Railway vehicle marshalling lifting tool

Abstract

The utility model discloses a railway vehicle marshalling lifting tool, which relates to the technical field of railway vehicle marshalling, and comprises at least one lifting unit, the lifting unit comprises a lifting device and a buffer pad, the top of the lifting device is connected with a supporting block, and the buffer pad is fixedly connected to one end, far away from the lifting device, of the supporting block. The supporting block is used for supporting a car coupler or a windshield of the railway vehicle, the buffering cushion is of an elastic structure, and the lifting device ascends or descends to lift or lower the car coupler or the windshield of the railway vehicle; the buffer pad of the elastic structure can effectively absorb impact force generated when the coupler or the windshield is placed, the situation that the surface of the coupler or the windshield is scratched due to rigid contact is avoided, the grabbing force between the coupler or the windshield and the buffer pad is enhanced, the sliding risk is reduced, and the height of the coupler or the windshield is adjusted by controlling the lifting device to ascend or descend. The heights of couplers or windshields of two adjacent sections of railway vehicles in the marshalling coupling process of the railway vehicles are consistent, the couplers or the windshields can be connected conveniently, operation is easy, and use is convenient.

Description

Technical Field

[0001] This utility model relates to the field of rail vehicle formation technology, and in particular to a rail vehicle formation lifting fixture. Background Technology

[0002] During the coupling and assembling of rail vehicles, the couplers of every two rail vehicles need to be coupled together. During this operation, due to differences in coupler structure, some couplers in certain projects sag, causing the couplers of the two rail vehicles to not align properly. In existing technology, the couplers are generally suspended by slings, but it is difficult to select the sling lifting points. If other components of the rail vehicles are used for suspension, it may cause damage to those components. After the couplers are connected, the windshield sometimes also needs to be connected, which is usually done manually. Because the windshield itself is heavy, it often requires multiple people, increasing labor costs. For example, utility model patent CN221188536 U discloses a trailer hook lifting seat, including a lifting box with an open front end and a support arm. The lifting box contains a drive gear, a driven gear, and a lifting block. The drive gear and the driven gear are driven by a chain. A motor is located on the side wall of the lifting box. The motor is connected to the drive gear through a drive shaft. The lifting block is connected to the chain. The support arm includes a support sleeve connected to the lifting block. A support rod is located inside the support sleeve. The end of the support rod is provided with a connecting plate for fixing the trailer hook. The trailer hook and the connecting plate are connected by bolts. The height of the trailer hook is adjusted by driving the lifting block with the motor. The left and right positions of the trailer hook are adjusted by the support rod. However, this patent requires bolts to connect the trailer hook and the connecting plate. Rigid contact can easily cause the connecting plate to scratch the trailer hook. Bolt holes also need to be made on the trailer hook, which is complicated to operate. The spacing of bolt holes on different models of trailer hooks may be different, but the position of bolt holes on the connecting plate is specified, resulting in the trailer hook lifting seat being incompatible with the trailer hook and inconvenient to use. Utility Model Content

[0003] The purpose of this utility model is to provide a rail vehicle formation lifting fixture to solve the problems existing in the prior art, so that the rail vehicle formation lifting fixture is less likely to scratch the support device, and is simple to operate and convenient to use.

[0004] To achieve the above objectives, this utility model provides the following solution:

[0005] This utility model provides a rail vehicle train assembly lifting fixture, comprising: at least one lifting unit, the lifting unit including a lifting device and a buffer pad, the top of the lifting device being connected to a support block, the buffer pad being fixedly connected to the end of the support block away from the lifting device, the support block being used to support the coupler or windshield of the rail vehicle, the buffer pad being an elastic structure, and the lifting device being able to raise or lower the coupler or windshield of the rail vehicle when it rises or falls.

[0006] In some embodiments, the lifting device includes a first lifting device, which is a jack, and the support block is located on top of the jack.

[0007] In some embodiments, the lifting device further includes a second lifting device, which includes a main rod, a secondary rod, and a first connecting member. The first lifting device is fixedly connected to the top of the secondary rod. The main rod can be sleeved on the secondary rod. One of the main rod and the secondary rod has a plurality of first positioning holes arranged vertically, and the other has at least one second positioning hole arranged vertically. The secondary rod can move up and down within the main rod. The first connecting member can pass through the first positioning hole and the second positioning hole to define the relative position of the main rod and the secondary rod.

