Portable railway clearance detection and calibration device
By using a portable railway clearance detection device in conjunction with a lidar and calibration block, the problem of slow clearance detection speed in existing technologies has been solved, achieving fast, accurate clearance detection and portability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-01
- Publication Date
- 2026-03-24
AI Technical Summary
The existing railway clearance detection technology has a slow feedback rate, which affects the detection efficiency.
A portable railway clearance detection device is adopted, which uses lidar in conjunction with a calibration block to directly obtain clearance information by measuring the distance between the calibration block and the rail. The device also incorporates a bubble level and a detachable design to improve detection speed and portability.
It enables rapid calibration and testing of railway clearance. The device is detachable and portable, improving testing efficiency and accuracy.
Smart Images

Figure CN224035631U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of limit detection calibration, in particular to a portable railway limit detection calibration device. BACKGROUND
[0002] With the rapid development of railway, has experienced multiple speed, for the railway operation safety also put forward higher requirements. Must have a safety space in the railway operation process, the space is called railway limit, when the train exceeds normal space travel, called overrun, at this moment, it is extremely possible to cause serious accident, therefore, the detection of railway safety limit is very important.
[0003] At present, the existing detection technology of railway limit usually carries three-dimensional laser scanner on the track trolley and manually pushes, obtains distance information through laser scanning, carries out complicated algorithm operation in the background to obtain the limit distance of the point, and then judges whether the point exists limit violation. Although this limit detection calibration method has high precision, the feedback result is slow during detection, which affects the efficiency. UTILITY MODEL CONTENT
[0004] In view of the defects of the prior art, the utility model aims at providing a portable railway limit detection calibration device to solve the problem of slow limit detection feedback result in the background.
[0005] To achieve the above object, the utility model provides the following technical scheme: a portable railway limit detection calibration device, including a vertical ruler arranged above the steel rail, further including a laser radar, the top of the vertical ruler is provided with a calibration block, one side of the bottom of the vertical ruler is provided with a level, and the level is located below the calibration block, and the vertical ruler and the level are connected through a connecting piece;
[0006] The top surface of the level is detachably connected with a bubble level, one end of the level away from the connecting piece is provided with a clamping body, one side of the clamping body is inserted with a fastening structure, and the clamping body is clamped on both sides of the steel rail.
[0007] As preferred, the front side of the calibration block is glued with a radar wave reflection block, which is made of any one of aluminum, copper and stainless steel.
[0008] As preferred, one side of the clamping body away from the fastening structure is provided with a fixed angle iron, and the fixed angle iron is detachably connected between the level.
[0009] As preferred, the clamping body is arranged in a [type, and an inner groove is formed in the inner wall of the side of the clamping body away from the level.
[0010] As preferred, the fastening structure includes a threaded nail inserted on the clamping body, and one end of the threaded nail is provided with a pressing plate matched with the inner groove.
[0011] Preferably, one end of the threaded peg is provided with a T-shaped column, and the T-shaped column is rotatably inserted into the inside of the pressing plate.
[0012] Preferably, the pressing plate is arranged in a rectangular shape, and a rubber layer is arranged on the end of the pressing plate away from the threaded peg.
[0013] Compared with the prior art, the utility model has the beneficial effects that:
[0014] 1. The railway clearance detection calibration device, the distance between the calibration block and the steel rail is fixed, the radar scans the distance between the calibration block, and the distance can be directly obtained, and whether the point exists out of limit can be judged by simple calculation.
[0015] 2. The railway clearance detection calibration device is detachable, and has the characteristics of light overall weight and portability. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0017] Figure 2 It is a schematic diagram of the top plan structure of the utility model;
[0018] Figure 3 It is a schematic diagram of the side structure of the utility model;
[0019] Figure 4 It is a schematic diagram of the installation structure of the clamping body and the fastening structure of the utility model;
[0020] Figure 5 It is a schematic diagram of the fastening structure of the utility model.
[0021] In the drawing: 1, calibration block; 101, radar wave reflection block; 2, vertical ruler; 3, connecting piece; 4, horizontal ruler; 5, bubble level; 6, clamping body; 601, inner groove; 7, fastening structure; 701, threaded peg; 702, pressing plate; 703, T-shaped column; 8, laser radar; 9, steel rail. DETAILED DESCRIPTION
[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0023] Please refer to Figures 1-5 The utility model provides a portable railway clearance detection calibration device, which comprises a calibration block 1 and a laser radar 8. The radar wave reflection block 101 is glued to the front side of the calibration block 1. The radar wave reflection block 101 is made of any one of aluminum, copper and stainless steel. Aluminum, copper and stainless steel have good reflection performance on radar waves. By adding the metal material on the calibration block 1, the reflection of radar waves can be significantly increased, thereby improving the accuracy of detection of the laser radar 8 and facilitating accurate detection of the position of the calibration block 1. The bottom of one side of the calibration block 1 is provided with a vertical ruler 2. One side of the bottom of the vertical ruler 2 is provided with a horizontal ruler 4. The vertical ruler 2 and the horizontal ruler 4 are connected through a connecting piece 3. The top surface of the horizontal ruler 4 is detachably connected with a bubble level 5. One end of the horizontal ruler 4 away from the connecting piece 3 is provided with a clamping body 6. One side of the clamping body 6 is provided with a fastening structure 7. The clamping body 6 is clamped on both sides of the steel rail 9. The horizontal ruler 4 and the bubble level 5 are leveling mechanisms of the device. The bubble level 5 helps to determine whether the whole composed of the clamping body 6 and the horizontal ruler 4 is in a horizontal state after being clamped on the steel rail 9. The bubble level 5 comprises a transparent tube filled with liquid and a small bubble in the tube. The bubble moves to the highest point of the tube, thereby indicating whether the object is horizontal. When the horizontal ruler 4 is horizontal, the bubble in the bubble level 5 stays in the center of the tube. If the object is inclined, the bubble deviates from the center, thereby showing the angle of inclination, so that the user can conveniently judge the small angle deviation between the horizontal ruler 4 and the horizontal line, thereby facilitating accurate adjustment.
