Climbing cushion block for movable welding of ballastless steel rail

By designing a movable welding ramp pad for ballastless rails, the rails are fixed in both the lateral and longitudinal directions by using a limiting inclined surface and bolt connection. This solves the problem of welding machines derailing and overturning on ballastless track lines. It is suitable for high-speed railways with ballastless track slabs and improves welding safety and applicability.

CN223893167UActive Publication Date: 2026-02-10BEIJING RAILWELD NEW MATERIAL TECH CO LTD +4
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Patent Information

Application Number
CN202520198379.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-08
Publication Date
2026-02-10
Estimated Expiration
2035-02-08

AI Technical Summary

Technical Problem

Existing technologies lack effective methods for lateral and longitudinal limiting and fixing when welding rails on ballastless tracks, which makes the welding machine prone to derailment and overturning, posing safety hazards. Furthermore, existing pads are not suitable for high-speed railway operations using ballastless track slabs.

Method used

Design a movable welded climbing pad for ballastless rails, including an upper body, a lower body, a height component, and a rail base corner block. It is connected to the rail support platform by bolts through a limiting inclined surface to achieve lateral and longitudinal limiting and fixing of the rail. It is suitable for high-speed railways with ballastless track slabs.

Benefits of technology

Stable welding of ballastless track slab rails has been achieved, preventing the welding machine from derailing and overturning, thus improving welding safety and applicability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a ballastless steel rail mobile welding climbing cushion block which comprises an upper main body, a lower main body, a height piece, a first rail base angle pressing block and a second rail base angle pressing block. The upper main body comprises an upper mounting plate, a first fixing block and a second fixing block, and the first fixing block and the second fixing block are oppositely mounted on the two outer sides of the upper mounting plate; the lower main body comprises a lower mounting plate parallel to the upper mounting plate; the height piece comprises a first height plate and a second height plate; the first height plate and the second height plate are oppositely mounted between the upper mounting plate and the lower mounting plate; one side of the first rail base angle pressing block is provided with a first limiting inclined plane used for being attached to the inclined plane on one side of the rail base angle of the steel rail; a second limiting inclined face used for being attached to the inclined face on the other side of the rail base angle of the steel rail is arranged on one side of the second rail base angle pressing block. According to the ballastless type steel rail moving welding climbing cushion block, during flash welding operation, transverse and longitudinal limiting and fixing of a down-slope supporting cushion operation steel rail are achieved.
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Description

Technical Field

[0001] This utility model relates to the field of rail welding technology, and more specifically, to a ballastless rail mobile welding ramp pad. Background Technology

[0002] With the increasing operating time and freight volume of existing railway lines in my country, rail wear is becoming increasingly serious. To ensure the safe, stable, and reliable operation of railways, rail welding is a crucial step in laying seamless railway tracks and an important guarantee for the safety of train operation.

[0003] Currently, during on-site mobile welding operations, the welding machine cannot be directly positioned for welding due to the conflict between its size and the track slab structure. It is necessary to raise the rails on both sides of the weld joint to avoid interference between the welding machine and the track slab structure during clamping. Raising the rails on both sides of the weld joint creates a certain slope, known as a slope support. Once the welding machine climbs the slope, the welding operation can be completed smoothly.

[0004] There are two main methods for supporting rails along slopes. First, on-site personnel use wooden planks, round steel bars, or steel plates of a certain height to support the rails. This method is somewhat arbitrary, with inconsistent sizes and specifications of the support tools, unreliable structural strength, and difficulty in achieving lateral and longitudinal positioning and fixation of the rails while they are raised. This poses safety hazards and increases the risk of welding machines derailing or overturning. Second, existing technology uses sleeper bolts as a fixing reference to achieve lateral and longitudinal locking of the support blocks in the rail bearing groove. This technology is only suitable for ballasted track lines, and its dimensions are set based on the anchor bolts on the concrete sleeper bearing groove. It is not suitable for high-speed railway operations using ballastless track slabs.

