A measuring tool for measuring the amount of misalignment of a single open turnout point rail

Abstract

The utility model discloses a kind of measuring tools of measuring railway single opening turnout switch tongue stagger amount, it is characterized by: including bottom plate, one end of the bottom plate is equipped with first L-shaped plate, first flat plate is equipped on the first L-shaped plate, first guide wheel is equipped below the flat plate, second L-shaped plate is equipped on the other end of the bottom plate, second flat plate is hinged on the second L-shaped plate, sliding shaft is equipped on the second flat plate, spring is equipped between the sliding shaft and the second flat plate, second guide wheel is equipped on the sliding shaft, slide rail is equipped on the bottom plate, a plurality of sliding blocks are equipped on the slide rail, laser range finder is equipped on the sliding block, and it is detachably connected between the laser range finder and the sliding block.The utility model solves the problem that existing technology is difficult to measure curved rail and straight rail of turnout main rail synchronously under the same reference positioning.

Description

Technical Field

[0001] This utility model relates to the field of railway track measurement technology, and in particular to a measuring tool for measuring the phase misalignment of the switch points of a single railway turnout. Background Technology

[0002] The phase misalignment of railway turnout switch rails is one of the essential aspects of routine turnout inspections. Currently, the industry commonly uses a square ruler (support ruler) + straight steel ruler for measurement, but this method suffers from drawbacks such as complex operation procedures and large measurement data errors. To address these issues, existing technology, Chinese invention patent publication number CN120443521A, discloses a novel portable high-precision switch rail phase misalignment measuring instrument for railways. It utilizes laser ranging technology and employs a fixed adjustable base to achieve phase misalignment measurement with the track frame as the reference.

[0003] However, in the application of the above-mentioned existing technologies, the actual measurement of the misalignment of the turnout switch rails requires simultaneous data collection on both the non-working and working sides of the turnout main rail. The existing technologies only measure one side of the main rail at a time, which requires repeated reference positioning during the measurement process, increasing the workload and the error value of the data. Utility Model Content

[0004] The purpose of this invention is to solve the problem that existing technologies make it difficult to simultaneously measure the curved and straight rails of the turnout's main track under the same reference positioning.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A measuring tool for measuring the phase misalignment of the switch points of a single railway turnout, characterized in that: it includes a base plate, one end of which is provided with a first L-shaped plate, a first flat plate on the first L-shaped plate, a first guide wheel below the flat plate, a second L-shaped plate on the other end of the base plate, a second flat plate hinged to the second L-shaped plate, a sliding shaft on the second flat plate, a spring between the sliding shaft and the second flat plate, a second guide wheel on the sliding shaft, a slide rail on the base plate, a plurality of sliders on the slide rail, a laser rangefinder on each slider, and the laser rangefinder being detachably connected to the slider.

[0006] Preferably, the base plate includes a first substrate and a second substrate, the first substrate and the second substrate are hinged together, the first L-shaped plate is connected to the first substrate, and the second L-shaped plate is connected to the second substrate.

[0007] Preferably, the slide rail includes a first guide rail and a second guide rail, the first guide rail is located on the first substrate, the second guide rail is located on the second substrate, and the slider is slidably connected to both the first guide rail and the second guide rail.

[0008] Preferably, a length adjustment device is further provided between the first L-shaped plate and the first substrate. The length adjustment device includes a first connecting block and a second connecting block. The first connecting block is located at the bottom of the first L-shaped plate, and the second connecting block is connected to the first substrate. A first adjusting rod is provided on the second connecting block. The first adjusting rod rotates relative to the second connecting block about its own axis, and the first adjusting rod is threadedly connected to the first connecting block.

[0009] Preferably, the first connecting block is provided with a plurality of sliding rods, and the second connecting block is provided with a plurality of sliding grooves, wherein the sliding rods can slide relative to the sliding grooves.

[0010] Preferably, a height adjustment device is provided between the slider and the laser rangefinder. The height adjustment device includes a lifting plate, and a second adjusting rod is provided on the lifting plate. The second adjusting rod is threadedly connected to the lifting plate and is located on the slider. The slider is also provided with a plurality of guide rods, which pass through the lifting plate. The lifting plate is engaged with the laser rangefinder.

