Rail stopping device and system

Abstract

The utility model relates to the technical field of track equipment, in particular to a track stopping device and a track stopping system. The normal direction of the bottom plate is arranged in the first direction. The clamping piece is arranged on one face, in the first direction, of the bottom plate, and the distance between the clamping piece and the bottom plate is adjustable; the stopping piece is connected to the other face, in the first direction, of the bottom plate, and the stopping piece extends in the direction away from the bottom plate in the first direction; the triggering rod is connected with the stopping piece, the triggering rod extends in the direction away from the stopping piece in the second direction, and the second direction is perpendicular to the first direction; and the distance between the trigger rod and the bottom plate is adjustable. The rail backstop device can solve the technical problems that an existing rail backstop device adopts a fixed structure and is connected with a rail in a welded mode, so that the installation efficiency is low, rail base metal is damaged, and the rail backstop device cannot adapt to different operation scenes.

Description

Technical Field

[0001] This utility model relates to the field of track equipment technology, and in particular to a track stop device and system. Background Technology

[0002] To prevent trains, bridge-building machines, or other vehicles moving on the track from deviating from the designated area, track stop devices are often installed on the track. These devices typically include a base plate, a stop component, and a trigger rod. The base plate connects to the track; the stop component is attached to the upper surface of the base plate to block the vehicle's forward movement; and the trigger rod is attached to one side of the stop component and extends along the track length towards the vehicle, triggering a corresponding detection mechanism on the vehicle, such as a lateral limit switch, before the stop component, to automatically execute alarm and braking operations. However, existing track stop devices have the following problems:

[0003] (1) Existing track stop devices are mostly connected to the track by welding. Special tools such as welding guns must be used for their installation. On the one hand, the installation is time-consuming, labor-intensive and inefficient, making it difficult to meet the needs of temporary operations or rapid deployment. On the other hand, welding operations can easily cause defects such as thermal damage and thermal deformation of the track material, which will seriously affect the safety of the vehicle running on the track.

[0004] (2) Different models of vehicles have different requirements for triggering transverse limiters, which require trigger rods of different heights. Otherwise, the stopping effect of the track stop device may be negatively affected. However, the existing track stop devices are often fixed structures with fixed size and shape, which can only be applied to specific models of vehicles and cannot be flexibly adjusted according to factors such as track layout, vehicle model and vehicle running trajectory.

[0005] Based on the above problems, there is an urgent need to develop a new type of track stop device that is more convenient and flexible to use and can be adapted to different operating scenarios. Utility Model Content

[0006] The purpose of this utility model is to overcome the technical problems of existing track stop devices, which adopt a fixed structure and are welded to the track, resulting in low installation efficiency, damage to the track material, and inability to adapt to different operating scenarios, and to provide a track stop device and system.

[0007] In a first aspect, the present invention provides a track stop device, comprising:

[0008] Base plate; the normal of the base plate is set along the first direction;

[0009] A clamping member is disposed on one side of the base plate along a first direction, and the distance between the clamping member and the base plate is adjustable;

[0010] A stop member is connected to the other side of the base plate along the first direction, and the stop member extends along the first direction in a direction away from the base plate.

[0011] The trigger rod is connected to the stop and extends in a second direction away from the stop, the second direction being perpendicular to the first direction; the distance between the trigger rod and the base plate is adjustable.

[0012] When the track stop device of this solution needs to be installed on the track, the distance between the clamping part and the base plate can be adjusted to be greater than the thickness of the track flange; then move the track stop device so that the clamping part and the base plate are located on the upper and lower sides of the track flange respectively; then adjust the distance between the clamping part and the base plate to match the thickness of the track flange, so that the clamping part and the base plate can be firmly clamped to the track, and friction is generated between the clamping part and the track, and between the base plate and the track, thereby achieving relative fixation of the track stop device and the track.

[0013] When it is necessary to remove this track stop device from the track, the distance between the clamp and the base plate is adjusted to be greater than the thickness of the track flange. This releases the track stop device from the track, allowing it to be moved freely to other positions to adapt to different track layouts or triggering requirements.

[0014] When changes occur in the track layout, vehicle model, or vehicle trajectory, resulting in corresponding changes in triggering requirements, this track stop device can also adjust the distance between the trigger rod and the base plate (i.e., the height of the trigger rod), thereby adapting to new triggering requirements without customizing new components or removing the base plate.

