Portable iron wheel track detection device
The portable rail inspection device uses a pulley and gear system to detect changes in the unevenness of the inner surface of the rail and triggers an alarm. This solves the problem of inaccurate detection in existing devices and achieves efficient, accurate rail inspection as well as convenient portability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-30
- Publication Date
- 2026-03-17
AI Technical Summary
Existing track inspection devices are unable to simultaneously and efficiently detect both depressions and protrusions on the inside of the track, resulting in inaccurate and inefficient inspections.
A portable iron rail inspection device was designed. It utilizes the contact between the pulley and the inner surface of the rail. Through the cooperation of gears and racks, the pressing block in the inspection box triggers the alarm when the convex and concave surfaces of the rail change, thus enabling timely maintenance.
It improves the efficiency and accuracy of track inspection, ensures the safety of railway tracks, and facilitates the carrying and recycling of the device.
Smart Images

Figure CN223999533U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of track inspection technology, specifically a portable iron wheel track inspection device. Background Technology
[0002] Rails are strips of steel used to pave routes for trains, subways, and other railways. They are a fundamental building material for the railway transportation industry, often exposed to the elements, enduring wind, rain, freezing, thawing, and train loads. The geometry of the rails constantly changes, internal parts and sleepers wear down, and derailments can even occur. Therefore, it is necessary to inspect railway tracks for abnormal conditions to alert railway workers for repairs and replacements. Current inspection devices are not ideal for simultaneously detecting both dents and bulges on the inner side of the track, resulting in low efficiency and inaccurate subsequent inspections. Utility Model Content
[0003] To address the shortcomings of existing technologies, this utility model provides a portable iron wheel track detection device, which solves the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a portable iron wheel track detection device, comprising a device box, wherein a first rack is slidably connected to one side of the inner wall of the device box, a rail frame is fixedly connected to one end of each of the two first racks, and a detection box is fixedly installed on one side of each of the two rail frames. A slot is provided inside the detection box, a second rack is slidably connected inside the slot, a sliding plate is fixedly connected to one end of the second rack, a half-gear is rotatably connected inside the detection box, the half-gear is located inside the slot and meshes with the second rack, a pressing block is fixedly installed on the outer side of the half-gear, an alarm is fixedly installed inside the detection box, two button devices are fixedly installed on one side of the alarm, the two button devices cooperate with the pressing block, a spring groove is provided at the bottom of the detection box, a first spring is fixedly connected to one side of the inner wall of the spring groove, a connecting block is fixedly connected to the other end of the first spring, one side of the connecting block is fixedly connected to the sliding plate, a second U-shaped block is fixedly connected to one end of the connecting block, and a pulley is rotatably connected inside the second U-shaped block.
[0005] Preferably, the bottom of the testing box has two sliding grooves, and the two sides of the connecting block are fixedly installed with limiting blocks. The two limiting blocks are slidably connected to the two sliding grooves. Through the cooperation of the two limiting blocks and the two sliding grooves, the connecting block will not fall downwards during the movement.
[0006] Preferably, the device box has several first telescopic rods slidably connected inside, one end of two of the first telescopic rods is fixedly connected to the rail frame, and two movable wheels are rotatably connected inside each of the two rail frames. The several first telescopic rods enable the two rail frames to be stable during the extension and retraction process.
[0007] Preferably, a rotating shaft is rotatably connected inside the device box, and a gear is fixedly installed on the outside of the rotating shaft. The gear is located inside the device box and meshes with two first racks. One end of the rotating shaft extends to the outside of the device box and is fixedly installed with a handle. Through the cooperation of the gear and the two first racks, the two rail frames can achieve the purpose of extension and retraction.
[0008] Preferably, the top of the device box has two circular grooves, and each of the two circular grooves is slidably connected with a pin. A circular block is fixedly installed at the bottom of the pin, and a second spring is fixedly connected to one side of the circular block. The second spring is fixedly connected to the inner wall of the device box, and the pin passes through the second spring. Each of the two rail frames has a snap-fit buckle fixedly installed on its corresponding side. Each of the two snap-fit buckles has a slot inside, and the two slots cooperate with the two pins. Through the cooperation of the two pins and the two slots, the two rail frames can be fixed after being retrieved, and the retrieved rail frames will not shake.
[0009] Preferably, a first U-shaped block is fixedly installed on the top of the device box, and a second telescopic rod is rotatably connected inside the first U-shaped block. A handle is fixedly connected to the top of the second telescopic rod, so that the device can be conveniently used and controlled through the handle and the second telescopic rod.
[0010] Preferably, a loudspeaker is fixedly installed on the top of each of the two rail frames, and the two loudspeakers are electrically connected to two alarms, so that the loudspeakers can clearly alert the staff.
