Tool for installing elastic base plate in limiting groove of ballastless track base plate

Abstract

The utility model relates to a tool for installing an elastic base plate in a limiting groove of a ballastless track base plate, and relates to the technical field of ballastless track base plate construction, the tool comprises multiple sets of jacking assemblies, each jacking assembly comprises a connecting piece and supporting pieces arranged on the two sides of the connecting piece, the supporting pieces are movably connected with the connecting piece, and the elastic base plate is arranged in the limiting groove of the ballastless track base plate. The supporting piece is movably arranged; the supporting piece is used for abutting against the elastic base plate so that the peripheral side of the elastic base plate can abut against the corresponding side wall of the limiting groove. Through the uniform jacking effect of the jacking assembly, it is ensured that the elastic base plate makes full contact with the side wall of the limiting groove, the hollowing phenomenon caused by poor contact is eliminated, the contact tightness of the elastic base plate and the limiting groove is improved, cracks are prevented from being generated between the elastic base plate and the limiting groove after pasting, and therefore the yield of finished products is increased; the loss is reduced; the device is simple in design and light, and constructors can quickly complete installation of the elastic base plate, so that the construction efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of ballastless track base plate construction, and in particular to a tool for installing an elastic pad in a limiting groove of a ballastless track base plate. Background Art

[0002] In recent years, with my country's vigorous push into infrastructure development, railway projects, particularly high-speed railway construction, have made significant progress. The national operating railway mileage has exceeded 139,000 kilometers. The rapid expansion of the high-speed railway network has not only significantly improved rail transportation efficiency but also promoted regional economic development. In the construction of high-speed railway lines, ballastless track, as a track structure with superior performance, has become one of the key technologies for improving rail transportation safety, stability, and comfort.

[0003] During the construction of ballastless track, the connection and fixation of the base plate and the elastic pad are key links to ensure the normal operation of the entire track system. In particular, during the installation of the elastic pad, the design of the limiting groove set on the track base plate and its construction quality directly affect the operating performance of the track. The limiting groove is used to ensure the accurate fixation of the elastic pad, but due to its special design, the four corners of the limiting groove often become weak links in construction. The chamfered design of the four corners can easily lead to uneven concrete pouring or insufficient curing, resulting in hollowing, that is, the four corners of the limiting groove fail to fully contact the elastic pad, resulting in loose contact between the elastic pad and the base plate, affecting the stability and comfort of the track system.

[0004] Hollowing at the corners of the retaining groove is a common problem during construction, especially during the installation of the elastic pad. If the construction quality is not strictly controlled, defects can easily form in the chamfered portion of the retaining groove. These defects can lead to cracks and peeling, further affecting the tightness of the elastic pad and the base plate, resulting in a lack of effective contact between the two, and ultimately reducing the overall performance of the track system. Utility Model Content

[0005] In order to reduce the hollowing phenomenon at the four corners of the limiting groove and improve the contact tightness between the elastic pad and the limiting groove, the present application provides a tool for installing the elastic pad in the limiting groove of the ballastless track base plate.

[0006] This application adopts the following technical solutions:

[0007] A tool for installing an elastic pad in a limiting groove of a ballastless track base plate includes multiple sets of tightening components, each of which includes a connecting piece and support pieces arranged on both sides of the connecting piece. The support pieces are movably connected to the connecting piece and are movably arranged. The support pieces are used to abut against the elastic pad so as to tighten the peripheral side of the elastic pad against the corresponding side wall of the limiting groove.

[0008] By adopting the above technical solution, during construction, the tightening component is installed in the limiting groove, and the support component is adjusted and moved through the movably connected connecting parts and support components so that the support component moves to contact the elastic pad, and the position and strength of the support component are adjusted so that the support component presses the circumference of the elastic pad evenly and appropriately to ensure that the elastic pad fits tightly with the corresponding side wall of the limiting groove; through the uniform tightening action of the tightening component, it can ensure that the elastic pad maintains full contact with the side wall of the limiting groove, eliminate the hollowing phenomenon caused by poor contact, and improve the contact tightness between the elastic pad and the limiting groove; and the design of the device is simple and lightweight, so that construction personnel can complete the installation task of the elastic pad more quickly and effectively, thereby reducing construction time and labor intensity and improving construction efficiency.

