A rapid detection tool for the geometric dimensions of ballastless track guard wheel rails

By designing a rapid detection tool for the geometric dimensions of ballastless track guard rails, and utilizing a magnetic light-emitting sensor and guide wheel positioning, the problems of slow detection speed and construction disturbance were solved, achieving rapid and accurate detection, meeting construction process requirements, and improving construction efficiency.

CN224578570UActive Publication Date: 2026-07-31CHINA RAILWAY SECOND BUREAU GROUP (XI AN) ENGINEERING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA RAILWAY SECOND BUREAU GROUP (XI AN) ENGINEERING CO LTD
Filing Date
2025-02-20
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

In existing technologies, the detection speed of the geometric dimensions of the guard rails of ballastless tracks is slow, which affects the concrete pouring time of the track bed. In addition, the detection process is prone to disturbing the track panels, making it difficult to meet the requirements of rapid detection and construction quality.

Method used

Design a tool for rapid detection of the geometric dimensions of ballastless track guard rails. It adopts a detection beam, a traveling device and a magnetic light-emitting sensor. The magnetic light-emitting sensor is used for nighttime detection, and the traveling wheel and guide wheel are used for positioning to quickly and accurately detect the geometric dimensions of the guard rails.

Benefits of technology

It enables rapid and accurate detection of the geometric dimensions of the guard rails, reduces manual inspection, avoids disturbance to the rail section, meets construction process requirements, saves time for concrete pouring of the track bed, and improves construction efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a rapid detection tool for the geometric dimensions of ballastless track guard rails. The tool includes a detection beam, a traveling device, a detection sensing device, and a handle. The two ends of the detection beam are connected to the traveling device. The traveling device consists of traveling wheels and guide wheels. The traveling wheels are connected to the steel plates at both ends of the detection beam by bolts, and the guide wheels are connected and fixed to the detection beam by bolts. The detection sensing device consists of magnetic light-emitting lamps above and to the side of the guard rail tread. The side magnetic light-emitting lamps are attached to an L-shaped steel beam, which is welded to the bottom of the detection beam. A handle is installed in the middle of the detection beam. This utility model solves the problem of rapidly detecting the geometric dimensions of guard rails after the basic track panel has been finely adjusted during the construction of ballastless track guard rail beds, ensuring that the basic track panel is not affected by interference. The detection tool is simple to manufacture, accurate, efficient, and easy to operate, effectively saving time, meeting construction process requirements, and ensuring the construction quality of ballastless track beds.
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Description

Technical Field

[0001] This utility model belongs to the field of railway construction equipment, specifically relating to a rapid detection tool for the geometric dimensions of ballastless track guard rails. Background Technology

[0002] China's high-speed rail network has basically completed the construction of the "eight vertical and eight horizontal" lines, with railway lines crisscrossing the tracks. A new type of ballastless track bed with guard wheel rails is used on overpasses. Guard wheel sleepers and basic sleepers are simultaneously cast-in-place and embedded in the track bed, forming an integral whole with the basic track panels and guard wheel rail panels. How to quickly detect the geometric dimensions of the guard wheel rail panels after the basic track panels have been fine-tuned is particularly critical, as it affects the concrete pouring time of the track bed. Moreover, the time from the completion of the track panel fine-tuning to the concrete pouring should not exceed 12 hours. To solve these problems, meeting the process requirements is of paramount importance.

