A support device for laying long rail on a large slope

Abstract

The present invention provides a support device for laying long rails on large slopes, belonging to the technical field of rail laying. It includes two bottom shells, and the two bottom shells are placed on a base. A support mechanism is arranged on the bottom shell, and the side surface of the bottom shell is attached to the vertical surface of the concrete sleeper. By setting the support mechanism, a round roller and a limit block are installed on the support mechanism. When it is necessary to remove the support mechanism, only need to pull the pull rope. The pulling of the pull rope will cause the round roller to tilt downward through the rotating assembly. In this way, the friction between the round roller and the long rail will be significantly reduced. At the same time, the limit block will also contract inward, effectively avoiding the situation of jamming between the limit block and the long rail. Under the dual effects of the above-mentioned reduction of friction and elimination of the risk of jamming, by continuously pulling the pull rope, it is possible to easily pull out the adjacent two support mechanisms from the bottom of the long rail, making the whole operation process more simple and efficient.

Description

Technical Field

[0001] The present invention relates to the technical field of rail laying, and particularly relates to a support device for laying long rails on a large slope. Background Art

[0002] A large slope refers to a track section with a slope exceeding 6‰. Due to its large slope, when laying rails in such areas, long rails are usually used for operation. A long rail is a railway track component that is significantly longer than an ordinary rail, and its laying process has strict specifications. Before laying, the pouring and installation of the base and concrete sleepers need to be completed first. After the base and concrete sleepers are built, a tractor is used to tow the long rail to the top of the concrete sleeper. Before the long rail contacts the concrete sleeper, a support mechanism needs to be pre-placed at the concrete sleeper. The long rail first contacts the support mechanism and can roll on the support mechanism, which helps the smooth towing of the long rail. When the long rail is towed in place, the support mechanism is taken out from under the long rail, and then the long rail is fixed to the concrete sleeper, thus completing the laying work.

[0003] The support mechanism is equipped with a limit ring, whose function is to effectively prevent the long rail from detaching from the support mechanism during the laying process. During actual laying, the long rail is tightly pressed on the support mechanism, and there is a large frictional force between the two. When the support mechanism needs to be taken out, due to the large self-weight of the long rail, the long rail must be lifted upward first to create enough space to smoothly extract the support mechanism. However, the long rail itself is quite heavy, and this operation requires a lot of effort, posing high requirements for the physical strength and operation skills of the construction workers. From the perspective of construction convenience, there is a need for further optimization in the convenience of taking out the support mechanism. Therefore, the present application provides a support device for laying long rails on a large slope to meet the demand. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a support device for laying long rails on a large slope to solve the problem that the convenience of taking out the existing support mechanism needs to be improved.

[0005] To solve the above technical problem, the present invention provides the following technical solutions:

[0006] A support device for laying long rails on a large slope, comprising:

[0007] Two bottom shells, the two bottom shells are placed on the base, a support mechanism is arranged on the bottom shell, the side surface of the bottom shell is attached to the vertical surface of the concrete sleeper, the support mechanism includes a round roller and adjusting components and rotating components on both sides of the round roller, the round roller is arranged above the bottom shell, a limiting ring is fixed on the circumferential surface of the round roller, the rotating component includes a rotating seat fixed on the top of the bottom shell, a plug rod is rotatably connected to the rotating seat, the plug rod is rotatably connected to the round roller through a bearing, the adjusting component is arranged on the side of the round roller away from the plug rod, the adjusting component includes an adjusting block arranged inside the round roller, a support rod is fixed at the end of the adjusting block, a through groove communicating with the inside of the bottom shell is opened on the top of the bottom shell, the surface of the support block is slidably connected to the inner wall of the through groove, a support block is fixed on the inner wall of the bottom shell, and the support rod abuts against the top of the support block.

