Double-end I-shaped steel type anti-falling guardrail

Abstract

The utility model relates to the technical field of rail transit, in particular to a double-end I-shaped steel type anti-falling guardrail which comprises a guardrail support, a walking rail and an I-shaped steel guardrail body. The I-shaped steel guard rail is clamped at the top of the insulating sleeve boot type elastic cushion block and fastened on the guard rail support through a detachable fastening mechanism, the walking rail is locked on the guard rail support through a locking mechanism, and the portion, making contact with the guard rail support, of the bottom of the walking rail is sleeved with an insulating spacer. The service life is doubled, meanwhile, the structural stability is higher than that of a single working face, meanwhile, the insulating property is high, the requirement for track circuit laying is lowered, the safety of a track circuit is further guaranteed, and therefore cross-signal-area laying can be conveniently conducted.

Description

Technical Field

[0001] This utility model relates to the field of rail transit technology, specifically a double-headed I-beam anti-derailment guard rail. Background Technology

[0002] Guard rails are steel rails laid inside the main rails on railway tracks that do not bear the vertical load of the wheels. Their function varies depending on the location. At turnout frogs, guard rails are laid inside the rail opposite the hazardous space at the frog, guiding the wheels through the hazardous space and preventing them from impacting the frog's tip. On bridges, guard rails prevent derailed vehicles from colliding with the bridge or falling off. On small-radius curves, guard rails are laid inside the inner rail to reduce wear on the outer rail's side. Anti-derailment guard rails are auxiliary rails installed inside the railway line. Anti-derailment guard rails ensure train safety and prevent derailment; they are essential safety devices for preventing train derailment. A search revealed that patent CN115491934A discloses a shock-absorbing and noise-reducing guardrail device for vehicles passing through small-radius curves. This device uses I-beam guardrails to limit the movement of the running rail from both sides, preventing lateral displacement of the rail due to the wheel-rail interaction when the vehicle passes through small-radius curves. This is more effective than simply using the inner or outer side. However, its insulation is poor, making it prone to conductivity when a train passes, thus requiring higher standards for track circuit installation. Therefore, a double-headed I-beam anti-derailment guardrail was designed, which doubles the service life while offering higher structural stability than a single-headed guardrail. It also boasts higher insulation, reducing the requirements for track circuit installation and further ensuring track circuit safety, thus facilitating installation across signal zones. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] To address the shortcomings of existing technologies, this utility model provides a double-headed I-beam anti-derailment guardrail with two working surfaces. This doubles the service life while providing higher structural stability than a single-working-surface guardrail. It also offers higher insulation, reducing the requirements for track circuit installation and further ensuring the safety of the track circuit, thus facilitating installation across signal zones.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, this utility model provides the following technical solution: a double-headed I-beam anti-derailment guard rail, comprising a guard rail bracket, a running rail, and an I-beam guard rail. Symmetrical insulating boot-type elastic pads are placed on the top of one side of the guard rail bracket. The I-beam guard rail is clipped onto the top of the insulating boot-type elastic pads and fastened to the guard rail bracket by a detachable fastening mechanism. The running rail is locked to the guard rail bracket by a locking mechanism, and an insulating pad is fitted on the bottom of the running rail where it contacts the guard rail bracket.

[0007] Preferably, the detachable fastening mechanism includes a matching hexagonal bolt and a hexagonal nut. The insulating boot-type elastic pad and the I-beam guard rail are both provided with through holes that are compatible with the hexagonal bolt. The hexagonal bolt passes through the through holes on the insulating boot-type elastic pad and the I-beam guard rail from the top and is then locked to the guard rail bracket by the hexagonal nut.

[0008] Preferably, the locking mechanism includes a wedge-shaped buckle plate that fits into the guard rail bracket. Both the guard rail bracket and the wedge-shaped buckle plate are provided with slots that limit the bottom sides of the track. The wedge-shaped buckle plate and the guard rail bracket are locked together by T-bolts and hexagonal nuts.