[0015] In summary, the track stop device in this solution can clamp the track to the base plate using clamping components, thereby fixing the track stop device relative to the track. Compared with the welding connection in the prior art, the installation of this solution does not require the use of professional equipment such as welding guns, and it can be removed from the track or repositioned by loosening the clamping components, which has higher installation efficiency and deployment flexibility, and will not damage the performance of the track base material. At the same time, the position of the trigger rod relative to the base plate in this solution can also be adjusted, thereby meeting different triggering requirements and making this solution more versatile.

[0016] Preferably, the end of the trigger rod away from the stop is provided with an inclined segment, and the length direction of the inclined segment has an angle with the second direction.

[0017] This solution adds an inclined segment to the end of the trigger rod. The inclined surface of the segment can transform the instantaneous rigid collision between the trigger rod and the vehicle lateral movement limiter into a long-term sliding contact, thereby reducing the maximum impact force between the trigger rod and the lateral movement limiter and reducing the risk of mutual damage to the track stop device and the vehicle. At the same time, the longer contact time is also more conducive to the vehicle completing the trigger action more smoothly, so as to smoothly execute alarm and braking actions, thereby further ensuring the safety of the vehicle.

[0018] Preferably, a connecting segment is provided at one end of the trigger rod near the stop member, the length of the connecting segment is set along the first direction, and the connecting segment abuts against the surface of the stop member.

[0019] This solution adds a connecting segment extending in the first direction to the end of the trigger rod extending in the second direction, which can increase the contact area between the trigger rod and the stop, thereby enhancing the connection reliability between the trigger rod and the stop and reducing the risk of local breakage at the connection between the trigger rod and the stop after the trigger rod is impacted by the vehicle.

[0020] Preferably, the connecting segment is provided with at least two sets of connecting holes, and the connecting holes are spaced apart along the first direction; the stop is connected with a connecting pin, and the connecting pin passes through at least one set of connecting holes.

[0021] This solution provides one specific connection method between the trigger rod and the stop; since the connecting holes are spaced apart along the first direction, the distance between the trigger rod and the base plate can be adjusted by inserting the connecting pin into the connecting holes at different positions; and the insertion and removal of the connecting pin and the connecting hole can ensure the reliability of the connection between the trigger rod and the stop, and avoid the situation where the position of the trigger rod relative to the stop is offset under external interference, resulting in the trigger rod failing to accurately trigger the vehicle lateral movement limiter.

[0022] Preferably, a level is also provided on the base plate.

[0023] This solution allows workers to monitor and confirm the tilt angle of the track stop device in real time during installation, enabling them to take appropriate measures to readjust it if the track stop device tilts. This improves the installation reliability and the uniformity of force on the track stop device, thereby preventing the track stop device from failing due to uneven load caused by tilting.

[0024] Preferably, it also includes a screw, the length of which is set along a first direction, and the screw passes through the base plate and the clamping member; a limit nut and a limit stop are provided at intervals on the screw, and the limit nut and the limit stop respectively abut against the opposite sides of the base plate and the clamping member.

[0025] This solution provides one specific connection method between the base plate and the clamping component. The base plate and the clamping component can be driven to move closer or further apart by rotating the limiting nut. At the same time, the self-locking property of the threaded connection between the screw and the limiting nut is used to lock the relative position of the clamping component and the base plate, ensuring that the clamping component and the base plate can reliably clamp the track.

[0026] Preferably, a reinforcing rib is also connected between the side of the stop member away from the end of the trigger rod and the base plate.

[0027] This solution can increase the strength and rigidity of the overall structure formed by the combination of the stop and the base plate, suppress the deformation of the stop under the load generated by the vehicle, and thus ensure the stopping effect of this solution on the vehicle.

[0028] Preferably, the stop is provided with a handle.

[0029] This solution improves the portability of the track stop device, making it easier for staff to manually move and transport the track stop device, thus making it easier to meet deployment needs in complex environments.

[0030] In a second aspect, the present invention provides a track stop system, comprising at least two track stop devices of the present invention, the track stop devices being spaced apart along a second direction, and adjacent track stop devices being connected by a cable.

