Novel railway guide rail nondestructive testing device
By combining the design of the frame and the detection mechanism, the electric push rod and connecting rod drive the detection plate to contact the guide rail surface. Combined with the electromagnetic ultrasonic sensor to detect cracks and pointer deviation, this design solves many problems in guide rail detection and improves detection efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI PUSUO CONSTRUCTION ENGINEERING CO LTD
- Filing Date
- 2025-06-16
- Publication Date
- 2026-04-21
AI Technical Summary
Existing technologies are insufficient to simultaneously and efficiently detect surface cracks or fissures in railway guide rails, as well as guide rail misalignment, which affects the safe operation of railway lines.
The system employs components such as a frame, detection mechanism, electric push rod, connecting rod, and electromagnetic ultrasonic sensor. The electric push rod drives the connecting rod and slider to move the detection plate to contact the guide rail surface. The electromagnetic ultrasonic sensor detects cracks, and the pointer displays the guide rail offset.
It enables convenient detection of cracks and misalignments on the surface of railway guide rails, improving the safety and detection efficiency of railway lines.
Smart Images

Figure CN224145949U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of non-destructive testing of railway guide rails, and in particular to a novel non-destructive testing device for railway guide rails. Background Technology
[0002] Railway guide rails, also known as track rails, are primarily used on railways and work in conjunction with switches to allow trains to move without turning. A railway guide rail typically consists of two parallel steel rails fixed to sleepers, beneath which lies the ballast. They are secured by railway accessories such as rail braces, fasteners, rail clamps, rail clamps, elastic clips, and railway spikes. To ensure the safe operation of railway lines, the National Railway Administration mandates regular non-destructive testing of railway guide rails.
[0003] Because trains travel at high speeds on railway tracks, minor misalignments may occur after prolonged operation, affecting the safe operation of the railway line. Therefore, designing a non-destructive testing device for railway tracks that can not only detect surface damage such as cracks or fissures but also conveniently detect track misalignments is of great significance.
[0004] In view of the above situation, a new type of non-destructive testing device for railway guide rails is proposed. Utility Model Content
[0005] To address the problems mentioned in the background section, this application provides a novel non-destructive testing device for railway guide rails.
[0006] This application provides a novel non-destructive testing device for railway guide rails, which adopts the following technical solution:
[0007] Optionally, a frame is included, with a detection mechanism disposed on the outer side of the frame;
[0008] The detection mechanism includes a slide, a slider, a protrusion, a connecting rod, an electric push rod, a connecting seat, an electromagnetic ultrasonic sensor, a scale, a detection plate, and a pointer;
[0009] The slide groove is formed inside the frame, the slider is slidably connected to the inside of the slide groove, the protrusion is fixedly connected to the top of the slider, one end of the connecting rod is rotatably connected to the protrusion, the electric push rod is fixedly installed on the outside of the frame, the connecting seat is fixedly connected to the output end of the electric push rod, the scale is set on the surface of the frame, the detection plate is fixedly connected to one side of the slider, the electromagnetic ultrasonic sensor is set on the surface of one of the detection plates, and the pointer is set on the top of the detection plate.
[0010] Optionally, a handrail is fixedly connected to the top of the frame, and rollers are movably provided at the bottom of the frame.
[0011] Optionally, the other end of the connecting rod is rotatably connected to the connecting seat, and the two connecting rods are staggered.
[0012] Optionally, the output end of the electric push rod in the energized state is used to drive the connecting seat to move, and the connecting seat in the moving state is used to drive the two connecting rods to move synchronously.
[0013] Optionally, the two connecting rods in motion drive the two sliders to move synchronously.
[0014] Optionally, the two sliders in the moving state respectively drive the two detection plates to perform synchronous displacement.
[0015] Optionally, the electromagnetic ultrasonic sensor in the powered state is used to detect whether there are cracks on the surface of the railway guide rail.
