Connection mechanism of a road-rail vehicle and road-rail vehicle comprising it
By designing a detachable connection mechanism, the problem of inconvenient maintenance of the connection mechanism of dual-purpose road and rail vehicles is solved, and the structural strength and stability are improved, making it easier to replace and repair parts.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CRRC QIQIHAR ROLLING CO LTD
- Filing Date
- 2025-06-19
- Publication Date
- 2026-06-12
AI Technical Summary
The existing connection mechanism of dual-purpose road and rail vehicles is inconvenient to maintain due to welding connections, lacks relative independence between components, and is difficult to repair or replace conveniently.
Design a connection mechanism including a mounting base, a first connecting frame, a second connecting frame, and a third connecting frame. Through a combination of pin holes and connecting holes, the connection mechanism is detachable, facilitating connection and maintenance with the vehicle body.
It enables convenient disassembly and maintenance of the connection mechanism for dual-purpose road and rail vehicles, improves the stability and load-bearing capacity of the connection, enhances the structural strength, and facilitates independent replacement and repair of components.
Smart Images
Figure CN224348699U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of road-rail dual-purpose vehicle technology, specifically to a connection mechanism for road-rail dual-purpose vehicles and a road-rail dual-purpose vehicle having the same mechanism. Background Technology
[0002] A road-rail dual-purpose vehicle is a special type of transportation that can operate on both road and rail systems. This improves transportation efficiency and flexibility, especially for logistics environments that require frequent transfers between road and rail.
[0003] In existing technology, railway car bodies are connected to road car bodies via connecting mechanisms. These connecting mechanisms are welded to the road car bodies. While welding provides strong connection strength, it imposes excessive constraints on the two connecting structures, lacking relative independence between components. Repairing or replacing components requires damaging the welded joints, making maintenance inconvenient. Utility Model Content
[0004] The main purpose of this utility model is to provide a connection mechanism for a road-rail dual-purpose vehicle and a road-rail dual-purpose vehicle having the same, so as to solve the problem that the connection mechanism in the related technology is inconvenient to maintain.
[0005] To achieve the above objectives, according to one aspect of the present invention, a connection mechanism for a dual-purpose road-rail vehicle is provided, comprising: a mounting base; a first connecting frame disposed on the mounting base, wherein the first connecting frame is provided with a first pin hole portion and a strip-shaped connecting hole portion spaced apart along the vertical direction, the length direction of the strip-shaped connecting hole portion being parallel to the vertical direction; a second connecting frame disposed below the mounting base, wherein the second connecting frame is provided with a second pin hole portion; and a third connecting frame disposed on the mounting base, wherein the third connecting frame is provided with a third pin hole portion located above the second pin hole portion.
[0006] Furthermore, the first pin hole is located below the strip-shaped connecting hole.
[0007] Furthermore, the first connecting frame includes two first mounting plates spaced apart and a first connecting plate connected between the two first mounting plates. There are two first pin holes and two strip connecting holes. Each first mounting plate is provided with one first pin hole and one strip connecting hole. The fixing plate on the first vehicle body can be inserted between the two first mounting plates.
[0008] Furthermore, the mounting base is a connecting beam, and there are two first connecting frames, which are respectively set at both ends of the connecting beam.
[0009] Furthermore, the second connecting frame includes two second mounting plates and a second connecting plate connected between the two second mounting plates, and there are two second pin holes, which are respectively disposed on the two second mounting plates.
[0010] Furthermore, the third connecting frame is located between the first connecting frame and the second connecting frame.
[0011] Furthermore, the third connecting frame consists of multiple units spaced apart.
[0012] Furthermore, the third connecting bracket includes two third mounting plates, and the third pin hole portion includes two, with the two third pin holes respectively disposed on the two third mounting plates, and the length of the third mounting plate is greater than the width of the second mounting plate.
[0013] Furthermore, the third mounting plate includes a main body, a first connecting support plate, and a second connecting support plate. Both the first and second connecting support plates are connected to the main body. The first connecting support plate is connected to the top surface of the mounting base, and the second connecting support plate is connected to the side surface of the mounting base.
[0014] According to another aspect of the present invention, a dual-purpose road-rail vehicle is provided, comprising a first vehicle body, a second vehicle body, a first connecting member, a second connecting member, a driving member, a connecting rod, and a connecting mechanism for the dual-purpose road-rail vehicle. The connecting mechanism for the dual-purpose road-rail vehicle is the aforementioned connecting mechanism for dual-purpose road-rail vehicles. The first pin hole portion of the connecting mechanism for the dual-purpose road-rail vehicle is connected to the first vehicle body via the first connecting member. The strip-shaped connecting hole portion of the connecting mechanism for the dual-purpose road-rail vehicle is connected to the first vehicle body via the second connecting member. The second vehicle body is hingedly connected to a third connecting frame via a connecting rod. The first end of the driving member is hingedly connected to the third connecting frame of the connecting mechanism for the dual-purpose road-rail vehicle, and the second end of the driving member is hingedly connected to the second vehicle body.