[0008] Optionally, a connecting block is fixed on the inner wall of one end of the round roller away from the plug rod, a round groove is opened at one end of the connecting block away from the plug rod, the adjusting block is rotatably connected to the inner wall of the round groove, a plurality of T-shaped grooves are opened at one end of the connecting block away from the plug rod, a T-shaped block is slidably connected to the inner wall of the T-shaped groove, an inner spring is fixed on one side of the T-shaped block facing the center of the round roller, the inner spring is fixed to the inner wall of the T-shaped groove, a limiting block is fixed at one end of the T-shaped block away from the plug rod, the surface of the limiting block is slidably connected to the surface of the round roller, an adjusting surface is arranged on the surface of the adjusting block, and the end of the limiting block is slidably connected to the surface of the adjusting surface.

[0009] Optionally, a support surface and an inclined surface are sequentially connected on the top of the support block, and the bottom of the support rod is slidably connected to the top of the support surface.

[0010] Optionally, a vertical plate is fixed on the top of the bottom shell, an outer spring is fixed on one side of the vertical plate close to the support rod, and the end of the outer spring is movably connected to the surface of the support rod.

[0011] Optionally, a pressing rod movably penetrates through the inner wall of the bottom shell, one end of the pressing rod abuts against the side surface of the support rod, a limiting plate is fixed at the other end of the pressing rod, the side surface of the limiting plate is attached to the side surface of the bottom shell, a pull rope is fixed on one side of the limiting plate away from the bottom shell, a square block is fixed between adjacent pull ropes, the square block is placed on the top of the base, and a handle is fixed on the side surface of the square block.

[0012] Optionally, a positioning component is arranged on the side of the rotating seat away from the round roller, the positioning component includes a positioning block fixed on the side surface of the rotating seat, a positioning surface is arranged on the side surface of the positioning block, and the positioning surface is attached to the curved surface of the concrete sleeper.

[0013] Optionally, a positioning tube and a positioning pin are respectively fixed on the opposite surfaces of the two positioning blocks, and an arc surface is arranged at the end of the positioning pin.

[0014] Optionally, both the positioning tube and the positioning pin are elliptical.

[0015] Optionally, a round hole is opened at the end of the positioning block, and two round rods are fixed to the side of the block. When the bottom shell is in the storage state, the round rods are inserted into the round hole.

[0016] Optionally, the round rod and the round hole are both arranged to be inclined upward.

[0017] Compared with the prior art, the present invention has at least the following beneficial effects:

[0018] In the above scheme, a supporting mechanism is provided on which a round roller and a limit block are installed. When the supporting mechanism needs to be taken out, it is only necessary to pull the pull rope. The pulling of the pull rope will cause the round roller to tilt downward through the rotating assembly. In this way, the friction between the round roller and the long rail will be significantly reduced. At the same time, the limit block will also shrink inward, effectively avoiding the jamming between the limit block and the long rail. Under the dual effects of reducing the friction and eliminating the risk of jamming, it is only necessary to continuously pull the pull rope to easily pull the two adjacent supporting mechanisms out from the bottom of the long rail, and the entire operation process becomes simpler and more efficient.

[0019] By setting the positioning components, the positioning surface of the positioning block can fit tightly with the curved surface of the concrete sleeper. After the two fit together, the bottom shell is placed accurately and there is no need to repeatedly adjust the position of the bottom shell, which greatly improves the convenience of installation, effectively shortens the construction time, and improves laying efficiency.

[0020] By setting the positioning tube and the positioning pin, when the supporting mechanism is finished using, the positioning pin can be accurately inserted into the positioning tube. Both the positioning tube and the positioning pin are designed in an elliptical shape. This shape structure can effectively prevent relative rotation between the two, and the two adjacent supporting mechanisms can be firmly placed together. The next time you use it, you only need to simply open the two supporting mechanisms, which is very convenient to operate. In addition, the positioning tube also serves as a handle. When carrying the supporting mechanism, the positioning tube can be used to apply force to effectively reduce the burden of carrying and make the carrying process more labor-saving.