[0008] In some embodiments, the lifting device further includes a third lifting device, which includes a first connecting rod, a second connecting rod, a sleeve, a second connecting member, and a third connecting member. The first lifting device is fixedly connected to the top of the first connecting rod. One end of the sleeve can be fitted onto the end of the first connecting rod away from the first lifting device, and the other end of the sleeve can be fitted onto the second connecting rod. The first connecting rod has at least one third positioning hole arranged vertically, and the second connecting rod has at least one fourth positioning hole arranged vertically. The sleeve has multiple fifth positioning holes arranged vertically and distributed at both ends of the sleeve. The second connecting member can pass through the third positioning hole and the fifth positioning hole to define the relative position of the first connecting rod and the sleeve. The third connecting member can pass through the fourth positioning hole and the fifth positioning hole to define the relative position of the second connecting rod and the sleeve.

[0009] In some embodiments, the lifting unit further includes a movable base and rollers. The movable base is fixedly connected to the bottom wall of the lifting device, and the rollers are detachably connected to the bottom wall of the movable base. The rotation of the rollers can drive the lifting device to move.

[0010] In some embodiments, the rail vehicle train assembly lifting fixture further includes a base, and the lifting unit further includes a sliding seat. The sliding seat is fixedly connected to the bottom wall of the lifting device. The sliding seat has a first connecting groove, and the base has a second connecting groove. The extension direction of the first connecting groove forms an angle with the extension direction of the second connecting groove. The sliding seat can move on the base along the extension direction of the second connecting groove. The relative positions of the first connecting groove and the second connecting groove can be fixed by a fifth connecting member, thereby adjusting the position of the lifting device in the horizontal direction.

[0011] In some embodiments, the second connecting groove is provided in multiple ways along the extension direction of the base.

[0012] In some embodiments, the extension direction of the first connecting groove is perpendicular to the extension direction of the second connecting groove, and the sliding seat is movable on the base along the extension direction of the first connecting groove.

[0013] In some embodiments, the rail vehicle train assembly lifting fixture also includes reinforcing ribs, which are fixedly connected to the bottom of the lifting device and the top of the sliding seat, or the reinforcing ribs are fixedly connected to the bottom of the lifting device and the top of the sliding seat.

[0014] In some embodiments, three lifting units are provided and distributed sequentially in the horizontal direction.

[0015] The present invention achieves the following technical advantages over the prior art:

[0016] This utility model provides a lifting fixture for rail vehicle train assembly, including at least one lifting unit. The lifting unit includes a lifting device and a buffer pad. A support block is connected to the top of the lifting device, and the buffer pad is fixedly connected to the end of the support block away from the lifting device. The coupler or windshield is placed on the buffer pad. The elastic structure of the buffer pad can effectively absorb the impact force when the coupler or windshield is placed, avoiding scratches on the surface of the coupler or windshield due to rigid contact. Moreover, the elastic material usually has a good coefficient of friction, which can enhance the gripping force between the coupler or windshield and the buffer pad and reduce the risk of slippage. By controlling the lifting device to rise or fall to adjust the height of the coupler or windshield, the coupler or windshield height of adjacent rail vehicles is made consistent during the coupling of rail vehicles, which facilitates the connection of couplers or windshields. The operation is simple and convenient. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of the rail vehicle train assembly and lifting device in Embodiment 1 of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the rail vehicle formation lifting device in Embodiment 3 of this utility model;

[0020] Figure 3 for Figure 2 The front view;

[0021] Figure 4 for Figure 2 Top view;

[0022] Figure 5 This is a schematic diagram of the structure of the rail vehicle train assembly and lifting device in Embodiment 2 of this utility model;

[0023] Figure 6 This is a schematic diagram of the structure of the rail vehicle formation lifting device in Embodiment 4 of this utility model;

