Rail Vehicles

Abstract

The present invention provides a rail vehicle, which relates to the technical field of rail engineering vehicles, and solves the technical problem that when existing rail vehicles pass through curved tracks, there are great safety hazards when people cross the vehicle. The rail vehicle includes a pedal assembly and at least two car bodies, and the two ends of the car body along the length direction respectively have car ends. The pedal assembly is located between two adjacent car bodies and connects the two car ends. There is an intermediate area between the two adjacent car ends, and the intermediate area includes a central area located in the center and two edge areas located on opposite sides of the central area along the width direction of the car body. A pedal assembly is provided in any one of the two edge areas, or a pedal assembly is provided in both edge areas. The length of the pedal assembly in the length direction of the car body is adjustable. The present invention can reduce the safety hazards when people cross the vehicle when the rail vehicle passes through a curved track, and improve the safety factor and traffic efficiency when people cross the vehicle.

Description

Technical Field

[0001] The present invention relates to the technical field of rail engineering vehicles, and in particular to a rail vehicle. Background Art

[0002] In the field of rail engineering vehicle technology, a long rail train set refers to a group of special vehicles composed of a variety of special vehicles with different functions and structures for transporting long welded rails. In the construction of seamless railway lines, the long rail train set is responsible for loading, transporting, unloading and recycling long rails.

[0003] Long rail vehicles are mainly composed of camping cars, power generation cars, safety cars, rail transport cars, locking cars, first cars, middle cars, and last cars. The rail vehicles of long rail vehicles usually place the operating equipment in the middle of the vehicle body width direction, and the personnel passages are located on both sides of the vehicle body width direction. People can only pass from both sides of the vehicle body. Existing rail vehicles are equipped with ferry boards between adjacent vehicle ends, and the ferry boards can only cover the middle part of the vehicle body due to the structure of the operating equipment.

[0004] However, when existing rail vehicles pass through curved tracks, the distance between the two sides of the vehicle changes too much, so the ferry can only cover the middle part of the vehicle body, and the two sides are open, resulting in a major safety hazard when people cross the vehicle. Summary of the invention

[0005] In order to solve at least one of the problems mentioned in the background technology, the present invention provides a rail vehicle that can reduce the safety hazards of people when straddling the vehicle when the rail vehicle passes through a curved track, and improve the safety factor and traffic efficiency of people when straddling the vehicle.

[0006] To achieve the above objectives, the present invention provides a rail vehicle, including a pedal assembly and at least two vehicle bodies, wherein the vehicle bodies have vehicle ends at both ends along the length direction, and the pedal assembly is located between two adjacent vehicle bodies and connects the two vehicle ends.

[0007] There is a middle area between two adjacent vehicle ends, and the middle area includes a central area located in the center and two edge areas located on opposite sides of the central area along the width direction of the vehicle body.

[0008] A pedal assembly is arranged in any one of the two edge regions, or a pedal assembly is arranged in both edge regions.

[0009] The length of the pedal assembly in the length direction of the vehicle body is adjustable.

[0010] In the above-mentioned rail vehicle, optionally, the pedal assembly includes a fixed pedal seat, a connecting pedal and a sliding pedal seat arranged in sequence along the length direction of the vehicle body, and the two vehicle ends include a first vehicle end and a second vehicle end.

[0011] The first end of the fixed pedal seat is connected to the first vehicle end, the first end of the sliding pedal seat is connected to the second vehicle end, the first end of the connecting pedal is fixedly connected to the second end of the fixed pedal seat, and the second end of the connecting pedal is slidably connected to the second end of the sliding pedal seat.

[0012] In the above-mentioned rail vehicle, optionally, a slide groove is provided at the second end of the sliding pedal seat, and a sliding member is provided at the second end of the connecting pedal, the sliding member is located in the slide groove and slides back and forth along the extension direction of the slide groove.

[0013] The extending direction of the slide groove is the length direction of the vehicle body.

