Rail transit signal transponder mounting structure

Abstract

The utility model discloses a rail transit signal transponder installation structure which comprises a prefabricated rail plate, a steel rail, a rail bearing table and a transponder, the two sides of the prefabricated rail plate are respectively provided with an embedded sliding groove in the length direction, each embedded sliding groove is connected with two connecting rods through bolts, and the connecting rods are connected with the prefabricated rail plate through bolts. The length direction of the connecting rods is parallel to the width direction of the prefabricated track plate, the two connecting rods on the same side are jointly connected with a mounting frame, bolt sliding grooves are formed in the mounting frames in the length direction of the track prefabricated plate, and the bolt sliding grooves of the two mounting frames are jointly connected with a transponder mounting plate through bolts. A transponder is fixedly installed on the transponder installation plate, the prefabricated track plate is prefabricated in a factory-like mode through components, embedding of the plate side pre-embedded sliding groove is completed before leaving a factory, positioning is accurate, quality is high, the transponder installation support is used in a matched mode, and punching-free installation of the transponder on the track structure can be achieved. The support is light and easy to install, and the track structure is protected against hole forming damage while convenient construction is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of rail transit track bed structure technology, and in particular to a rail transit signal transponder installation structure. Background Technology

[0002] Transponders are core equipment in rail transit signaling systems, responsible for transmitting critical data such as track parameters and speed limits to the train's onboard subsystems. Their installation stability directly impacts operational safety. Currently, transponders are generally fixed to the track bed or sleepers using brackets, with the brackets connected to the foundation structure by bolts. However, in sections with prestressed long sleepers, drilling into the bolts can damage the integrity of the prestressing tendons inside the sleepers, leading to uneven stress distribution and increasing the risk of cracks or even breakage. Statistics show that such damage can shorten the service life of long sleepers by more than 30%, and repairs require operational interruptions, resulting in high economic and social costs.

[0003] Besides structural damage, traditional bolted connections also suffer from severe stray current corrosion. When bolts come into contact with the reinforcing steel in the sleepers and track bed, a low-resistance path is formed, accelerating the electrochemical corrosion of the metal structure. Actual measurement data shows that the stray current corrosion rate can increase by 2-3 times in humid environments, significantly threatening the durability of the track structure. Furthermore, the precast track slabs widely used in subway projects are manufactured in factories and assembled on-site. Their design requires the integrity of the slab structure, strictly prohibiting any drilling operations. Existing transponder installation technology relies on on-site drilling, which seriously conflicts with the industrialized construction concept of precast slabs, leading to a technical bottleneck in transponder installation in precast slab sections.

[0004] Meanwhile, traditional bracket installation methods rely on on-site drilling for fixing when adjusting the transponder position, resulting in a cumbersome adjustment process with limited accuracy, making it difficult to meet the requirements of prefabricated track slabs for rapid installation and high-precision positioning. Existing adjustment technologies often require repeated disassembly of bolts and re-drilling, which is not only time-consuming and labor-intensive but also increases the risk of structural damage; while some simple snap-fit ​​designs can eliminate the need for drilling, their insufficient seismic resistance can easily cause transponder displacement, affecting the stability of signal transmission. Utility Model Content

[0005] Purpose of the invention: The purpose of this utility model is to provide an installation structure for a rail transit signal transponder, which solves the problems in the prior art where on-site drilling is required for transponder installation, leading to damage to the track structure, increased stray current corrosion, insufficient adjustment accuracy, and poor adaptability.

[0006] Technical solution:

[0007] A transponder mounting structure for rail transit includes a precast track slab, rails, a rail support platform, and a transponder. Each side of the precast track slab has a pre-embedded groove along its length. Each pre-embedded groove is bolted to two connecting rods, the length of which is parallel to the width of the precast track slab. The two connecting rods on the same side are connected to a mounting frame. The mounting frame has bolt grooves along the length of the precast track slab. The bolt grooves of the two mounting frames are bolted to a transponder mounting plate, on which the transponder is fixedly mounted.