[0009] In a specific feasible implementation scheme, a partition is provided in the connecting member, which divides the connecting member into two installation spaces. The two installation spaces are respectively arranged corresponding to the supporting member, one end of the supporting member is installed in the installation space, and the other end is abutted against the elastic pad.

[0010] By adopting the above technical solution, the partition design separates two installation spaces in the connector, reducing the possibility of mutual interference or improper adjustment between the supports, allowing them to be adjusted more stably during activities and avoiding possible tilting or uneven tightening.

[0011] In a specific possible implementation scheme, the connecting member is a threaded sleeve, and the supporting member includes a threaded rod and a first rubber head. One end of the threaded rod is threadedly connected to the threaded sleeve, and the other end is connected to the first rubber head, and the first rubber head abuts against the elastic pad.

[0012] By adopting the above technical solution, through the threaded connection of the threaded sleeve and the threaded rod, construction workers can accurately adjust the movement of the support member, thereby tightening the elastic pad and ensuring a firm fit between the elastic pad and the limiting groove, thereby improving the construction quality; through the cooperation of the threaded sleeve and the threaded rod, the support member can remain stable during the installation process, will not easily loosen or move, and makes the installation and disassembly of the support member more convenient.

[0013] In a specific possible implementation scheme, the connecting member is a hollow sleeve, and the supporting member includes a sliding rod and a second rubber head. One end of the sliding rod is inserted into the hollow sleeve and is slidingly connected to the hollow sleeve. The sliding rod and the hollow sleeve are connected by a fixing member, and the other end of the sliding rod is connected to the second rubber head, which abuts against the elastic pad.

[0014] By adopting the above technical solution, by adjusting the sliding position of the sliding rod in the hollow sleeve, the contact force and pressure between the second rubber head and the elastic pad can be accurately controlled to avoid excessive or insufficient pressure, thereby ensuring stable contact between the elastic pad and other components; the combined design of the hollow sleeve and the sliding rod makes the installation process easier, and construction workers do not need complicated tools or methods, and can complete the installation through simple sliding and adjustment, shortening the installation time and reducing the difficulty of operation.

[0015] In a specific possible implementation scheme, the fixing member includes a fixing nail and a fixing hole provided on the hollow sleeve, the fixing nail passes through the fixing hole and abuts against the sliding rod, and the fixing nail is threadedly connected to the fixing hole.

[0016] By adopting the above technical solution, the threaded connection allows the fixing nails to be easily screwed in or out, making it convenient for construction workers to quickly adjust and fix the position of the sliding rod without the need for complicated tools or operations; and the threaded connection method can provide stronger fixing force to prevent the sliding rod from loosening during use.

[0017] In a specific embodiment, the first rubber head and the second rubber head are hard rubber heads, and the material of the hard rubber heads is polyurethane rubber.

[0018] By adopting the above technical solution, due to the elasticity of the polyurethane rubber, the hard rubber head can provide a more uniform and stable pressure distribution when in contact with the elastic pad, ensuring that the first rubber head, the second rubber head and the elastic pad are in closer contact, thereby ensuring stable cooperation between the two; it can also prevent the first rubber head and the second rubber head from being scratched or deformed when in contact with the elastic pad, protecting the elastic pad from damage.

[0019] In a specific embodiment, the first rubber head and the second rubber head are provided with a flat surface, and the flat surface is used to contact the side wall of the elastic pad.

[0020] By adopting the above technical solution, planar contact can increase the contact area, improve the uniformity of contact, and reduce damage or instability caused by uneven pressure; and the flat design combined with the physical properties of polyurethane rubber can provide higher durability and stability, ensuring the reliability and performance of the device in long-term use.

[0021] In a specific possible implementation manner, the first rubber head and the second rubber head are provided with chamfered surfaces, and the chamfered surfaces are used to contact the chamfers of the four corners of the elastic pad.