[0016] In summary, this application includes the following beneficial technical effects:
[0017] This invention utilizes a detection mechanism. Through the cooperation between the electric push rod component and the connecting rod component, the connecting rod component drives the detection plate to move via a slider. The two detection plates, in a close-moving state, then contact the two sides of the surface of the railway guide rail to be tested. Two pointers point to the scale values set on two sets of scale surfaces, thus indicating the positions of the two detection plates. When the two sets of values are unequal and there is a difference, it indicates that the railway guide rail has shifted, thereby facilitating the detection of railway guide rail shifts. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure in an embodiment of this application;
[0019] Figure 2 This is a side view of the structure in an embodiment of this application;
[0020] Figure 3 This is an embodiment of the present application. Figure 2 A schematic diagram of the structure of A in the diagram;
[0021] Figure 4 This is a schematic diagram of the structure of the testing mechanism in the embodiments of this application;
[0022] Figure 5 This is a schematic diagram of the testing mechanism from another perspective in the embodiments of this application.
[0023] Reference numerals: 1. Frame; 2. Handrail; 3. Roller; 4. Detection mechanism; 401. Slide groove; 402. Slider; 403. Protrusion; 404. Connecting rod; 405. Electric push rod; 406. Connecting seat; 407. Electromagnetic ultrasonic sensor; 408. Scale; 409. Detection plate; 4010. Pointer. Detailed Implementation
[0024] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.
[0025] This application discloses a novel non-destructive testing device for railway guide rails. For example... Figure 1 As shown, frame 1, and a detection mechanism 4 is provided on the outside of frame 1;
[0026] The detection mechanism 4 includes a slide 401, a slider 402, a protrusion 403, a connecting rod 404, an electric push rod 405, a connecting seat 406, an electromagnetic ultrasonic sensor 407, a scale 408, a detection plate 409, and a pointer 4010.
[0027] A groove 401 is formed inside the frame 1. A slider 402 is slidably connected inside the groove 401. A protrusion 403 is fixedly connected to the top of the slider 402. One end of a connecting rod 404 is rotatably connected to the protrusion 403. An electric push rod 405 is fixedly installed on the outside of the frame 1. A connecting seat 406 is fixedly connected to the output end of the electric push rod 405. A scale 408 is set on the surface of the frame 1. A detection plate 409 is fixedly connected to one side of the slider 402. An electromagnetic ultrasonic sensor 407 is set on the surface of a detection plate 409. A pointer 4010 is set on the top of the detection plate 409. The electric push rod 405 is operated by connecting it to electricity. The output end of the electric push rod 405 in operation drives the connecting seat 406 to move. The moving connecting seat 406 drives the two detection plates 409 that are close to each other in the moving state to contact the two sides of the surface of the railway guide rail to be tested. The two detection plates 409 in the moving state drive the two pointers 4010 to move, so that the two pointers 4010 point to the scale values set on the surface of the two sets of scales 408 respectively. Thus, the two sets of values represent the positions of the two detection plates 409. When the two sets of values are not equal and there is a difference, it indicates that the railway guide rail is offset, and the value of the offset on both sides of the railway guide rail can be displayed.
[0028] Please see Figure 2 The other end of the connecting rod 404 is rotatably connected to the connecting seat 406, and the two connecting rods 404 are staggered, so that the two connecting rods 404 in the synchronous running state are in a staggered motion state;
[0029] Please see Figure 3The top of the frame 1 is fixedly connected to a handrail 2, and the bottom of the frame 1 is movably equipped with a roller 3, so that a person can support the handrail 2 with their hands and move the frame 1 through the roller 3.
[0030] Please see Figure 2 The electromagnetic ultrasonic sensor 407 in the powered state is used to detect whether there are cracks on the surface of the railway guide rail. By setting the electromagnetic ultrasonic sensor 407, the electromagnetic ultrasonic sensor 407 in the powered state can detect whether there are cracks on the surface of the railway guide rail.
[0031] Please see Figure 4 The two connecting rods 404 in motion drive the two sliders 402 to move synchronously, so that the two connecting rods 404 in motion drive the two sliders 402 to move closer to each other along the inner wall trajectory of the slide groove 401. The connecting seat 406 in motion drives the two connecting rods 404 to move synchronously, so that the two connecting rods 404 in motion drive the two sliders 402 to move closer to each other along the inner wall trajectory of the slide groove 401.