[0003] In summary, there is an urgent need for a rapid detection tool for the geometry of ballastless track guard rails to solve the problems existing in the current technology. Utility Model Content

[0004] The purpose of this invention is to address the above-mentioned problems by providing a method that enables rapid detection of the geometric dimensions of ballastless track guard rails, ensuring fast and accurate detection, meeting process requirements, and providing sufficient construction time for subsequent procedures.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] A rapid detection tool for the geometric dimensions of ballastless track guard rails includes a detection beam, a traveling device, a detection sensor, and a handle;

[0007] The detection beam is connected to the traveling device at both ends; the traveling device consists of traveling wheels and guide wheels. The traveling wheels are connected to the steel plates at both ends of the detection beam by bolts, and the guide wheels are connected and fixed to the detection beam by bolts; the detection sensing device consists of magnetic light-emitting sensors above and on the sides of the guard wheel rail tread. The side magnetic light-emitting sensors are attached to L-shaped steel, which is welded to the bottom of the detection beam; a handle mounting position is set in the middle of the detection beam;

[0008] The traveling device includes traveling wheels, guide wheels, traveling wheel connecting bolts, and guide wheel connecting bolts. The traveling wheels are bolted to the steel plates at both ends of the detection beam by the traveling wheel connecting bolts passing through the traveling wheels. The guide wheels are bolted to the detection beam by the guide wheel connecting bolts passing through the guide wheels and the bolts passing through the guide wheel bolt pre-drilled holes on the detection beam. A nut is set at the upper and lower positions of the transverse pre-drilled holes to bolt and fix the guide wheels to the detection beam.

[0009] As a preferred method, the detection beam is made of 40mm square tube, with a 5mm thick steel plate at each end of the square tube. The steel plate has the same size as the square tube and is welded to the detection beam.

[0010] Drill holes at the center of the steel plates at both ends of the crossbeam and insert nuts. The inner diameter of the nuts should match the connecting bolts of the traveling wheels. Weld the nuts to the steel plates. The outer side of the steel plates and the nuts should be on the same plane. The nuts on both ends of the steel plates should be at the same horizontal position.

[0011] As a preferred method, the length of the detection beam is in the range of 1440 to 1460 mm. The traveling wheels are bolted to the detection beam by traveling wheel bolts. By adjusting the traveling wheel bolts and adding or reducing the number of shims between the traveling wheels and the steel plates at both ends of the detection beam, the center distance between the two traveling wheels is controlled in the range of 1490 to 1510 mm.

[0012] As a preferred method, after the center distance between the two traveling wheels is controlled in place, holes are drilled at both ends of the detection beam to set the guide wheel bolt pre-reserved holes. After the guide wheels on both sides are assembled, the distance between the outer sides of the two guide wheels is controlled to be 1434mm.

[0013] As a preferred method, the distance between the top surface of the guide wheel or the most prominent position of the wheel edge and the bottom surface of the traveling wheel is 16mm, and the elevation is controlled by adjusting the guide wheel nuts on the upper and lower crossbeams.

[0014] As a preferred method, the L-shaped steel is positioned at the distance from the outer edge of the guide wheel to the outer side of the guard wheel rail, minus half of the allowable lateral deviation of the guard wheel rail, minus 10mm.

[0015] As a preferred method, the running wheels and guide wheels are made of plastic-coated bearings.

[0016] As a preferred method, a magnetic light sensor is installed at the top of the center of the rail tread and on the L-shaped steel at the design location of the guard wheel rail. The distance between the light sensor and the guard wheel rail is adjusted by adding thin steel sheets.

[0017] The light sensor lamp consists of a light sensor module that emits light when it comes into contact with metal.

[0018] As a preferred method, a handle connector is provided at the center of the detection beam. The handle connector is welded to the detection beam. The handle connector is semi-circular and has a connection hole.

[0019] The beneficial effects of this utility model are:

[0020] 1. This utility model provides a rapid detection tool for the geometric dimensions of ballastless track guard wheel rails. The tool is relatively simple to manufacture and requires no special material selection. Furthermore, it solves the problem of quickly detecting the geometric state of guard wheel rail panels after fine-tuning, reducing the need for conventional manual inspections, avoiding disturbance to the rail panels, saving time for concrete pouring, meeting process requirements, and ensuring construction quality.

