A subway track foundation reinforcing device
By introducing a combination of reinforcing seats, extension plates, and threaded columns into the subway track foundation, the connection strength is enhanced, and a replaceable mounting bracket is designed, thus solving the problem of loose connections in the subway track foundation and improving stability and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TAIYUAN CHINA RAILWAY RAIL TRANSIT CONSTR & OPERATION CO LTD
- Filing Date
- 2025-07-29
- Publication Date
- 2026-07-21
AI Technical Summary
Traditional subway track foundations have weak connection strength, fasteners are prone to loosening, requiring regular maintenance, which affects the stability and safety of the subway tracks.
The combination structure of reinforcing seat, extension plate, threaded post and mounting nut enhances the connection strength between the pad and the reinforcing plate, and the design of replaceable mounting bracket structure facilitates the replacement of worn parts.
It improves the strength of the subway track foundation connection, simplifies the maintenance process, extends the service life of equipment, and ensures the stability and safety of the subway track.
Smart Images

Figure CN224531352U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of subway foundation technology, and in particular relates to a subway track foundation reinforcement device. Background Technology
[0002] The subway track foundation is the basic component of the subway track system. It bears the track structure, train load, and various dynamic and static forces generated by train operation. The design and construction quality of the foundation directly affect the stability, safety, and service life of the subway track.
[0003] The following problems exist in the application of subway track foundations on the market: Traditional subway track foundations are fixed to the soft rails by multiple sets of fasteners. However, the connection strength between the base plate and the reinforcing plate is weak. After the subway track has been used for a long time, the fasteners will loosen and operators will need to carry out regular maintenance. Therefore, the reinforcement effect between the connection structures is weak when in use. Utility Model Content
[0004] The purpose of this utility model is to provide a subway track foundation reinforcement device to solve the technical problems mentioned in the background art.
[0005] To achieve the above objectives, the specific technical solution of this utility model is as follows: A subway track foundation reinforcement device includes a pad and a base. The top of the pad is connected to the base, and the bottom of the base is provided with a reinforcing seat. The reinforcing seats are symmetrically distributed. The top of the reinforcing seat is provided with a flexible rail, and reinforcing ribs are installed on the outer side of the flexible rail. The top of the reinforcing seat is connected to a reinforcing plate, and the side of the reinforcing plate is provided with an extension plate. The top of the pad is provided with a mounting frame, and the extension plate and the mounting frame are connected to a threaded post. The threaded post is connected to a mounting nut by a thread, and the mounting nuts are symmetrically distributed.
[0006] Preferably, the mounting bracket has an insert plate at the bottom, which is embedded inside the pad. The mounting bracket has a strip plate on the side and a connecting plate on the outer side. A fastening screw passes through the inside of the connecting plate and passes through the insert plate. A threaded groove is formed inside the pad, and the fastening screw is threadedly connected to the threaded groove.
[0007] Preferably, a threaded rod is connected to the top of the base, a reinforcing seat is sleeved on the outside of the threaded rod, and a lock nut is threaded onto the outside of the threaded rod.
[0008] Preferably, the extension plate has a through hole inside, and the threaded post passes through the through hole.
[0009] Preferably, the pad has a slot inside and a circular hole on the outside, the insert plate is embedded inside the slot, and the fastening screw passes through the circular hole.
[0010] Preferably, the mounting bracket has a through hole on its side, and a threaded post passes through the inside of the through hole.
[0011] The subway track foundation reinforcement device of this utility model has the following advantages:
[0012] 1. This subway track foundation reinforcement device involves installing an extension plate on the outside of the reinforcement plate, and installing threaded posts and mounting nuts on the outside of the extension plate. An installation frame is provided on the inside of the extension plate to facilitate the reinforcement of the foundation structure. After the pad plate and the soft rail are initially fixed with fasteners, the threaded posts are removed again, passing through the extension plate and the installation frame. The mounting nuts on the outside of the threaded posts are then tightened. This strengthens the strength between the pad plate and the reinforcement plate and improves the connection strength between the connecting structures during use.
[0013] 2. This subway track foundation reinforcement device features an insert plate at the bottom of the mounting frame and a connecting plate on the side of the mounting frame. Fastening screws pass through the connecting plate and the insert plate, facilitating the replacement of deformed mounting frame structures. When the mounting frame is deformed, maintenance personnel can reverse the tightening of the fasteners to remove the mounting frame and then insert the bottom insert plate into the slot of the new mounting frame. The fasteners are then tightened again for installation. This device is convenient for replacing damaged mounting structures and is easy to operate. Attached Figure Description
[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the reinforcing plate structure of this utility model;
[0017] Figure 3 This is a schematic diagram of the threaded groove structure of this utility model;
[0018] Figure 4 This is a schematic diagram of the mounting bracket structure of this utility model.
