A small-radius narrow-track turnout extension rail guard device

Abstract

This utility model discloses a small-radius narrow-track turnout extension guard rail device, belonging to the field of rail transit technology. The device includes a first curved guide rail, a second curved guide rail, a first straight guide rail, a second straight guide rail, and a barrier gate. The first and second curved guide rails form a curved track, and the first and second straight guide rails form a straight track, which is connected to the curved track. The auxiliary rails, such as the first curved auxiliary guide rail, have the same dimensions, shape, and thickness as the curved and straight tracks, but with extended lengths. This allows the rail vehicle to consistently guide its wheels during track switching, ensuring the vehicle's movement remains within a guided and restricted range, resulting in smoother travel on curved and straight tracks.

Description

Technical Field

[0001] This utility model belongs to the field of rail transit technology, specifically relating to a small-radius narrow-track turnout extension guard device. Background Technology

[0002] A turnout is a track connection device that allows locomotives and rolling stock to switch from one track to another, and it is also one of the weakest links in the track.

[0003] Many turnouts have small guard rails at the turnout face. When a railcar travels from the rear of the turnout to the front, slight wheel wobbling often causes the wheels to ride on the guard rails. Because the small guard rails are short and thin, their wheel guidance effect is poor, and the phenomenon of wheel flanges riding on the guard rails occurs frequently. This can cause the railcar to fall off the tracks in minor cases, or even cause it to overturn in severe cases, which is detrimental to the safety of transportation operations. Therefore, this application proposes an extended guard rail device for small-radius, narrow-gauge turnouts. Utility Model Content

[0004] The purpose of this utility model is to provide a small-radius narrow-track turnout extension guard rail device to solve the problem mentioned in the background art that the existing track guard rails are short in length and thin in thickness, resulting in poor wheel guidance effect and making it easy for the wheels to ride on the guard rails when changing tracks.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a small-radius narrow-track turnout extension guard rail device, comprising a first curved guide rail, a second curved guide rail, a first straight guide rail, a second straight guide rail, and a barrier gate; the first curved guide rail and the second curved guide rail form a curved track, and the first straight guide rail and the second straight guide rail form a straight track; the straight track is connected to the curved track.

[0006] At the intersection of the first curved guide rail and the first straight guide rail, a first curved auxiliary guide rail with the same curvature as the first curved guide rail and a first straight auxiliary guide rail aligned with the first straight guide rail are provided, with the first straight auxiliary guide rail abutting against the first curved auxiliary guide rail.

[0007] A second straight auxiliary guide rail is provided between the first straight guide rail and the second straight guide rail, and a third straight auxiliary guide rail is provided between the first straight guide rail and the second straight guide rail on the side closer to the second straight guide rail;

[0008] The barrier gate is located at the second curved guide rail and is used to guide rail vehicles when switching between straight and curved tracks.

[0009] Preferably, a support block for connection is provided at the connection between the first straight auxiliary guide rail and the first curved auxiliary guide rail.

[0010] Preferably, the support block is provided with a rib plate that abuts against the connection between the first straight auxiliary guide rail and the first curved auxiliary guide rail.

[0011] Preferably, a pin for fixing the position of the support block and the pad block is inserted into the support block and the pad block under the first straight auxiliary guide rail.

[0012] Preferably, the curved track includes a first pre-dating track, a first docking track, and a post-dating track, and the straight track includes a second pre-dating track and a second docking track, with the second docking track connected to the post-dating track.

[0013] Preferably, there is a second gap between the third straight auxiliary guide rail and the second straight guide rail for guiding the wheels of the rail vehicle.

[0014] Preferably, a first gap is provided between the second straight auxiliary guide rail and the first straight guide rail for guiding and limiting the wheels of the rail vehicle.

[0015] Preferably, the first docking track includes a second bending auxiliary guide rail and a third bending auxiliary guide rail. A connecting plate for distributing the force is provided at the second bending auxiliary guide rail and the third bending auxiliary guide rail. The bending arc of the connecting plate is the same as the bending arc of the first bending guide rail. The connecting plate includes a first connecting part that fits into the second bending auxiliary guide rail and a second connecting part that fits into the third bending auxiliary guide rail.

[0016] Preferably, the third bending auxiliary guide rail is provided with a working surface parallel to the second straight guide rail near the second straight guide rail, and a third gap is provided between the working surface and the second straight guide rail to allow the wheels of the rail vehicle to travel.

[0017] Preferably, the barrier gate has two working states: a straight-going state and a steering assist state. When the barrier gate is in the straight-going state, it is aligned with the first straight-going guide rail. When the barrier gate is in the steering assist state, it is parallel to the tangent of the second curved guide rail. A gap is provided between the barrier gate and the second curved guide rail to provide guidance for the steering of the rail vehicle wheels.