[0014] In the above-mentioned rail vehicle, optionally, a through hole is provided at the second end of the fixed pedal seat, a first connecting component is provided at the first end of the connecting pedal, and the first connecting component penetrates the through hole to connect the connecting pedal and the fixed pedal seat.

[0015] In the above-mentioned rail vehicle, optionally, the first connecting assembly includes a connecting shaft, an anti-wear sleeve and a fastener, the anti-wear sleeve is sleeved on the connecting shaft, and the fastener is connected to the connecting shaft.

[0016] In the above-mentioned rail vehicle, optionally, a guardrail device is provided between the first vehicle end and the second vehicle end, and the guardrail device is provided on a side of the pedal assembly away from the central area.

[0017] In the above-mentioned rail vehicle, optionally, the guardrail device includes a first connecting end, a second connecting end, a guardrail outer tube and a guardrail inner tube.

[0018] The first connection end, the guardrail outer tube, the guardrail inner tube and the second connection end are connected end to end in sequence, the first connection end is connected to the first vehicle end, and the second connection end is connected to the second vehicle end.

[0019] The guardrail outer tube is sleeved outside the guardrail inner tube, and the guardrail outer tube is slidably connected to the guardrail inner tube. The guardrail outer tube is sleeved outside the guardrail inner tube and slides back and forth along the length direction of the vehicle body.

[0020] In the above-mentioned rail vehicle, optionally, a second connecting assembly is arranged between one end of the first connecting end and the first vehicle end, and / or between one end of the second connecting end and the second vehicle end, and the second connecting assembly includes a first connecting member, a second connecting member, and a third connecting member connected in sequence.

[0021] The first connecting member and the second connecting member are connected via a first rotating shaft, and the second connecting member and the third connecting member are connected via a second rotating shaft.

[0022] An extending direction of the first rotating shaft and an extending direction of the second rotating shaft are perpendicular to each other.

[0023] In the above-mentioned rail vehicle, optionally, a plurality of pedal assemblies are arranged in the same edge area, and the plurality of pedal assemblies are arranged at intervals along the width direction of the vehicle body.

[0024] In the above-mentioned rail vehicle, optionally, it also includes a working trolley, at least two pedal assemblies are arranged in each edge area, and a channel is arranged between adjacent pedal assemblies, and the working trolley reciprocates between adjacent vehicle bodies through the channel.

[0025] The rail vehicle provided by the present invention arranges a pedal assembly between adjacent car bodies of the rail vehicle, and the pedal assembly is arranged in the edge area between the two car ends of the adjacent car bodies, so that personnel can perform cross-car operations from the edge area between the car ends, avoiding the interference of working equipment located in the middle of the car body with personnel crossing the car, and the pedal assembly will not affect the walking of the working equipment. In addition, the pedal assembly is adjustable in the length direction of the car body, so that when the rail vehicle passes through a curved track, the length of the pedal assembly can be automatically adjusted as the length of both sides of the car end changes, so that both sides of the car end can be covered by the pedal assembly, making it more convenient and safe for personnel to cross the car. The above arrangement reduces the safety hazards of personnel when crossing the car, and improves the safety factor and travel efficiency of personnel when crossing the car. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 A schematic diagram of the structure of a rail vehicle provided by an embodiment of the present invention;

[0028] Figure 2 A front view of a pedal assembly of a rail vehicle provided by an embodiment of the present invention in a first state;

[0029] Figure 3 A top view of a pedal assembly of a rail vehicle provided by an embodiment of the present invention in a first state;

[0030] Figure 4 A schematic structural diagram of a guardrail device for a rail vehicle provided in an embodiment of the present invention;

[0031] Figure 5 A schematic diagram of the structure of a rail vehicle in a second state provided by an embodiment of the present invention;

[0032] Figure 6 A schematic structural diagram of a pedal assembly of a rail vehicle in a third state provided by an embodiment of the present invention;

[0033] Figure 7 A schematic structural diagram of a guardrail device for a rail vehicle in a third state provided by an embodiment of the present invention;

[0034] Figure 8 A schematic structural diagram of a first connecting assembly for a rail vehicle provided in an embodiment of the present invention;

[0035] Fig. 9 A schematic structural diagram of a second connecting assembly of a rail vehicle provided in an embodiment of the present invention.