[0005] Therefore, it is necessary to solve the above-mentioned technical problems. Utility Model Content

[0006] In view of this, the purpose of this utility model is to propose a ballastless rail moving welding ramp pad to achieve lateral and longitudinal limiting and fixing of the rail for the downhill support operation during flash welding.

[0007] To achieve the above objectives, this utility model provides a ballastless rail movable welding ramp pad, comprising an upper body, a lower body, a height component, a first rail bottom corner pressure block, and a second rail bottom corner pressure block, wherein: the upper body includes an upper mounting plate and a first fixing block and a second fixing block mounted opposite to each other on both outer sides of the upper mounting plate; the lower body includes a lower mounting plate arranged parallel to the upper mounting plate; the height component includes a first height plate and a second height plate, the first height plate and the second height plate being mounted opposite to each other between the upper mounting plate and the lower mounting plate, and the length direction of the first height plate and the second height plate being perpendicular to the length direction of the rail; the first rail bottom corner pressure block and the second rail bottom corner pressure block are respectively located on both sides of the upper mounting plate. On one side, the top surface of the first rail base corner pressure block is provided with a first mounting hole, and the top surface of the first fixing block is provided with a second mounting hole. The first track fastener bolt on the rail support platform passes through the first mounting hole and the second mounting hole in sequence and is then threaded onto the rail support platform. One side of the first rail base corner pressure block is provided with a first limiting slope for fitting the inclined surface of one side of the rail base corner of the rail. The top surface of the second rail base corner pressure block is provided with a third mounting hole, and the top surface of the second fixing block is provided with a fourth mounting hole. The second track fastener bolt on the rail support platform passes through the third mounting hole and the fourth mounting hole in sequence and is then threaded onto the rail support platform. One side of the second rail base corner pressure block is provided with a second limiting slope for fitting the inclined surface of the other side of the rail base corner of the rail.

[0008] Optionally, the top surface of the first height plate is attached to the bottom surface of the upper mounting plate, the bottom surface of the first height plate is attached to the top surface of the lower mounting plate, the top surface of the second height plate is attached to the bottom surface of the upper mounting plate, and the bottom surface of the second height plate is attached to the top surface of the lower mounting plate.

[0009] Optionally, the height component further includes a first connecting plate, the two ends of which are respectively installed between the first height plate and the second height plate.

[0010] Optionally, a first limiting boss and a second limiting boss are respectively provided on both sides of the upper mounting plate along the length direction of the upper mounting plate, and the distance between the first limiting boss and the second limiting boss is greater than the width of the rail.

[0011] Optionally, it also includes a first flexible connector and a second flexible connector, wherein one end of the first flexible connector is mounted on the first rail bottom corner block and the other end of the first flexible connector is mounted on the first fixing block; one end of the second flexible connector is mounted on the second rail bottom corner block and the other end of the second flexible connector is mounted on the second fixing block.

[0012] Optionally, the first flexible connector is provided with a first fixing ring and a second fixing ring at both ends. The first fixing ring is threadedly installed on the first rail bottom corner pressure block, and the second fixing ring is threadedly installed on the first fixing block.

[0013] Optionally, the second flexible connector is provided with a third fixing ring and a fourth fixing ring at both ends, the third fixing ring being threadedly installed on the second rail bottom corner pressure block, and the fourth fixing ring being threadedly installed on the second fixing block.

[0014] Optionally, the top surface of the upper body is provided with a first weight-reducing through hole, and the top surface of the lower body is provided with a second weight-reducing through hole.