[0021] By setting up the round hole and the round rod, after the positioning pin is inserted into the positioning tube, the round rod is then inserted into the round hole. This operation can effectively prevent the two positioning blocks from separating, thereby significantly enhancing the stability of the support mechanism during placement. It is worth noting that the round hole and the round rod are both arranged to be inclined upward. Due to the effect of gravity, the round rod is difficult to separate from the round hole under this inclined structure, thereby further improving the stability of the support mechanism during placement, ensuring that it can be firmly placed even when not in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, further serve to explain the principles of the invention and to enable those skilled in the relevant art to make and use the invention.

[0023] Figure 1 Schematic diagram of the overall three-dimensional structure of the present invention;

[0024] Figure 2 Schematic diagram of the three-dimensional structure at the concrete sleeper of the present invention;

[0025] Figure 3 Schematic diagram of the three-dimensional structure at the support mechanism of the present invention;

[0026] Figure 4 Cross-sectional view at the round roller of the present invention;

[0027] Figure 5 Schematic diagram of the three-dimensional structure at the T-shaped block of the present invention;

[0028] Figure 6 Schematic diagram of the three-dimensional structure at the adjusting block of the present invention;

[0029] Figure 7 Schematic diagram of the three-dimensional structure at the support block of the present invention;

[0030] Figure 8 Schematic diagram of the three-dimensional structure at the limiting block of the present invention;

[0031] Figure 9 Schematic diagram of the three-dimensional structure at the positioning block of the present invention;

[0032] Figure 10 Schematic diagram of the three-dimensional structure at the handle of the present invention.

[0033] In the figure: 1, base; 2, concrete sleeper; 3, curved surface; 4, vertical surface; 5, bottom shell; 6, support mechanism; 7, round roller; 8, limiting ring; 9, adjusting assembly; 10, connecting block; 11, round groove; 12, adjusting block; 13, adjusting surface; 14, T-shaped groove; 15, T-shaped block; 16, limiting block; 17, inner spring; 18, support rod; 19, support block; 20, support surface; 21, inclined surface; 22, through groove; 23, extrusion rod; 24, rotating assembly; 25, rotating seat; 26, inserting rod; 27, vertical plate; 28, outer spring; 29, pulling rope; 30, square block; 31, handle; 32, positioning assembly; 33, positioning block; 34, positioning surface; 35, round hole; 36, round rod; 37, positioning tube; 38, positioning pin; 39, limiting plate.

[0034] As shown in the figure, in order to clearly implement the structure of the embodiments of the present invention, specific structures and devices are marked in the figure, but this is only for schematic needs and is not intended to limit the present invention to this specific structure, device and environment. Those of ordinary skill in the art can adjust or modify these devices and environments according to specific needs. Detailed implementation manners

[0035] The following will combine the accompanying drawings and specific embodiments to describe in detail a support device for laying long steel rails on a large slope provided by the present invention. At the same time, it should be noted here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments. For some well-known technologies, those skilled in the art can also adopt other alternative methods for implementation; moreover, the accompanying drawings are only for more specifically describing the embodiments, and are not intended to specifically limit the present invention.

[0036] It should be noted that in the specification, when referring to "an embodiment", "embodiment", "exemplary embodiment", "some embodiments", etc., it indicates that the described embodiment may include specific features, structures or characteristics, but not necessarily every embodiment includes such specific features, structures or characteristics. Additionally, when combining an embodiment to describe a specific feature, structure or characteristic, implementing such feature, structure or characteristic in combination with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the relevant art.

[0037] Generally, terms can be understood at least in part from their use in the context. For example, at least in part depending on the context, the term "one or more" used herein can be used to describe any feature, structure or characteristic in a singular sense, or can be used to describe a combination of features, structures or characteristics in a plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey a set of exclusive factors, but rather, at least in part depending on the context, can allow for the existence of other factors that may not be explicitly described.

[0038] It can be understood that the meanings of "on...", "above...", and "over..." in the present invention should be interpreted in the broadest manner, such that "on..." not only means "directly on" something, but also includes the meaning of being "on" something with intervening features or layers therebetween, and "above..." or "over..." not only means "above" or "over" something, but also can include the meaning of being "above" or "over" something with no intervening features or layers therebetween.