[0019] The markings in the diagram are as follows: 1. Pad; 2. Base; 3. Reinforcing seat; 4. Flexible rail; 5. Reinforcing rib; 6. Reinforcing plate; 7. Extension plate; 8. Threaded post; 9. Mounting nut; 10. Through hole; 11. Mounting bracket; 12. Insert plate; 13. Slot; 14. Connecting plate; 15. Circular hole; 16. Fastening screw; 17. Strip plate; 18. Threaded groove; 19. Threaded rod; 20. Locking nut; 21. Through hole. Detailed Implementation
[0020] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.
[0021] In the description of the embodiments of this utility model, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.
[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0023] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.
[0024] The following disclosure provides many different implementations or examples for different structures of the embodiments of the present invention. To simplify the disclosure of the embodiments of the present invention, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the embodiments of the present invention. Furthermore, reference numerals and / or reference letters may be repeated in different examples of the embodiments of the present invention; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various implementations and / or arrangements discussed.
[0025] To better understand the purpose, structure, and function of this utility model, the following description, in conjunction with the accompanying drawings, provides a more detailed account of a subway track foundation reinforcement device.
[0026] like Figure 1-4 As shown, this utility model discloses a subway track foundation reinforcement device, comprising a pad 1 and a base 2. The top of the pad 1 is connected to the base 2, and the bottom of the base 2 is provided with a reinforcing seat 3. The reinforcing seats 3 are symmetrically distributed, and a flexible rail 4 is provided on the top of the reinforcing seat 3. Reinforcing ribs 5 are installed on the outer side of the flexible rail 4. Due to the installation of reinforcing ribs 5, the strength between the flexible rail 4 and the reinforcing plate can be improved. The top of the reinforcing seat 3 is connected to a reinforcing plate 6, and an extension plate 7 is provided on the side of the reinforcing plate 6. A mounting frame 11 is provided on the top of the pad 1, and the extension plate 7 and the mounting frame 11 are connected. The internal threaded post 8 of plate 1 is connected to the external threaded connection of the threaded post 8 with the mounting nut 9. The mounting nuts 9 are symmetrically distributed. By installing the extension plate 7 on the outside of the reinforcing plate 6, and installing the threaded post 8 and mounting nut 9 on the outside of the extension plate 7, and providing the mounting bracket 11 on the inside of the extension plate 7, after the pad plate 1 and the flexible rail 4 are initially fixed with fasteners, the threaded post 8 is removed again to pass through the extension plate 7 and the mounting bracket 11, and the mounting nut 9 on the outside of the threaded post 8 is tightened. This can strengthen the strength between the pad plate 1 and the reinforcing plate 6.
[0027] The mounting bracket 11 has an insert plate 12 at its bottom, which is embedded inside the pad 1. The mounting bracket 11 has a strip plate 17 on its side and a connecting plate 14 on its outer side. A fastening screw 16 passes through the inside of the connecting plate 14 and the insert plate 12. A threaded groove 18 is opened inside the pad 1, and the fastening screw 16 is threaded into the threaded groove 18. By providing an insert plate 12 at the bottom of the mounting bracket 11 and installing a connecting plate 14 on the side of the mounting bracket 11, and fastening screws 16 passing through the inside of the connecting plate 14 and the insert plate 12, when the mounting bracket 11 is deformed, the maintenance personnel can reverse the tightening of the fasteners to remove the mounting bracket 11 and take out a new mounting structure. The bottom insert plate 12 is then embedded inside the slot 13, and the fasteners can be tightened again for installation. The subsequent operation is simple.
[0028] The top of the base 2 is connected to a threaded rod 19, the outside of which is fitted with a reinforcing seat 3. The threaded rod 19 is connected to a locking nut 20 by external threads. The installation of the threaded rod 19 and the locking nut 20 facilitates the tightening of fasteners, thus connecting and fixing the base 2 and the reinforcing seat 3.
[0029] The extension plate 7 has a through hole 10 inside, and the threaded post 8 passes through the through hole 10. Because of the through hole 10, it is easy for the threaded post 8 to pass through the extension plate 7.
[0030] The pad 1 has a slot 13 inside and a circular hole 15 on the outside. The insert plate 12 is embedded in the slot 13 and the fastening screw 16 passes through the circular hole 15. The slot 13 facilitates the insertion of the insert plate 12 at the bottom of the mounting bracket 11 into the slot 13.