[0015] Optionally, it also includes multiple first connecting bolts and multiple second connecting bolts. The top surface of the upper mounting plate is provided with multiple first through holes, and the bottom surface of the lower mounting plate is provided with multiple second through holes. The top surface of the first height plate is provided with multiple first threaded through holes, and the top surface of the second height plate is provided with multiple second threaded through holes. The multiple first connecting bolts, multiple second connecting bolts, multiple first through holes, multiple second through holes, multiple first threaded through holes, and multiple second threaded through holes are all provided in a one-to-one correspondence. The multiple first connecting bolts pass through the multiple first through holes and are threaded into the multiple first threaded through holes, and the multiple second connecting bolts pass through the multiple second through holes and are threaded into the multiple second threaded through holes.

[0016] The ballastless rail movable welding ramp pad provided by this utility model includes an upper body, a lower body, a height component, a first rail bottom corner pressure block, and a second rail bottom corner pressure block. First, the first height plate and the second height plate are installed opposite each other between the upper mounting plate and the lower mounting plate. The first rail bottom corner pressure block and the second rail bottom corner pressure block are respectively located on both sides of the upper body and placed on the top surfaces of the first fixing block and the second fixing block. Then, the first track fastener bolt on the rail support platform is threaded onto the rail support platform after passing through the first mounting hole and the second mounting hole in sequence. The second track fastener bolt on the rail support platform is threaded onto the rail support platform after passing through the third mounting hole and the fourth mounting hole in sequence. Finally, the lower body is placed inside the rail support platform of the ballastless track slab, thereby installing the ballastless rail movable welding ramp pad on the existing rail support platform; loosen the first line fastener bolt and the second line fastener bolt, so that the first limiting ramp and the second limiting ramp are set opposite to each other, place the rail on the top surface of the upper mounting plate, then set the first limiting ramp and the second limiting ramp opposite to each other, tighten the first line fastener bolt and the second line fastener bolt, so that the first limiting ramp is attached to the ramp on one side of the rail base angle of the rail, and the second limiting ramp is attached to the ramp on the other side of the rail base angle of the rail, thereby limiting the rail base angle of the rail, realizing the lateral and longitudinal limiting and fixing of the rail during flash welding operation. Attached Figure Description

[0017] The preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings, which will help to understand the purpose and advantages of this utility model, wherein:

[0018] Figure 1 This is a schematic diagram of the structure of a movable welded ramp pad for ballastless steel rail according to an embodiment of the present invention;

[0019] Figure 2 This is an exploded view of a movable welded climbing pad for ballastless steel rail according to an embodiment of the present invention;

[0020] Figure 3 This is a structural schematic diagram of the height component in the movable welded ramp pad block for ballastless steel rails according to an embodiment of the present invention.

[0021] Figure 4 This is a schematic diagram illustrating the installation of the movable welded ramp pad for ballastless steel rails, the rail support platform, and the steel rail according to an embodiment of this utility model.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1: Upper body; 2: Lower body; 3: Height component; 4: First rail bottom corner clamping block; 5: Second rail bottom corner clamping block; 6: Upper mounting plate; 7: First fixing block; 8: Second fixing block; 9: Lower mounting plate; 10: First height plate; 11: Second height plate; 12: First mounting hole; 13: Second mounting hole; 14: First line fastener bolt; 15: First limiting slope; 16: Third mounting hole; 17: Fourth mounting hole; 18: Second limiting slope; 19: 20: First connecting plate; 21: First limiting platform; 22: Second limiting platform; 23: First flexible connector; 24: Second flexible connector; 25: First fixing ring; 26: Second fixing ring; 27: Third fixing ring; 28: First weight reduction hole; 29: Second weight reduction hole; 30: First through hole; 31: Second through hole; 32: First threaded through hole; 33: Second threaded through hole; 34: Rail; 35: Rail support platform; 36: Ballastless track slab. Detailed Implementation

