Supporting device for laying long steel rail large ramp

Abstract

The invention provides a supporting device for laying a long steel rail large ramp, and belongs to the technical field of steel rail laying. Comprising two bottom shells, the two bottom shells are placed on a base, supporting mechanisms are arranged on the bottom shells, and the side faces of the bottom shells are attached to the vertical face of a concrete sleeper. The supporting mechanism is arranged, the round roller and the limiting block are installed on the supporting mechanism, when the supporting mechanism needs to be taken out, only a pull rope needs to be pulled, the round roller is made to incline downwards through a rotating assembly by pulling of the pull rope, in this way, friction force between the round roller and the long steel rail can be obviously reduced, meanwhile, the limiting block can contract inwards, and therefore the supporting mechanism can be taken out conveniently. The situation that clamping stagnation occurs between the limiting blocks and the long steel rail is effectively avoided, under the dual effects of friction force reduction and clamping stagnation risk elimination, the two adjacent supporting mechanisms can be easily pulled out from the bottom of the long steel rail only by continuously pulling the pull rope, and the whole operation process becomes simpler, more convenient and more efficient.

Description

Technical Field

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

[0002] A steep ramp refers to a track section with a slope exceeding 6‰. Due to its large slope, long rails are usually used when laying rails in such areas. Long rails are a type of railway track component that is significantly longer than ordinary rails. Their laying process has strict specifications. Before laying, the pouring and installation of the base and concrete sleepers must be completed first. After the base and concrete sleepers are completed, a tractor is used to tow the long rails to the top of the concrete sleepers. Before the long rails come into contact with the concrete sleepers, a supporting mechanism must be placed in advance at the concrete sleepers. The long rails first come into contact with the supporting mechanism and can roll on the supporting mechanism, which helps to smoothly tow the long rails. When the long rails are towed into place, the supporting mechanism is removed from under the long rails, and then the long rails are fixed to the concrete sleepers, completing the laying work.

[0003] The supporting mechanism is equipped with a limit ring, which can effectively prevent the long rail from detaching from the supporting mechanism during the laying process. During actual laying, the long rail is tightly pressed against the supporting mechanism, and there is a large friction between the two. When the supporting mechanism needs to be taken out, due to the large weight of the long rail, the long rail must be lifted upward first to create enough space before the supporting mechanism can be smoothly pulled out. However, the long rail itself is heavy, and this operation requires a lot of effort, which places high demands on the physical strength and operating skills of the construction workers. From the perspective of construction convenience, there is a need for further optimization of the convenience of taking out the supporting mechanism. Therefore, the present application provides a supporting device for laying long rails on large slopes to meet the needs. 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] In order to solve the above technical problems, the present invention provides the following technical solutions: A supporting device for laying long rails on a large ramp, comprising: 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 includes a round roller and an adjusting component and a rotating component 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 component includes 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 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 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 block 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.

[0006] Optionally, a connecting block is fixed to the inner wall of the end of the round roller away from the insertion rod, a circular groove is opened at the end of the connecting block away from the insertion rod, the adjusting block is rotatably connected to the inner wall of the circular groove, a plurality of T-slots are opened at the end of the connecting block away from the insertion rod, a T-block is slidably connected to the inner wall of the T-slot, an inner spring is fixed to the T-block on the side facing the center of the round roller, the inner spring is fixedly connected to the inner wall of the T-slot, a limiting block is fixed to the end of the T-block away from the insertion rod, the surface of the limiting block is slidably connected to the surface of the round roller, the surface of the adjusting block is provided with an adjusting surface, and the end of the limiting block is slidably connected to the surface of the adjusting surface.

[0007] Optionally, a supporting surface and an inclined surface connected in sequence are provided on the top of the supporting block, and the bottom of the supporting rod is slidably connected to the top of the supporting surface.

[0008] Optionally, a vertical plate is fixed to the top of the bottom shell, an outer spring is fixed to a 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.

[0009] Optionally, 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.

[0010] Optionally, a positioning assembly is provided on the side of the rotating seat away from the round roller, and the positioning assembly includes a positioning block fixed on the side of the rotating seat, and a positioning surface is provided on the side of the positioning block, and the positioning surface fits with the curved surface of the concrete sleeper.

[0011] Optionally, a positioning tube and a positioning pin are fixed to opposite surfaces of the two positioning blocks respectively, and an arc surface is provided at the end of the positioning pin.

[0012] Optionally, the positioning tube and the positioning pin are both elliptical.

[0013] 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.

[0014] Optionally, the round rod and the round hole are both arranged to be inclined upward.