[0011] The beneficial effects proposed by this utility model are as follows: The surveyor first places the base plate parallel to the rail. During this process, the first guide wheel engages with the side of the rail, while the first and second flat plates are mounted on the top of the rail. It should be noted that the first guide wheel needs to be placed on the non-working side of the turnout main rail, using this as the measurement reference. Subsequently, the second guide wheel is placed on the working side of the turnout main rail, and the two are engaged. It should be noted that the connection between the first flat plate, the first L-shaped plate, and the base plate is a fixed connection, and all maintain the same straightness. Since the second flat plate and the second L-shaped plate are hinged, the second flat plate can rotate and adjust around the second L-shaped plate as the center. This ensures that the base plate always uses the non-working side of the turnout main rail as the reference, reducing the positioning error caused by the straightness deviation between the base plate and the reference side during the arrangement process, which affects the projection point of the laser rangefinder's measuring beam. Furthermore, when it is necessary to adjust the distance between the laser rangefinder and the turnout switch rail, a thrust is applied to the base plate, allowing the base plate to slide relative to the turnout main rail. At this time, both the first and second guide wheels slide in close contact with the turnout main rail, while the second flat plate rotates at an angle on the horizontal plane relative to the second L-shaped plate. Since the spacing between the turnout main rails varies over a certain distance and is not the same value, the second guide wheel, as a movable side wheel, needs to have an adaptive adjustment function relative to the first guide wheel. During this process, the turnout main rail... The working side applies a reverse thrust to the second guide wheel. At this time, the sliding shaft will move outward under this reverse thrust, and the sliding shaft will compress the spring synchronously. This enables the second guide wheel to adaptively adjust according to the distance between the turnout's main rails. This is beneficial because it is not necessary to disconnect the first guide wheel from the reference side during the adjustment of the distance between the laser rangefinder and the turnout switch rail. This ensures the consistency of the reference positioning, further improves the accuracy of the laser rangefinder measurement, reduces the complexity of repeatedly performing reference positioning in multiple measurements, and improves work efficiency.

[0012] Furthermore, after completing the arrangement of the base plate described above, the laser rangefinder is installed on the slider, and the slider is slidably connected to the slide rail, so that the laser rangefinder can be aligned with the curved switch rail and the straight switch rail of the turnout respectively, so as to measure both at the same time, thereby improving the accuracy of the measurement value.

[0013] Furthermore, the laser rangefinder and the slider are detachably connected, and can be, but are not limited to, a snap-fit ​​connection. This allows the laser rangefinder's emitting part to be adjusted to face the turnout switch rail when the reference side changes, i.e., when the non-working side of the turnout's main rail changes. It also facilitates the removal and proper storage of the laser rangefinder from the slider when it is not in operation, thus reducing the risk of equipment damage due to bumps during transportation. Attached Figure Description

[0014] Figure 1 This is a perspective view of a measuring tool for measuring the phase misalignment of the switch points of a single railway turnout, as proposed in this utility model. Figure 2 This is a partial enlarged view of point A in a three-dimensional diagram of a measuring tool for measuring the phase misalignment of the switch rails of a single railway turnout, as proposed in this utility model. Figure 3 This is a schematic diagram showing the storage of a measuring tool for measuring the phase misalignment of the switch points of a single railway turnout, as proposed in this utility model. Figure 4 This is a schematic diagram of the connection of the U-shaped frame of a measuring tool for measuring the phase misalignment of the switch points of a single railway turnout, as proposed in this utility model. Figure 5 This is a schematic diagram of the installation of the second guide wheel of a measuring tool for measuring the phase misalignment of the switch points of a single railway turnout, as proposed in this utility model. Figure 6 This is a perspective view of a height adjustment device for a measuring tool for measuring the phase misalignment of the switch points of a single railway turnout, as proposed in this utility model.