[0024] The present invention will now be described in detail with reference to the embodiments. Identical components are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, while the terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0025] like Figures 1 to 4As shown, the ballastless rail movable welding climbing pad provided by this utility model includes an upper body 1, a lower body 2, a height component 3, a first rail bottom corner pressing block 4, and a second rail bottom corner pressing block 5. The upper body 1 includes an upper mounting plate 6 and a first fixing block 7 and a second fixing block 8 installed opposite to each other on the outer sides of the upper mounting plate 6. The lower body 2 includes a lower mounting plate 9 arranged parallel to the upper mounting plate 6. The height component 3 includes a first height plate 10 and a second height plate 11, which are installed opposite to each other between the upper mounting plate 6 and the lower mounting plate 9, with the length directions of the first height plate 10 and the second height plate 11 perpendicular to the length direction of the rail 34. The first rail bottom corner pressing block 4 and the second rail bottom corner pressing block 5 are located on both sides of the upper mounting plate 6, and the first rail bottom corner... The top surface of the pressure block 4 is provided with a first mounting hole 12, and the top surface of the first fixing block 7 is provided with a second mounting hole 13. The first track fastener bolt 14 on the rail support platform 35 passes through the first mounting hole 12 and the second mounting hole 13 in sequence and is threaded onto the rail support platform 35. The first rail bottom corner pressure block 4 is provided with a first limiting slope 15 for fitting the inclined surface of one side of the rail bottom corner of the rail 34. The top surface of the second rail bottom corner pressure block 5 is provided with a third mounting hole 16, and the top surface of the second fixing block 8 is provided with a fourth mounting hole 17. The second track fastener bolt on the rail support platform 35 passes through the third mounting hole 16 and the fourth mounting hole 17 in sequence and is threaded onto the rail support platform 35. The second rail bottom corner pressure block 5 is provided with a second limiting slope 18 for fitting the inclined surface of the other side of the rail bottom corner of the rail 34.

[0026] The ballastless rail movable welding ramp pad provided by this utility model includes an upper body 1, a lower body 2, a height component 3, a first rail bottom corner pressure block 4, and a second rail bottom corner pressure block 5. First, the first height plate 10 and the second height plate 11 are installed opposite each other between the upper mounting plate 6 and the lower mounting plate 9. The first rail bottom corner pressure block 4 and the second rail bottom corner pressure block 5 are respectively located on both sides of the upper body 1 and placed on the top surfaces of the first fixing block 7 and the second fixing block 8. Then, the first track fastener bolt 14 on the rail support platform 35 is threaded onto the rail support platform 35 after passing through the first mounting hole 12 and the second mounting hole 13 in sequence. The second track fastener bolt on the rail support platform 35 is threaded onto the rail support platform 35 after passing through the third mounting hole 16 and the fourth mounting hole 17 in sequence. Finally, the lower body 2 is placed inside the rail support platform 35 of the ballastless track slab 36, thereby installing the rail moving welding climbing pad on the existing rail support platform 35; loosen the first line fastener bolt 14 and the second line fastener bolt, so that the first limiting inclined surface 15 and the second limiting inclined surface 18 are set opposite to each other, place the rail 34 on the top surface of the upper mounting plate 6, and then set the first limiting inclined surface 15 and the second limiting inclined surface 18 opposite to each other, tighten the first line fastener bolt 14 and the second line fastener bolt, so that the first limiting inclined surface 15 is attached to the inclined surface on one side of the rail bottom corner of the rail 34, and the second limiting inclined surface 18 is attached to the inclined surface on the other side of the rail bottom corner of the rail 34, thereby limiting the rail bottom corner of the rail 34, realizing the lateral and longitudinal limiting and fixing of the rail 34 during the flash welding operation.

[0027] It should be noted that: the first track fastener bolt 14, the second track fastener bolt, the rail support platform 35, the ballastless track slab 36, and the ballastless track rail are all existing components on site. The rail support platform 35 is set on the ballastless track slab 36. When the first limiting inclined surface 15 and the second limiting inclined surface 18 are set opposite to each other, sufficient installation space can be provided for the rail 34. When the first limiting inclined surface 15 and the second limiting inclined surface 18 are set opposite to each other, the rail 34 can be limited.