[0022] By adopting the above technical solution, the rounded corners of the first rubber head and the second rubber head are in close contact with the four corners of the pad, making the contact smoother and more uniform, avoiding excessive pressure concentrated on a certain point, and reducing the risk of local stress concentration and damage; and the design of the rounded surface can increase the contact area and fit with the four corners of the elastic pad, thereby improving the contact stability and ensuring that it can maintain a good working condition during long-term use.

[0023] In a specific possible implementation manner, a plurality of groups of the tightening assemblies are arranged in the transverse and longitudinal directions to tighten the peripheral side of the elastic pad against the corresponding side wall of the limiting groove.

[0024] By adopting the above technical solution, multiple groups of tightening components are arranged in the horizontal and vertical directions, and the tightening force can be applied more evenly to the circumferential side of the elastic pad, thereby avoiding excessive wear or deformation caused by concentrated force in a single direction or local area, extending the service life, and reducing the relative movement or looseness between the elastic pad and the limiting groove, thereby enhancing the overall stability of the device.

[0025] In a specific possible implementation manner, a plurality of groups of the tightening assemblies are crosswise arranged to tighten the chamfers of the four corners of the elastic pad onto the corresponding chamfers of the limiting groove.

[0026] By adopting the above technical solution, multiple groups of tightening components are cross-arranged, and the chamfers of the four corners of the elastic pad can be docked and tightened with the corresponding chamfers of the limiting groove, thereby ensuring the positioning accuracy of the four corners of the pad, so that the pad can be firmly fixed in the groove, avoiding displacement or looseness caused by improper installation, and avoiding deflection or excessive local pressure that may be caused by one-way tightening.

[0027] In a specific possible implementation scheme, in the multiple groups of the tightening assemblies arranged crosswise, the connecting members are provided with through holes, and the through holes are fixed by bolt connection.

[0028] By adopting the above technical solution, the connecting parts can be firmly fixed together through the through holes and bolt connections, thereby ensuring that the cross-arranged tightening components can be firmly connected together, improving the structural instability caused by loosening or displacement of the tightening components during use, and ensuring the stability and reliability of the device during use.

[0029] To sum up, the present application includes at least one of the following beneficial technical effects: the present application can ensure that the elastic pad maintains full contact with the side wall of the limiting groove through the uniform tightening action of the tightening component, eliminate the hollowing phenomenon caused by poor contact, improve the contact tightness between the elastic pad and the limiting groove, effectively prevent cracks from occurring between the elastic pad and the limiting groove after pasting, improve the qualified rate of finished products, and reduce losses; and the design of the present device is simple and lightweight, so that construction personnel can quickly complete the installation of the elastic pad, thereby reducing construction time and labor intensity and improving construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural diagram of the installation tool in Example 1 of the present application.

[0031] Figure 2 It is a structural diagram of the installation tool in Example 2 of the present application.

[0032] Figure 3 This is a structural diagram of the installation tool in Example 3 of the present application.

[0033] Figure 4 This is a structural diagram of the installation tool in Example 4 of the present application.

[0034] Explanation of the accompanying drawings: 1. Tightening assembly; 2. Connecting piece; 21. Threaded sleeve; 22. Hollow sleeve; 3. Support member; 31. Threaded rod; 32. First rubber head; 33. Sliding rod; 34. Second rubber head; 4. Elastic pad; 5. Partition; 6. Fixing piece; 61. Fixing nail; 7. Bolt. DETAILED DESCRIPTION

[0035] The following is combined with Figures 1-4 This application is described in further detail.

[0036] Example 1

[0037] Reference Figure 1 The embodiment of the present application discloses a tool for installing an elastic pad in a limiting groove of a ballastless track base plate. In this embodiment, the limiting groove includes but is not limited to a rectangular groove, and the elastic pad 4 is arranged along the circumferential side wall of the limiting groove;

[0038] The installation tool includes multiple sets of tightening components 1, each of which includes a connecting member 2 and supporting members 3 provided on both sides of the connecting member 2. The two supporting members 3 are movably connected to the connecting member 2, and the supporting members 3 are movably provided.