[0024] The laser radar 8 is installed on a clearance detection trolley. The laser radar 8 is used in cooperation with the calibration block 1 with the radar wave reflection block 101, so that the position clearance of the point can be quickly calibrated.
[0025] Specifically, the side of the clamping body 6 away from the fastening structure 7 is provided with a fixed angle iron. The fixed angle iron is detachably connected between the clamping body 6 and the horizontal ruler 4. In addition, the connecting piece 3, the vertical ruler 2 and the horizontal ruler 4 are also detachably combined by screws, thereby facilitating overall disassembly and carrying.
[0026] As shown in Figure 3 and Figure 4 , the clamping body 6 is arranged in a [ shape. The depth of the clamping body 6 is adapted to the height of the steel rail 9.
[0027] As shown in Figure 4 and Figure 5As shown, the inner recess 601 is arranged in the inner wall of the clamping body 6 away from the level 4, the fastening structure 7 comprises a threaded nail 701 inserted in the clamping body 6, one end of the threaded nail 701 is provided with a pressing plate 702 matched with the inner recess 601, one end of the threaded nail 701 is provided with a T-shaped column 703, and the T-shaped column 703 is rotatably inserted in the inner part of the pressing plate 702, the pressing plate 702 is arranged in a rectangular shape, and the end of the pressing plate 702 away from the threaded nail 701 is provided with a rubber layer. By rotating the threaded nail 701, the T-shaped column 703 can be correspondingly driven to rotate along the inner part of the pressing plate 702, and when the one end of the threaded nail 701 gradually moves along the clamping body 6 towards the side of the level 4, a pushing force can be generated on the pressing plate 702, so as to firmly press the pressing plate 702 against the side of the rail 9, and cooperate with the other side wall of the clamping body 6 to clamp the rail 9 on both sides. The application of the pressing plate 702 enlarges the area of the end of the threaded nail 701, thereby improving the area of the force on the side of the rail 9.
[0028] It should be noted that the terms "comprising", "containing", or any other variant thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not only include those elements, but also other elements not expressly listed, or other elements inherent to such a process, method, article, or apparatus.
[0029] Although the embodiments of the present application have been shown and described, it is understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. A portable railway clearance detection and calibration device, comprising a vertical ruler (2) disposed above the rail (9), characterized in that: It also includes a lidar (8), a calibration block (1) is installed on the top of the vertical ruler (2), a horizontal ruler (4) is provided on one side of the bottom of the vertical ruler (2), and the horizontal ruler (4) is located below the calibration block (1). The vertical ruler (2) and the horizontal ruler (4) are connected by a connector (3). The top surface of the level (4) is detachably connected to a bubble level (5). A clamping body (6) is installed at the end of the level (4) away from the connector (3). A fastening structure (7) is inserted into one side of the clamping body (6). The clamping body (6) is snapped onto both sides of the rail (9).
2. The portable railway clearance detection and calibration device according to claim 1, characterized in that: The calibration block (1) has a radar wave reflector block (101) glued to its front side, which is made of any one of aluminum, copper and stainless steel.
3. The portable railway clearance detection and calibration device according to claim 1, characterized in that: The clamping body (6) is provided with a fixed angle iron on the side away from the fastening structure (7), and the fixed angle iron is detachably connected to the level (4).
4. The portable railway clearance detection and calibration device according to claim 1, characterized in that: The clamping body (6) is arranged in a [ shape, and an inner groove (601) is provided on the inner wall of the side of the clamping body (6) away from the horizontal ruler (4).
5. The portable railway clearance detection and calibration device according to claim 1, characterized in that: The fastening structure (7) includes a threaded pin (701) inserted into the clamping body (6), and one end of the threaded pin (701) is provided with a pressure plate (702) that is adapted to the inner groove (601).
6. The portable railway clearance detection and calibration device according to claim 5, characterized in that: One end of the threaded nail (701) is fitted with a T-shaped post (703), and the T-shaped post (703) is rotatably inserted into the inside of the pressure plate (702).
7. A portable railway clearance detection and calibration device according to claim 6, characterized in that: The pressure plate (702) is arranged in a rectangular shape, and a rubber layer is provided at the end of the pressure plate (702) away from the threaded nail (701).