[0028] In one embodiment of this utility model, the top surface of the first height plate 10 is attached to the bottom surface of the upper mounting plate 6, the bottom surface of the first height plate 10 is attached to the top surface of the lower mounting plate 9, the top surface of the second height plate 11 is attached to the bottom surface of the upper mounting plate 6, the bottom surface of the second height plate 11 is attached to the top surface of the lower mounting plate 9, and both the first height plate 10 and the second height plate 11 are attached to the space between the upper mounting plate 6 and the lower mounting plate 9, thereby increasing the structural stability of the ballastless rail moving welded climbing pad.

[0029] like Figure 3As shown, the height component 3 also includes a first connecting plate 19, with its two ends respectively installed between the first height plate 10 and the second height plate 11. In this embodiment, the first connecting plate 19 increases the connection strength between the first height plate 10 and the second height plate 11, thereby improving the structural stability of the ballastless rail moving welded climbing pad.

[0030] like Figure 1 and Figure 2 As shown, a first limiting boss 20 and a second limiting boss 21 are respectively provided on both sides of the upper mounting plate 6 along its length direction, and the distance between the first limiting boss 20 and the second limiting boss 21 is greater than the width of the rail 34. It should be noted that the length direction of the upper mounting plate 6 is perpendicular to the length direction of the rail 34. In this embodiment, when the rail 34 is installed on the top surface of the upper mounting plate 6, the first limiting boss 20 and the second limiting boss 21 can provide lateral limiting for the rail 34, improving the ease of use of the ballastless rail moving weld climbing pad.

[0031] like Figure 1 and Figure 2 As shown, the system also includes a first flexible connector 22 and a second flexible connector 23. One end of the first flexible connector 22 is mounted on the first rail bottom corner pressure block 4, and the other end is mounted on the first fixing block 7. One end of the second flexible connector 23 is mounted on the second rail bottom corner pressure block 5, and the other end is mounted on the second fixing block 8. In this embodiment, the first flexible connector 22 can prevent the first rail bottom corner pressure block 4 from falling off, and the second flexible connector 23 can prevent the second rail bottom corner pressure block 5 from falling off, thus improving the ease of use of the ballastless rail moving welded climbing pad.

[0032] like Figure 1 and Figure 2 As shown, the first flexible connector 22 has a first fixing ring 24 and a second fixing ring 25 at both ends. The first fixing ring 24 is threaded onto the first rail base corner pressure block 4, and the second fixing ring 25 is threaded onto the first fixing block 7. In this embodiment, the first flexible connector 22 is threaded onto the first rail base corner pressure block 4 and the first fixing block 7 via the first fixing ring 24 and the second fixing ring 25, respectively, which improves the ease of use of the ballastless rail moving welding ramp pad.

[0033] like Figure 1 and Figure 2As shown, the second flexible connector 23 has a third fixing ring 26 and a fourth fixing ring 27 at both ends. The third fixing ring 26 is threaded onto the second rail base corner pressure block 5, and the fourth fixing ring 27 is threaded onto the second fixing block 8. In this embodiment, the second flexible connector 23 is threaded onto the second rail base corner pressure block 5 and the second fixing block 8 via the third fixing ring 26 and the fourth fixing ring 27, respectively, which improves the ease of use of the ballastless rail moving welded climbing pad.

[0034] like Figure 1 and Figure 2 As shown, the top surface of the upper body 1 has a first weight-reducing through hole 28, and the top surface of the lower body 2 has a second weight-reducing through hole 29. In this embodiment, specifically, the first weight-reducing through hole 28 reduces the weight of the upper body 1, and the second weight-reducing through hole 29 reduces the weight of the lower body 2, thereby reducing the weight of the ballastless rail moving welding ramp pad and reducing the production cost of the ballastless rail moving welding ramp pad. On the other hand, the opening size of the weight-reducing through hole can conform to ergonomic design, making it convenient for operators to pick up the ballastless rail moving welding ramp pad by hand.