[0039] Furthermore, spatial relative terms such as "under...", "below...", "lower part", "above...", "upper part", etc. are used herein for convenience of description to describe the relationship between one element or feature and another or more elements or features, as shown in the accompanying drawings. The spatial relative terms are intended to cover different orientations in the use or operation of the device in addition to the orientation depicted in the accompanying drawings. The device can be oriented in other ways, and the spatial relative descriptive terms used herein can be similarly interpreted accordingly.

[0040] As Figures 1 to 10 shown, an embodiment of the present invention provides a support device for laying long steel rails on a large slope, including:

[0041] Two bottom shells 5 are placed on the base 1. A support mechanism 6 is provided on the bottom shell 5. The side surface of the bottom shell 5 is attached to the vertical surface 4 of the concrete sleeper 2. The support mechanism 6 includes a round roller 7, and adjusting components 9 and rotating components 24 on both sides of the round roller 7. The round roller 7 is arranged above the bottom shell 5. A limiting ring 8 is fixed on the circumferential surface of the round roller 7. The rotating component 24 includes a rotating seat 25 fixed on the top of the bottom shell 5. A plug rod 26 is rotatably connected to the rotating seat 25. The plug rod 26 is rotatably connected to the round roller 7 through a bearing. The adjusting component 9 is arranged on the side of the round roller 7 away from the plug rod 26. The adjusting component 9 includes an adjusting block 12 arranged inside the round roller 7. A support rod 18 is fixed at the end of the adjusting block 12. A through groove 22 communicating with the inside of the bottom shell 5 is opened on the top of the bottom shell 5. The surface of a support block 19 is slidably connected to the inner wall of the through groove 22. The support block 19 is fixed on the inner wall of the bottom shell 5. The support rod 18 abuts against the top of the support block 19.

[0042] As Figure 4 shown, a connecting block 10 is fixed on the inner wall of the end of the round roller 7 away from the plug rod 26. A round groove 11 is opened at the end of the connecting block 10 away from the plug rod 26. The adjusting block 12 is rotatably connected to the inner wall of the round groove 11. A plurality of T-shaped grooves 14 are opened at the end of the connecting block 10 away from the plug rod 26. A T-shaped block 15 is slidably connected to the inner wall of the T-shaped groove 14. An inner spring 17 is fixed on the side of the T-shaped block 15 facing the center of the round roller 7. The inner spring 17 is fixed to the inner wall of the T-shaped groove 14. A limiting block 16 is fixed at the end of the T-shaped block 15 away from the plug rod 26. The surface of the limiting block 16 is slidably connected to the surface of the round roller 7. An adjusting surface 13 is arranged on the surface of the adjusting block 12. The end of the limiting block 16 is slidably connected to the surface of the adjusting surface 13. During the traction of the rail, the limiting block 16 can play an auxiliary limiting role to enhance the stability of the rail on the round roller 7; when the support mechanism 6 is taken out, the limiting block 16 can contract inward, effectively avoiding jamming with the rail and creating favorable conditions for the smooth removal of the support mechanism 6. The highest point of the limiting ring 8 is higher than the highest point of the limiting block 16. The limiting ring 8 can come into contact with the long rail first. Through the positioning between the limiting ring 8 and the long rail first, and then the long rail falls on the round roller 7. At this time, the long rail is limited by both the limiting ring 8 and the limiting block 16.

[0043] As Figure 7As shown in the figure, a support surface 20 and an inclined surface 21 are successively connected to the top of the support block 19. The bottom of the support rod 18 is slidably connected to the top of the support surface 20. In the normal working state of supporting the rail, the support rod 18 stays steadily on the support surface 20, providing a reliable supporting force for the round roller 7 to ensure that the round roller 7 can stably carry the rail. When the support mechanism 6 needs to be removed, the support rod 18 can smoothly slide onto the inclined surface 21 along the support surface 20. As the support rod 18 moves on the inclined surface 21, its height gradually decreases, thereby driving the round roller 7 to tilt downward. This tilting change of the round roller 7 can significantly reduce the contact area with the rail and at the same time reduce the friction between the two, making the removal work of the support mechanism 6 easier and more convenient, and effectively improving the construction efficiency.