[0024] In the diagram: 1-Buffer pad, 2-Support block, 3-First lifting device, 4-Secondary rod, 5-Main rod, 6-Reinforcing rib, 7-Sliding seat, 8-Second positioning hole, 9-First positioning hole, 10-First connector, 11-First connecting rod, 12-Sleeve, 13-Second connecting rod, 14-Third positioning hole, 15-Fifth positioning hole, 16-Fourth positioning hole, 17-Moving seat, 18-Roller, 19-Base, 20-First connecting groove, 21-Second connecting groove. Detailed Implementation

[0025] 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. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] The purpose of this utility model is to provide a rail vehicle formation lifting fixture to solve the problems existing in the prior art, so that the rail vehicle formation lifting fixture is less likely to scratch the support device, and is simple to operate and convenient to use.

[0027] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] Example 1

[0029] This embodiment provides a rail vehicle train assembly and lifting fixture, such as... Figures 1-4As shown, the device includes at least one lifting unit, which comprises a lifting device and a buffer pad 1. A support block 2 is connected to the top of the lifting device. The buffer pad 1 is fixedly connected to the end of the support block 2 away from the lifting device. The support block 2 supports the coupler or windshield of the rail vehicle. The buffer pad 1 is an elastic structure. The lifting device can raise or lower the coupler or windshield of the rail vehicle by rising or falling. In use, the rail vehicle assembly lifting fixture is placed below the coupler or windshield of the rail vehicle, and the coupler or windshield is placed on the buffer pad 1. The height of the coupler or windshield is adjusted by controlling the lifting device to ensure that the coupler or windshield of adjacent rail vehicles are at the same height during the coupling process, facilitating the connection of the coupler or windshield. The operation is simple and convenient. Placing the coupler or windshield on the buffer pad 1, the elastic structure of the buffer pad 1 effectively absorbs the impact force when the coupler or windshield is placed, preventing scratches on the surface of the coupler or windshield due to rigid contact. Furthermore, the elastic material usually has a good coefficient of friction, which can enhance the grip between the coupler or windshield and the buffer pad, reducing the risk of slippage. Preferably, the material of the cushioning pad 1 is nylon.

[0030] It should be noted that the material of the buffer pad 1 in the rail vehicle formation lifting fixture provided by this utility model is not limited to that in the above embodiments. The buffer pad 1 can also be made of elastic materials such as rubber and silicone.

[0031] In another embodiment of this invention, the lifting device includes a first lifting device 3, which is a jack, with a support block 2 located on top of the jack. The jack can withstand a large weight and meet the load requirements of the rail vehicle coupler or windshield. Furthermore, the jack is relatively small in size, making it easy to transport and install.

[0032] In another embodiment of this invention, the lifting device further includes a second lifting device, which includes a main rod 5, a secondary rod 4, and a first connecting member 10. The first lifting device 3 is fixedly connected to the top of the secondary rod 4. The main rod 5 can be sleeved on the secondary rod 4. One of the main rod 5 and the secondary rod 4 has multiple first positioning holes 9 arranged vertically, and the other has at least one second positioning hole 8 arranged vertically. The secondary rod 4 can move up and down within the main rod 5. The first connecting member 10 can pass through the first positioning hole 9 and the second positioning hole 8 to define the relative position of the main rod 5 and the secondary rod 4. According to the height of the coupler or windshield of the rail vehicle on site, the secondary rod 4 is moved up and down within the main rod 5 to adjust the second lifting device to the corresponding height. At this time, the rail vehicle formation lifting fixture is slightly lower than the height of the coupler or windshield. The rail vehicle formation lifting fixture is placed below the coupler or windshield, and the coupler or windshield is raised by the first lifting device 3. The height of the first lifting device 3 is adjusted to fine-tune the height of the coupler or windshield, achieving more precise control.