[0036] Description of reference numerals:

[0037] 100-rail vehicles;

[0038] 10- pedal assembly;

[0039] 11-Fixed pedal seat;

[0040] 12- Connect the pedals;

[0041] 13-sliding pedal seat;

[0042] 14-chute;

[0043] 20-first vehicle end;

[0044] 30- second vehicle end;

[0045] 40-a first connection component;

[0046] 41-connecting shaft;

[0047] 42- anti-wear sleeve;

[0048] 43- fasteners;

[0049] 50-Guardrail device;

[0050] 51-first connection end;

[0051] 52- second connection end;

[0052] 53-guardrail outer tube;

[0053] 54-Guardrail inner tube;

[0054] 60- a second connection component;

[0055] 61- first connecting member;

[0056] 62- second connecting member;

[0057] 63- third connecting member;

[0058] 64-first rotating shaft;

[0059] 65- second rotating shaft;

[0060] 70-Work trolley. DETAILED DESCRIPTION

[0061] In the field of rail engineering vehicle technology, a long rail train refers to a group of special vehicles for transporting welded long rails, which is composed of a variety of special vehicles with different functions and structures. The long rail train mainly consists of a camping car, a power generation car, a safety car, a rail transport car, a locking car, a first car for operation, a middle car for operation, and a last car for operation. The rail vehicles of the long rail train usually place the operating equipment in the middle of the width of the vehicle body, and the personnel passages are located on both sides of the width of the vehicle body. When passing, personnel can only pass from both sides of the vehicle body. There is a ferry board between the adjacent vehicle ends of the existing rail vehicles. Since the operating equipment on the rail vehicle also has a driving track, in order not to affect the work of the operating equipment, the ferry board can only be located on the inner side of the driving track of the operating equipment. Therefore, the ferry board can only cover the middle position of the vehicle body due to the structural limitations of the operating equipment. However, when existing rail vehicles pass through curved tracks, the distance between the two sides of the vehicle ends changes too much, so the gangway can only cover the middle part of the vehicle body, and the two sides in the width direction of the vehicle body are open. There is no gangway covering this area. Therefore, when people pass through the edges on both sides in the width direction of the vehicle body, there is a risk of falling due to stepping on air, resulting in a major safety hazard when people cross the vehicle.

[0062] The present invention provides a rail vehicle, which provides a pedal assembly between adjacent car bodies of the rail vehicle. The pedal assembly is provided in the edge area between the two car ends of the adjacent car bodies, so that personnel can perform cross-car operations from the edge area between the car ends, avoiding the interference of operating equipment located in the middle of the car body with personnel crossing the car, and the pedal assembly will not affect the walking of the operating equipment. In addition, the pedal assembly is adjustable in the length direction of the car body, so that when the rail vehicle passes through a curved track, the length of the pedal assembly can be automatically adjusted as the length of both sides of the car end changes, so that both sides of the car end can be covered by the pedal assembly, making it more convenient and safe for personnel to cross the car. The above-mentioned arrangement reduces the safety hazards of personnel when crossing the car, and improves the safety factor and travel efficiency of personnel when crossing the car.

[0063] In order to make the purpose, technical scheme and advantages of the present invention clearer, the technical scheme in the embodiment of the present invention will be described in more detail below in conjunction with the drawings in the preferred embodiments of the present invention. In the drawings, the same or similar reference numerals throughout represent the same or similar parts or parts with the same or similar functions. The described embodiments are part of the embodiments of the present invention, not all of them. The embodiments described below with reference to the drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limitations on the present invention. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. The embodiments of the present invention are described in detail below in conjunction with the drawings.