[0035] like Figure 1 and Figure 2 As shown, it also includes multiple first connecting bolts and multiple second connecting bolts. The top surface of the upper mounting plate 6 is provided with multiple first through holes 30, the bottom surface of the lower mounting plate 9 is provided with multiple second through holes 31, the top surface of the first height plate 10 is provided with multiple first threaded through holes 32, and the top surface of the second height plate 11 is provided with multiple second threaded through holes 33. The multiple first connecting bolts, multiple second connecting bolts, multiple first through holes 30, multiple second through holes 31, multiple first threaded through holes 32, and multiple second threaded through holes 33 are all provided in a one-to-one correspondence. The multiple first connecting bolts pass through the multiple first through holes 30 and are threaded into the multiple first threaded through holes 32, and the multiple second connecting bolts pass through the multiple second through holes 31 and are threaded into the multiple second threaded through holes 33. In this embodiment, specifically, the first through hole 30 can be a countersunk hole, the second through hole 31 can be a countersunk hole, and multiple first connecting bolts pass through multiple first through holes 30 and multiple first threaded through holes 32 of the upper mounting plate 6 in sequence and are then threaded into the multiple first threaded through holes 32. Multiple second connecting bolts pass through multiple second through holes 31 and multiple second threaded through holes 33 of the lower mounting plate 9 in sequence and are then threaded into the multiple second threaded through holes 33. This improves the ease of installation or disassembly of the ballastless rail moving welding ramp pad.

[0036] The ballastless rail movable welding climbing pad provided by this utility model includes an upper body 1, a lower body 2, a height component 3, a first rail bottom corner pressure block 4, and a second rail bottom corner pressure block 5. First, the first height plate 10 and the second height plate 11 are installed opposite to each other between the upper mounting plate 6 and the lower mounting plate 9. The first rail bottom corner pressure block 4 and the second rail bottom corner pressure block 5 are respectively located on both sides of the upper body 1 and placed on the top surfaces of the first fixing block 7 and the second fixing block 8. Then, the first track fastener bolt 14 on the rail support platform 35 is threaded onto the rail support platform 35 after passing through the first mounting hole 12 and the second mounting hole 13 in sequence. The second track fastener bolt on the rail support platform 35 is threaded onto the rail support platform 35 after passing through the third mounting hole 16 and the fourth mounting hole 17 in sequence. Finally, the lower body 2 is placed inside the rail support platform 35 of the ballastless track slab 36, thereby installing the ballastless rail moving welding ramp pad on the existing rail support platform 35; loosen the first line fastener bolt 14 and the second line fastener bolt, so that the first limiting inclined surface 15 and the second limiting inclined surface 18 are set opposite to each other, place the rail 34 on the top surface of the upper mounting plate 6, and then set the first limiting inclined surface 15 and the second limiting inclined surface 18 opposite to each other, tighten the first line fastener bolt 14 and the second line fastener bolt, so that the first limiting inclined surface 15 is attached to the inclined surface on one side of the rail bottom corner of the rail 34, and the second limiting inclined surface 18 is attached to the inclined surface on the other side of the rail bottom corner of the rail 34, thereby limiting the rail bottom corner of the rail 34, realizing the lateral and longitudinal limiting and fixing of the rail 34 during flash welding operation.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A type of movable welded ramp pad for ballastless steel rails, characterized in that, Includes upper body, lower body, height component, first rail bottom corner clamping block, and second rail bottom corner clamping block, wherein: The upper body includes an upper mounting plate and a first fixing block and a second fixing block that are mounted opposite to each other on the two outer sides of the upper mounting plate; The lower body includes a lower mounting plate arranged parallel to the upper mounting plate; The height component includes a first height plate and a second height plate, which are mounted opposite to each other between the upper mounting plate and the lower mounting plate, and the length direction of the first height plate and the second height plate is perpendicular to the length direction of the rail. The first rail bottom corner pressure block and the second rail bottom corner pressure block are respectively located on both sides of the upper mounting plate. The top surface of the first rail bottom corner pressure block is provided with a first mounting hole, and the top surface of the first fixing block is provided with a second mounting hole. The first track fastener bolt on the rail bearing platform passes through the first mounting hole and the second mounting hole in sequence and is threaded onto the rail bearing platform. One side of the first rail bottom corner pressure block is provided with a first limiting slope for fitting the inclined surface of the rail bottom corner of the rail. The top surface of the second rail base corner pressure block is provided with a third mounting hole, and the top surface of the second fixing block is provided with a fourth mounting hole. The second track fastener bolt on the rail support platform passes through the third mounting hole and the fourth mounting hole in sequence and is threaded onto the rail support platform. One side of the second rail base corner pressure block is provided with a second limiting slope for fitting the other side slope of the rail base corner of the rail.