[0015] In the diagram: 1. First L-shaped plate; 2. First flat plate; 3. First guide wheel; 4. Second L-shaped plate; 5. Second flat plate; 6. Sliding shaft; 7. Second guide wheel; 8. Spring; 9. Slider; 10. First base plate; 11. Second base plate; 12. U-shaped frame; 13. Bolt; 14. Nut; 15. First guide rail; 16. Second guide rail; 17. First connecting block; 18. Second connecting block; 19. First adjusting rod; 20. Sliding rod; 21. Sliding groove; 22. Laser rangefinder; 23. Lifting plate; 24. Second adjusting rod; 25. Guide rod. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0017] Reference Figures 1 to 6A measuring tool for measuring the misalignment of the switch points of a single railway turnout includes a base plate. One end of the base plate has a first L-shaped plate 1, on which a first flat plate 2 is mounted. Below the flat plate is a first guide wheel 3. The other end of the base plate has a second L-shaped plate 4, on which a second flat plate 5 is hinged. The second flat plate 5 has a sliding shaft 6, and a spring 8 is provided between the sliding shaft 6 and the second flat plate 5. The sliding shaft 6 has a second guide wheel 7. The base plate has a slide rail, on which several sliders 9 are mounted. Each slider 9 has a laser rangefinder 22, and the laser rangefinder 22 is detachably connected to the slider 9. Specifically, the surveyor first places the base plate parallel to the rail. During this process, the first guide wheel 3 engages with the side of the rail, while the first plate 2 and the second plate 5 are mounted on the top of the rail. It should be noted that the first guide wheel 3 needs to be placed on the non-working side of the turnout main rail and used as the measurement reference. Then, the second guide wheel 7 is placed on the working side of the turnout main rail and engaged with it. It should be noted that the connection between the first plate 2, the first L-shaped plate 1, and the base plate is a fixed connection and all maintain the same straightness. Since the second plate 5 is hinged to the second L-shaped plate 4, the second plate 5 can be rotated and adjusted with the second L-shaped plate 4 as the center. This ensures that the base plate always uses the non-working side of the turnout main rail as the reference, reducing the positioning error caused by the straightness deviation between the base plate and the reference side during the arrangement process, which affects the projection point of the measuring beam of the laser rangefinder 22. Furthermore, when it is necessary to adjust the distance between the laser rangefinder 22 and the turnout switch rail, a thrust is applied to the base plate, allowing the base plate to slide relative to the turnout main rail. At this time, both the first guide wheel 3 and the second guide wheel 7 slide in close contact with the turnout main rail, while the second flat plate 5 rotates at an angle on the horizontal plane relative to the second L-shaped plate 4. Since the spacing between the turnout main rails varies over a certain distance and is not the same value, the second guide wheel 7, as a movable side wheel, needs to have an adaptive adjustment function relative to the first guide wheel 3. During this process, the working... The working edge applies a reverse thrust to the second guide wheel 7. At this time, the sliding shaft 6 will move outward under this reverse thrust, and the sliding shaft 6 will compress the spring 8 simultaneously. This enables the second guide wheel 7 to adaptively adjust according to the distance between the turnout's main rails. This is beneficial because it is not necessary to disconnect the first guide wheel 3 from the reference edge during the adjustment of the distance between the laser rangefinder 22 and the turnout switch rail. This ensures the consistency of the reference positioning, further improves the accuracy of the laser rangefinder 22 measurement, reduces the complexity of repeatedly performing reference positioning in multiple measurements, and improves work efficiency.

[0018] Furthermore, after completing the arrangement of the base plate described above, the laser rangefinder 22 is installed on the slider 9, and the slider 9 is slidably connected to the slide rail, so that the laser rangefinder 22 can be aligned with the curved tip rail and the straight tip rail of the turnout respectively, so as to measure both at the same time, thereby improving the accuracy of the measurement value.

[0019] Furthermore, the laser rangefinder 22 and the slider 9 are detachably connected, and can be, but are not limited to, a snap-fit ​​connection. This allows the emitting part of the laser rangefinder 22 to be adjusted to face the switch tip rail when the reference side changes, i.e., when the non-working side of the turnout's main rail changes. It also facilitates the removal and proper storage of the laser rangefinder 22 from the slider 9 when it is not in operation, thus reducing the risk of equipment damage due to bumps during transportation.