[0064] Figure 1 A schematic structural diagram of a rail vehicle provided in an embodiment of the present invention. Figure 2 A front view of a pedal assembly of a rail vehicle provided by an embodiment of the present invention in a first state. Figure 3 A top view of a pedal assembly of a rail vehicle provided by an embodiment of the present invention in a first state. Figure 4 A schematic structural diagram of a guardrail device for a rail vehicle provided in an embodiment of the present invention. Figure 5 A schematic structural diagram of a rail vehicle in a second state provided by an embodiment of the present invention. Figure 6 A schematic structural diagram of a pedal assembly of a rail vehicle in a third state provided by an embodiment of the present invention. Figure 7 A schematic structural diagram of a guardrail device for a rail vehicle in a third state provided by an embodiment of the present invention. Figure 8 A schematic structural diagram of a first connecting assembly for a rail vehicle provided in an embodiment of the present invention. Fig. 9 A schematic diagram of the structure of a second connection assembly for a rail vehicle provided in an embodiment of the present invention. Figures 1 to 9 As shown, an embodiment of the present invention provides a rail vehicle.

[0065] The rail vehicle 100 includes a pedal assembly 10 and at least two car bodies, each of which has a car end at both ends along the length direction. The pedal assembly 10 is located between two adjacent car bodies and connects the two car ends. There is an intermediate area between the two adjacent car ends, and the intermediate area includes a central area located in the center and two edge areas located on opposite sides of the central area along the width direction of the car body. The pedal assembly 10 is arranged in any one of the two edge areas, or the pedal assembly 10 is arranged in both edge areas. The length of the pedal assembly 10 in the length direction of the car body is adjustable.

[0066] By arranging a pedal assembly 10 between adjacent car bodies of the rail vehicle 100, the pedal assembly 10 is arranged in the edge area between the two car ends of the adjacent car bodies, so that personnel can perform cross-car operations from the edge area between the car ends, avoiding the interference of the working equipment located in the middle of the car body with the personnel crossing the car, and the pedal assembly 10 will not affect the walking of the working equipment. In addition, the pedal assembly 10 is adjustable in the length direction of the car body, so that when the rail vehicle 100 passes through a curved track, the length of the pedal assembly 10 can be automatically adjusted as the length of both sides of the car ends changes. When the side between the car ends becomes longer, the pedal assembly 10 extends, and when the side between the car ends shortens, the pedal assembly 10 shortens, so that both sides of the car ends can be covered by the pedal assembly 10, making it more convenient and safe for personnel to cross the car. The above-mentioned arrangement reduces the safety hazards of personnel when crossing the car, and improves the safety factor and passage efficiency of personnel when crossing the car.

[0067] Further, the pedal assembly 10 includes a fixed pedal seat 11, a connecting pedal 12 and a sliding pedal seat 13 arranged in sequence along the length direction of the vehicle body, and the two vehicle ends include a first vehicle end 20 and a second vehicle end 30. The first end of the fixed pedal seat 11 is connected to the first vehicle end 20, the first end of the sliding pedal seat 13 is connected to the second vehicle end 30, the first end of the connecting pedal 12 is fixedly connected to the second end of the fixed pedal seat 11, and the second end of the connecting pedal 12 is slidably connected to the second end of the sliding pedal seat 13.

[0068] In this way, by setting the fixed pedal seat 11 and the sliding pedal seat 13, one end of the pedal assembly 10 is relatively fixed to the first vehicle end 20, and the other end of the pedal assembly 10 can slide between the second vehicle end 30, so that the pedal assembly 10 is adjustable in the length direction. When the rail vehicle 100 passes through a curved track, the pedal assembly 10 can automatically adjust with the length change of both sides of the vehicle end, and can cover both sides of the vehicle end, making it more convenient and safe for people to cross the vehicle. Among them, the connection method between the fixed pedal seat 11 and the first vehicle end 20, and the sliding pedal seat 13 and the second vehicle end 30 can be a detachable connection or a fixed connection. In the embodiment of the present invention, welding is used, which has the advantages of firm and reliable connection, convenience, etc. The present invention does not limit this, and it can be selected according to actual conditions.