[0032] Please see Figure 4 The two sliders 402 in the moving state drive the two detection plates 409 to move synchronously. The two sliders 402 in the moving state drive the two detection plates 409 to move synchronously closer to each other, so that the two detection plates 409 in the close-moving state come into contact with the two sides of the surface of the railway guide rail to be tested.
[0033] Please see Figure 4 The output end of the electric push rod 405 in the energized state is used to drive the connecting seat 406 to move, and the connecting seat 406 in the moving state is used to drive the two connecting rods 404 to move synchronously, so that the output end of the electric push rod 405 in the running state drives the connecting seat 406 to move, and the connecting seat 406 in the moving state drives the two connecting rods 404 to move synchronously.
[0034] The implementation principle of the novel non-destructive testing device for railway guide rails in this application embodiment is as follows: By connecting the electric push rod 405 to power, the output end of the electric push rod 405 in operation drives the connecting seat 406 to move. The moving connecting seat 406 drives the two connecting rods 404 to move synchronously. The two moving connecting rods 404 respectively drive the two sliders 402 to move closer together along the inner wall trajectory of the slide groove 401. The two moving sliders 402 respectively drive the two detection plates 409 to move synchronously closer together, so that the two detection plates 409 in the close-moving state... The two sides of the surface of the railway guide rail to be tested are in contact, and the two detection plates 409 in the moving state drive the two pointers 4010 to move, so that the two pointers 4010 point to the scale values set on the surface of the two sets of scales 408 respectively. Thus, the two sets of values represent the positions of the two detection plates 409. When the two sets of values are not equal and there is a difference, it indicates that the railway guide rail is offset, and the offset values on both sides of the railway guide rail can be displayed. In addition, by setting an electromagnetic ultrasonic sensor 407, the electromagnetic ultrasonic sensor 407 in the powered state can detect whether there are cracks on the surface of the railway guide rail.
[0035] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A new type of non-destructive testing device for railway guide rails, comprising a frame (1), characterized in that: A detection mechanism (4) is provided on the outside of the frame (1); The detection mechanism (4) includes a slide (401), a slider (402), a protrusion (403), a connecting rod (404), an electric push rod (405), a connecting seat (406), an electromagnetic ultrasonic sensor (407), a scale (408), a detection plate (409), and a pointer (4010). The groove (401) is opened inside the frame (1), the slider (402) is slidably connected to the inside of the groove (401), the protrusion (403) is fixedly connected to the top of the slider (402), one end of the connecting rod (404) is rotatably connected to the protrusion (403), the electric push rod (405) is fixedly installed on the outside of the frame (1), the connecting seat (406) is fixedly connected to the output end of the electric push rod (405), the scale (408) is set on the surface of the frame (1), the detection plate (409) is fixedly connected to one side of the slider (402), the electromagnetic ultrasonic sensor (407) is set on the surface of one of the detection plates (409), and the pointer (4010) is set on the top of the detection plate (409).
2. The novel non-destructive testing device for railway rail according to claim 1, characterized in that: The top of the frame (1) is fixedly connected to a handrail (2), and the bottom of the frame (1) is movably provided with a roller (3).
3. The novel non-destructive testing device for railway rail according to claim 1, characterized in that: The other end of the connecting rod (404) is rotatably connected to the connecting seat (406), and the two connecting rods (404) are staggered.
4. The novel non-destructive testing device for railway rail according to claim 1, characterized in that: When the electric push rod (405) is powered on, its output end is used to drive the connecting seat (406) to move, and when the connecting seat (406) is in the moving state, it is used to drive the two connecting rods (404) to move synchronously.
5. The novel non-destructive testing device for railway rail according to claim 1, characterized in that: The two connecting rods (404) in motion drive the two sliders (402) to move synchronously.
6. The novel non-destructive testing device for railway rail according to claim 1, characterized in that: The two sliders (402) in the moving state respectively drive the two detection plates (409) to move synchronously.
7. The novel non-destructive testing device for railway rail according to claim 1, characterized in that: The electromagnetic ultrasonic sensor (407) in the powered state is used to detect whether there are cracks on the surface of the railway rail.