[0015] The technical solution of this utility model provides a connecting mechanism for a dual-purpose road-rail vehicle, comprising a mounting base, a first connecting frame mounted on the mounting base, a second connecting frame positioned below the mounting base, and a third connecting frame mounted on the mounting base. The first connecting frame has a first pin hole and a strip-shaped connecting hole, spaced apart vertically, with the length of the strip-shaped connecting hole parallel to the vertical direction. Through this arrangement, a first connecting member can pass through the first pin hole to connect the mounting base and the first vehicle body; a second connecting member can pass through the strip-shaped connecting hole to connect the mounting base and the first vehicle body; a third connecting member can pass through the second pin hole to connect a connecting rod to the mounting base; and a fourth connecting member can pass through the third pin hole to connect a driving component to the mounting base. This allows the connecting mechanism of the dual-purpose road-rail vehicle to be detachably connected to the first vehicle body, facilitating maintenance of the connecting mechanism. The first pin hole not only facilitates the connection between the mounting base and the first car body, but also makes their relative positions more precise. It also improves the load-bearing capacity of the first connecting frame at the first pin hole, thereby enhancing the load-bearing capacity of the connecting mechanism in the dual-purpose road-rail vehicle. The strip-shaped connecting hole facilitates the positioning of the mounting base and the first car body during connection, making it easier for the connecting mechanism of the dual-purpose road-rail vehicle to connect to the first car body. Therefore, the technical solution of this application effectively solves the problem of inconvenient maintenance of the connecting mechanism in related technologies. Attached Figure Description
[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:
[0017] Figure 1 A perspective structural schematic diagram of an embodiment of the connection mechanism for a road-rail dual-purpose vehicle according to the present invention is shown;
[0018] Figure 2 A front view schematic diagram of an embodiment of a road-rail dual-purpose vehicle according to the present invention is shown;
[0019] Figure 3 It shows Figure 2 A partially enlarged schematic diagram of section A of an embodiment of a road-rail dual-purpose vehicle.
[0020] The above figures include the following reference numerals:
[0021] 10. Mounting base; 11. Connecting beam; 20. First connecting frame; 21. First pin hole; 22. Strip connecting hole; 23. First mounting plate; 24. First connecting plate; 30. Second connecting frame; 31. Second pin hole; 32. Second mounting plate; 33. Second connecting plate; 40. Third connecting frame; 41. Third pin hole; 42. Third mounting plate; 421. Main body; 422. First connecting support plate; 423. Second connecting support plate; 100. First vehicle body; 101. Fixing plate; 110. Second vehicle body; 120. First connecting piece; 130. Second connecting piece; 140. Driving component; 150. Connecting rod; 160. Third connecting piece; 170. Fourth connecting piece. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0023] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0024] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.
[0025] like Figures 1 to 3As shown, the connecting mechanism of the dual-purpose road-rail vehicle in this embodiment includes: a mounting base 10, a first connecting frame 20, a second connecting frame 30, and a third connecting frame 40. The first connecting frame 20 is disposed on the mounting base 10, and has first pin holes 21 and strip-shaped connecting holes 22 spaced apart along the vertical direction. The length direction of the strip-shaped connecting holes 22 is parallel to the vertical direction. The second connecting frame 30 is disposed below the mounting base 10, and has second pin holes 31. The third connecting frame 40 is disposed on the mounting base 10, and has third pin holes 41 located above the second pin holes 31.
