Movable rail displacement observation pile
The mobile rail displacement monitoring pile is positioned using an adjustable mounting base and positioning pins, which solves the detection difficulties of traditional detection devices in railway stations and turnout areas, and realizes high-precision and high-frequency rail displacement detection, avoiding encroachment on the track and accumulation of errors.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Filing Date
- 2025-09-03
- Publication Date
- 2026-07-07
AI Technical Summary
Existing detection methods cannot be used in railway stations and turnout areas, and traditional fixed observation stakes affect train operation and accumulate large measurement errors.
The mobile rail displacement monitoring pile, consisting of an adjustable mounting base and a movable monitoring pile, is used. The positioning pins ensure that the repeatability error is less than 0.5mm. Combined with a multi-directional height adjustment mechanism, it achieves real-time leveling and is suitable for high-frequency displacement detection in railway stations and turnout areas.
It achieves high-precision rail displacement detection without encroaching on track clearance, reduces cumulative errors, and is suitable for high-frequency displacement detection in railway stations and turnout areas.
Smart Images

Figure CN224465872U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of railway maintenance technology, specifically relating to a mobile rail displacement monitoring pile. Background Technology
[0002] With the rapid development of railways, the displacement detection of rails has become crucial. Existing detection methods usually involve using dedicated fixed displacement observation piles or contact wire posts, then adding markers to the rails, and using a track trolley to photograph the observation piles and markers to calculate the displacement.
[0003] However, due to the dense rails in the station and turnout areas, it is impossible to install dedicated fixed observation piles between the rails, and the distance between the contact wire posts is too far to meet the camera depth of field requirements. Therefore, the existing observation methods cannot be used. Utility Model Content
[0004] To address the problems mentioned in the background art, this utility model provides a mobile rail displacement observation pile to solve the problems of traditional fixed observation piles affecting the normal operation of trains, being immovable, and encroaching on track clearance, as well as the problem of cumulative measurement errors caused by repeated installation if detachable observation piles are used.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] Mobile rail displacement monitoring piles include:
[0007] Observation pile foundation; The observation pile foundation is fixedly installed on the ground on one side of the track, and the top surface of the observation pile foundation is set below the horizontal plane where the top surface of the track is located;
[0008] Adjustable mounting base; The adjustable mounting base is set on the top surface of the observation pile foundation. The adjustable mounting base includes a plate and a multi-directional height adjustment mechanism. The multi-directional height adjustment mechanism is used to adjust the height and inclination of the plate. The top surface of the plate is provided with at least two positioning pins.
[0009] The movable observation stake includes an observation stake base and an observation stake body vertically mounted on the observation stake base. The observation stake base has at least two positioning holes, and the top of the observation stake body has an observation mark. The observation stake base can be detachably installed on an adjustable mounting base by inserting a positioning pin into a positioning hole.
[0010] Preferably, the observation pile foundation is a cement pier, and the top surface of the cement pier is a plane.
[0011] Preferably, the multi-directional height adjustment mechanism includes at least three anchor bolts and at least three pairs of adjusting nuts. The anchor bolts are vertically arranged, and the hook ends of the anchor bolts are fixedly set inside the top surface of the concrete block. A pair of adjusting nuts are threaded onto an anchor bolt. The plate of the adjustable mounting base is provided with at least three through holes, and an anchor bolt passes through one through hole. The plate of the adjustable mounting base is set between the two adjusting nuts of each pair.
[0012] Preferably, the observation mark at the top of the observation pile body is a reference QR code track marker.
[0013] Preferably, the mobile rail displacement monitoring pile also includes a protective cover, which is connected to the cement block via a hinge. When the protective cover is fastened to the top surface of the cement block, it covers the adjustable mounting base.
[0014] Preferably, the protective cover is provided with a handle for the operator to lift.
[0015] Preferably, the adjustable mounting base is made of metal.
[0016] Preferably, the movable observation stake is made of aluminum alloy.