[0044] As Figure 4 shown in the figure, a vertical plate 27 is fixed to the top of the bottom shell 5. An outer spring 28 is fixed to the side of the vertical plate 27 close to the support rod 18. The end of the outer spring 28 is movably connected to the surface of the support rod 18. When the support mechanism 6 is successfully removed from the bottom of the rail, the outer spring 28 can quickly provide a strong elastic force for the support rod 18. Under the action of this elastic force, the support rod 18 can quickly return to its initial position, making full preparations for the next support operation, greatly improving the use efficiency and turnover speed of the support mechanism 6, and reducing the waiting time during the construction process.

[0045] As Figure 4 shown in the figure, a pressing rod 23 penetrates through the inner wall of the bottom shell 5 movably. One end of the pressing rod 23 is attached to the side of the support rod 18. A limiting plate 39 is fixed to the other end of the pressing rod 23. The side of the limiting plate 39 is attached to the side of the bottom shell 5. A pulling rope 29 is fixed to the side of the limiting plate 39 away from the bottom shell 5. A square block 30 is fixed between adjacent pulling ropes 29. The square block 30 is placed on the top of the base 1. A handle 31 is fixed to the side of the square block 30. During the operation, the construction worker only needs to easily hold the handle 31 and then pull up the pulling rope 29. The movement of the pulling rope 29 will drive the limiting plate 39 to move synchronously. The limiting plate 39 will then push the pressing rod 23, and the pressing rod 23 will accurately transfer this force to the support rod 18, thereby realizing the precise adjustment of the angle of the round roller 7. This design transforms the complex mechanical operation into a simple manual pulling, greatly reducing the operation difficulty of the construction worker and improving the convenience and controllability of the operation.

[0046] As Figure 3As shown, a positioning assembly 32 is provided on the side of the rotating seat 25 away from the round roller 7. The positioning assembly 32 includes a positioning block 33 fixed to the side surface of the rotating seat 25. A positioning surface 34 is provided on the side surface of the positioning block 33. The positioning surface 34 fits with the curved surface 3 of the concrete sleeper 2, which can quickly and accurately determine the position of the bottom shell 5 beside the concrete sleeper 2. This precise positioning process does not require construction workers to repeatedly adjust the position, greatly saving construction time and improving construction efficiency. At the same time, it also ensures that the installation position of the support mechanism 6 is accurate, providing a strong guarantee for the accuracy of subsequent rail laying.

[0047] As Figure 3 shown, positioning tubes 37 and positioning pins 38 are respectively fixed to the opposite surfaces of the two positioning blocks 33. An arc surface is provided at the end of the positioning pin 38. After the support mechanism 6 is used, construction workers can accurately insert the positioning pin 38 into the positioning tube 37. This insertion action realizes the precise positioning of two adjacent support mechanisms 6, enabling the support mechanisms 6 to maintain an orderly state during storage and storage, facilitating management and reuse.

[0048] As Figure 3 shown, both the positioning tube 37 and the positioning pin 38 are elliptical. In practical applications, this characteristic enables two adjacent support mechanisms 6 to be stably placed together without shifting or rotating due to external forces. When the support mechanism 6 needs to be used again, construction workers only need to simply open the two support mechanisms 6 and can quickly put them into use. The operation process is simple and convenient, greatly improving construction efficiency, and the positioning tube 37 can act as a handle. When lifting the entire device through the positioning tube 37, the support mechanisms 6 will not rotate and are more stable during handling.