[0026] Applying the technical solution of this embodiment, the connection mechanism of the dual-purpose road-rail vehicle includes a mounting base 10, a first connecting frame 20 disposed on the mounting base 10, a second connecting frame 30 disposed below the mounting base 10, and a third connecting frame 40 disposed on the mounting base 10. The first connecting frame 20 is provided with a first pin hole portion 21 and a strip-shaped connecting hole portion 22, which are spaced apart in the vertical direction, and the length direction of the strip-shaped connecting hole portion 22 is parallel to the vertical direction. With the above configuration, the first connector 120 can pass through the first pin hole 21 to connect the mounting base 10 and the first car body 100; the second connector 130 can pass through the strip-shaped connecting hole 22 to connect the mounting base 10 and the first car body 100; the third connector 160 can pass through the second pin hole 31 to connect the connecting rod 150 and the mounting base 10; and the fourth connector 170 can pass through the third pin hole 41 to connect the drive component 140 and the mounting base 10. This allows the connecting mechanism of the dual-purpose road-rail vehicle to be detachably connected to the first car body 100, making the connecting mechanism of the dual-purpose road-rail vehicle easier to maintain. The first pin hole 21 not only facilitates the connection between the mounting base 10 and the first car body 100 but also makes the relative position between the mounting base 10 and the first car body 100 more precise. It also improves the load-bearing capacity of the first connecting frame 20 at the first pin hole 21, thereby improving the load-bearing capacity of the connecting mechanism of the dual-purpose road-rail vehicle. The strip-shaped connecting hole 22 facilitates the positioning of the mounting base 10 and the first car body 100 when connecting them, making it easier for the connecting mechanism of the dual-purpose road-rail vehicle to connect to the first car body 100. Therefore, the technical solution of this embodiment effectively solves the problem of inconvenient maintenance of the connecting mechanism in related technologies.
[0027] like Figure 1 As shown, in this embodiment, the first pin hole 21 is located below the strip-shaped connecting hole 22. This arrangement improves the load-bearing capacity of the first connecting bracket 20.
[0028] like Figure 1As shown, in this embodiment, the first connecting frame 20 includes two first mounting plates 23 spaced apart and a first connecting plate 24 connected between the two first mounting plates 23. There are two first pin holes 21 and two strip-shaped connecting holes 22. Each first mounting plate 23 has one first pin hole 21 and one strip-shaped connecting hole 22. The fixing plate 101 on the first vehicle body 100 can be inserted between the two first mounting plates 23. The first connecting plate 24 can connect the two first mounting plates 23. The arrangement of the two first mounting plates 23 facilitates the insertion of the fixing plate 101 on the first vehicle body 100 into the first connecting frame 20, facilitating the connection between the first connecting frame 20 and the first vehicle body 100, and making the connection between the first connecting frame 20 and the first vehicle body 100 more stable.
[0029] like Figure 1 As shown, in this embodiment, the mounting base 10 is a connecting beam 11, and there are two first connecting frames 20, which are respectively disposed at both ends of the connecting beam 11. The placement of two first connecting frames 20 at both ends of the connecting beam 11 improves the structural strength and load-bearing capacity of the connecting mechanism of the dual-purpose road-rail vehicle, thereby making the connection between the connecting mechanism and the first vehicle body 100 more stable.
[0030] like Figure 1 As shown, in this embodiment, the second connecting frame 30 includes two second mounting plates 32 and a second connecting plate 33 connected between the two second mounting plates 32. There are two second pin holes 31, each disposed on one of the two second mounting plates 32. The second connecting plate 33 connects the two second mounting plates 32, thus improving the structural strength of the second connecting frame 30. Each second mounting plate 32 has one second pin hole 31, making the connection between the connecting rod 150 and the second connecting frame 30 more stable.
[0031] The second mounting plate 32 has a groove, and the connecting beam is located in the groove.
[0032] The second connecting bracket 30 also includes a third connecting plate, which is connected to both second mounting plates, and the top surface of the third connecting plate is connected to the second connecting plate.
[0033] like Figure 1 As shown, in this embodiment, the third connecting frame 40 is located between the first connecting frame 20 and the second connecting frame 30. This makes the arrangement of the first connecting frame 20, the second connecting frame 30 and the third connecting frame 40 more reasonable, which is beneficial to improving the structural strength of the connecting mechanism of the dual-purpose road-rail vehicle.
[0034] like Figure 1As shown, in this embodiment, there are multiple third connecting frames 40 arranged at intervals. Providing multiple third connecting frames 40 facilitates a one-to-one correspondence between the multiple third connecting frames 40 and the multiple driving components 140, thereby reducing the pressure borne by each driving component 140.
[0035] like Figure 1 As shown, in this embodiment, the third connecting frame 40 includes two third mounting plates 42, and two third pin holes 41 are respectively disposed on the two third mounting plates 42. In the width direction of the mounting base 10, the third pin hole 41, the second pin hole 31, and the first pin hole 21 are arranged sequentially. The two third mounting plates 42 improve the connection stability between the drive member 140 and the connection mechanism of the dual-purpose road-rail vehicle. The sequential arrangement of the third pin hole 41, the second pin hole 31, and the first pin hole 21 in the width direction of the mounting base 10 makes the third pin hole 41 further away from the mounting base 10 than the second pin hole 31 and the first pin hole 21, resulting in a more rational connection structure between the drive member 140, the second vehicle body 110, and the connecting rod 150.