[0031] The track stop system in this solution connects two track stop devices to each other via cables. When a vehicle impacts one track stop device, the cables transfer the load to the other, allowing both track stop devices to jointly restrain the vehicle's movement. This not only further improves the stopping effect of the track stop devices, thus ensuring the vehicle's safety, but also reduces the strength and stiffness requirements of individual track stop devices while maintaining the same stopping effect. This helps to reduce the size and weight of the track stop devices, thereby improving their portability and reducing manufacturing costs and deployment difficulty.

[0032] Preferably, it also includes a connecting rod and a turnbuckle; one end of the connecting rod is oscillatingly connected to the base plate, and the turnbuckle is oscillatingly connected to the other end of the connecting rod, with the oscillation axis of the connecting rod and the oscillation axis of the turnbuckle being parallel to each other; a cable is connected to the end of the turnbuckle away from the connecting rod.

[0033] This solution constructs a planar motion mechanism similar to a parallelogram mechanism using connecting rods, turnbuckles, tracks, and cables. When one of the two track stop devices is impacted by the vehicle and moves away from the other, causing tension on the cable, the planar motion mechanism will deform under the tension of the cable (the angle between the connecting rod and the base plate, and the angle between the connecting rod and the turnbuckle will change). This transforms the instantaneous rigid impact between the cable and the base plate into a long-term flexible impact, thereby reducing the maximum peak load on the base plate, connecting rods, turnbuckles, and cables, and decreasing the probability of damage and failure of the base plate, connecting rods, turnbuckles, and cables under vehicle impact.

[0034] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0035] 1. This utility model provides a track stop device that can fix the track relative to the base plate by clamping the track with clamping parts. Compared with the welding connection in the prior art, the installation of this solution does not require the use of professional equipment such as welding guns, and the track can be removed from the track or its position readjusted by loosening the clamping parts. It has higher installation efficiency and deployment flexibility, and will not damage the performance of the track base material. At the same time, the position of the trigger rod relative to the base plate can also be adjusted to meet different triggering requirements, making this solution more versatile.

[0036] 2. This utility model provides a track stop system that connects two track stop devices to each other via cables. When a vehicle impacts one of the track stop devices, the cables transfer the load to the other track stop device, allowing the two track stop devices to jointly restrain the movement of the vehicle. On the one hand, this further improves the stopping effect of the track stop devices, thereby ensuring the safety of the vehicle. On the other hand, it also reduces the strength and stiffness requirements of a single track stop device while maintaining the same stopping effect, thus helping to reduce the size and weight of the track stop devices, thereby improving their portability and reducing their manufacturing cost and deployment difficulty. Attached Figure Description

[0037] Figure 1 This is a three-dimensional structural diagram of a track stop device according to the present invention;

[0038] Figure 2 This is a side view of a track stop device according to the present invention;

[0039] Figure 3 This is a top view schematic diagram of a track stop device according to the present invention;

[0040] Figure 4 This is a front view structural diagram of a track stop device according to this utility model;

[0041] Figure 5 This is a three-dimensional structural diagram of a track stop system according to this utility model;

[0042] Figure 6 This is a side view of a track stop system according to the present invention.

[0043] Figure 7 This is a top view schematic diagram of a track stop system according to this utility model;

[0044] icon:

[0045] 1-Base plate;

[0046] 2-Clamping components;

[0047] 3-Stop; 31-Connecting pin; 32-Reinforcing rib; 33-Handle;

[0048] 4-Trigger rod; 41-Inclined segment; 42-Extension segment; 43-Connecting segment; 44-Connecting hole;

[0049] 5-Level;

[0050] 6-Screw; 71-Limit nut; 72-Limit stop;

[0051] 8-Cable; 9-Connecting rod; 10-Turn bolt; 11-Rail. Detailed Implementation

[0052] The present invention will be further described in detail below with reference to specific embodiments. However, it should not be construed as limiting the scope of the present invention to the following embodiments; all technologies implemented based on the content of the present invention fall within the scope of the present invention.

[0053] Unless otherwise specified, the use of terms such as "upper," "lower," "left," "right," "center," "inner," and "outer" to indicate orientation or positional relationships in the description of specific embodiments of this utility model is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product / equipment / device is typically placed during use. These terms are merely for the purpose of facilitating the description of the utility model solution or simplifying the description in specific embodiments, enabling those skilled in the art to quickly understand the solution, and do not indicate or imply that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship. Therefore, they should not be construed as limitations on this utility model.