[0039] The support member 3 is used to abut against the elastic pad 4 to tighten the peripheral side of the elastic pad 4 against the corresponding side wall of the limiting groove;

[0040] During the construction of the ballastless track base plate, the tightening assembly 1 is installed in the limiting groove to ensure that the support member 3 of the tightening assembly 1 is in contact with the four sides of the elastic pad 4. Specifically, the support member 3 is adjusted and moved through the movable connection between the connecting member 2 and the support member 3 so that the support member 3 moves to contact the elastic pad 4, and the position and strength of the support member 3 are adjusted so that the support member 3 evenly and appropriately tightens the circumference of the elastic pad 4, ensuring that the elastic pad 4 is tightly fitted with the corresponding side wall of the limiting groove to complete the installation;

[0041] In subsequent construction, due to the tightening effect of the tightening component 1, it can ensure that the elastic pad 4 maintains full contact with the side wall of the limiting groove, eliminating the hollowing phenomenon caused by poor contact; and the elastic pad 4 will not have local unevenness or warping during the installation process, ensuring a uniform and firm bond between the elastic pad 4 and the limiting groove, preventing cracks or peeling between the elastic pad 4 and the limiting groove after pasting, and avoiding possible damage or functional failure during long-term use.

[0042] In this embodiment, the pressing components 1 are provided in four groups. Among the four groups of pressing components 1, two groups are arranged along the horizontal axis direction, and the other two groups are arranged along the longitudinal axis direction. The four groups of pressing components 1 respectively press the four circumferential sides of the elastic pad 4 against the corresponding side walls of the limiting groove.

[0043] By arranging multiple groups of tightening components 1 in the horizontal and vertical directions, the tightening force can be applied more evenly to the circumference of the elastic pad 4, thereby avoiding excessive wear or deformation caused by concentrated force in a single direction or local area, extending the service life, and reducing the relative movement or looseness between the elastic pad 4 and the limiting groove, thereby enhancing the overall stability of the device; and the way of arranging the tightening components 1 in the horizontal and vertical directions makes the scheme adaptable to the design of elastic pads 4 and limiting grooves of different sizes and shapes.

[0044] A partition 5 is provided inside the connector 2, which divides the connector 2 into two installation spaces. The two installation spaces are respectively provided corresponding to the support member 3. One end of the support member 3 is installed in the installation space, and the other end abuts against the elastic pad 4.

[0045] Through the design of the partition 5, two installation spaces are separated in the connecting member 2, so that each support member 3 can move in an independent space, thereby enhancing the stability of the support member 3; and can reduce the possibility of mutual interference or improper adjustment between the supports 3, so that they can be adjusted more stably during the movement, avoiding possible tilting or uneven tightening.

[0046] The connecting member 2 is a threaded sleeve 21, and the supporting member 3 includes a threaded rod 31 and a first rubber head 32. One end of the threaded rod 31 is threadedly connected to the threaded sleeve 21, and the other end is connected to the first rubber head 32. The first rubber head 32 abuts against the elastic pad 4.

[0047] Through the threaded connection between the threaded sleeve 21 and the threaded rod 31, construction personnel can adjust the movement of the support member 3, thereby tightening the elastic pad 4, ensuring that the elastic pad 4 fits firmly with the limiting groove, thereby improving the construction quality; and allowing the support member 3 to remain stable during the installation process, and will not easily loosen or move, and making the installation and disassembly of the support member 3 more convenient.

[0048] The first rubber head 32 is a hard rubber head, and the material of the hard rubber head is polyurethane rubber; polyurethane rubber has high wear resistance, so that the first rubber head 32 can be used for a long time without being easily worn, thereby extending the service life of the component; and due to the elasticity of polyurethane rubber, the hard rubber head can provide a more uniform and stable pressure distribution when in contact with the elastic pad 4, ensuring that the contact between the first rubber head 32 and the elastic pad 4 is closer; it can also prevent the first rubber head 32 from being scratched or deformed when in contact with the elastic pad 4, protecting the elastic pad 4 from damage.