[0009] Preferably, both the hexagonal bolts and T-bolts are equipped with flat washers, circular spring washers, and heavy-duty spring washers.

[0010] Preferably, the inner wall of the insulating boot-type elastic pad has multiple transverse grooves.

[0011] (III) Beneficial Effects

[0012] Compared with the prior art, this utility model provides a double-headed I-beam anti-derailment guardrail, which has the following beneficial effects:

[0013] This double-headed I-beam anti-derailment guardrail, by incorporating I-beam guardrails, allows for easy rotation of the I-beam by 180° to replace the working surface when one side of the I-beam's working surface experiences significant wear. The inclusion of insulating boot-type elastic pads not only facilitates locking the I-beam guardrail to the guardrail bracket but also provides insulation between the two. Insulating gaskets further insulate the running rail and guardrail bracket, reducing conductivity when trains pass, thus lowering the requirements for track circuit installation and further ensuring track circuit safety. This double-headed I-beam anti-derailment guardrail features two working surfaces, doubling its service life while offering higher structural stability than single-working-surface guardrails. Its superior insulation further reduces the requirements for track circuit installation and ensures track circuit safety, facilitating installation across signal zones. It is particularly suitable for urban rail transit, ensuring train safety and preventing derailment. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] The following are marked in the attached diagram: 1. Guard rail bracket; 2. Wedge-shaped buckle plate; 3. Hexagonal nut; 4. Flat washer; 5. Circular spring washer; 6. Heavy-duty spring washer; 7. Hexagonal bolt; 8. T-bolt; 9. Insulating gasket; 10. Running rail; 11. Insulating boot-type elastic pad; 12. I-beam guard rail. Detailed Implementation

[0016] 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.

[0017] Example:

[0018] Please see Figure 1 A double-headed I-beam anti-derailment guard rail includes a guard rail bracket 1, a running rail 10, and an I-beam guard rail 12. The guard rail bracket 1 has symmetrical insulating boot-type elastic pads 11 on one side of its top. The I-beam guard rail 12 is snapped onto the top of the insulating boot-type elastic pads 11 and fastened to the guard rail bracket 1 by a detachable fastening mechanism. The running rail 10 is locked to the guard rail bracket 1 by a locking mechanism, and an insulating pad 9 is fitted on the bottom of the running rail 10 where it contacts the guard rail bracket 1.

[0019] Specifically, the I-beam guard rail 12 is directly installed on the track rail via guard rail bracket 1, and the guard rail bracket 1 is connected to the bottom of the track rail; it is suitable for installation on various types of rail foundations with a clearance of ≥60mm at the bottom of the track rail (special designs are possible for special cases); the flange groove width between the I-beam guard rail 12 and the running rail 10 is scientifically set and its value is adjustable; the size of the anti-derailment guard rail should be designed to allow sufficient space for fastener maintenance, and the working surface width of the I-beam guard rail 12 is ≤70mm; the lateral load of the anti-derailment guard rail is ≥80KN (measured based on a lateral load of 80KN at the support point when supported by a single guard rail bracket); buffer sections should be set at the beginning and end of the installation section of the I-beam guard rail 12; the anti-derailment guard rail and the rail should be installed with insulation, and the volume resistivity of the insulation components should not be less than 108Ω·cm to avoid affecting stray current;

[0020] Specifically, the detachable fastening mechanism includes a matching hexagonal bolt 7 and a hexagonal nut 3. The insulating boot-type elastic pad 11 and the I-beam guard rail 12 are both provided with through holes that are compatible with the hexagonal bolt 7. The hexagonal bolt 7 passes through the through holes on the insulating boot-type elastic pad 11 and the I-beam guard rail 12 from the top and is then locked onto the guard rail bracket 1 by the hexagonal nut 3. Furthermore, the through holes can be set as bolt holes that are compatible with the hexagonal bolt 7. When changing the working surface, the existing bolt holes can be used to easily lock the insulating boot-type elastic pad 11 and the I-beam guard rail 12 onto the guard rail bracket 1 through the cooperation of the hexagonal bolt 7 and the hexagonal nut 3.