[0031] A through hole 21 is provided on the side of the mounting bracket 11, and a threaded post 8 passes through the inside of the through hole 21. Because of the through hole 21, it is convenient for fasteners to pass through the inside of the mounting bracket 11.
[0032] The working principle of this subway track foundation reinforcement device is as follows: When using this subway track, the workers first install the pad 1 in a suitable position, then insert the reinforcing seat 3 through the threaded rod 19 at the top of the base 2, and then tighten the external locking nut 20 to fix the two structures. Next, the flexible rail 4 is installed inside the reinforcing seat 3, and the reinforcing rib 5 is removed and installed on both sides of the flexible rail 4. The threaded post 8 is inserted through the mounting holes inside both, and then the external mounting nut 9 is tightened to fix it. However, in order to strengthen the strength between the structures, an extension plate 7 is installed on the outside of the reinforcing plate 6, and the threaded post 8 and mounting nut 9 are installed on the outside of the extension plate 7. A mounting bracket 11 is provided on the inside of the extension plate 7. After the pad 1 and the flexible rail 4 are initially fixed with fasteners, the threaded post 8 is removed again and inserted through the extension plate 7 and the mounting bracket 11. Then the external mounting nut 9 of the threaded post 8 is tightened. This can strengthen the strength between the pad 1 and the reinforcing plate 6, and improve the connection strength between the connecting structures during use. Furthermore, to facilitate the replacement of damaged structures when the mounting bracket 11 becomes deformed, an insert plate 12 is provided at the bottom of the mounting bracket 11, and a connecting plate 14 is installed on the side of the mounting bracket 11. A fastening screw 16 passes through the inside of the connecting plate 14 and the insert plate 12. A slot 13 is opened at the top of the pad 1, and a threaded groove 18 is opened inside the slot 13. When the mounting bracket 11 is severely damaged, first turn the mounting nut 9 outside the threaded post 8 in the reverse direction to remove the threaded post 8 from the through hole 21. Then, the maintenance personnel turn the fastening threaded rod 19 in the reverse direction to remove it from the circular hole 15. Then, the insert plate 12 at the bottom of the mounting bracket 11 is removed from the inside of the pad 1. Next, a new mounting bracket 11 is taken out, and the insert plate 12 at the bottom is embedded in the slot 13. Then, the fastening screw 16 is taken out, first passing through the circular hole 15 on the side of the pad 1, and then the fastening screw 16 is turned to connect with the threaded groove 18. This makes it convenient to replace the damaged mounting structure during application, and the operation is simple.
[0033] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.
Claims
1. A subway track foundation reinforcement device, comprising a pad (1) and a base (2), wherein the top of the pad (1) is connected to the base (2), characterized in that: The base (2) has a reinforcing seat (3) at the bottom, the reinforcing seats (3) are symmetrically distributed, the top of the reinforcing seat (3) has a flexible rail (4), the outer side of the flexible rail (4) is fitted with reinforcing ribs (5), the top of the reinforcing seat (3) is connected to a reinforcing plate (6), the side of the reinforcing plate (6) is provided with an extension plate (7), the top of the pad (1) is provided with a mounting bracket (11), the extension plate (7) and the mounting bracket (11) are connected to a threaded post (8), the threaded post (8) is connected to a mounting nut (9) by an external thread, and the mounting nuts (9) are symmetrically distributed.
2. The subway track foundation reinforcement device according to claim 1, characterized in that: The mounting bracket (11) has a bottom plate (12) embedded in the inside of the pad (1). The mounting bracket (11) has a strip plate (17) on its side and a connecting plate (14) on its outer side. A fastening screw (16) passes through the inside of the connecting plate (14) and passes through the plate (12). A threaded groove (18) is opened inside the pad (1) and the fastening screw (16) is threadedly connected to the threaded groove (18).
3. The subway track foundation reinforcement device according to claim 1, characterized in that: The top of the base (2) is connected to a threaded rod (19), the outside of the threaded rod (19) is fitted with a reinforcing seat (3), and the outside of the threaded rod (19) is connected to a locking nut (20).
4. The subway track foundation reinforcement device according to claim 1, characterized in that: The extension plate (7) has a through hole (10) inside, and the threaded post (8) passes through the through hole (10).
5. The subway track foundation reinforcement device according to claim 2, characterized in that: The pad (1) has a slot (13) inside and a circular hole (15) on the outside. The insert plate (12) is embedded in the slot (13) and the fastening screw (16) passes through the circular hole (15).
6. The subway track foundation reinforcement device according to claim 2, characterized in that: The mounting bracket (11) has a through hole (21) on its side, and a threaded post (8) passes through the inside of the through hole (21).