[0018] Beneficial effects:

[0019] This utility model provides a small-radius narrow-track turnout extension guard device. By setting components such as a first curved auxiliary guide rail, a first straight auxiliary guide rail, a second straight auxiliary guide rail, and a third straight auxiliary guide rail at curved and straight tracks, the device can support and limit the wheels of rail vehicles when passing through curved and straight tracks, preventing the rail vehicles from deviating from the track. The dimensions of the first curved auxiliary guide rail and other auxiliary rails are the same as the shape and thickness of the curved and straight tracks, but their length is extended. This allows the rail vehicles to always provide guidance for the wheels during track switching, keeping the rail vehicles within the guidance and restriction range when switching wheels, and making the rail vehicles travel more smoothly on curved and straight tracks. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the small-radius narrow-track turnout extension guard device of this utility model;

[0021] Figure 2 This is a right view of the small-radius narrow-track turnout extension guard device of this utility model;

[0022] Figure 3 This is a left view of the small-radius narrow-track turnout extension guard device of this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. First curved guide rail; 2. Second curved guide rail; 3. First straight guide rail; 4. Second straight guide rail; 5. First curved auxiliary guide rail; 6. First straight auxiliary guide rail; 7. Support block; 8. Pin; 9. Second straight auxiliary guide rail; 10. Third straight auxiliary guide rail; 11. Barrier gate; 12. Second curved auxiliary guide rail; 13. Third curved auxiliary guide rail; 14. Connecting plate. Detailed Implementation

[0025] The specific embodiments of this utility model are described in detail below, but it should be understood that the scope of protection of this utility model is not limited to the specific embodiments.

[0026] like Figures 1-3 As shown in the figure, this utility model provides a small-radius narrow-track turnout extension guard rail device, including a first curved guide rail 1, a second curved guide rail 2, a first straight guide rail 3, a second straight guide rail 4, and a barrier gate 11. The first curved guide rail 1 and the second curved guide rail 2 form a curved track, and the first straight guide rail 3 and the second straight guide rail 4 form a straight track. The straight track is connected to the curved track. In order to better connect the straight track and the curved track and avoid the vehicle turning at an excessive angle, the turning radius of the curved track connected to the straight track needs to be as small as possible.

[0027] For reference Figure 1The curved track includes a first pre-dock track, a first docking track, and a post-dock track, while the straight track includes a second pre-dock track and a second docking track, with the second docking track connected to the post-dock track.

[0028] Rail vehicles traveling on straight or curved tracks move along their respective tracks and eventually move to the docking track, or move from the docking track to the straight or curved track. To make the track switching of rail vehicles smoother, a first curved auxiliary guide rail 5 with the same curvature as the first curved guide rail 1 and a first straight auxiliary guide rail 6 aligned with the first straight guide rail 3 are provided at the intersection of the first curved guide rail 1 and the first straight guide rail 3. The first straight auxiliary guide rail 6 rests against the first curved auxiliary guide rail 5. A support block 7 for connection is provided at the connection between the first straight auxiliary guide rail 6 and the first curved auxiliary guide rail 5. The support block 7 is provided with a rib plate that rests against the connection between the first straight auxiliary guide rail 6 and the first curved auxiliary guide rail 5. A pin 8 for fixing the position of the support block 7 and the pad is inserted into the pad under the support block 7 and the first straight auxiliary guide rail 6.

[0029] Specifically, a second straight auxiliary guide rail 9 is provided between the first straight guide rail 3 and the second straight guide rail 4. A gap is provided between the second straight auxiliary guide rail 9 and the first straight guide rail 3 to provide guidance and limit for the wheels of the rail vehicle. A third straight auxiliary guide rail 10 is provided between the first straight guide rail 3 and the second straight guide rail 4 on the side closer to the second straight guide rail 4. A gap exists between the third straight auxiliary guide rail 10 and the second straight guide rail 4 to guide the wheels of the rail vehicle.

[0030] It should be noted that the first docking track includes a second bending auxiliary guide rail 12 and a third bending auxiliary guide rail 13. There is a gap between the end of the second straight auxiliary guide rail 9 and the outer wall of the second bending auxiliary guide rail 12. A connecting plate 14 for distributing the force is provided at the second bending auxiliary guide rail 12 and the third bending auxiliary guide rail 13. The bending arc of the connecting plate 14 is the same as the bending arc of the first bending guide rail 1. The connecting plate 14 includes a first connecting part that fits with the second bending auxiliary guide rail 12 and a second connecting part that fits with the third bending auxiliary guide rail 13.

[0031] More specifically, the third curved auxiliary guide rail 13 is provided with a working surface parallel to the second straight guide rail 4 near the second straight guide rail 4, and a gap is provided between the working surface and the second straight guide rail 4 to allow the wheels of the rail vehicle to travel. The above-mentioned gap is the same as the gap between the second straight auxiliary guide rail 9 and the first straight guide rail 3, and the gap between the third straight auxiliary guide rail 10 and the second straight guide rail 4.

[0032] In order to switch between straight and curved tracks, a barrier gate 11 is provided at the second curved guide rail 2. The barrier gate 11 is equipped with a power function and has two working states: straight state and steering assist state. When the barrier gate 11 is in the straight state, the barrier gate 11 is aligned with the first straight guide rail 3. When the barrier gate 11 is in the steering assist state, the barrier gate 11 is parallel to the tangent of the second curved guide rail 2. A gap is provided between the barrier gate 11 and the second curved guide rail 2 to provide guidance for the steering of the rail vehicle wheels.