[0033] In another embodiment of this invention, the rail vehicle formation lifting fixture further includes a base 19, and the lifting unit further includes a sliding seat 7. The sliding seat 7 is fixedly connected to the bottom wall of the lifting device. A first connecting groove 20 is provided on the sliding seat 7, and a second connecting groove 21 is provided on the base 19. The extending direction of the first connecting groove 20 forms an angle with the extending direction of the second connecting groove 21, and the extending direction of the second connecting groove 21 is parallel to the extending direction of the base 19. The sliding seat 7 can move on the base 19 along the extending direction of the second connecting groove 21. The relative position of the first connecting groove 20 and the second connecting groove 21 can be fixed by a fifth connector, thereby adjusting the position of the lifting device in the horizontal direction. In the absence of a ground trench, the base 19 can span across the rail, improving the stability of the rail vehicle formation lifting fixture. By providing the second connecting groove 21, the sliding seat 7 can move along the extending direction of the base 19. The relative position of the sliding seat 7 and the base 19 can be fixed by the fifth connector, thereby enabling position adjustment of the sliding seat 7 relative to the extending direction of the base 19, making the rail vehicle formation lifting fixture convenient to use.

[0034] In another embodiment of this invention, multiple second connecting slots 21 are provided along the extending direction of the base 19. This allows for a wider range of positional adjustment of the sliding seat 7 relative to the extending direction of the base 19, and multiple rail vehicle formation lifting fixtures can be slidably connected to the multiple second connecting slots 21, which can accommodate positional adjustments when multiple rail vehicle formation lifting fixtures are used simultaneously, making it more convenient to use.

[0035] In another embodiment of this invention, the extending direction of the first connecting groove 20 is perpendicular to the extending direction of the second connecting groove 21, and the sliding seat 7 can move on the base 19 along the extending direction of the first connecting groove 20. This allows the sliding seat 7 to move relative to the base 19 in a direction perpendicular to the extending direction of the base 19, enabling the rail vehicle formation lifting fixture to be adjusted in multiple directions in the horizontal direction, resulting in more precise alignment with the coupler or windshield.

[0036] In another embodiment of this invention, the rail vehicle formation lifting fixture further includes a reinforcing rib 6, which is fixedly connected to the bottom of the lifting device and the top of the sliding seat 7. This increases the connection strength between the bottom of the lifting device and the top of the sliding seat 7, thereby improving the stability of the rail vehicle formation lifting fixture.

[0037] Example 2

[0038] This embodiment provides a rail vehicle train assembly and lifting fixture, such as... Figures 5-6As shown, the device includes at least one lifting unit, which comprises a lifting device and a buffer pad 1. A support block 2 is connected to the top of the lifting device. The buffer pad 1 is fixedly connected to the end of the support block 2 away from the lifting device. The support block 2 supports the coupler or windshield of the rail vehicle. The buffer pad 1 is an elastic structure. The lifting device can raise or lower the coupler or windshield of the rail vehicle by rising or lowering. In use, the rail vehicle assembly lifting fixture is placed below the coupler or windshield of the rail vehicle, and the coupler or windshield is placed on the buffer pad 1. The height of the coupler or windshield is adjusted by controlling the lifting device to ensure that the coupler or windshield of adjacent rail vehicles are at the same height during the coupling process, facilitating the connection of the coupler or windshield. The elastic structure of the buffer pad 1 effectively absorbs the impact force when the coupler or windshield is placed, preventing scratches on the surface of the coupler or windshield due to rigid contact. Furthermore, the elastic material typically has a good coefficient of friction, which enhances the grip between the coupler or windshield and the buffer pad, reducing the risk of slippage. Preferably, the material of the cushioning pad 1 is nylon.

[0039] It should be noted that the material of the buffer pad 1 in the rail vehicle formation lifting fixture provided by this utility model is not limited to that in the above embodiments. The buffer pad 1 can also be made of elastic materials such as rubber and silicone.

[0040] In another embodiment of this invention, the lifting device includes a first lifting device 3, which is a jack, with a support block 2 located on top of the jack. The jack can withstand a large weight and meet the load requirements of the rail vehicle coupler or windshield. Furthermore, the jack is relatively small in size, making it easy to transport and install.