[0021] 2. This utility model is not limited to the detection of the geometric dimensions of the guard rails of ballastless track. It can also be used to detect the geometric dimensions of another rail based on the basic rail, and can also be used for the rapid detection of the geometric dimensions of turnouts, etc., to meet different needs and have good economic and social benefits. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the usage state of this utility model;

[0023] Figure 2 To inspect the front view of the beam;

[0024] Figure 3 To inspect the side view of the beam;

[0025] Figure 4 A top view for inspecting the beam;

[0026] Figure 5 This is the front view of the L-shaped steel section;

[0027] Figure 6 This is a side view of an L-shaped steel section.

[0028] Figure 7 This is a schematic diagram of the handle structure;

[0029] In the diagram, 1-basic rail, 2-guard wheel rail, 3-inspection beam, 4-traveling wheel, 5-guide wheel, 6-traveling wheel connecting bolt, 7-guide wheel connecting bolt, 8-L-shaped steel, 9-magnetic induction lamp, 10-guard wheel sleeper, 11-handle connector, 12-connecting steel plate, 13-handle, 14-double-block sleeper, 15-ballastless track bed concrete. Detailed Implementation

[0030] The technical solution of this utility model is described in further detail below with reference to the accompanying drawings, but the scope of protection of this utility model is not limited to the following description.

[0031] In the description of the embodiments of this utility model, it should be noted that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use, or the orientation or positional relationship that is commonly understood by those skilled in the art, or the orientation or positional relationship that the utility model product is usually placed in during use. It is only for the convenience of describing this utility model and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.

[0032] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that 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.

[0033] Example 1

[0034] like Figures 1 to 7 As shown, a tool for rapid detection of the geometric dimensions of a ballastless track guard wheel rail 2 includes a detection beam 3, a traveling device, a detection sensor 9, and a handle 13;

[0035] The detection beam 3 is connected to the walking device at both ends; the walking device mainly consists of walking wheels 4 and guide wheels 5. The walking wheels 4 are connected to the steel plates 12 at both ends of the detection beam 3 by bolts 6, and the guide wheels 5 are connected and fixed to the detection beam 3 by bolts 7; the detection sensing device 9 consists of magnetic light-emitting lamps 9 above and on the side of the guard wheel rail 2. The magnetic light-emitting lamps 9 on the side are attached to the L-shaped steel 8, and the L-shaped steel 8 is welded to the bottom of the detection beam 3; a handle 13 is installed in the middle of the detection beam 3;

[0036] In detail, the walking device includes a walking wheel 4, a guide wheel 5, a walking wheel connecting bolt 6, and a guide wheel connecting bolt 7. The walking wheel 4 is bolted and fixed to the nuts on the steel plates 12 at both ends of the detection beam 3 by the walking wheel connecting bolt 6 passing through the walking wheel 4. The guide wheel 5 is bolted and fixed to the detection beam 3 by the guide wheel connecting bolt 7 passing through the guide wheel 5 and the bolt 7 passing through the reserved hole of the guide wheel bolt 7 in the detection beam 3. A nut is set at the upper and lower positions of the reserved hole in the transverse direction to bolt and fix it to the detection beam 3.

[0037] The detection beam 3 is made of 40mm square tube, and a 5mm thick steel plate 12 is set at each end of the square tube. The steel plate is the same size as the square tube and is welded to the detection beam 3.

[0038] Drill holes at the center of the steel plates at both ends of the crossbeam 3 and embed nuts. The inner diameter of the nuts is matched with the connecting bolts 6 of the traveling wheel. The nuts are welded to the steel plate 12. The outer side of the steel plate 12 is on the same plane as the nuts. The nuts on both ends of the steel plate 12 are at the same horizontal position.

[0039] The length of the detection beam 3 is in the range of 1440 to 1460 mm. The traveling wheels 4 are bolted to the detection beam through the traveling wheel bolts 6. By adjusting the traveling wheel bolts and adding or reducing the number of shims between the traveling wheels and the steel plates at both ends of the detection beam, the center distance between the two traveling wheels is controlled in the range of 1490 to 1510 mm.