2. The ballastless steel rail movable welding ramp pad according to claim 1, characterized in that, The top surface of the first height plate is attached to the bottom surface of the upper mounting plate, the bottom surface of the first height plate is attached to the top surface of the lower mounting plate, the top surface of the second height plate is attached to the bottom surface of the upper mounting plate, and the bottom surface of the second height plate is attached to the top surface of the lower mounting plate.

3. The ballastless steel rail movable welding ramp pad according to claim 1, characterized in that, The height component also includes a first connecting plate, the two ends of which are respectively installed between the first height plate and the second height plate.

4. The ballastless steel rail movable welding ramp pad according to claim 1, characterized in that, The upper mounting plate is provided with a first limiting boss and a second limiting boss on both sides along the length direction of the upper mounting plate, and the distance between the first limiting boss and the second limiting boss is greater than the width of the rail.

5. The ballastless steel rail movable welding ramp pad according to claim 1, characterized in that, It also includes a first flexible connector and a second flexible connector. One end of the first flexible connector is mounted on the first rail bottom corner block, and the other end of the first flexible connector is mounted on the first fixed block. One end of the second flexible connector is mounted on the second rail bottom corner block, and the other end of the second flexible connector is mounted on the second fixed block.

6. The ballastless steel rail moving welded ramp pad according to claim 5, characterized in that, The first flexible connector is provided with a first fixed lifting ring and a second fixed lifting ring at both ends. The first fixed lifting ring is threadedly installed on the first rail bottom corner pressure block, and the second fixed lifting ring is threadedly installed on the first fixed block.

7. The ballastless steel rail movable welding ramp pad according to claim 5, characterized in that, The second flexible connector is provided with a third fixed lifting ring and a fourth fixed lifting ring at both ends. The third fixed lifting ring is threadedly installed on the second rail bottom corner pressure block, and the fourth fixed lifting ring is threadedly installed on the second fixed block.

8. The ballastless rail moving welded ramp pad according to claim 1, characterized in that, The top surface of the upper body has a first weight-reducing through hole, and the top surface of the lower body has a second weight-reducing through hole.

9. The ballastless rail moving welded ramp pad according to claim 2, characterized in that, It also includes multiple first connecting bolts and multiple second connecting bolts. The top surface of the upper mounting plate is provided with multiple first through holes, and the bottom surface of the lower mounting plate is provided with multiple second through holes. The top surface of the first height plate is provided with multiple first threaded through holes, and the top surface of the second height plate is provided with multiple second threaded through holes. The multiple first connecting bolts, multiple second connecting bolts, multiple first through holes, multiple second through holes, multiple first threaded through holes, and multiple second threaded through holes are all provided in a one-to-one correspondence. The multiple first connecting bolts pass through the multiple first through holes and are threaded into the multiple first threaded through holes, and the multiple second connecting bolts pass through the multiple second through holes and are threaded into the multiple second threaded through holes.