[0069] Furthermore, a slide groove 14 is provided at the second end of the sliding pedal seat 13, and a sliding member is provided at the second end of the connecting pedal 12. The sliding member is located in the slide groove 14 and slides back and forth along the extension direction of the slide groove 14. The extension direction of the slide groove 14 is the length direction of the vehicle body. In this way, by providing the slide groove 14 and the sliding member, the sliding member of the connecting pedal 12 can slide back and forth on the slide groove 14 of the sliding pedal seat 13. When the length of the pedal assembly 10 is shortened, the sliding member slides in a direction away from the fixed pedal seat 11, and when the length of the pedal assembly 10 is extended, the sliding member slides in a direction close to the fixed pedal seat 11.

[0070] In the embodiment of the present invention, the rail vehicle 100 has three states, the first state is a stationary state or a straight-line running state, the second state is a turning running state of the rail vehicle 100, and the third state is an uphill or downhill running state, and the second state and the third state are both passing a curved track. When in the first state, the pedal assembly 10 is in an initial length, when in the second state, the pedal assembly 10 located on the outer side of the vehicle end turn is in an extended state, and the pedal assembly 10 located on the inner side of the vehicle end turn is in a shortened state, and when in the third state, the pedal assembly 10 is in an extended state.

[0071] Further, a through hole is provided at the second end of the fixed pedal seat 11, and a first connecting component 40 is provided at the first end of the connecting pedal 12, and the first connecting component 40 penetrates the through hole to connect the connecting pedal 12 and the fixed pedal seat 11. In this way, the fixed pedal seat 11 and the connecting pedal 12 can be fastened and connected.

[0072] Furthermore, the first connecting assembly 40 includes a connecting shaft 41, an anti-wear sleeve 42 and a fastener 43. The anti-wear sleeve 42 is sleeved on the connecting shaft 41, and the fastener 43 is connected to the connecting shaft 41. The function of the anti-wear sleeve 42 is mainly to prevent the connecting shaft 41 from being worn and failing when the pedal assembly 10 is extended and retracted multiple times. In particular, the anti-wear sleeve 42 can be made of wear-resistant materials such as wear-resistant cast iron, high manganese steel and alloy steel. One end of the connecting shaft 41 can be welded to the connecting pedal 12, and the other end can be provided with an external thread. The fastener 43 is a nut, which makes the connection more convenient and firm. In addition, the sliding member can also adopt the first connecting assembly 40, and the slide groove 14 can be a strip hole. In this way, the anti-wear sleeve 42 is sleeved on the connecting shaft 41 and slides in the slide groove 14 together, which can not only adjust the length of the pedal assembly 10 by reciprocating sliding, but also fasten the sliding pedal seat 13 to the connecting pedal 12.

[0073] Furthermore, a guardrail device 50 is provided between the first vehicle end 20 and the second vehicle end 30, and the guardrail device 50 is provided on a side of the pedal assembly 10 away from the central area. In this way, when a person passes on the pedal assembly 10, the guardrail device 50 can protect the person, and the person can also hold the guardrail device 50 to maintain his balance, so as to prevent the person from falling or falling due to the unstable center of gravity caused by the bumps or turns of the vehicle, thereby improving the safety of the rail vehicle 100.

[0074] Further, the guardrail device 50 includes a first connection end 51, a second connection end 52, a guardrail outer tube 53 and a guardrail inner tube 54. The first connection end 51, the guardrail outer tube 53, the guardrail inner tube 54 and the second connection end 52 are connected end to end in sequence, the first connection end 51 is connected to the guardrail on the first vehicle end 20, and the second connection end 52 is connected to the guardrail on the second vehicle end 30. The guardrail outer tube 53 is sleeved on the outside of the guardrail inner tube 54, and the guardrail outer tube 53 is slidably connected to the guardrail inner tube 54, and the guardrail outer tube 53 is sleeved on the outside of the guardrail inner tube 54 and reciprocates along the length direction of the vehicle body.