[0020] Specifically, the base plate includes a first substrate 10 and a second substrate 11. The first substrate 10 and the second substrate 11 are hinged together. The first L-shaped plate 1 is connected to the first substrate 10, and the second L-shaped plate 4 is connected to the second substrate 11. The hinged connection between the first substrate 10 and the second substrate 11 allows them to be flipped and folded relative to each other. This shortens the overall length of the device during storage, making it easier for measurement personnel to store and transport, thus reducing their workload.

[0021] Furthermore, the first substrate 10 and the second substrate 11 are hinged together by a U-shaped frame 12. Bolts 13 are provided between the U-shaped frame 12 and the first substrate 10 and the second substrate 11. The bolts 13 all pass through the U-shaped frame 12, the first substrate 10 and the second substrate 11. Nuts 14 are threaded onto the bolts 13. When the first substrate 10 and the second substrate 11 are in the retracted state, the nuts 14 are loose on the bolts 13, and the first substrate 10 and the second substrate 11 can be flipped relative to each other. When the first substrate 10 and the second substrate 11 are in the detection state, they are in the same straight line. Then, the nuts 14 are rotated, so that the nuts 14, together with the bolts 13, lock the first substrate 10 and the second substrate 11 onto the U-shaped frame 12, thereby realizing the unfolding of this device.

[0022] It should be noted that, in the above method, the U-shaped frame 12 enables the first substrate 10 and the second substrate 11 to rotate relative to each other within an angle range of 0-90 degrees.

[0023] Specifically, the slide rail includes a first guide rail 15 and a second guide rail 16. The first guide rail 15 is located on the first substrate 10, and the second guide rail 16 is located on the second substrate 11. The sliders 9 are slidably connected to both the first guide rail 15 and the second guide rail 16. Since the first substrate 10 and the second substrate 11 can be flipped relative to each other, the slide rail is divided into the first guide rail 15 and the second guide rail 16. This further enables the device to be folded in half to shorten its length when stored. Simultaneously, because the slide rail is divided into the first guide rail 15 and the second guide rail 16, the risk of mutual interference between the sliders 9 is reduced, minimizing the risk of structural damage caused by collisions between the sliders 9 during use.

[0024] Specifically, a length adjustment device is provided between the first L-shaped plate 1 and the first base plate 10. The length adjustment device includes a first connecting block 17 and a second connecting block 18. The first connecting block 17 is located at the bottom of the first L-shaped plate 1, and the second connecting block 18 is connected to the first base plate 10. A first adjusting rod 19 is provided on the second connecting block 18. The first adjusting rod 19 rotates relative to the second connecting block 18 around its own axis. The first adjusting rod 19 is threadedly connected to the first connecting block 17. Since there is an error in the distance between the main rails of the turnout, the distance between the first guide wheel 3 and the second guide wheel 7 can be adjusted using the length adjustment device. In this process, by rotating the first adjusting rod 19, the first adjusting rod 19 can rotate relative to the second connecting block 18 around its own axis. The first adjusting rod 19 is threadedly connected to the first connecting block 17, thereby making the distance between the first connecting block 17 and the second connecting block 18 adjustable. Consequently, the distance between the first guide wheel 3 and the second guide wheel 7 can be adjusted according to the distance between the main rails of the turnout.

[0025] Specifically, the first connecting block 17 is provided with a plurality of sliding rods 20, and the second connecting block 18 is provided with a plurality of sliding grooves 21. The sliding rods 20 can slide relative to the sliding grooves 21. During the adjustment process of the first connecting block 17 and the second connecting block 18, since the first adjusting rod 19 is a single rod adjustment, its connection strength is limited. Under long-term use, it is prone to strength fatigue and deformation. Therefore, it is necessary to set the sliding rods 20 and the sliding grooves 21 between the first connecting block 17 and the second connecting block 18. Through the sliding connection between the sliding rods 20 and the sliding grooves 21, the sliding rods 20 can replace the first adjusting rod 19 and become the connecting component of the first connecting block 17 and the second connecting block 18 without affecting the relative sliding of the first connecting block 17 and the second connecting block 18. Moreover, the connecting component composed of multiple sliding rods 20 has higher strength than a single first adjusting rod 19, and can resist the pressure received during use. This is beneficial to maintaining the uniform plane level between the first substrate 10 and the second substrate 11, thereby improving the measurement accuracy of this device.