[0049] The first rubber head 32 is provided with a flat surface, which is used to contact the side wall of the elastic pad 4; the flat contact can increase the contact area, improve the uniformity and stability of the contact; and the flat design combined with the physical properties of polyurethane rubber can provide higher durability and stability, ensuring the reliability and performance of the device in long-term use.

[0050] The implementation principle of Example 1 is as follows: during the construction of the ballastless track base plate, the jacking assembly 1 is installed in the limiting groove to ensure that the support member 3 of the jacking assembly 1 is in contact with the four sides of the elastic pad 4. Specifically, the construction personnel rotate the threaded rod 31 to adjust the position of the threaded rod 31 so that the plane of the first rubber head 32 is in close contact with the peripheral side of the elastic pad 4. By adjusting the rotation of the threaded rod 31, the contact force between the first rubber head 32 and the elastic pad 4 can be controlled, thereby ensuring that the elastic pad 4 is in close contact with the side wall of the limiting groove. At this time, the threaded rod 31 is threadedly connected and fixed with the threaded sleeve 21 to complete the installation.

[0051] In subsequent construction, the device can ensure that the elastic pad 4 maintains full contact with the side wall of the limiting groove through the tightening action of the tightening component 1, eliminating the hollowing phenomenon caused by poor contact. The tightening component 1 prevents the elastic pad 4 from being locally uneven or warped during the installation process, thereby improving the contact tightness between the elastic pad 4 and the limiting groove, and effectively preventing cracks from occurring between the elastic pad 4 and the limiting groove after pasting, thereby improving the qualified rate of finished products and reducing losses.

[0052] Example 2

[0053] With reference to Figure 2 The difference between the embodiment and embodiment 1 is that the connecting piece 2 is a hollow sleeve 22, the supporting piece 3 comprises a sliding rod 33 and a second rubber head 34, one end of the sliding rod 33 is inserted into the hollow sleeve 22 and is in sliding connection with the hollow sleeve 22, the sliding rod 33 and the hollow sleeve 22 are connected through the fixing piece 6, the other end of the sliding rod 33 is connected with the second rubber head 34, and the second rubber head 34 is in abutment with the elastic pad 4.

[0054] By adjusting the sliding position of the sliding rod 33 in the hollow sleeve 22, the contact force and pressure between the second rubber head 34 and the elastic pad 4 can be controlled, so that excessive or insufficient pressure is avoided, and stable contact between the elastic pad 4 and other components is ensured. The installation process is more convenient, and the installation can be completed through simple sliding and adjustment, the installation time is shortened, and the operation difficulty is reduced.

[0055] The fixing piece 6 comprises a fixing nail 61 and a fixing hole provided on the hollow sleeve 22. In the embodiment, the fixing hole is a threaded hole, the fixing nail 61 passes through the fixing hole and abuts against the sliding rod 33, and the fixing nail 61 is in threaded connection with the fixing hole.

[0056] During installation, when the fixing nail 61 passes through the fixing hole, it will abut against the surface of the sliding rod 33, so that the sliding rod 33 is fixed. In this process, the fixing nail 61 is in threaded connection with the fixing hole. The threaded connection enables the fixing nail 61 to be easily screwed in or taken out, so that the position of the sliding rod 33 can be quickly adjusted and fixed by the construction personnel without the need for complex tools or operations. In addition, the threaded connection can provide stronger fixing force to prevent the sliding rod 33 from loosening during use.

[0057] The second rubber head 34 is a hard rubber head, and the material of the hard rubber head is polyurethane rubber. The second rubber head 34 is provided with a flat surface for contacting the side wall of the elastic pad 4. The flat surface contact can increase the contact area and improve the uniformity and stability of the contact.