[0011] This utility model provides a portable iron wheel and track detection device, which has the following advantages:
[0012] 1. This portable rail track detection device uses two pulleys to contact the inner surface of the rail. The convex or concave surface of the rail causes the connecting block and the second rack to move left and right. The left and right swing of the pressing block triggers the alarm, facilitating timely inspection and replacement of the rail, ensuring rail safety, and thus improving the efficiency of rail derailment detection.
[0013] 2. This portable iron rail detection device uses gears to move two first racks left and right, allowing two rail frames to extend and retract left and right. After the two rail frames are retracted, the device uses two pins and two circular grooves to fix the two rail frames after retraction, and also makes the device easy to carry. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model;
[0015] Figure 2 This utility model Figure 1 Enlarged view at point B in the middle;
[0016] Figure 3 This is a partial cross-sectional view of the device box of this utility model;
[0017] Figure 4 This is a partial cross-sectional view of the detection device of this utility model;
[0018] Figure 5 This utility model Figure 4 Enlarged view of point A in the middle;
[0019] Figure 6 This is a side view of the device of this utility model;
[0020] Figure 7 This is a cross-sectional view of the device box of this utility model.
[0021] Figure 8 This utility model Figure 6 Enlarged view of point C in the middle.
[0022] In the diagram: 1. Device box; 2. First rack; 3. Detection box; 4. Speaker; 5. Rail frame; 6. Moving wheel; 7. First telescopic rod; 8. Slot; 9. Snap-fit buckle; 10. Pin; 11. Turning handle; 12. Handle; 13. Second telescopic rod; 14. First U-shaped block; 15. Second U-shaped block; 16. Pulley; 17. Alarm; 18. Button device; 19. Plate groove; 20. Second rack; 21. Half gear; 22. Spring groove; 23. Sliding plate; 24. First spring; 25. Limiting block; 26. Connecting block; 27. Rotating shaft; 28. Gear; 29. Second spring; 30. Round block; 31. Pressing block; 32. Round groove; 33. Slide groove. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0024] Please see Figures 1 to 8This utility model provides a technical solution: a portable iron wheel track inspection device, including a device box 1. A first rack 2 is slidably connected to one side of the inner wall of the device box 1 on each corresponding side. One end of each of the two first racks 2 is fixedly connected to a rail frame 5. An inspection box 3 is fixedly installed on one side of each of the two rail frames 5. A plate groove 19 is opened inside the inspection box 3. A second rack 20 is slidably connected inside the plate groove 19. One end of the second rack 20 is fixedly connected to a sliding plate 23. A half-gear 21 is rotatably connected inside the inspection box 3. The half-gear 21 is located inside the plate groove 19, and the half-gear 21 interacts with the second rack 20. The gear 20 is engaged. A pressing block 31 is fixedly installed on the outer side of the half gear 21. An alarm 17 is fixedly installed inside the detection box 3. Two button devices 18 are fixedly installed on one side of the alarm 17. The two button devices 18 cooperate with the pressing block 31. A spring groove 22 is opened at the bottom of the detection box 3. A first spring 24 is fixedly connected to one side of the inner wall of the spring groove 22. A connecting block 26 is fixedly connected to the other end of the first spring 24. One side of the connecting block 26 is fixedly connected to the sliding plate 23. A second U-shaped block 15 is fixedly connected to one end of the connecting block 26. A pulley 16 is rotatably connected inside the second U-shaped block 15.
[0025] The bottom of the testing box 3 has two sliding grooves 33. Both sides of the connecting block 26 are fixedly installed with limiting blocks 25. The two limiting blocks 25 are slidably connected to the two sliding grooves 33. Through the cooperation of the two limiting blocks 25 and the two sliding grooves 33, the connecting block 26 will not fall down during the movement.
[0026] The device box 1 has several first telescopic rods 7 slidably connected inside. One end of two of the first telescopic rods 7 is fixedly connected to the rail frame 5. The two rail frames 5 are each rotatably connected to two movable wheels 6 inside. The several first telescopic rods 7 make the two rail frames 5 stable during the extension and retraction process.
[0027] A rotating shaft 27 is rotatably connected inside the device box 1. A gear 28 is fixedly installed on the outside of the rotating shaft 27. The gear 28 is located inside the device box 1 and meshes with two first racks 2. One end of the rotating shaft 27 extends to the outside of the device box 1 and is fixedly installed with a handle 11. Through the cooperation of the gear 28 and the two first racks 2, the two rail frames 5 can achieve the purpose of extension and retraction.
