sliding seat 221, so that the seat mounting hook 212 at the bottom of the seat is fastened to the outside of the fixing pin 2213, thus achieving pre-positioning support between the seat body 21 and the sliding seat 221; then, threaded fasteners are inserted downwards from the top of the plate structure to press the fixing pin 2213 and the seat mounting hook 212 together, thus completing the rigid connection between the seat body 21 and the sliding seat 221.

[0040] Based on the above embodiments, the sliding component 22 or seat mounting hook 212 of the seat body 21 may occupy a certain amount of space in the longitudinal direction, making it impossible for adjacent seat modules 20 to be compressed to their minimum in the longitudinal direction. Therefore, the track 10 is set into two groups, each group including two tracks 10 arranged laterally opposite each other; each group of seat modules 20 is alternately arranged on the two groups of tracks 10, such as... Figure 9 As shown. Each set of tracks 10 includes two tracks 10 arranged horizontally and parallel to each other. The sliding seat 221 of the same seat module 20 is assembled inside the sliding cavity of the two tracks 10 in the same set, and is guided and supported by the two side tracks 10. Multiple seat modules 20 are alternately installed on the two sets of tracks 10 in the longitudinal direction. Adjacent seat modules 20 are arranged in different sets of tracks 10, so that the bottom structure of adjacent seat modules 20 can have compression space in the longitudinal direction, so that each adjacent seat module 20 can fit tightly in the longitudinal direction, greatly compressing the internal space.

[0041] Meanwhile, during train operation, staff can operate the locking components 23 of the seat modules 20 on the two sets of tracks 10 respectively, slide them longitudinally to adjust the seat positions, so that the seats are arranged in a staggered manner, flexibly change the width of the carriage aisle and the passenger seating space, and meet different usage needs such as regular passenger carrying and reservation of wheelchair accessibility.

[0042] Understandably, the seat cushion of the seat body 21 in this application can achieve a close fit between the seat cushion and the backrest through mature seat cushion folding technology. Furthermore, the folded seat can be pushed to one end of the carriage along the seat fixing track 10 using the aforementioned method, allowing the seat to fit snugly against the backrest and freeing up a significant amount of carriage space. In the event of seat use, the seat can be moved to a designated position, and then the seat cushion can be unfolded and the seat fixed to meet passenger carrying needs. The aforementioned device can be applied to railway vehicles such as mainline EMUs or urban EMUs that require passenger and freight transport conversion.

[0043] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0044] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A seating device for rail vehicles, characterized in that, include: The track (10) has a sliding inner cavity with a top opening along the longitudinal direction, and the sliding inner cavity has a locking recess (11) arranged in the transverse direction. At least one set of seat modules (20), each set of seat modules (20) includes a seat body (21), a sliding component (22) and a locking component (23). The sliding component (22) includes a sliding seat (221) and a locking protrusion (222). The sliding seat (221) is slidably connected to the inside of the sliding cavity and fixed to the seat body (21). The locking protrusion (222) is provided laterally on the sliding seat (221). The locking protrusion (222) can engage with the locking recess (11). The locking assembly (23) is installed on the seat body (21). The locking assembly (23) can move and drive the locking protrusion (222) and the locking recess (11) to lock or separate, so as to realize the longitudinal locking or unlocking of the sliding seat (221) along the track (10).

2. The seat device for rail vehicles according to claim 1, characterized in that, The sliding component (22) further includes a locking linkage mechanism, which includes: Linkage seat (224) is arranged along the longitudinal direction of the sliding seat (221), and one end is hinged to the sliding seat (221); the locking protrusion (222) is fixed to the linkage seat (224). The elastic element (223) is connected at one end to the sliding seat (221) and at the other end to the longitudinal end of the linkage seat (224), and is used to drive the linkage seat (224) to rotate toward the side closer to the locking recess (11) to realize the locking protrusion (222) and the locking recess (11); The locking component (23) can abut against the linkage seat (224) and drive the linkage seat (224) to rotate away from the locking recess (11), thereby realizing the separation and release of the locking protrusion (222) and the locking recess (11).

3. The seat device for rail vehicles according to claim 2, characterized in that, The sliding seat (221) includes: Two mounting plates (2211) are laterally opposed and form an installation space, the mounting plates (2211) extend longitudinally, and the locking linkage mechanism is located within the installation space; Several sets of sliding wheels (2212) are arranged longitudinally along the sliding seat (221) to drive the sliding seat (221) to slide in the sliding cavity.

4. The seat device for rail vehicles according to claim 2, characterized in that, The top wall of the linkage seat (224) is provided with a locking plate (2241), and the locking plate (2241) is provided with a plurality of locking protrusions (222) evenly in the longitudinal direction. The inner top wall of the track (10) is uniformly provided with several of the locking recesses (11) along the longitudinal direction.

5. The seat device for rail vehicles according to claim 2, characterized in that, The locking assembly (23) includes: The handle (231) is hinged to the seat body (21) and can rotate in the vertical plane; the bottom of the handle (231) is provided with a locking member (232) for abutting against the linkage seat (224). The handle (231) can drive the locking member (232) to rotate in the vertical plane until it abuts against the linkage seat (224), and drive the linkage seat (224) to rotate away from the locking recess (11) to separate and release.

6. The seat device for rail vehicles according to claim 5, characterized in that, The locking assembly (23) further includes: A return spring (233) is provided, one end of which is hinged to the seat body (21) and the other end of which is hinged to the handle (231) for driving the handle (231) to return to its original position. And / or, a reset torsion bar, one end of which is connected to the seat body (21) and the other end of which is connected to the handle (231) for driving the handle (231) to reset.

7. The seat device for rail vehicles according to claim 6, characterized in that, The seat body (21) is also provided with a positioning element (211). The handle (231) is provided with a locking slot (2311) and an unlocking slot (2312) that respectively cooperate with the positioning member (211). When the sliding seat (221) is in the locked and fixed state, the positioning member (211) cooperates with the locking slot (2311). When the sliding seat (221) is in the unlocked and sliding state, the positioning member (211) cooperates with the unlocking slot (2312).

8. The seat device for rail vehicles according to claim 3, characterized in that, The sliding seat (221) also includes a plurality of fixing pins (2213), wherein the two lateral ends of any fixing pin (2213) are respectively fixed to the corresponding mounting plate (2211); The bottom longitudinal ends of the seat body (21) are respectively provided with seat mounting hooks (212), which are used to overlap with the fixing pin (2213) and are fixed by threaded fasteners.

9. The rail vehicle seat assembly according to any one of claims 1-8, characterized in that, The tracks (10) are in two groups, each group including two tracks (10) arranged laterally opposite each other. Each set of seat modules (20) is alternately placed on the two sets of tracks (10).

10. A rail vehicle, characterized in that, Includes a floor and a seat assembly for rail vehicles as described in any one of claims 1-9, wherein the track (10) of the seat assembly for rail vehicles is embedded in the floor and arranged longitudinally, and the upper surface of the track (10) is flush with the upper surface of the floor.

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