[0049] As Figure 9 and Figure 10 shown, round holes 35 are provided at the ends of the positioning blocks 33. Two round rods 36 are fixed to the side surface of the square block 30. When the bottom shell 5 is in the storage state, after the positioning pin 38 is inserted into the positioning tube 37, the round rods 36 are inserted into the round holes 35, which can effectively prevent the two positioning blocks 33 from separating. Through this double positioning method, the stability of the support mechanism 6 during placement is significantly enhanced, ensuring that the support mechanism 6 can also maintain a stable state in the non-use state.

[0050] As Figure 9 and Figure 10As shown, both the round rod 36 and the round hole 35 are arranged obliquely upward. This inclined design utilizes the principle of the action of gravity. Under the influence of gravity, it is difficult for the round rod 36 to break away from the round hole 35 of the inclined structure. This characteristic further improves the stability of the support mechanism 6 during the placement process. Even when subjected to a certain external force interference, it can ensure that the support mechanism 6 is firmly placed, providing a reliable guarantee for the long-term storage and management of the support mechanism 6.

[0051] The working principle of the technical solution provided by the present invention is as follows:

[0052] When taking out the support mechanism 6 from the bottom of the long rail, first hold the handle 31 with the hand and pull the handle 31 upward. The handle 31 will drive the pull rope 29 to move. The pull rope 29 will drive the limit plate 39 to move. The limit plate 39 will drive the extrusion rod 23 to move. The extrusion rod 23 will drive the support rod 18 to move in the direction of the round roller 7. The support rod 18 will drive the adjustment block 12 to move. When the adjustment block 12 moves into the inner part of the round groove 11, the limit block 16 will slide along the adjustment surface 13. During the process of the limit block 16 being received towards the center, the support rod 18 will slide from the support surface 20 of the support block 19 to the inclined surface 21. At this time, the support rod 18 will move downward. The support rod 18 will drive the connecting block 10 to move downward through the adjustment block 12. The connecting block 10 will drive the round roller 7 to tilt. The round roller 7 will tilt on the rotating seat 25 through the insertion rod 26. After the round roller 7 tilts, the contact area between the long rail and the round roller 7 decreases. At the same time, continue to pull the pull rope 29, and then the round roller 7 can be pulled out from the bottom of the long rail, and the two round rollers 7 can be pulled out from the bottoms of the long rails on both sides at the same time, making the operation more convenient.

[0053] After the round roller 7 is pulled out from the bottom of the long rail, the outer spring 28 will drive the support rod 18 to reset. The inner spring 17 will drive the T-shaped block 15 to slide on the inner wall of the T-shaped groove 14. The T-shaped block 15 will drive the limit block 16 to reset, and the round roller 7 will return to the horizontal state.

[0054] At this time, bring the two bottom shells 5 closer to each other. The positioning pins 38 on the adjacent two bottom shells 5 will be inserted into the inside of the positioning tube 37 to realize the positioning of the bottom shells 5. Then insert the round rod 36 into the round hole 35 to prevent the two bottom shells 5 from separating from each other. Then the support mechanism 6 is stored.

[0055] When it is necessary to use again, hold the hand on the surface of the positioning tube 37, place the bottom case 5 on the base 1, and attach the side surface of the bottom case 5 to the vertical surface 4 of the concrete sleeper 2. Then hold the hand on the handle 31, pull out the round rod 36 on the square block 30 from the round hole 35. Then move the two bottom cases 5 away from each other until the positioning surface 34 of the positioning block 33 fits against the curved surface 3 of the concrete sleeper 2. Then move the long rail onto the round roller 7. During the movement of the long rail, the long rail will drive the round roller 7 to rotate, and the round roller 7 will rotate on the surfaces of the insertion rod 26 and the adjustment block 12. After the traction of the long rail is completed, repeat the above steps again to take out the support mechanism 6. After the support mechanism 6 is taken out, fix the long rail on the concrete sleeper 2.