[0008] Furthermore, the two mounting brackets are fixedly connected by a transverse connecting plate to form a mounting frame, which enhances the rigidity and vibration resistance of the mounting brackets.

[0009] Furthermore, the connecting rod is used to fix the connecting end of the mounting bracket to the mounting bracket through bolt washers and insulating bolts.

[0010] Furthermore, a nylon insulating gasket is also fixedly installed between the bolt washer and the mounting bracket.

[0011] The combination design of insulating bolts and bolt washers blocks stray current conduction paths between the connecting rod and the mounting bracket, prevents electrochemical corrosion, and extends the service life of the track structure.

[0012] Furthermore, the connecting rod is provided with a bent portion adapted to the pre-embedded groove at one end of the groove.

[0013] Furthermore, the connecting rod is connected to the pre-embedded groove by a T-bolt.

[0014] Furthermore, the connecting rod is located between adjacent rail bearing platforms and at the lower end of the rail.

[0015] Furthermore, the cross-section of the pre-embedded groove is T-shaped, and its opening width is adapted to the thickness of the bent part of the connecting rod to form a limiting fit.

[0016] Beneficial effects:

[0017] 1. The precast track slabs are manufactured using factory-prefabrication of components. Pre-embedded grooves on the sides of the slabs are installed before shipment, ensuring accurate positioning and high quality. They are used with a matching transponder mounting bracket, enabling drill-free installation of the transponder onto the track structure. The bracket is lightweight and easy to install, protecting the track structure from damage caused by drilling while ensuring convenient construction.

[0018] 2. The pre-embedded groove enables coarse positioning of the transponder along the line mileage, the bolt groove on the top of the mounting bracket supports fine longitudinal adjustment, and the transverse L-shaped connecting rod directly completes the positioning in the width direction, significantly improving installation efficiency and positioning accuracy. Attached Figure Description

[0019] Figure 1This is a perspective view of the present invention;

[0020] Figure 2 This is an enlarged view of the mounting bracket position of this utility model;

[0021] Figure 3 This is a plan view of the present invention;

[0022] Figure 4 This is a side view of the present invention. Detailed Implementation

[0023] To make the technical solution of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0024] Example 1

[0025] like Figure 1-4 As shown, a rail transit signal transponder installation structure includes a prefabricated track slab 1, a rail 2, a rail support platform 3, and a transponder 4. Each side of the prefabricated track slab 1 has a pre-embedded groove 5 along its length. Each pre-embedded groove 5 is bolted to two connecting rods 6. The length direction of the connecting rods 6 is parallel to the width direction of the prefabricated track slab 1. The two connecting rods 6 on the same side are connected to a mounting frame 7. The mounting frame 7 has bolt grooves 8 along the length direction of the prefabricated track slab 1. The bolt grooves 8 of the two mounting frames 7 are bolted to a transponder mounting plate 9, on which the transponder 4 is fixedly installed.

[0026] The pre-embedded grooves 5 are embedded on both sides of the track slab 1 during factory prefabrication and are connected to the connecting rods 6 by T-bolts, achieving drilling-free installation and avoiding damage to the prefabricated slab structure. The bolt grooves 8 on the top of the mounting bracket 7 cooperate with the transponder mounting plate 9 to support stepless adjustment of the transponder 4 along the length of the track, meeting the requirements for precise positioning.

[0027] In this embodiment, the two mounting brackets 7 are fixedly connected by a transverse connecting plate 10 to form a mounting frame. The transverse connecting plate 10 connects the two mounting brackets 7 into an integral frame structure, enhancing the rigidity and vibration resistance of the mounting brackets 7, dispersing the vibration load generated during train operation, and preventing the transponder 4 from shifting or loosening due to vibration.