[0075] In this way, through the sliding connection between the guardrail outer tube 53 and the guardrail inner tube 54, the length of the guardrail device 50 can be automatically adjusted according to the length change of the two sides of the vehicle end, and the length of the guardrail device 50 can always be consistent with the length of the pedal assembly 10, so that when the rail vehicle 100 passes through the curved track, people can also pass safely and quickly on the pedal assembly 10. In addition, the guardrail outer tube 53 can be directly sleeved on the guardrail inner tube 54, and the length of the guardrail inner tube 54 extending into the guardrail outer tube 53 should be long enough, and the length should be greater than the maximum length that the guardrail device 50 needs to adjust, so that the guardrail outer tube 53 will always remain connected with the guardrail inner tube 54 and will not separate.

[0076] Furthermore, a second connecting assembly 60 is arranged between one end of the first connecting end 51 and the guardrail of the first vehicle end 20, and / or between one end of the second connecting end 52 and the guardrail of the second vehicle end 30, and the second connecting assembly 60 includes a first connecting member 61, a second connecting member 62, and a third connecting member 63 connected in sequence.

[0077] Among them, one end of the first connecting member 61 is fixedly connected to the guardrail of the first vehicle end 20 or the second vehicle end 30, and one end of the third connecting member 63 is fixedly connected to the guardrail outer tube 53 or the guardrail inner tube 54. The second connecting member 62 is located between the first connecting member 61 and the third connecting member 63, connecting the first connecting member 61 and the third connecting member 63, and the first connecting member 61 and the second connecting member 62 are connected by a first rotating shaft 64, and the second connecting member 62 and the third connecting member 63 are connected by a second rotating shaft 65. In particular, the first rotating shaft 64 and the second rotating shaft 65 can be bolts, so that the bolts can play a connecting role in the first aspect, and the screw rods of the bolts can be used as rotating shafts in the second aspect. The extension direction of the first rotating shaft 64 and the extension direction of the second rotating shaft 65 are perpendicular to each other, so that the guardrail device 50 can rotate in four directions of "left" and "right" in the width direction of the vehicle body and "up" and "down" in the height direction of the vehicle body, and can adjust the direction and length according to the walking state of the rail vehicle 100 in the second state and the third state.

[0078] Furthermore, a plurality of pedal assemblies 10 are arranged in the same edge area, and the plurality of pedal assemblies 10 are arranged at intervals along the width direction of the vehicle body. The widths of the plurality of pedal assemblies in the same edge area can be adjusted according to actual conditions, and the widths of the plurality of pedal assemblies can be consistent or inconsistent. Such an arrangement can provide a larger walking area for personnel walking in the edge area, making it safer for personnel to straddle the vehicle. In addition, the plurality of pedal assemblies 10 are arranged at intervals, so that when the working trolley 70 straddles the vehicle, the walking track of the working trolley 70 is located in the space between the pedal assemblies 10, without affecting the working trolley 70 to perform straddling operations.

[0079] Furthermore, the rail vehicle 100 also includes a working trolley 70. At least two pedal assemblies 10 are arranged in each edge area. A channel is arranged between adjacent pedal assemblies 10. The working trolley 70 reciprocates between adjacent vehicle bodies through the channel.

[0080] In the embodiment of the present invention, two pedal assemblies 10 and a guardrail device 50 are arranged in the two edge areas. Such arrangement, on the one hand, makes the arrangement quantity of the pedal assemblies 10 more reasonable and wasteful, and can also increase the safety factor when people cross the vehicle and reduce safety hazards. On the other hand, it can also enable the working trolley 70 to smoothly cross the vehicle for operation without affecting the normal operation of the working trolley 70.

[0081] In the description of the embodiments of the present invention, it should be understood that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, or it can be indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The orientation or position relationship indicated by the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise precisely and specifically specified.