[0041] In another embodiment of this invention, the lifting device further includes a third lifting device, which includes a first connecting rod 11, a second connecting rod 13, a sleeve 12, a second connecting member, and a third connecting member. The first lifting device 3 is fixedly connected to the top of the first connecting rod 11. One end of the sleeve 12 can be fitted onto the end of the first connecting rod 11 away from the first lifting device 3, and the other end of the sleeve 12 can be fitted onto the second connecting rod 13. The first connecting rod 11 has at least one third positioning hole 14 arranged in the vertical direction, and the second connecting rod 13 has at least one fourth positioning hole 16 arranged in the vertical direction. The sleeve 12 has multiple fifth positioning holes 15 arranged in the vertical direction and distributed at both ends of the sleeve 12. The second connecting member can pass through the third positioning hole 14 and the fifth positioning hole 15 to define the relative position of the first connecting rod 11 and the sleeve 12, and the third connecting member can pass through the fourth positioning hole 16 and the fifth positioning hole 15 to define the relative position of the second connecting rod 13 and the sleeve 12. The first connecting rod 11, sleeve 12, and second connecting rod 13 are detachably connected in sequence. The height can be adjusted in two stages by cooperating with the second connecting piece through the third positioning hole 14 and the fifth positioning hole 15, and by cooperating with the third connecting piece through the fourth positioning hole 16 and the fifth positioning hole 15. This can adapt to usage scenarios where the height of the coupler or windshield is large when there is a pit, or when the coupler or windshield needs to be raised to a large height. Furthermore, the first connecting rod 11, sleeve 12, and second connecting rod 13 are detachably connected, making disassembly and assembly convenient, and facilitating transportation and storage.

[0042] In another embodiment of this invention, the lifting unit further includes a movable seat 17 and rollers 18. The movable seat 17 is fixedly connected to the bottom wall of the lifting device, and the rollers 18 are detachably connected to the bottom wall of the movable seat 17. The rotation of the rollers 18 can drive the lifting device to move. The detachable rollers 18 on the movable seat 17 facilitate the adjustment of the position of the rail vehicle marshalling lifting fixture relative to the coupler or windshield. Once the rail vehicle marshalling lifting fixture is adjusted to the appropriate position, the brakes on the rollers can be released to achieve positioning, making the rail vehicle marshalling lifting fixture more convenient to use.

[0043] In another embodiment of this embodiment, a first connecting groove 20 can be opened on the movable seat 17, and the roller 18 at the bottom of the movable seat 17 can be detachably connected, so that the movable seat 17 can move on the ground by means of the roller 18. Alternatively, after the roller 18 is removed, a movable connection can be formed between the lifting unit and the base 19 in the first embodiment on the base 19, and the fifth connector can be used for limiting.

[0044] In another embodiment of this invention, the rail vehicle formation lifting fixture also includes a reinforcing rib 6, which is fixedly connected to the bottom of the lifting device and the top of the movable seat 17. This increases the connection strength between the bottom of the lifting device and the top of the movable seat 17, thereby improving the stability of the rail vehicle formation lifting fixture.

[0045] Example 3

[0046] In another embodiment of this example, three lifting units are provided and arranged sequentially in the horizontal direction. In the case of a field without a pit, where both the coupler and the windshield need to be connected, the base 19 can be laid across the track, and the three lifting units of the first embodiment are arranged horizontally in sequence along the extension direction of the base 19. The relative positions of the three lifting units of the first embodiment with the coupler or the windshield are adjusted by the first connecting groove 20 and the second connecting groove 21, respectively. The middle lifting unit is located directly below the coupler and is used to support the coupler, while the lifting units on both sides are located directly below the windshield and are used to support the windshield. The simultaneous use of the three lifting units of the first embodiment can shorten the coupling time.

[0047] Example 4

[0048] This embodiment provides a rail vehicle train assembly lifting fixture, comprising three lifting units arranged sequentially in a horizontal direction. In applications with trenches, where both the coupler and windshield need to be connected, the three lifting units from Embodiment 2 are arranged horizontally in sequence along the direction perpendicular to the track extension. By pushing the lifting units to rotate the rollers 18, the relative positions of the three lifting units from Embodiment 2 with the coupler or windshield are adjusted. The middle lifting unit is located directly below the coupler to support it, while the two side lifting units are located directly below the windshields to support them as well. The simultaneous use of the three lifting units in Embodiment 2 shortens the coupling time.

