Novel rail end insulator for railway

By designing a drainage structure with a bottom support plate and through holes in the I-beam gasket in the railway rail end insulation, the problem of reduced insulation performance caused by rainwater intrusion in rainy weather is solved, the safety and reliability of the rail end insulation are improved, the service life is extended and the maintenance cost is reduced.

CN223797207UActive Publication Date: 2026-01-13TIANJIN JUNDU GUOYE RAILWAY ENGINEERING EQUIPMENT CO LTD
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Patent Information

Application Number
CN202520306461.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-25
Publication Date
2026-01-13
Estimated Expiration
2035-02-25

AI Technical Summary

Technical Problem

Existing railway track end insulation is prone to reduced insulation performance due to rainwater intrusion during rainy weather, increasing the risk of leakage, and lacks effective drainage structures.

Method used

A rail end insulation structure including a base plate, a plug plate, and an I-beam gasket was designed. The base plate has a water channel inside, and the I-beam gasket has through holes and drainage holes to realize the automatic drainage of rainwater and enhance the insulation effect.

Benefits of technology

It improves the safety and reliability of rail end insulation in rainy weather, reduces material expansion and contraction caused by humidity changes, extends service life, simplifies maintenance, and reduces replacement costs.

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Abstract

The utility model relates to the technical field of rail end insulation for railways, and discloses novel rail end insulation for railways, which comprises a bottom supporting plate, first insulation pads are fixedly connected to the front side and the rear side of the bottom supporting plate, a first water flowing groove is formed in the bottom supporting plate, an insulation mechanism is arranged at the top of the bottom supporting plate, and the insulation mechanism comprises a plug board. The plug board is inserted into the bottom supporting board, the top of the plug board is fixedly connected with an I-shaped gasket, during use, through the arranged insulation mechanism, the rail end insulation effect can be achieved under the interaction of the bottom supporting board, the plug board and the I-shaped gasket, and therefore the bottom supporting board, the plug board and the I-shaped gasket are used for automatically blocking a rail circuit segment of a section; the I-shaped gasket has the advantages that the I-shaped gasket is arranged on the rail end, so that steel rail joints are cut off, electrical control over different rail sections is achieved, and in the using process of the I-shaped gasket, when the I-shaped gasket works on rainy days, the insulating performance of rail end insulation is possibly reduced due to rainwater invasion, and the risk of electric leakage is increased.
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Description

Technical Field

[0001] This utility model relates to the field of railway rail end insulation technology, specifically a new type of railway rail end insulation. Background Technology

[0002] Rail end insulation is a critical component ensuring the normal operation of track circuits. It prevents current leakage and guarantees accurate signal transmission. With the development of railway technology, new rail end insulation materials and designs are constantly emerging to improve insulation performance, durability, and adaptability. It ensures the normal operation of track circuits, avoids unnecessary current flow, and thus guarantees the accuracy and reliability of the railway signaling system. Existing railway rail end insulation is an integrated design without drainage channels. When used in rainy weather, the rail end insulation may suffer from reduced insulation performance due to rainwater intrusion, increasing the risk of leakage.

[0003] According to the description in a new type of rail end insulation published on the patent website (authorization announcement number: CN217157846U), the new type of rail end insulation includes "fixed middle waist, upper head plate, bottom support plate" etc. to achieve insulation work.

[0004] Regarding the above description, the applicant believes the following issues exist:

[0005] This new type of rail end insulation utilizes a fixed middle section, top plate, and bottom support plate to achieve insulation. However, since it lacks drainage channels and holes, the insulation performance may be reduced due to rainwater intrusion, increasing the risk of leakage. Therefore, improvements to this rail end insulation are necessary. Utility Model Content

[0006] The purpose of this invention is to provide a new type of rail end insulation for railways to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a novel rail end insulation for railways, comprising a base plate, wherein a first insulating pad is fixedly connected to the front and rear sides of the base plate, a first water trough is provided inside the base plate, and an insulating mechanism is provided on the top of the base plate;

[0008] The insulation mechanism includes an insert plate, which is inserted into the bottom support plate. An I-beam gasket is fixedly connected to the top of the insert plate. Second insulating pads are fixedly connected to the front and rear sides of the I-beam gasket. A through hole is opened inside the I-beam gasket. A second water channel is opened inside the I-beam gasket. A drainage hole is opened inside the I-beam gasket.

[0009] Preferably, the base plate has a slot inside, and the insert plate is inserted into the slot, so that the insert plate and the I-beam gasket can be kept in a stable state under the action of the slot.

[0010] Preferably, the through holes are provided in two sets, and both sets of through holes are circular, which facilitates the drainage of rainwater.

[0011] Preferably, the drain hole is circular and is connected to the through hole, which facilitates the drainage of water from the through hole by the drain hole.

[0012] Preferably, both the first and second water channels are rectangular in shape, and the first and second water channels are interconnected to facilitate the prevention of rainwater intrusion under the action of the first and second water channels.

[0013] Preferably, the base plate, insert plate, and I-beam gasket are all made of insulating material, which facilitates improved insulation performance.