[0040] After the center distance between the two traveling wheels 4 is controlled in place, holes are drilled at both ends of the inspection beam 3 to set the pre-reserved holes for guide wheel bolts 7. After the guide wheels 5 on both sides are assembled, the outer distance between the two guide wheels 5 is controlled to be 1434mm.

[0041] The distance between the top surface or the most protruding position of the guide wheel 5 and the bottom surface of the traveling wheel 5 is 16mm. The elevation control is adjusted by detecting the nuts of the upper and lower guide wheels 5 on the crossbeam 3.

[0042] The L-shaped steel 8 is positioned at the distance from the outer edge of the guide wheel 5 to the outer side of the guard wheel rail 2 minus 1 / 2 of the allowable lateral deviation of the guard wheel rail 2 minus 10mm.

[0043] The traveling wheel 4 and guide wheel 5 are plastic-coated bearings;

[0044] A magnetic light sensor 9 is installed at the top of the center of the rail tread and on the L-shaped steel 8 at the design location of the guard rail 2. The distance between the light sensor 9 and the guard rail 2 is adjusted by adding thin steel sheets.

[0045] The light-sensing lamp 9 consists of a light-sensing module that emits light upon contact with metal.

[0046] A handle connector 11 is installed at the center of the detection beam 3. The handle connector 11 is welded to the detection beam 3. The handle connector 11 is semi-circular and has a connection hole.

[0047] This invention fully utilizes the principle that track panel fine-tuning is generally carried out at night when the temperature is stable, and the flashing of its lights is more obvious at night. The traveling wheels 4 move on the finely tuned basic track panel, and the guide wheels 5 are used for positioning control. Since the control accuracy of the guard wheel rail 2 is lower than that of the basic track panel, the magnetic induction light 9 is set at the design position of the guard wheel rail panel plus the allowable error minus 2mm, with the basic rail 1 as the reference point. The detection device is pushed outside the range of the track bed 15 by the handle 13 without disturbing the track panel. As long as the set allowable error is exceeded, the magnetic induction light 9 will contact the rail and light up. During the construction process, the position of exceeding the limit can be found in time and adjusted in time, saving the construction time and improving efficiency.

[0048] Example 2

[0049] The difference between this embodiment and Embodiment 1 is that: the magnetic induction lights 9 above and to the side of the guard rail 2 use different colored induction lights 9, which can more accurately distinguish between elevation and direction issues and make adjustments more quickly; the reserved holes of the guide wheels 5 on the detection beam 3 are designed as U-shaped elliptical holes, which can better adapt to the influence of changes in rail gauge; the handle 13 is removed, and during the fine adjustment of the basic rail panel, the measuring personnel can simultaneously push the detection tool to detect the dimensions of the guard rail and make adjustments synchronously.

[0050] The detection sensing device 9 is the focus of this utility model. Unlike previous methods of detecting oversized dimensions in subways and other applications that used hard materials such as metal, this device takes into full account the need to avoid damaging the material of the rails during dimensional inspections. Combining the positional relationship between the guard rails and the main rails, it employs four magnetically attracted light-emitting induction lamps 9 to form the detection sensing device, utilizing the principle of light emission upon contact with metal for rapid detection. Figures 1-7 As shown, its structural dimensions are those of a special rapid inspection tool for ballastless track guard rails. Unless otherwise specified, all dimensions in the figure are in mm.

[0051] The specific dimensions are as follows:

[0052] The detection beam is a 40mm rectangular square tube with a length of 1445mm;

[0053] The running wheels are plastic-coated bearings with an outer diameter of 63mm;

[0054] The guide wheel is a plastic-coated bearing with an outer diameter of 40mm;

[0055] The L-shaped steel has a dimension of 100mm. 100mm 5mm.