[0058] The implementation principle of embodiment 2 is that, during installation, the construction personnel removes the fixing nail 61, moves the sliding rod 33, moves the sliding rod 33 in the hollow sleeve 22, adjusts the position of the sliding rod 33, and makes the second rubber head 34 tightly contact the circumferential side of the elastic pad 4. By moving the sliding rod 33, the contact force between the second rubber head 34 and the elastic pad 4 can be controlled, so that the elastic pad 4 is tightly attached to the side wall of the limiting groove. When the sliding rod 33 moves to the target position, the fixing nail 61 is passed through the fixing hole of the hollow sleeve 22 and is in threaded connection with the fixing hole. One end of the fixing nail 61 that passes out of the fixing hole abuts against the sliding rod 33, so that the sliding rod 33 is fixed in the hollow sleeve 22, and the installation is completed.

[0059] By sliding and adjusting the position of the sliding rod 33 in the hollow sleeve 22, the contact force and pressure between the second rubber head 34 and the elastic pad 4 can be controlled to avoid excessive or insufficient pressure, ensuring stable contact between the elastic pad 4 and other components; and making the installation process easier, the installation can be completed by simple sliding and adjustment, shortening the installation time and reducing the difficulty of operation.

[0060] Example 3

[0061] Reference Figure 3 The difference between this embodiment and embodiment 1 is that, in the installation tool: multiple sets of tightening components 1 are arranged crosswise. In this embodiment, the tightening components 1 are provided in two sets, and the two sets of tightening components 1 are arranged crosswise to tighten the chamfers of the four corners of the elastic pad 4 to the corresponding chamfers of the limiting groove;

[0062] In this embodiment, in the cross-arranged multiple groups of tightening assemblies 1, the center position of the connecting member 2 is provided with a through hole, and the through holes are connected and fixed by bolts 7; through the through hole and the bolt 7, the connecting members 2 can be firmly fixed together, thereby ensuring that the cross-arranged tightening assemblies 1 can be firmly connected, ensuring the stability and reliability of the device during use, and making the structure of the device more solid and reliable;

[0063] In this embodiment, the first rubber head 32 in the support member 3 is provided with a chamfered surface, which is used to contact the chamfered corners of the four corners of the elastic pad 4. The design of the chamfered surface can increase the contact area and fit between the first rubber head 32 and the four corners of the elastic pad 4, so that the chamfered corners of the four corners of the first rubber head 32 can closely contact the limiting groove, thereby improving contact stability and ensuring that it can maintain good working condition during long-term use.

[0064] By designing two sets of tightening components 1 arranged crosswise, the chamfers of the four corners of the elastic pad 4 are docked and tightened with the corresponding chamfers of the limiting groove, ensuring the positioning accuracy of the four corners of the pad, so that the pad can be firmly fixed in the groove, avoiding the problem of deviation or looseness caused by improper installation, and avoiding the deflection or excessive local pressure caused by one-way tightening; and the crosswise tightening components 1 can adapt to elastic pads 4 and limiting grooves of different shapes and sizes. Even if there are slight errors or tolerances in the design, cross tightening can still ensure precise fit.

[0065] Example 4

[0066] Reference Figure 4The difference between this embodiment and embodiment 2 is that, in the installation tool: multiple sets of tightening components 1 are arranged crosswise. In this embodiment, the tightening components 1 are provided in two sets, and the two sets of tightening components 1 are arranged crosswise to tighten the chamfers of the four corners of the elastic pad 4 to the corresponding chamfers of the limiting groove;

[0067] In this embodiment, in the cross-arranged multiple groups of tightening assemblies 1, the center position of the connecting member 2 is provided with a through hole, and the through holes are connected and fixed by bolts 7; through the through hole and the bolt 7, the connecting members 2 can be firmly fixed together, thereby ensuring that the cross-arranged tightening assemblies 1 can be firmly connected, ensuring the stability and reliability of the device during use, and making the structure of the device more solid and reliable;

[0068] In this embodiment, the second rubber head 34 in the support member 3 is provided with a chamfered surface, which is used to contact the chamfered corners of the four corners of the elastic pad 4. The design of the chamfered surface can increase the contact area and fit between the second rubber head 34 and the four corners of the elastic pad 4, so that the chamfered corners of the four corners of the second rubber head 34 can fit closely with the limiting groove, thereby improving contact stability and ensuring that it maintains good working condition during long-term use.