[0056] The present invention covers any alternatives, modifications, equivalent methods, and solutions made within the spirit and scope of the present invention. For the public to have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention. However, those skilled in the art can fully understand the present invention without the description of these details. In addition, well-known methods, processes, procedures, components, and circuits, etc. are not described in detail to avoid unnecessary confusion to the essence of the present invention.

[0057] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A support device for laying long rails on a large ramp, characterized in that: include: Two bottom shells, the two bottom shells are placed on a base, a supporting mechanism is arranged on the bottom shell, the side surface of the bottom shell is fitted with the vertical surface of the concrete sleeper, the supporting mechanism comprises a round roller and an adjusting assembly and a rotating assembly on both sides of the round roller, the round roller is arranged above the bottom shell, a limiting ring is fixed to the circumferential surface of the round roller, the rotating assembly comprises a rotating seat fixed to the top of the bottom shell, a plug rod is rotatably connected to the rotating seat, the plug rod is rotatably connected to the round roller through a bearing, the adjusting assembly is arranged on a side of the round roller away from the plug rod, the adjusting assembly comprises an adjusting block arranged inside the round roller, a supporting rod is fixed to the end of the adjusting block, a through groove connected to the inside of the bottom shell is opened on the top of the bottom shell, the surface of the supporting rod is slidably connected to the inner wall of the through groove, a supporting block is fixed to the inner wall of the bottom shell, and the supporting rod is against the top of the supporting block; A connecting block is fixed to the inner wall of one end of the round roller away from the insertion rod, a circular groove is provided at one end of the connecting block away from the insertion rod, an adjusting block is rotatably connected to the inner wall of the circular groove, a plurality of T-shaped grooves are provided at one end of the connecting block away from the insertion rod, a T-shaped block is slidably connected to the inner wall of the T-shaped groove, an inner spring is fixed to the T-shaped block on the side facing the center of the round roller, the inner spring is fixedly connected to the inner wall of the T-shaped groove, a limiting block is fixed to one end of the T-shaped block away from the insertion rod, the surface of the limiting block is slidably connected to the surface of the round roller, an adjusting surface is provided on the surface of the adjusting block, and an end of the limiting block is slidably connected to the surface of the adjusting surface; The top of the support block is provided with a supporting surface and an inclined surface connected in sequence, and the bottom of the support rod is slidably connected to the top of the supporting surface; An extrusion rod is movably penetrated through the inner wall of the bottom shell, one end of the extrusion rod is fitted on the side of the support rod, and a limiting plate is fixed to the other end of the extrusion rod. The side of the limiting plate is fitted with the side of the bottom shell, and a pull rope is fixed on the side of the limiting plate away from the bottom shell. A block is fixed between two adjacent pull ropes, the block is placed on the top of the base, and a handle is fixed on the side of the block.

2. The supporting device for laying long rails on a large ramp according to claim 1, characterized in that: A vertical plate is fixed on the top of the bottom shell, an outer spring is fixed on one side of the vertical plate close to the support rod, and an end of the outer spring is movably connected to the surface of the support rod.

3. The supporting device for laying long rails on a large ramp according to claim 1, characterized in that: A positioning assembly is arranged on the side of the rotating seat away from the round roller. The positioning assembly comprises a positioning block fixed on the side of the rotating seat. A positioning surface is arranged on the side of the positioning block. The positioning surface fits the curved surface of the concrete sleeper.

4. The supporting device for laying long rails on a large ramp according to claim 3, characterized in that: A positioning tube and a positioning pin are respectively fixed to the opposite surfaces of the two positioning blocks, and an arc surface is arranged at the end of the positioning pin.

5. The supporting device for laying long rails on a large ramp according to claim 4, characterized in that: The positioning tube and the positioning pin are both elliptical.

6. The supporting device for laying long rails on a large ramp according to claim 3, characterized in that: A round hole is opened at the end of the positioning block, and two round rods are fixed on the side of the block. When the bottom shell is in the storage state, the round rods are inserted into the round hole.

7. The supporting device for laying long rails on a large ramp according to claim 6, characterized in that: The round rod and the round hole are both arranged to be inclined upward.

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