[0026] Specifically, a height adjustment device is provided between the slider 9 and the laser rangefinder 22. The height adjustment device includes a lifting plate 23, on which a second adjusting rod 24 is threadedly connected. The second adjusting rod 24 is located on the slider 9. The slider 9 also has several guide rods 25 that pass through the lifting plate 23. The lifting plate 23 is engaged with the laser rangefinder 22. Due to wear on the turnout main rail during use, a height difference exists between the laser rangefinder 22 and the turnout point rail when measuring the turnout point rail, making it difficult for the laser rangefinder 22 to align with the turnout point rail. Therefore, the height adjustment device is provided between the slider 9 and the laser rangefinder 22. During use, the height adjustment device is activated by rotating the second adjusting rod 24. The second adjusting rod 24 rotates relative to the slider 9 and the lifting plate 23 around its own axis, and the second adjusting rod 24 is threadedly connected to the lifting plate 23. The threaded connection of the lowering plate 23 increases or decreases the distance between the lifting plate 23 and the slider 9, that is, the distance between the laser rangefinder 22 and the first substrate 10 or the second substrate 11. In order to improve the stability of the lifting plate 23 in the process of moving up and down relative to the slider 9, a guide rod 25 is provided between the slider 9 and the lifting plate 23. The guide rod 25 enables the lifting plate 23 to move along the center line of the guide rod 25, thereby increasing the stability of the movement of the lifting plate 23.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A measuring tool for measuring the phase misalignment of the switch points of a single railway turnout, characterized in that: The device includes a base plate, one end of which has a first L-shaped plate, a first flat plate, and a first guide wheel below the flat plate. The other end of the base plate has a second L-shaped plate, with a second flat plate hinged to it. A sliding shaft is mounted on the second flat plate, and a spring is connected between the sliding shaft and the second flat plate. A second guide wheel is mounted on the sliding shaft. A slide rail is mounted on the base plate, and several sliders are mounted on the slide rail. A laser rangefinder is mounted on each slider, and the laser rangefinder is detachably connected to the slider.

2. The measuring tool for measuring the phase misalignment of the switch points of a single railway turnout as described in claim 1, characterized in that: The base plate includes a first substrate and a second substrate, the first substrate and the second substrate are hinged together, the first L-shaped plate is connected to the first substrate, and the second L-shaped plate is connected to the second substrate.

3. The measuring tool for measuring the phase misalignment of the switch points of a single railway turnout according to claim 2, characterized in that: The slide rail includes a first guide rail and a second guide rail. The first guide rail is located on the first base plate, and the second guide rail is located on the second base plate. The slider is slidably connected to both the first guide rail and the second guide rail.

4. The measuring tool for measuring the phase misalignment of the switch points of a single railway turnout according to claim 3, characterized in that: A length adjustment device is also provided between the first L-shaped plate and the first substrate. The length adjustment device includes a first connecting block and a second connecting block. The first connecting block is located at the bottom of the first L-shaped plate, and the second connecting block is connected to the first substrate. A first adjusting rod is provided on the second connecting block. The first adjusting rod rotates relative to the second connecting block about its own axis. The first adjusting rod is threadedly connected to the first connecting block.

5. The measuring tool for measuring the phase misalignment of the switch points of a single railway turnout according to claim 4, characterized in that: The first connecting block is provided with a plurality of sliding rods, and the second connecting block is provided with a plurality of sliding grooves, wherein the sliding rods can slide relative to the sliding grooves.

6. The measuring tool for measuring the phase misalignment of the switch points of a railway single turnout according to claim 5, characterized in that: A height adjustment device is provided between the slider and the laser rangefinder. The height adjustment device includes a lifting plate, and a second adjusting rod is provided on the lifting plate. The second adjusting rod is threadedly connected to the lifting plate and is located on the slider. The slider is also provided with several guide rods that pass through the lifting plate. The lifting plate is engaged with the laser rangefinder.

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