[0015] Compared with the prior art, the present invention has at least the following beneficial effects: 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.

[0016] 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 the laying efficiency.

[0017] 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.

[0018] 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

[0019] 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.

[0020] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the concrete sleeper of the present invention; Figure 3 It is a schematic diagram of the three-dimensional structure of the support mechanism of the present invention; Figure 4 It is a cross-sectional view of the round roller of the present invention; Figure 5 This is a schematic diagram of the three-dimensional structure of the T-shaped block of the present invention; Figure 6 It is a schematic diagram of the three-dimensional structure of the adjustment block of the present invention; Figure 7 It is a schematic diagram of the three-dimensional structure of the support block of the present invention; Figure 8 It is a schematic diagram of the three-dimensional structure of the limit block of the present invention; Fig. 9 This is a schematic diagram of the three-dimensional structure of the positioning block of the present invention; Fig.10 It is a schematic diagram of the three-dimensional structure of the handle of the present invention.

[0021] In the figure: 1. base; 2. concrete pillow; 3. curved surface; 4. vertical surface; 5. bottom shell; 6. supporting 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. supporting rod; 19. supporting block; 20. supporting surface; 21. inclined surface; 22. through groove; 23. extrusion rod; 24. rotating assembly; 25. rotating seat; 26. plug rod; 27. vertical plate; 28. outer spring; 29. ​​pull rope; 30. square; 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.

[0022] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0023] The following is a detailed description of a support device for laying a long steel rail on a large ramp provided by the present invention in conjunction with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternative methods to implement some known technologies; and the accompanying drawings are only for a more specific description of the embodiments, and are not intended to specifically limit the present invention.

[0024] It should be noted that the references to "one embodiment", "embodiment", "exemplary embodiments", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in conjunction with an embodiment, it should be within the knowledge of a person skilled in the art to implement such feature, structure or characteristic in conjunction with other embodiments (whether or not explicitly described).

[0025] In general, a term can be understood, at least in part, from its use in context. For example, depending, at least in part, on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending, at least in part, on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0026] It will be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” not only means “directly on” something, but also includes the meaning of being “on” something with intervening features or layers therebetween, and “on” or “over” not only means “on” or “above” something, but also includes the meaning of being “on” or “above” something with no intervening features or layers therebetween.

[0027] Additionally, spatially relative terms such as "under," "beneath," "lower," "above," "upper," and the like may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as shown in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein may be similarly interpreted accordingly.

[0028] like Figures 1 to 10 As shown, an embodiment of the present invention provides a support device for laying long rails on a large ramp, comprising: Two bottom shells 5 are placed on the base 1. A supporting mechanism 6 is arranged on the bottom shell 5. The side surface of the bottom shell 5 is in contact with the vertical surface 4 of the concrete sleeper 2. The supporting mechanism 6 includes a round roller 7 and an adjusting assembly 9 and a rotating assembly 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 to the circumferential surface of the round roller 7. The rotating assembly 24 includes a rotating seat 25 fixed to 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 assembly 9 is arranged on the side of the round roller 7 away from the plug rod 26. The adjusting assembly 9 includes an adjusting block 12 arranged inside the round roller 7. A supporting rod 18 is fixed to the end of the adjusting block 12. A through groove 22 connected to the inside of the bottom shell 5 is opened on the top of the bottom shell 5. The surface of the supporting block 19 is slidably connected to the inner wall of the through groove 22. A supporting block 19 is fixed to the inner wall of the bottom shell 5, and the supporting rod 18 is against the top of the supporting block 19.

[0029] like Figure 4 As shown, a connecting block 10 is fixed to the inner wall of the end of the round roller 7 away from the insertion rod 26, a circular groove 11 is provided at the end of the connecting block 10 away from the insertion rod 26, an adjusting block 12 is rotatably connected to the inner wall of the circular groove 11, a plurality of T-shaped grooves 14 are provided at the end of the connecting block 10 away from the insertion 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 to the T-shaped block 15 on the side facing the center of the round roller 7, the inner spring 17 is fixedly connected to the inner wall of the T-shaped groove 14, a limiting block 16 is fixed to the end of the T-shaped block 15 away from the insertion rod 26, the surface of the limiting block 16 is slidably connected to the surface of the round roller 7, and the surface of the adjusting block 12 is provided with an adjusting surface 13, the end of the limit block 16 is slidably connected to the surface of the adjustment surface 13. During the traction process of the rail, the limit block 16 can play an auxiliary limiting role to enhance the stability of the rail on the round roller 7; and when the support mechanism 6 is taken out, the limit block 16 can shrink inwards to effectively avoid jamming with the rail, creating favorable conditions for the smooth removal of the support mechanism 6, wherein the highest point of the limit ring 8 is higher than the highest point of the limit block 16, and the limit ring 8 can contact with the long rail first, and is positioned between the limit ring 8 and the long rail first, and then the long rail falls on the round roller 7, at which time the long rail is limited by the limit ring 8 and the limit block 16 at the same time.