[0017] Compared with the prior art, the beneficial effects of this utility model are:
[0018] This utility model provides a mobile rail displacement monitoring pile that balances measurement accuracy and track passability. It employs a positioning pin to achieve a repeatability error of ≤0.5mm. A multi-directional height adjustment mechanism allows for real-time leveling of the adjustable mounting base. In actual use, simply align the positioning hole on the mobile monitoring pile with the positioning pin and insert it for installation. After testing, remove the detachable monitoring pile to complete the testing of one point. This application allows for repeated disassembly and assembly, achieving rail displacement detection without encroaching on track clearance or affecting normal track operation. It effectively solves the problems of traditional detection devices encroaching on track space and accumulating large errors, and is suitable for high-frequency displacement detection scenarios in railway stations and turnout areas. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the specific structure of this application;
[0020] Figure 2 This is a schematic diagram of the internal structure of the adjustable mounting base;
[0021] The diagram is marked as follows:
[0022] 1-Cement block; 2-Anchor bolt; 3-Plate; 4-Positioning pin; 5-Adjusting nut; 6-Positioning hole; 7-Observation pile base; 8-Observation pile body; 9-Benchmark QR code track marker; 10-Handle; 11-Protective cover; 12-Hinge. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] Example 1
[0025] Mobile rail displacement monitoring piles, such as Figure 1 , Figure 2 As shown, it includes:
[0026] The observation piles are fixedly installed on the ground on one side of the track.
[0027] Adjustable mounting base; The adjustable mounting base is set on the top surface of the observation pile foundation. The adjustable mounting base includes a plate 3 and a multi-directional height adjustment mechanism. The multi-directional height adjustment mechanism is used to adjust the height and inclination of the plate 3. The top surface of the plate 3 is provided with three positioning pins 4, which are arranged in a ring array.
[0028] The movable observation stake includes an observation stake base 7 and an observation stake body 8 vertically mounted on the observation stake base 7. The observation stake base 7 is provided with three positioning holes 6, and the top of the observation stake body 8 is provided with an observation mark. The observation stake base 7 can be detachably installed on the adjustable mounting base by inserting a positioning pin 4 into a positioning hole 6.
[0029] In this embodiment, the present invention provides a mobile rail displacement monitoring pile that balances measurement accuracy and track passability. It uses positioning pins 4 for positioning to achieve a repeatability error of ≤0.5mm. A multi-directional height adjustment mechanism allows the adjustable mounting base plate 3 to be leveled in real time. In actual use, simply align the positioning hole 6 on the mobile monitoring pile with the positioning pin 4 and insert it for installation. After the test is completed, remove the detachable monitoring pile to complete the test of one point. This application allows for repeated disassembly and assembly, achieving rail displacement detection without encroaching on track clearance or affecting normal track operation. It effectively solves the problems of traditional detection devices encroaching on track space and accumulating large errors, and is suitable for high-frequency displacement detection scenarios in railway stations and turnout areas.
[0030] Example 2
[0031] The difference between this embodiment and Embodiment 1 is that, as Figure 1 , Figure 2 As shown, the pile foundation being observed is cement pier 1, and the top surface of cement pier 1 is a plane.
[0032] In this embodiment, the bottom of the cement block 1 is pre-embedded at a position of about 1.5-3.5 meters next to the track, and the top surface of the cement block 1 is lower than the horizontal plane of the top surface of the track.
[0033] Example 3
[0034] The difference between this embodiment and Embodiment 2 is that, as Figure 1 , Figure 2 As shown, the multi-directional height adjustment mechanism includes four anchor bolts 2 and four pairs of adjusting nuts 5. The anchor bolts 2 are vertically arranged, and the hook ends of the anchor bolts 2 are fixedly installed inside the top surface of the cement block 1. A pair of adjusting nuts 5 are threaded onto an anchor bolt 2. Each of the four corners of the adjustable mounting base plate 3 is provided with a through hole, and an anchor bolt 2 is set through a through hole. The adjustable mounting base plate 3 is set between the two adjusting nuts 5 in each pair.
[0035] In this embodiment, the anchor bolt 2 is an M12. During initial installation, the mounting plate 3 can be leveled using a level, and then fixed by tightening the adjusting nut 5. In subsequent use, if the adjusting nut 5 becomes loose due to vibration when a train passes, it can be leveled again using a level and then tightened. The cement block 1 cannot be guaranteed to be absolutely vertical during installation. This application can adapt to some slightly inclined terrains using a multi-directional height adjustment mechanism. Moreover, the installation position of the cement block 1 may vary in height depending on the road conditions. The multi-directional height adjustment mechanism can adjust the inclination and height of the movable observation pile, increasing the versatility of this application for road sections.