[0056] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that 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 tool for rapid detection of the geometry of a ballastless track guard rail, characterized in that it comprises: This includes a detection beam, a walking mechanism, detection sensors, and handles; The two ends of the detection beam are connected to the walking device; The walking device consists of walking wheels and guide wheels. The walking wheels are connected to the steel plates at both ends of the detection beam by bolts, and the guide wheels are connected and fixed to the detection beam by bolts. The detection sensing device consists of magnetic light-emitting lamps above and on the sides of the guard wheel rail tread. The side magnetic light-emitting lamps are attached to L-shaped steel, which is welded to the bottom of the detection beam. A handle installation position is set in the middle of the detection beam. The traveling device includes traveling wheels, guide wheels, traveling wheel connecting bolts, and guide wheel connecting bolts. The traveling wheels are bolted to the steel plates at both ends of the detection beam by the traveling wheel connecting bolts passing through the traveling wheels. The guide wheels are bolted to the detection beam by the guide wheel connecting bolts passing through the guide wheels and the bolts passing through the guide wheel bolt pre-drilled holes on the detection beam. A nut is set at the upper and lower positions of the pre-drilled holes on the beam to bolt and fix the guide wheels to the detection beam.

2. The tool for quickly detecting the geometry of the wheel guard rail of the ballastless track according to claim 1, characterized in that: The detection beam is made of 40mm square tubing, with a 5mm thick steel plate at each end of the square tubing. The steel plate is the same size as the square tubing and is welded to the detection beam. Drill holes at the center of the steel plates at both ends of the crossbeam and insert nuts. The inner diameter of the nuts should match the connecting bolts of the traveling wheels. Weld the nuts to the steel plates. The outer side of the steel plates and the nuts should be on the same plane. The nuts on both ends of the steel plates should be at the same horizontal position.

3. The tool for quickly detecting the geometry of the bull rail of a ballastless track according to claim 1 or 2, characterized in that: The length of the detection beam is in the range of 1440 to 1460 mm. The traveling wheels are bolted to the detection beam by traveling wheel bolts. By adjusting the traveling wheel bolts and adding or reducing the number of shims between the traveling wheels and the steel plates at both ends of the detection beam, the center distance between the two traveling wheels is controlled in the range of 1490 to 1510 mm.

4. The tool for quickly detecting geometric dimensions of a ballastless track guard wheel rail according to claim 3, characterized in that: After the center distance between the two traveling wheels is controlled in place, holes are drilled at both ends of the inspection beam to set the guide wheel bolt pre-reserved holes. After the guide wheels on both sides are assembled, the outer distance between the two guide wheels is controlled to be 1434mm.

5. The tool for quickly detecting the geometry of the wheel guard rail of the ballastless track according to claim 4, characterized in that: The distance between the top surface of the guide wheel or the most prominent position of the wheel edge and the bottom surface of the traveling wheel is 16mm. The elevation is controlled by adjusting the guide wheel nuts on the upper and lower parts of the crossbeam.

6. The rapid detection tool for the geometric dimensions of ballastless track guard wheel rails according to claim 1, characterized in that: The L-shaped steel is positioned at the distance from the outer edge of the guide wheel to the outer side of the guard wheel rail, minus half of the allowable lateral deviation of the guard wheel rail, minus 10mm.

7. The tool for quickly detecting the geometry of the wheel guard rail of the ballastless track according to claim 1, characterized in that: The running wheels and guide wheels are made of plastic-coated bearings.

8. The tool for quickly detecting the geometry of the wheel guard rail of the ballastless track according to claim 1, characterized in that: A magnetic light sensor is installed at the top of the center of the rail tread and on the L-shaped steel at the design location of the guard wheel rail. The distance between the light sensor and the guard wheel rail is adjusted by adding a thin steel sheet. The light sensor lamp consists of a light sensor module that emits light when it comes into contact with metal.

9. The tool for quickly detecting the geometry of the wheel guard rail of the ballastless track according to claim 1, characterized in that: A handle connector is installed at the center of the detection beam. The handle connector is welded to the detection beam. The handle connector is semi-circular and has a connection hole.