[0054] Furthermore, the use of terms such as "horizontal," "vertical," "suspended," and "parallel" does not imply that the corresponding device / component / element must be absolutely horizontal, vertical, suspended, or parallel, but rather that it can be slightly tilted or have a deviation. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," not that the structure must be completely horizontal, but can be slightly tilted. Alternatively, it can be simplified to mean that the corresponding device / component / element, when set in a "horizontal," "vertical," "suspended," or "parallel" direction, can have an error / deviation of ±10% relative to the corresponding direction, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, and more preferably within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the present invention. In addition, the use of terms such as "first," "second," and "third" is only used to distinguish the description of the same or similar components and should not be construed as emphasizing or implying the relative importance of a specific component. Furthermore, in the description of the embodiments of the present invention, "several," "multiple," and "several" represent at least two. It can be any number of 2, 3, 4, 5, 6, 7, 8, 9, or even more than 9.

[0055] Furthermore, in the description of the technical solution of this utility model, unless otherwise explicitly specified / limited / restricted, the terms "set up," "install," "connect," "link," "equipped with," "laid out," and "arranged" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to common connection methods in the art, such as welding, riveting, bolting, and threaded connections. Such connections can be mechanical, electrical, or communication connections; they can be direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components.

[0056] Example 1

[0057] like Figures 1 to 4 As shown, a track stop device includes a base plate 1, a clamping member 2, a stop member 3, and a trigger rod 4. The base plate 1 is arranged with its normal direction along a first direction. The clamping member 2 is disposed on the side of the base plate 1 facing downward along the first direction, and the distance between the clamping member 2 and the base plate 1 is adjustable. The stop member 3 is connected to the side of the base plate 1 facing upward along the first direction and extends in the direction away from the base plate 1 along the first direction. The trigger rod 4 is connected to the stop member 3 and extends in the direction away from the stop member 3 along a second direction, and the distance between the trigger rod 4 and the base plate 1 is adjustable.

[0058] exist Figures 2 to 4 ,as well as Figures 6 to 7The Cartesian coordinate system is also used to mark the various directions in this embodiment; the direction indicated by arrow Z (Z-axis) is the first direction, that is, the height direction; the direction indicated by arrow X (X-axis) is the second direction, that is, the extension direction of track 11; and the direction indicated by arrow Y (Y-axis) is the width direction of track 11.

[0059] In optional embodiments, the distance between the base plate 1 and the clamping member 2 can be adjusted in various ways, including but not limited to: providing a movable mechanism with a degree of freedom of movement along the Z-axis between the base plate 1 and the clamping member 2, such as a slide rail slider mechanism with a length along the Z-axis, a screw nut mechanism with a length along the Z-axis, or a telescopic rod with a telescopic direction along the Z-axis; or providing multiple mounting positions for the clamping member 2 at intervals along the Z-axis on the base plate 1, and changing the distance between the clamping member 2 and the base plate 1 by changing the mounting position of the clamping member 2.

[0060] Similarly, the distance between the trigger rod 4 and the base plate 1 can be adjusted by either setting a movable mechanism with a degree of freedom of movement along the Z-axis on the stop 3, or setting multiple mounting positions for the trigger rod 4 at intervals along the Z-axis on the stop 3.

[0061] In optional embodiments, the specific structural form of the clamping member 2 includes, but is not limited to, a plate-like member, a claw-like member, or a block-like member; for example... Figure 2 and Figure 4 As shown, two plate-shaped clamping members 2 are respectively provided on both sides of the base plate 1 along the Y-axis direction; the clamping members 2 are arranged along the X-axis direction relative to the base plate 1, and the size along the Y-axis direction is smaller than the corresponding size of the base plate 1, so as to maximize the contact area between the clamping members 2 and the track 11 and ensure the stability of the clamping effect.

[0062] In an optional embodiment, a screw 6 is also included. The length of the screw 6 is set along a first direction. The screw 6 passes through the base plate 1 and the clamping member 2. A limit nut 71 and a limit stop 72 are provided on the screw 6 at intervals. The limit nut 71 and the limit stop 72 abut against the opposite sides of the base plate 1 and the clamping member 2, respectively. Rotating the limit nut 71 can make the limit nut 71 move along the axial direction of the screw 6, thereby changing the distance between the limit nut 71 and the limit stop 72, and thus driving the distance between the base plate 1 and the clamping member 2 to change.