[0036] Example 3
[0037] The difference between this embodiment and Embodiment 1 is that, as Figure 1 As shown, the observation mark at the top of the main body 8 of the observation pile is the reference QR code track marker 9. The QR code content includes various detection information and location information of the point, which is convenient for subsequent identification and statistics.
[0038] Example 4
[0039] The difference between this embodiment and Embodiment 2 is that, as Figure 1 , Figure 2 As shown, the mobile rail displacement monitoring pile also includes a protective cover 11, which is connected to the cement block 1 via a hinge 12. When the protective cover 11 is fastened to the top surface of the cement block 1, the protective cover 11 covers the adjustable mounting base. The protective cover 11 is also located below the horizontal plane where the top surface of the rail is located.
[0040] Example 5
[0041] The difference between this embodiment and embodiment 4 is that, as Figure 1 , Figure 2 As shown, the protective cover 11 is provided with a handle 10 for the operator to lift.
[0042] In this embodiment, when testing, first lift the handle 10 to open the protective cover 11 at the testing point, then align the positioning hole 6 on the movable observation pile with the positioning pin 4 and install it. After the testing is completed, remove the movable observation pile and cover it with the protective cover 11 to complete the testing of one point.
[0043] Example 6
[0044] The difference between this embodiment and Embodiment 1 is that the plate 3 of the adjustable mounting base is made of metal.
[0045] Example 7
[0046] The difference between this embodiment and Embodiment 1 is that the movable observation pile is made of aluminum alloy.
[0047] In this embodiment, the lightweight aluminum alloy movable observation stake can be carried by a single person, which reduces weight while maintaining strength and improving detection efficiency.
[0048] Those skilled in the art will recognize that the embodiments described herein are intended to help the reader understand the principles of this application, and should be understood as not limiting the scope of protection of this application to such specific statements and embodiments. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.
Claims
1. A mobile rail displacement monitoring pile, characterized in that, include: Observe the pile foundation; The observation piles are fixedly installed on the ground on one side of the track, with the top surface of the observation piles set below the horizontal plane where the top surface of the track is located; Adjustable mounting base; The adjustable mounting base is set on the top surface of the observation pile foundation. The adjustable mounting base includes a plate (3) and a multi-directional height adjustment mechanism. The multi-directional height adjustment mechanism is used to adjust the height and inclination of the plate (3). The top surface of the plate (3) is provided with at least two positioning pins (4). The movable observation pile includes an observation pile base (7) and an observation pile body (8) vertically set on the observation pile base (7). The observation pile base (7) is provided with at least two positioning holes (6). The top of the observation pile body (8) is provided with an observation mark. The observation pile base (7) is detachably installed on the adjustable mounting base by inserting a positioning pin (4) into a positioning hole (6).
2. The mobile rail displacement monitoring pile according to claim 1, characterized in that, The pile foundation is a cement pier (1), and the top surface of the cement pier (1) is a plane.
3. The mobile rail displacement monitoring pile according to claim 2, characterized in that, The multi-directional height adjustment mechanism includes at least three anchor bolts (2) and at least three pairs of adjusting nuts (5). The anchor bolts (2) are set vertically, and the hook end of the anchor bolt (2) is fixedly set inside the top surface of the cement block (1). A pair of adjusting nuts (5) are threaded onto an anchor bolt (2). The plate (3) of the adjustable mounting seat is provided with at least three through holes. An anchor bolt (2) passes through one through hole. The plate (3) of the adjustable mounting seat is set between the two adjusting nuts (5) of each pair.
4. The mobile rail displacement monitoring pile according to claim 1, characterized in that, The observation mark at the top of the main body of the observation pile (8) is the reference QR code track marker (9).
5. The mobile rail displacement monitoring pile according to claim 2, characterized in that, The mobile rail displacement monitoring pile also includes a protective cover (11), which is connected to the cement block (1) via a hinge (12). When the protective cover (11) is fastened to the top surface of the cement block (1), the protective cover (11) covers the adjustable mounting base.
6. The mobile rail displacement monitoring pile according to claim 5, characterized in that, The protective cover (11) is provided with a handle (10) for the operator to lift.
7. The mobile rail displacement monitoring pile according to claim 1, characterized in that, The adjustable mounting base plate (3) is made of metal.
8. The mobile rail displacement monitoring pile according to claim 1, characterized in that, The movable observation stake is made of aluminum alloy.