[0069] By designing two sets of tightening components 1 that are cross-arranged, the chamfers of the four corners of the elastic pad 4 are docked and tightened with the corresponding chamfers of the limiting groove, ensuring the positioning accuracy of the four corners of the pad, so that the pad can be firmly fixed in the groove, avoiding deviation or looseness caused by improper installation, and avoiding deflection or excessive local pressure that may be caused by one-way tightening.

[0070] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A tool for installing an elastic pad in a limiting groove of a ballastless track base plate, characterized by: The invention comprises a plurality of tightening assemblies (1), wherein the tightening assemblies (1) comprise a connecting member (2) and a supporting member (3) provided on both sides of the connecting member (2), wherein the supporting member (3) is movably connected to the connecting member (2), and the supporting member (3) is movably provided; the supporting member (3) is used to abut against an elastic pad (4) so ​​as to tighten the peripheral side of the elastic pad (4) against the corresponding side wall of the limiting groove.

2. The tool for installing the elastic pad in the limiting groove of the ballastless track base plate according to claim 1, characterized in that: A partition (5) is provided in the connecting member (2), and the partition (5) divides the connecting member (2) into two installation spaces. The two installation spaces are respectively provided corresponding to the supporting member (3). One end of the supporting member (3) is installed in the installation space, and the other end is in contact with the elastic pad (4).

3. The tool for installing the elastic pad in the limiting groove of the ballastless track base plate according to claim 2, characterized in that: The connecting member (2) is a threaded sleeve (21), and the supporting member (3) comprises a threaded rod (31) and a first rubber head (32). One end of the threaded rod (31) is threadedly connected to the threaded sleeve (21), and the other end is connected to the first rubber head (32). The first rubber head (32) abuts against the elastic pad (4).

4. The tool for installing the elastic pad in the limiting groove of the ballastless track base plate according to claim 3, characterized in that: The first rubber head (32) is provided with a plane or a chamfered surface, the plane being used to contact the side wall of the elastic pad (4), and the chamfered surface being used to contact the chamfers of the four corners of the elastic pad (4).

5. The tool for installing the elastic pad in the limiting groove of the ballastless track base plate according to claim 2, characterized in that: The connecting member (2) is a hollow sleeve (22), and the supporting member (3) includes a sliding rod (33) and a second rubber head (34). One end of the sliding rod (33) is inserted into the hollow sleeve (22) and is slidably connected to the hollow sleeve (22). The sliding rod (33) and the hollow sleeve (22) are connected through a fixing member (6). The other end of the sliding rod (33) is connected to the second rubber head (34), and the second rubber head (34) abuts against the elastic pad (4).

6. The tool for installing the elastic pad in the limiting groove of the ballastless track base plate according to claim 5, characterized in that: The fixing member (6) comprises a fixing nail (61) and a fixing hole provided on the hollow sleeve (22); the fixing nail (61) passes through the fixing hole and abuts against the sliding rod (33); the fixing nail (61) is threadedly connected to the fixing hole.

7. The tool for installing the elastic pad in the limiting groove of the ballastless track base plate according to claim 5, characterized in that: The second rubber head (34) is provided with a plane or a chamfered surface, the plane being used to contact the side wall of the elastic pad (4), and the chamfered surface being used to contact the chamfers of the four corners of the elastic pad (4).

8. The tool for installing the elastic pad in the limiting groove of the ballastless track base plate according to claim 1, characterized in that: Multiple groups of the tightening components (1) are arranged in the horizontal and vertical directions to tighten the peripheral side of the elastic pad (4) against the corresponding side wall of the limiting groove.

9. The tool for installing the elastic pad in the limiting groove of the ballastless track base plate according to claim 1, characterized in that: A plurality of groups of the tightening components (1) are cross-arranged to tighten the chamfers of the four corners of the elastic pad (4) onto the corresponding chamfers of the limiting groove.

10. The tool for installing the elastic pad in the limiting groove of the ballastless track base plate according to claim 9, characterized in that: In the multiple groups of the tightening assemblies (1) arranged crosswise, the connecting members (2) are provided with through holes, and the through holes are connected and fixed by bolts (7).

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