[0033] In summary, this utility model embodiment provides a small-radius narrow-track turnout extension guard device. By setting components such as a first curved auxiliary guide rail 5, a first straight auxiliary guide rail 6, a second straight auxiliary guide rail 9, and a third straight auxiliary guide rail 10 at curved and straight tracks, the wheels of the rail vehicle can be supported and limited when passing through curved and straight tracks, preventing the rail vehicle from deviating from the track. Furthermore, the first curved auxiliary guide rail 5 and other components can provide guidance to the wheels of the rail vehicle during track switching, ensuring that the rail vehicle's movement is within the guidance and restriction range when switching wheels, making the rail vehicle travel more smoothly on curved and straight tracks.

[0034] The above-disclosed embodiments are only a few specific examples of the present utility model. However, the embodiments of the present utility model are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the protection scope of the present utility model.

Claims

1. A small-radius narrow-gauge switch extension guard rail device, comprising a first curved guide rail (1), a second curved guide rail (2), a first straight guide rail (3), a second straight guide rail (4), a gate (11), characterized in that, The first curved guide rail (1) and the second curved guide rail (2) form a curved track, and the first straight guide rail (3) and the second straight guide rail (4) form a straight track. The straight track is connected to the curved track. At the intersection of the first curved guide rail (1) and the first straight guide rail (3), there is a first curved auxiliary guide rail (5) with the same curvature as the first curved guide rail (1) and a first straight auxiliary guide rail (6) aligned with the first straight guide rail (3). The first straight auxiliary guide rail (6) rests on the first curved auxiliary guide rail (5). A second straight auxiliary guide rail (9) is provided between the first straight guide rail (3) and the second straight guide rail (4), and a third straight auxiliary guide rail (10) is provided on the side of the first straight guide rail (3) and the second straight guide rail (4) closer to the second straight guide rail (4). The barrier gate (11) is located at the second curved guide rail (2) and is used to provide guidance for rail vehicles to switch between straight and curved tracks.

2. A small radius, narrow gauge switch extension guard rail device as defined in claim 1, wherein, A support block (7) for connection is provided at the connection point between the first straight auxiliary guide rail (6) and the first curved auxiliary guide rail (5).

3. A small radius, narrow gauge switch extension guard rail device as defined in claim 2, wherein, The support block (7) is provided with a rib plate that abuts against the connection between the first straight auxiliary guide rail (6) and the first curved auxiliary guide rail (5).

4. A small radius, narrow gauge switch extension guard rail device as defined in Claim 3, wherein, The support block (7) and the pad on the lower side of the first straight auxiliary guide rail (6) are fitted with pins (8) for fixing the position of the support block (7) and the pad.

5. A small radius, narrow gauge switch extension guard rail device as defined in claim 1 wherein, The curved track includes a first pre-dock track, a first docking track, and a post-dock track, while the straight track includes a second pre-dock track and a second docking track, with the second docking track connected to the post-dock track.

6. A small radius, narrow gauge switch extension guard rail device as defined in Claim 1, wherein, There is a second gap between the third straight auxiliary guide rail (10) and the second straight guide rail (4) to guide the wheels of the rail vehicle.

7. A small radius, narrow gauge switch extension guard rail device as defined in claim 6, wherein, A first gap is provided between the second straight auxiliary guide rail (9) and the first straight guide rail (3) for guiding and limiting the wheels of the rail vehicle.

8. A small radius, narrow gauge switch extension guard rail device as defined in Claim 5, wherein, The first docking track includes a second bending auxiliary guide rail (12) and a third bending auxiliary guide rail (13). A connecting plate (14) for distributing the force is provided at the second bending auxiliary guide rail (12) and the third bending auxiliary guide rail (13). The bending arc of the connecting plate (14) is the same as that of the first bending guide rail (1). The connecting plate (14) includes a first connecting part that fits into the second bending auxiliary guide rail (12) and a second connecting part that fits into the third bending auxiliary guide rail (13).

9. A small radius, narrow gauge switch extension guard rail device as defined in Claim 8, wherein, The third curved auxiliary guide rail (13) is provided with a working surface that is parallel to the second straight guide rail (4) near the second straight guide rail (4), and a third gap is provided between the working surface and the second straight guide rail (4) to allow the wheels of the rail vehicle to travel.

10. A small radius, narrow gauge switch extension guard rail device as defined in Claim 1, wherein, The barrier gate (11) has two working states: straight-going state and steering assist state. When the barrier gate (11) is in the straight-going state, the barrier gate (11) is aligned with the first straight-going guide rail (3). When the barrier gate (11) is in the steering assist state, the barrier gate (11) is parallel to the tangent of the second curved guide rail (2). A gap is provided between the barrier gate (11) and the second curved guide rail (2) to provide guidance for the steering of the rail vehicle wheels.

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