[0030] like Figure 7As shown, the top of the support block 19 is provided with a supporting surface 20 and an inclined surface 21 connected in sequence, and the bottom of the support rod 18 is slidably connected to the top of the supporting surface 20. In the normal working state of supporting the rail, the support rod 18 stays firmly on the supporting surface 20, providing reliable supporting force for the round roller 7, ensuring that the round roller 7 can stably carry the rail, and when the support mechanism 6 needs to be taken out, the support rod 18 can smoothly slide along the supporting surface 20 to the inclined surface 21, and 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 tilt 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 of the support mechanism 6 easier and more convenient, and effectively improving the construction efficiency.

[0031] like Figure 4 As shown, a vertical plate 27 is fixed to the top of the bottom shell 5, and 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 taken out 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 and be fully prepared for the next support operation, which greatly improves the use efficiency and turnover speed of the support mechanism 6 and reduces the waiting time during the construction process.

[0032] like Figure 4 As shown, an extrusion rod 23 is movably penetrated through the inner wall of the bottom shell 5, one end of the extrusion rod 23 is fitted on the side of the support rod 18, and a limit plate 39 is fixed on the other end of the extrusion rod 23, and the side of the limit plate 39 is fitted with the side of the bottom shell 5, and a pull rope 29 is fixed on the side of the limit plate 39 away from the bottom shell 5, and a block 30 is fixed between two adjacent pull ropes 29, and the block 30 is placed on the top of the base 1, and a handle 31 is fixed on the side of the block 30. During operation, the construction personnel only need to easily hold the handle 31 and then pull the pull rope 29 upward. The movement of the pull rope 29 will drive the limit plate 39 to move synchronously, and the limit plate 39 will push the extrusion rod 23, and the extrusion rod 23 will accurately transmit this force to the support rod 18, thereby realizing the precise adjustment of the angle of the round roller 7. This design converts complex mechanical operation into simple human pulling, greatly reducing the operation difficulty of construction personnel and improving the convenience and controllability of operation.

[0033] like 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 on the side of the rotating seat 25. A positioning surface 34 is provided on the side of the positioning block 33. The positioning surface 34 fits with the curved surface 3 of the concrete sleeper 2, and can quickly and accurately determine the position of the bottom shell 5 next to the concrete sleeper 2. This precise positioning process does not require construction personnel to repeatedly adjust the position, which greatly saves construction time and improves construction efficiency. At the same time, it also ensures that the installation position of the support mechanism 6 is accurate, which provides a strong guarantee for the accuracy of subsequent rail laying.

[0034] like Figure 3 As shown, the opposite surfaces of the two positioning blocks 33 are respectively fixed with positioning tubes 37 and positioning pins 38. The ends of the positioning pins 38 are provided with arc-shaped surfaces. When the support mechanism 6 is finished using, the construction personnel can accurately insert the positioning pins 38 into the positioning tubes 37. This insertion action realizes the accurate positioning of the two adjacent support mechanisms 6, so that the support mechanisms 6 can remain neat and orderly during the storage and storage process, which is convenient for management and reuse.

[0035] like Figure 3 As shown, the positioning tube 37 and the positioning pin 38 are both elliptical. In actual application, this feature enables two adjacent support mechanisms 6 to be firmly placed together without position displacement or rotation due to external force. When the support mechanism 6 needs to be used again, the construction personnel only need to simply open the two support mechanisms 6 to quickly put them into use. The operation process is simple and convenient, which greatly improves the construction efficiency. The positioning tube 37 can act as a handle. When the entire device is lifted up by the positioning tube 37, the support mechanisms 6 will not rotate, and it is more stable during transportation.

[0036] like Fig. 9 and Fig.10 As shown, a circular hole 35 is formed at the end of the positioning block 33, and two round rods 36 are fixed to the side of the 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 rod 36 is inserted into the circular hole 35, which can effectively prevent the two positioning blocks 33 from separating. Through this double positioning method, the stability of the support mechanism 6 when placed is significantly enhanced, ensuring that the support mechanism 6 can remain stable even when not in use.