[0028] In this embodiment, the connecting rod 6 is connected to the mounting frame 7 via bolt washers 11 and insulating bolts 12 at its connecting end. The combined design of the insulating bolts 12 and bolt washers 11 blocks stray current conduction paths between the connecting rod 6 and the mounting frame 7, prevents electrochemical corrosion, and extends the service life of the track structure.

[0029] In this embodiment, a nylon insulating gasket is also fixedly disposed between the bolt washer 12 and the mounting bracket 7. The nylon insulating gasket further isolates the metal contact surface, enhances the insulation effect, and provides a buffering effect, reducing mechanical wear between the mounting bracket 7 and the connecting rod 6.

[0030] In this embodiment, the connecting rod 6 is provided with a bent portion at one end of the slide groove to adapt to the pre-embedded slide groove 5.

[0031] In this embodiment, the connecting rod 6 is connected to the pre-embedded groove 5 via a T-bolt. The locking design of the T-bolt and the pre-embedded groove 5 provides reliable connection strength, while facilitating on-site installation and disassembly, thus improving construction efficiency.

[0032] In this embodiment, the connecting rod 6 is located between adjacent rail support platforms 3 and at the lower end of the rail 2. The layout of the connecting rod 6 avoids the space between the rail 2 and the rail support platform 3, prevents interference with the track structure, ensures that the installation process does not require modification of existing track components, and guarantees driving safety.

[0033] In this embodiment, the pre-embedded groove 5 has a T-shaped cross-section, and its opening width is adapted to the thickness of the bent portion of the connecting rod 6, forming a limiting fit. The bent portion of the connecting rod 6 fits with the T-shaped cross-section of the pre-embedded groove 5 to form a mechanical limit, preventing the connecting rod 6 from shifting laterally during installation or use, and ensuring the overall stability of the bracket.

[0034] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. A rail transit signal transponder installation structure, characterized in that, The system includes a precast track slab (1), a rail (2), a rail support platform (3), and a transponder (4). Each side of the precast track slab (1) is provided with a pre-embedded groove (5) along its length. Each pre-embedded groove (5) is bolted to two connecting rods (6). The length direction of the connecting rods (6) is parallel to the width direction of the precast track slab (1). The two connecting rods (6) on the same side are connected to a mounting frame (7). The mounting frame (7) is provided with a bolt groove (8) along the length direction of the precast track slab (1). The bolt grooves (8) of the two mounting frames (7) are bolted to a transponder mounting plate (9). The transponder (4) is fixedly installed on the transponder mounting plate (9).

2. The installation structure for a rail transit signal transponder according to claim 1, characterized in that, The two mounting brackets (7) are fixedly connected by a transverse connecting plate (10) to form a mounting frame.

3. The installation structure for a rail transit signal transponder according to claim 1, characterized in that, The connecting rod (6) is used to fix the connecting end of the mounting bracket (7) and is connected to the mounting bracket (7) through bolt washers (11) and insulating bolts (12).

4. The installation structure for a rail transit signal transponder according to claim 3, characterized in that, A nylon insulating gasket is also fixed between the bolt washer (12) and the mounting bracket (7).

5. The installation structure for a rail transit signal transponder according to claim 1, characterized in that, The connecting rod (6) is provided with a bent part at one end of the slide groove to adapt to the pre-embedded slide groove (5).

6. A rail transit signal transponder installation structure according to claim 1 or 5, characterized in that, The connecting rod (6) is connected to the pre-embedded groove (5) by a T-bolt.

7. The installation structure for a rail transit signal transponder according to claim 1, characterized in that, The connecting rod (6) is located between adjacent rail support platforms (3) and at the lower end of the rail (2).

8. The installation structure for a rail transit signal transponder according to claim 1, characterized in that, The cross-section of the pre-embedded groove (5) is T-shaped, and its opening width is adapted to the thickness of the bent part of the connecting rod (6) to form a limiting fit.

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