[0063] In the above embodiments, the specific structural form of the limiting stop 72 includes, but is not limited to, a retaining ring or stop block fixedly connected to the screw 6, for example... Figure 2 As shown, a hexagonal head is fixedly connected to one end of the screw 6 as a limit stop 72; or two sets of limit nuts 71 can be spaced apart on the screw 6, and one set of limit nuts 71 can be used as the limit stop 72.

[0064] In optional embodiments, the specific structural form of the stop member 3 includes, but is not limited to, a plate-like member, a claw-like member, or a block-like member; for example... Figures 1 to 4 As shown, the stop 3 is a plate-shaped component, and its normal direction is set along the second direction.

[0065] In an optional embodiment, a reinforcing rib 32 is also connected between the side of the stop member 3 facing away from the end of the trigger rod 4 and the base plate 1. For example Figure 2 and Figure 3 As shown, two triangular reinforcing ribs 32 are provided on the left side of the stop member 3 along the X-axis direction, and the two reinforcing ribs 32 are distributed at intervals along the Y-axis direction.

[0066] In an optional embodiment, the stop 3 is provided with a handle 33. For example... Figure 1 As shown, a steel section is connected between two adjacent reinforcing ribs 32 as a handle 33, which not only makes it convenient for workers to carry the track stop device, but also further enhances the strength and rigidity of the track stop device.

[0067] In optional implementations, such as Figure 2 As shown, the end of the trigger rod 4 away from the stop member 3 is provided with an inclined segment 41, and the length direction of the inclined segment 41 has an angle with the second direction.

[0068] In optional implementations, such as Figure 2 As shown, a connecting segment 43 is provided at one end of the trigger rod 4 near the stop member 3. The length of the connecting segment 43 is set along the first direction, and the side of the connecting segment 43 facing the stop member 3 abuts against the surface of the stop member 3.

[0069] In optional implementations, such as Figure 2 As shown, since the length directions of the inclined segment 41 and the connecting segment 43 are not parallel to the second direction, this embodiment also provides an extension segment 42 between the inclined segment 41 and the connecting segment 43. The length of the extension segment 42 is set along the second direction so that the inclined segment 41 can move away from the stop member 3 along the second direction, thereby better realizing the function of triggering the safety measures on the vehicle in advance.

[0070] In an optional embodiment, the trigger rod 4 is welded from structural steel, such as angle iron, channel steel or I-beam, which can ensure that the trigger rod 4 has sufficient strength and reduce the manufacturing difficulty of the trigger rod 4.

[0071] In an optional embodiment, the connecting segment 43 is provided with at least two sets of connecting holes 44, and the connecting holes 44 are spaced apart along the first direction; the stop member 3 is connected with a connecting pin 31, and the connecting pin 31 passes through at least one set of connecting holes 44. For example Figure 2As shown, six through holes are spaced apart along the Z-axis on the connecting segment 43 as connecting holes 44; correspondingly, two connecting pins 31 are also spaced apart along the Z-axis on the reinforcing rib 32 of the stop 3; the connecting pins 31 can be inserted into the connecting holes 44 to connect the trigger rod 4 and the stop 3, and the distance between the trigger rod 4 and the base plate 1 can be changed by inserting the connecting pins 31 into the connecting holes 44 at different positions.

[0072] In the above embodiments, the specific structure of the connecting pin 31 includes, but is not limited to, an optical axis, a stepped axis, or a threaded axis; for example... Figure 1 and Figure 4 As shown, the connecting pin 31 uses a hexagonal head bolt with a nut attached. The reinforcing rib 32 and the connecting segment 43 are clamped between the hexagonal head and the nut. Tightening the nut will clamp the reinforcing rib 32 and the connecting segment 43, thereby further improving the connection stability between the trigger rod 4 and the stop 3.

[0073] In optional implementations, such as Figures 1 to 4 As shown, weight-reducing grooves are also provided in the middle of the base plate 1 and the stop 3 along the Y-axis to further reduce the weight of the base plate 1 and the stop 3 and improve the portability of this track stop device.

[0074] In an optional embodiment, a level 5 is also provided on the base plate 1. The level 5 can adopt existing technology, such as a bubble level or a digital inclinometer; the detection range of the level 5 is determined according to actual needs, for example, it is used to detect at least one of the levelness of the base plate 1 along the X-axis direction and the levelness of the base plate 1 along the Y-axis direction.