[0014] Compared with the prior art, this utility model provides a novel rail end insulation for railways, which has the following beneficial effects:

[0015] 1. This railway uses a new type of rail end insulation. Through the designed insulation mechanism, rail end insulation can be achieved through the interaction of the base plate, insert plate, and H-beam gasket. The base plate, insert plate, and H-beam gasket are used at the track circuit segmentation points in automatic block sections to isolate rail joints, thereby enabling electrical control of different track sections. Furthermore, during rainy weather, the rail end insulation may suffer reduced insulation performance due to rainwater intrusion, increasing the risk of leakage. By creating a second drainage channel, through-holes, and drainage holes on the H-beam gasket, rainwater can be more easily drained, reducing the impact of moisture on insulation performance. This design improves the safety and reliability of the railway. Furthermore, the interconnected through-holes and drainage holes ensure smooth drainage of accumulated water, further enhancing the drainage effect. Simultaneously, the combined effect of the second and first drainage channels, through-holes, and drainage holes reduces the expansion and contraction of insulation materials caused by humidity changes, extending the service life of the I-beam gaskets. In terms of maintenance, it serves as a drainage channel, facilitating the removal of accumulated moisture during inspection and maintenance, simplifying maintenance work. Moreover, the I-beam gaskets are connected to the base plate via insert plates; when replacement is needed, only the I-beam gaskets need to be replaced, saving costs. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the left-side structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the insulation mechanism.

[0020] Figure 4 This is a cross-sectional view of an I-beam gasket.

[0021] In the diagram: 1. Base plate; 2. First insulating pad; 3. First water channel; 4. Insulation mechanism; 41. Insert plate; 42. I-beam gasket; 43. Second insulating pad; 44. Through hole; 45. Second water channel; 46. Drain hole. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," 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 or an electrical 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 utility model according to the specific circumstances.

[0024] This utility model provides the following technical solution:

[0025] Example 1

[0026] Please see Figure 1-4This utility model provides a technical solution: a new type of rail end insulation for railways, including a bottom support plate 1, a first insulating pad 2 fixedly connected to the front and rear sides of the bottom support plate 1, a first water trough 3 opened inside the bottom support plate 1, and an insulating mechanism 4 provided on the top of the bottom support plate 1;

[0027] The insulation mechanism 4 includes an insert plate 41, which is inserted into the bottom support plate 1. An I-shaped gasket 42 is fixedly connected to the top of the insert plate 41. Second insulating pads 43 are fixedly connected to the front and rear sides of the I-shaped gasket 42. A through hole 44 is opened inside the I-shaped gasket 42. A second water channel 45 is opened inside the I-shaped gasket 42. A drain hole 46 is opened inside the I-shaped pad.

[0028] The base plate 1 has a slot inside, into which the insert plate 41 is inserted to ensure stability of the insert plate 41 and the I-beam gasket 42. Two sets of through holes 44 are provided, both of which are circular, to facilitate the drainage of rainwater. The drain hole 46 is circular and connected to the through hole 44, allowing water to drain from the through hole 44. The first water trough 3 and the second water trough 45 are both rectangular and connected to each other, preventing rainwater intrusion. The base plate 1, the insert plate 41, and the I-beam gasket 42 are all made of insulating material, which improves the insulation effect.

[0029] In actual operation, when this device is used and the I-beam shim 42 needs to be installed, first place the base plate 1 between the two rails, and then insert the insert plate 41 into the base plate 1 to install the I-beam shim 42, making the I-beam shim 42 stable. Simultaneously, fix it to the left and right sides of the rails using insulating fishplates to ensure a stable relationship between the I-beam shim 42 and the two contacting rails. When working in rainy weather, the rail end insulation may suffer reduced insulation performance due to rainwater intrusion, increasing the risk of leakage. By opening a second drainage groove 45, a through hole 44, and a drainage hole 46 on the I-beam shim 42, rainwater can be drained more easily, reducing the impact of moisture on insulation performance. The through hole 44 and the drainage hole 46 are interconnected, which ensures that the water accumulated in the through hole 44 can be drained smoothly, further improving the drainage effect. At the same time, under the action of the second water channel 45, the first water channel, the through hole 44 and the drainage hole 46, the expansion and contraction of the insulation material caused by humidity changes can be reduced, extending the service life of the I-beam gasket 42. In terms of maintenance, it can serve as a drainage channel, making it convenient for workers to remove accumulated water when inspecting and maintaining the insulation, simplifying maintenance work. Furthermore, the I-beam gasket 42 is connected to the base plate 1 through the insert plate 41. When replacement is needed, only the I-beam gasket 42 needs to be replaced, saving costs.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A new type of rail end insulator for railways comprising a base plate (1), characterized in that: The bottom support plate (1) is fixedly connected with first insulation pads (2) on both sides, a first water channel (3) is arranged in the bottom support plate (1), and an insulation mechanism (4) is arranged on the top of the bottom support plate (1); The insulation mechanism (4) comprises an insertion plate (41), the insertion plate (41) is inserted into the bottom support plate (1), the top of the insertion plate (41) is fixedly connected with an I-shaped pad (42), the I-shaped pad (42) is fixedly connected with second insulation pads (43) on both sides, a through hole (44) is arranged in the I-shaped pad (42), a second water channel (45) is arranged in the I-shaped pad (42), and a drainage hole (46) is arranged in the I-shaped pad.

2. A new type of rail end insulator for railway as claimed in claim 1, wherein: The bottom support plate (1) is internally provided with a slot, and the insertion plate (41) is inserted into the slot.

3. A new type of rail end insulator for railway as claimed in claim 1, wherein: The through hole (44) is provided with two groups, and the two groups of through holes (44) are circular.

4. A new type of rail end insulator for railway as claimed in claim 1, wherein: The drainage hole (46) is circular, and the drainage hole (46) and the through hole (44) are in communication.

5. A new type of rail end insulator for railway as claimed in claim 1, wherein: The first water channel (3) and the second water channel (45) are both rectangular, and the first water channel (3) and the second water channel (45) are in communication.

6. A new type of rail end insulator for railway as claimed in claim 1, wherein: The bottom support plate (1), the insertion plate (41) and the I-shaped pad (42) are all made of insulating materials.

Citation Information

Patent Citations

  • Novel rail end insulator

    CN217157846U