[0021] Specifically, the locking mechanism includes a wedge-shaped buckle plate 2 that fits into the rail guard bracket 1. Both the rail guard bracket 1 and the wedge-shaped buckle plate 2 have slots that limit the bottom sides of the traveling rail 10. The wedge-shaped buckle plate 2 and the rail guard bracket 1 are locked together by T-bolts 8 and hexagonal nuts 3. The wedge-shaped buckle plate 2 facilitates the limiting of the traveling rail 10 onto the rail guard bracket 1, and the T-bolts 8 and hexagonal nuts 3 facilitate the locking of the two together.

[0022] Specifically, both the hexagonal bolts 7 and T-bolts 8 are equipped with flat washers 4, circular spring washers 5 and heavy-duty spring washers 6. These features increase the strength of locking and fastening, and improve the convenience and feel of locking.

[0023] Specifically, the inner wall of the insulating boot-type elastic pad 11 is provided with multiple transverse grooves.

[0024] It should be noted that the terms "one embodiment," "embodiment," "exemplary embodiment," "some embodiments," etc., mentioned in the specification indicate that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.

[0025] It should be readily understood that the terms “on,” “above,” and “on top of” in this disclosure should be interpreted in the broadest possible sense, such that “on” means not only “directly on something” but also “on something” with an intermediate feature or layer therebetween, and that “above” or “on top of” means not only “on top of something” but also “on top of something” without an intermediate feature or layer therebetween (i.e., directly on something).

[0026] Furthermore, for ease of explanation, spatially relative terms such as "below," "below," "under," "above," and "above" may be used to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation other than those shown in the figures. The device may have other orientations (rotated 90 degrees or in other orientations), and the spatially relative descriptive terms used herein may be interpreted accordingly.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used merely 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.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application 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 or all of the technical features therein. 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 application.

Claims

1. A double-headed I-beam anti-derailment guardrail, characterized in that: The system includes a rail support bracket (1), a running rail (10), and an I-beam rail (12). A pair of symmetrical insulating boot-type elastic pads (11) are placed on the top of one side of the rail support bracket (1). The I-beam rail (12) is clipped onto the top of the insulating boot-type elastic pads (11) and fastened to the rail support bracket (1) by a detachable fastening mechanism. The running rail (10) is locked to the rail support bracket (1) by a locking mechanism, and an insulating pad (9) is fitted on the bottom of the running rail (10) where it contacts the rail support bracket (1).

2. The double-headed I-beam anti-derailment guardrail according to claim 1, characterized in that: The detachable fastening mechanism includes a matching hexagonal bolt (7) and a hexagonal nut (3). The insulating boot-type elastic pad (11) and the I-beam guard rail (12) are both provided with through holes that are compatible with the hexagonal bolt (7). The hexagonal bolt (7) passes through the through holes on the insulating boot-type elastic pad (11) and the I-beam guard rail (12) from the top and is then locked to the guard rail bracket (1) by the hexagonal nut (3).

3. The double-headed I-beam anti-derailment guardrail according to claim 2, characterized in that: The locking mechanism includes a wedge-shaped buckle plate (2) that fits into the guard rail bracket (1). Both the guard rail bracket (1) and the wedge-shaped buckle plate (2) are provided with slots that limit the bottom sides of the guide rail (10). The wedge-shaped buckle plate (2) and the guard rail bracket (1) are locked together by T-bolts (8) and hexagonal nuts (3).

4. The double-headed I-beam anti-derailment guardrail according to claim 3, characterized in that: The hexagonal bolts (7) and T-bolts (8) are each equipped with a flat washer (4), a circular spring washer (5), and a heavy-duty spring washer (6).

5. The double-headed I-beam anti-derailment guardrail according to claim 4, characterized in that: The inner wall of the insulating boot-type elastic pad (11) is provided with multiple transverse grooves.

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