[0075] Example 2

[0076] like Figures 5 to 7 As shown, a track stop system includes at least two track stop devices as described in Embodiment 1. The track stop devices are spaced apart on the track 11 along a second direction. Adjacent track stop devices are connected by a cable 8, for example, by a safety rope, steel cable, or steel rod. The specific connection positions of the cable 8 include, but are not limited to, the base plate 1 and the stop member 3.

[0077] In an optional embodiment, it also includes a connecting rod 9 and a turnbuckle 10; one end of the connecting rod 9 is oscillatingly connected to the base plate 1, and the turnbuckle 10 is oscillatingly connected to the other end of the connecting rod 9. The oscillation axis of the connecting rod 9 and the oscillation axis of the turnbuckle 10 are parallel to each other. The cable 8 is connected to the end of the turnbuckle 10 away from the connecting rod 9, so that the track 11, the base plate 1, the connecting rod 9, the turnbuckle 10 and the cable 8 together form a planar connecting rod 9 mechanism, which can deform after being impacted and transform the instantaneous rigid impact into a long-term flexible impact.

[0078] In the above embodiments, the turnbuckle 10 can be made using existing technology, such as a closed turnbuckle 10, an OO-type turnbuckle 10, a CC-type turnbuckle 10, or a CO-type turnbuckle 10.

[0079] In an optional embodiment, the connecting rod 9 can be sleeved on one of the screws 6 of the base plate 1, thereby utilizing the existing screw 6 as the swing axis of the connecting rod 9 and improving the structural efficiency of this embodiment.

[0080] The above content is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A track stop device, characterized in that, include: Base plate (1); the normal of the base plate (1) is arranged along the first direction; A clamping member (2) is disposed on one side of the base plate (1) along a first direction, and the distance between the clamping member (2) and the base plate (1) is adjustable; Stop (3), the stop (3) is connected to the other side of the base plate (1) along the first direction, the stop (3) extends in the first direction away from the base plate (1); A trigger rod (4) is connected to the stop (3). The trigger rod (4) extends in a second direction away from the stop (3), and the second direction is perpendicular to the first direction. The distance between the trigger rod (4) and the base plate (1) is adjustable.

2. The track stop device according to claim 1, characterized in that, The trigger rod (4) has an inclined segment (41) at one end away from the stop (3), and the length direction of the inclined segment (41) has an angle with the second direction.

3. A track stop device according to claim 1, characterized in that, The trigger rod (4) has a connecting segment (43) at one end near the stop (3). The length of the connecting segment (43) is set along the first direction, and the connecting segment (43) abuts against the surface of the stop (3).

4. A track stop device according to claim 3, characterized in that, The connecting segment (43) is provided with at least two sets of connecting holes (44), and each set of connecting holes (44) is spaced apart along the first direction; the stop (3) is connected with a connecting pin (31), and the connecting pin (31) passes through at least one set of connecting holes (44).

5. A track stop device according to any one of claims 1 to 4, characterized in that, A level (5) is also installed on the base plate (1).

6. A track stop device according to any one of claims 1 to 4, characterized in that, It also includes a screw (6), the length of which is set along a first direction, and the screw (6) passes through the base plate (1) and the clamping member (2); a limit nut (71) and a limit stop (72) are provided on the screw (6) at intervals, and the limit nut (71) and the limit stop (72) respectively abut against the opposite sides of the base plate (1) and the clamping member (2).

7. A track stop device according to any one of claims 1 to 4, characterized in that, The stop (3) is connected to the base plate (1) by a reinforcing rib (32) on the side opposite to the end of the trigger rod (4).

8. A track stop device according to any one of claims 1 to 4, characterized in that, The stop (3) is provided with a handle (33).

9. A track stop system, characterized in that, It includes at least two track stop devices as described in any one of claims 1 to 8, the track stop devices being spaced apart along a second direction, and adjacent track stop devices being connected by a cable (8).

10. A track stop system according to claim 9, characterized in that, It also includes a connecting rod (9) and a turnbuckle (10); one end of the connecting rod (9) is oscillatingly connected to the base plate (1), and the turnbuckle (10) is oscillatingly connected to the other end of the connecting rod (9). The oscillation axis of the connecting rod (9) and the oscillation axis of the turnbuckle (10) are parallel to each other; the cable (8) is connected to the end of the turnbuckle (10) away from the connecting rod (9).

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