[0082] The terms "first", "second", "third", "fourth", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0083] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some or all of the technical features can be replaced by equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A rail vehicle, characterized in that: It comprises a pedal assembly and at least two sections of vehicle bodies, wherein the two ends of the vehicle bodies along the length direction respectively have vehicle ends, and the pedal assembly is located between two adjacent sections of the vehicle bodies and connects the two vehicle ends; There is an intermediate area between two adjacent vehicle ends, and the intermediate area includes a central area located in the center and two edge areas located on opposite sides of the central area along the width direction of the vehicle body; The pedal assembly is disposed in any one of the two edge regions, or the pedal assembly is disposed in both edge regions; The length of the pedal assembly in the length direction of the vehicle body is adjustable; The pedal assembly includes a fixed pedal seat, a connecting pedal and a sliding pedal seat arranged in sequence along the length direction of the vehicle body; the two vehicle ends include a first vehicle end and a second vehicle end; The first end of the fixed pedal seat is connected to the first vehicle end, the first end of the sliding pedal seat is connected to the second vehicle end, the first end of the connecting pedal is fixedly connected to the second end of the fixed pedal seat, and the second end of the connecting pedal is slidably connected to the second end of the sliding pedal seat.

2. The rail vehicle according to claim 1, characterized in that The second end of the sliding pedal seat is provided with a sliding groove, and the second end of the connecting pedal is provided with a sliding member, the sliding member is located in the sliding groove and reciprocates along the extension direction of the sliding groove; The extending direction of the slide groove is the length direction of the vehicle body.

3. The rail vehicle according to claim 2, characterized in that: A through hole is provided at the second end of the fixed pedal seat, and a first connecting component is provided at the first end of the connecting pedal; the first connecting component penetrates the through hole to connect the connecting pedal and the fixed pedal seat.

4. The rail vehicle according to claim 3, characterized in that: The first connecting assembly includes a connecting shaft, an anti-wear sleeve and a fastener, the anti-wear sleeve is sleeved on the connecting shaft, and the fastener is connected to the connecting shaft.

5. The rail vehicle according to any one of claims 1 to 3, characterized in that: A guardrail device is arranged between the first vehicle end and the second vehicle end, and the guardrail device is arranged on a side of the pedal assembly away from the central area.

6. The rail vehicle according to claim 5, characterized in that The guardrail device comprises a first connecting end, a second connecting end, a guardrail outer tube and a guardrail inner tube; The first connection end, the guardrail outer tube, the guardrail inner tube and the second connection end are connected end to end in sequence, the first connection end is connected to the first vehicle end, and the second connection end is connected to the second vehicle end; The guardrail outer tube is sleeved on the outside of the guardrail inner tube, and the guardrail outer tube is slidably connected to the guardrail inner tube. The guardrail outer tube is sleeved on the outside of the guardrail inner tube and slides back and forth along the length direction of the vehicle body.

7. The rail vehicle according to claim 6, characterized in that A second connection assembly is provided between one end of the first connection end and the first vehicle end, and / or between one end of the second connection end and the second vehicle end, wherein the second connection assembly includes a first connection member, a second connection member, and a third connection member connected in sequence; The first connecting member and the second connecting member are connected via a first rotating shaft, and the second connecting member and the third connecting member are connected via a second rotating shaft; An extending direction of the first rotating shaft and an extending direction of the second rotating shaft are perpendicular to each other.

8. The rail vehicle according to any one of claims 1 to 3, characterized in that: A plurality of pedal assemblies are arranged in the same edge area, and the plurality of pedal assemblies are arranged at intervals along the width direction of the vehicle body.

9. The rail vehicle according to any one of claims 1 to 3, characterized in that: It also includes a working trolley, each edge area is provided with at least two pedal assemblies, a channel is provided between adjacent pedal assemblies, and the working trolley reciprocates between adjacent vehicle bodies through the channel.

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