[0036] like Figure 1 As shown, in this embodiment, the third mounting plate 42 includes a main body 421, a first connecting support plate 422, and a second connecting support plate 423. Both the first connecting support plate 422 and the second connecting support plate 423 are connected to the main body 421. The first connecting support plate 422 is connected to the top surface of the mounting base 10, and the second connecting support plate 423 is connected to the side surface of the mounting base 10. The main body 421, the first connecting support plate 422, and the second connecting support plate 423 increase the contact area between the third mounting plate 42 and the mounting base 10, thereby improving the connection strength between the third mounting plate 42 and the mounting base 10, and thus making the connection between the connection mechanism of the dual-purpose road-rail vehicle and the drive component 140 more stable.
[0037] In this embodiment, the axes of the first pin hole 21, the second pin hole 31, and the third pin hole 41 form a triangular structure. The axes of the strip connecting hole 22, the second pin hole 31, and the third pin hole 41 also form a triangular structure. The structure is compact, which makes the connection mechanism of the dual-purpose road and rail vehicle reasonably subjected to force and forms a stable force transmission path.
[0038] The first connecting frame 20 and the second connecting frame 30 are both welded structures, and are welded to the mounting base 10 after welding. The third connecting frame 40 is welded to the mounting base.
[0039] like Figure 2 and Figure 3As shown, the dual-purpose road-rail vehicle of this embodiment includes a first car body 100, a second car body 110, a first connecting member 120, a second connecting member 130, a drive member 140, a connecting rod 150, and a connection mechanism for the dual-purpose road-rail vehicle. The connection mechanism for the dual-purpose road-rail vehicle is the one described above. The first pin hole portion 21 of the connection mechanism is connected to the first car body 100 through the first connecting member 120. The strip-shaped connecting hole portion 22 of the connection mechanism is connected to the first car body 100 through the second connecting member 130. The second car body 110 is hinged to the third connecting frame 40 through the connecting rod 150. The first end of the drive member 140 is hinged to the third connecting frame 40 of the connection mechanism, and the second end of the drive member 140 is hinged to the second car body 110. The first connecting member 120 can connect the first connecting frame to the first car body 100, and the second connecting member 130 can connect the second connecting frame to the second car body 110. The two ends of the drive component 140 are hinged to the third connecting frame and the second car body 110, respectively, thus connecting the connecting mechanism of the dual-purpose road-rail vehicle to the second car body 110. The connecting rod 150 connects the second car body 110 to the third connecting frame, making the connection stability between the second car body 110 and the connecting mechanism of the dual-purpose road-rail vehicle better, and facilitating the drive component 140 to move the second car body 110 relative to the first car body 100. When the connecting mechanism of the dual-purpose road-rail vehicle is connected to the first car body 100 and the second car body 110, the first connecting member 120 can pass through the first pin hole 21 to connect the mounting base 10 and the first car body 100, the second connecting member 130 can pass through the strip-shaped connecting hole 22 to connect the mounting base 10 and the first car body 100, the third connecting member 160 can pass through the second pin hole 31 to connect the connecting rod 150 and the mounting base 10, and the fourth connecting member 170 can pass through the third pin hole 41 to connect the driving member 140 and the mounting base 10. This allows the connecting mechanism of the dual-purpose road-rail vehicle to be detachably connected to the first car body 100, making the connecting mechanism of the dual-purpose road-rail vehicle easy to maintain. The dual-purpose road-rail vehicle with the above-mentioned connecting mechanism also has the above-mentioned advantages.
[0040] The dual-purpose road and rail vehicle also includes a third connecting member 160 and a fourth connecting member 170. One end of the connecting rod 150 is connected to the second car body 110 through a third connecting member 160, and the other end of the connecting rod 150 is connected to the second pin hole 31 through a third connecting member 160. One end of the driving member 140 is connected to the second car body 110 through a fourth connecting member 170, and the other end of the driving member 140 is connected to the third pin hole 41 through a fourth connecting member 170.
[0041] The second car body 110 includes two that are spaced apart along the length of the first car body 100, and both second car bodies 110 are connected to the first car body 100 through a connection mechanism for dual-purpose road and rail vehicles.
[0042] The first car body 100 is used for road travel, and the second car body 110 is used for railway travel.
[0043] The first connecting member 120, the second connecting member 130, the third connecting member 160, and the fourth connecting member 170 can be pins. The first connecting member 120, the second connecting member 130, the third connecting member 160, and the fourth connecting member 170 facilitate the connection between the connecting mechanism of the dual-purpose road-rail vehicle and the first car body 100 and the second car body 110, and also facilitate the maintenance of the connecting mechanism of the dual-purpose road-rail vehicle.