[0037] like Fig. 9 and Fig.10As shown, the round rod 36 and the round hole 35 are both arranged to be inclined upward. This inclined design utilizes the principle of gravity. Under the influence of gravity, the round rod 36 is difficult to escape from the round hole 35 of the inclined structure. This feature further improves the stability of the support mechanism 6 during the placement process, and even when subject to certain external force interference, it can ensure that the support mechanism 6 is firmly placed, providing reliable protection for the long-term storage and management of the support mechanism 6.

[0038] The working principle of the technical solution provided by the present invention is as follows: When taking the supporting mechanism 6 out from the bottom of the long rail, now hold the handle 31 and pull the handle 31 upwards, 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 supporting rod 18 to move in the direction of the round roller 7, the supporting rod 18 will drive the adjusting block 12 to move, the adjusting block 12 moves toward the inside of the circular groove 11, the limit block 16 will slide along the adjusting surface 13, and the support rod 18 will move in the process of the limit block 16 being stored toward the center. 8 will slide from the supporting surface 20 of the supporting block 19 to the inclined surface 21, at this time the supporting rod 18 will move downward, the supporting rod 18 will drive the connecting block 10 to move downward through the adjusting 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 inserting rod 26, after the round roller 7 tilts, the contact area between the long rail and the round roller 7 is reduced, and at the same time, the pull rope 29 is continued to be pulled, so that 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 bottom of the long rails on both sides at the same time, which is more convenient to operate.

[0039] 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-block 15 to slide on the inner wall of the T-slot 14, the T-block 15 will drive the limit block 16 to reset, and the round roller 7 will return to the horizontal state.

[0040] At this time, the two bottom shells 5 are brought close to each other, and the positioning pins 38 on the two adjacent bottom shells 5 are inserted into the interior of the positioning tube 37 to realize the positioning of the bottom shells 5. Then the round rod 36 is inserted into the round hole 35 to prevent the two bottom shells 5 from detaching, and then the support mechanism 6 is stored.

[0041] When it is needed again, hold the surface of the positioning tube 37 with your hand, place the bottom shell 5 on the base 1, and fit the side of the bottom shell 5 on the vertical surface 4 of the concrete sleeper 2, then hold the handle 31 with your hand, pull the round rod 36 on the block 30 out of the round hole 35, then move the two bottom shells 5 away from each other until the positioning surface 34 of the positioning block 33 fits on the curved surface 3 of the concrete sleeper 2, then move the long rail to the round roller 7, and the long rail will drive the round roller 7 to rotate while moving, and the round roller 7 will rotate on the surface of the insertion rod 26 and the adjustment block 12. When the long rail is pulled, repeat the above steps again to take out the supporting mechanism 6. After the supporting mechanism 6 is taken out, fix the long rail on the concrete sleeper 2.

[0042] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, but those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0043] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection 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 includes a round roller and an adjusting component and a rotating component 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 component includes 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 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 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.

2. The supporting device for laying long rails on a large ramp according to claim 1, characterized in that: A connecting block is fixed to the inner wall of the end of the round roller away from the insertion rod, a circular groove is opened at the end of the connecting block away from the insertion rod, the adjusting block is rotatably connected to the inner wall of the circular groove, a plurality of T-slots are opened at the end of the connecting block away from the insertion rod, a T-block is slidably connected to the inner wall of the T-slot, an inner spring is fixed to the T-block on the side facing the center of the round roller, the inner spring is fixedly connected to the inner wall of the T-slot, a limiting block is fixed to the end of the T-block away from the insertion rod, the surface of the limiting block is slidably connected to the surface of the round roller, the surface of the adjusting block is provided with an adjusting surface, and the end of the limiting block is slidably connected to the surface of the adjusting surface.

3. The supporting device for laying long rails on a large ramp according to claim 1, characterized in that: The top of the support block is provided with a supporting surface and an inclined surface which are connected in sequence, and the bottom of the support rod is slidably connected with the top of the supporting surface.

4. 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.

5. The supporting device for laying long rails on a large ramp according to claim 1, characterized in that: 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.

6. The supporting device for laying long rails on a large ramp according to claim 5, 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.

7. The supporting device for laying long rails on a large ramp according to claim 6, 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.

8. The supporting device for laying long rails on a large ramp according to claim 7, characterized in that: The positioning tube and the positioning pin are both elliptical.

9. The supporting device for laying long rails on a large ramp according to claim 6, 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.

10. The supporting device for laying long rails on a large ramp according to claim 9, characterized in that: The round rod and the round hole are both arranged to be inclined upward.

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