[0049] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of ​​this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A hoisting fixture for assembling rail vehicles, characterized in that: include: At least one lifting unit, the lifting unit includes a lifting device and a buffer pad (1), the top of the lifting device is connected to a support block (2), the buffer pad (1) is fixedly connected to the end of the support block (2) away from the lifting device, the support block (2) is used to support the coupler or windshield of the rail vehicle, the buffer pad (1) is an elastic structure, the lifting device can raise or lower the coupler or windshield of the rail vehicle when it rises or falls.

2. The rail vehicle formation lifting fixture according to claim 1, characterized in that: The lifting device includes a first lifting device (3), which is a jack, and the support block (2) is located on top of the jack.

3. The rail vehicle formation lifting fixture according to claim 2, characterized in that: The lifting device further includes a second lifting device, which includes a main rod (5), a secondary rod (4) and a first connecting member (10). The first lifting device (3) is fixedly connected to the top of the secondary rod (4). The main rod (5) can be sleeved on the secondary rod (4). One of the main rod (5) and the secondary rod (4) has a plurality of first positioning holes (9) arranged in the vertical direction, and the other has at least one second positioning hole (8) arranged in the vertical direction. The secondary rod (4) can move up and down inside the main rod (5). The first connecting member (10) can pass through the first positioning hole (9) and the second positioning hole (8) to define the relative position of the main rod (5) and the secondary rod (4).

4. The rail vehicle formation lifting fixture according to claim 2, characterized in that: The lifting device further includes a third lifting device, which includes a first connecting rod (11), a second connecting rod (13), a sleeve (12), a second connecting member, and a third connecting member. The first lifting device (3) is fixedly connected to the top of the first connecting rod (11). One end of the sleeve (12) can be fitted onto the end of the first connecting rod (11) away from the first lifting device (3), and the other end of the sleeve (12) can be fitted onto the second connecting rod (13). The first connecting rod (11) has at least one third positioning hole (14) arranged vertically. The second connecting member... The rod (13) has at least one fourth positioning hole (16) arranged in the vertical direction, and the sleeve (12) has multiple fifth positioning holes (15). The fifth positioning holes (15) are arranged in the vertical direction and distributed at both ends of the sleeve (12). The second connecting member can pass through the third positioning hole (14) and the fifth positioning hole (15) to define the relative position of the first connecting rod (11) and the sleeve (12). The third connecting member can pass through the fourth positioning hole (16) and the fifth positioning hole (15) to define the relative position of the second connecting rod (13) and the sleeve (12).

5. The rail vehicle formation lifting fixture according to claim 1, characterized in that: The lifting unit also includes a movable seat (17) and a roller (18). The movable seat (17) is fixedly connected to the bottom wall of the lifting device, and the roller (18) is detachably connected to the bottom wall of the movable seat (17). The rotation of the roller (18) can drive the lifting device to move.

6. The rail vehicle formation lifting fixture according to claim 5, characterized in that: The lifting unit also includes a base (19) and a sliding seat (7). The sliding seat (7) is fixedly connected to the bottom wall of the lifting device. A first connecting groove (20) is provided on the sliding seat (7), and a second connecting groove (21) is provided on the base (19). The extension direction of the first connecting groove (20) and the extension direction of the second connecting groove (21) form an angle. The sliding seat (7) can move on the base (19) along the extension direction of the second connecting groove (21). The relative positions of the first connecting groove (20) and the second connecting groove (21) can be fixed by the fifth connecting member, thereby adjusting the position of the lifting device in the horizontal direction.

7. The rail vehicle formation lifting fixture according to claim 6, characterized in that: The second connecting groove (21) has multiple openings along the extension direction of the base (19).

8. The rail vehicle formation lifting fixture according to claim 6, characterized in that: The extension direction of the first connecting groove (20) is perpendicular to the extension direction of the second connecting groove (21), and the sliding seat (7) is able to move on the base (19) along the extension direction of the first connecting groove (20).

9. The rail vehicle formation lifting fixture according to claim 6, characterized in that: It also includes a reinforcing rib (6), which is fixedly connected to the bottom of the lifting device and the top of the movable seat (17), or the reinforcing rib (6) is fixedly connected to the bottom of the lifting device and the top of the sliding seat (7).

10. The rail vehicle formation lifting fixture according to claim 1, characterized in that: The lifting unit is provided in three parts and is distributed sequentially in the horizontal direction.

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