[0044] The dual-purpose road-rail vehicle in this embodiment can be an excavator, a crane, or a transport vehicle; of course, it can also be other vehicles.
[0045] In the description of this utility model, it should be understood that "multiple" means two or more. Directional terms such as "front, back, up, down, left, right," "horizontal, vertical, perpendicular, horizontal," and "top, bottom" indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are used solely for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner or outer contours relative to the outline of each component itself.
[0046] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.
[0047] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.
[0048] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A connecting mechanism for a dual-purpose road-rail vehicle, characterized in that, include: Mounting base (10); A first connecting frame (20) is disposed on the mounting base (10). The first connecting frame (20) is provided with a first pin hole (21) and a strip-shaped connecting hole (22) spaced apart along the vertical direction. The length direction of the strip-shaped connecting hole (22) is parallel to the vertical direction. The second connecting bracket (30) is disposed below the mounting base (10), and the second connecting bracket (30) is provided with a second pin hole (31); A third connecting bracket (40) is disposed on the mounting base (10), and a third pin hole (41) is provided on the third connecting bracket (40), which is located above the second pin hole (31).
2. The connecting mechanism for dual-purpose road and rail vehicles according to claim 1, characterized in that, The first pin hole (21) is located below the strip-shaped connecting hole (22).
3. The connecting mechanism for dual-purpose road and rail vehicles according to claim 1 or 2, characterized in that, The first connecting frame (20) includes two first mounting plates (23) spaced apart and a first connecting plate (24) connected between the two first mounting plates (23). There are two first pin holes (21) and two strip connecting holes (22). Each first mounting plate (23) is provided with one first pin hole (21) and one strip connecting hole (22). The fixing plate (101) on the first vehicle body (100) can be inserted between the two first mounting plates (23).
4. The connecting mechanism for dual-purpose road and rail vehicles according to claim 1 or 2, characterized in that, The mounting base (10) is a connecting beam (11), and there are two first connecting frames (20), which are respectively located at both ends of the connecting beam (11).
5. The connecting mechanism for dual-purpose road and rail vehicles according to claim 1 or 2, characterized in that, The second connecting frame (30) includes two second mounting plates (32) and a second connecting plate (33) connected between the two second mounting plates (32). There are two second pin holes (31), and the two second pin holes (31) are respectively disposed on the two second mounting plates (32).
6. The connecting mechanism for dual-purpose road and rail vehicles according to claim 5, characterized in that, The third connecting frame (40) is located between the first connecting frame (20) and the second connecting frame (30).
7. The connecting mechanism for dual-purpose road and rail vehicles according to claim 5, characterized in that, The third connecting frame (40) consists of multiple frames spaced apart.
8. The connecting mechanism for dual-purpose road and rail vehicles according to claim 5, characterized in that, The third connecting frame (40) includes two third mounting plates (42), and the third pin hole (41) includes two parts. The two third pin holes (41) are respectively disposed on the two third mounting plates (42). The length of the third mounting plate (42) is greater than the width of the second mounting plate (32).
9. The connecting mechanism for dual-purpose road and rail vehicles according to claim 8, characterized in that, The third mounting plate (42) includes a main body (421), a first connecting support plate (422) and a second connecting support plate (423). The first connecting support plate (422) and the second connecting support plate (423) are both connected to the main body (421). The first connecting support plate (422) is connected to the top surface of the mounting base (10), and the second connecting support plate (423) is connected to the side surface of the mounting base (10).
10. A dual-purpose road-rail vehicle, comprising a first car body (100), a second car body (110), a first connecting member (120), a second connecting member (130), a driving member (140), a connecting rod (150), and a connecting mechanism for the dual-purpose road-rail vehicle, characterized in that, The connecting mechanism of the dual-purpose road-rail vehicle is the connecting mechanism of the dual-purpose road-rail vehicle as described in any one of claims 1 to 9. The first pin hole portion (21) of the connecting mechanism of the dual-purpose road-rail vehicle is connected to the first vehicle body (100) through the first connecting member (120). The strip-shaped connecting hole portion (22) of the connecting mechanism of the dual-purpose road-rail vehicle is connected to the first vehicle body (100) through the second connecting member (130). The second vehicle body (110) is hinged to the third connecting frame (40) through the connecting rod (150). The first end of the driving member (140) is hinged to the third connecting frame (40) of the connecting mechanism of the dual-purpose road-rail vehicle. The second end of the driving member (140) is hinged to the second vehicle body (110).