[0028] The top of the device box 1 has two circular grooves 32, and each of the two circular grooves 32 is slidably connected with a pin 10. A circular block 30 is fixedly installed at the bottom of the pin 10, and a second spring 29 is fixedly connected to one side of the circular block 30. The second spring 29 is fixedly connected to the inner wall of the device box 1, and the pin 10 passes through the second spring 29. Each of the two rail frames 5 has a snap fastener 9 fixedly installed on one side. Each of the two snap fasteners 9 has a slot 8 inside, and the two slots 8 cooperate with the two pins 10. Through the cooperation of the two pins 10 and the two slots 8, the two rail frames 5 can be fixed after being retrieved, and the retrieved rail frames 5 will not shake.
[0029] A first U-shaped block 14 is fixedly installed on the top of the device box 1. A second telescopic rod 13 is rotatably connected inside the first U-shaped block 14. A handle 12 is fixedly connected to the top of the second telescopic rod 13. The device can be conveniently used and controlled through the handle 12 and the second telescopic rod 13.
[0030] Speakers 4 are fixedly installed on the top of both rail frames 5. The two speakers 4 are electrically connected to two alarms 17. The speakers 4 can clearly remind the staff to carry out timely track maintenance.
[0031] In summary, this portable rail inspection device, when inspecting the inner side of the rails, allows the operator to pull the two pins 10 upwards while extending the two rail frames 5, causing them to disengage from the slots 8 and unlocking the two fixed rail frames 5. Then, based on the distance between the two rails, the operator rotates the handle 11, causing the gear 28 to rotate. Through the engagement of the gear 28 and the two first racks 2, the two rail frames 5 extend to both sides, bringing the concave surfaces of several movable wheels 6 into contact with the rail surface. Both inspection boxes 3 are equipped with power supplies, which move the movable wheels 6. At this time, the two first springs 24 are in a semi-contracted state. When there is a protrusion on the inner surface of the rail, the two connecting blocks 26 will move closer together, and the connection... As block 26 moves, the second rack 20 and sliding plate 23 also move in the same direction. Through the cooperation of the second rack 20 and half gear 21, the half gear 21 rotates, causing the pressing block 31 to swing to the left. When the pressing block 31 contacts the button device 18, the alarm 17 sounds, which is finally transmitted through the speaker 4 to remind the staff. When encountering the concave surface inside the rail, the two first springs 24 will apply an outward force to the two connecting blocks 26, causing the two connecting blocks 26 to move to the side away. At the same time, the two second racks 20 will also move, causing the pressing block 31 to swing to the right and trigger the alarm 17. When the device is not in use, pull the two pins 10 and turn the handle 11 in the opposite direction to achieve the purpose of retracting the two rail frames 5. Release the pins 10 to fix them, and press down the second telescopic rod 13 to retract it.
[0032] 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 portable rail track inspection device comprising a device case (1), characterised in that: The inner wall of the device box (1) corresponds to one side of the sliding connection with the first rack (2), one end of the two first racks (2) is fixedly connected with the rail frame (5), and the corresponding side of the two rail frames (5) is fixedly installed with the detection box (3). The inside of the detection box (3) is provided with a plate groove (19), the inside of the plate groove (19) is slidably connected with a second rack (20), one end of the second rack (20) is fixedly connected with a sliding plate (23), the inside of the detection box (3) is rotatably connected with a half gear (21), the half gear (21) is located in the inside of the plate groove (19), the half gear (21) is engaged with the second rack (20), the outside of the half gear (21) is fixedly installed with a pressing block (31), the inside of the detection box (3) is fixedly installed with an alarm (17), one side of the alarm (17) is fixedly installed with two button devices (18), the two button devices (18) are matched with the pressing block (31), the bottom of the detection box (3) is provided with a spring groove (22), one side of the inner wall of the spring groove (22) is fixedly connected with a first spring (24), the other end of the first spring (24) is fixedly connected with a connecting block (26), one side of the connecting block (26) is fixedly connected with the sliding plate (23), one end of the connecting block (26) is fixedly connected with a second U-shaped block (15), the inside of the second U-shaped block (15) is rotatably connected with a pulley (16).
2. A portable rail wheel track inspection device according to claim 1, wherein: The bottom of the detection box (3) is provided with two sliding grooves (33), the two sides of the connecting block (26) are fixedly installed with limiting blocks (25), and the two limiting blocks (25) are slidably connected with the two sliding grooves (33).
3. The portable rail wheel track inspection device of claim 1, wherein: The inside of the device box (1) is slidably connected with a plurality of first telescopic rods (7), one end of the two first telescopic rods (7) is fixedly connected with the rail frame (5), and the inside of the two rail frames (5) is rotatably connected with two moving wheels (6).
4. The portable iron rail track detection device according to claim 1, wherein: The inside of the device box (1) is rotatably connected with a rotating shaft (27), the outside of the rotating shaft (27) is fixedly installed with a gear (28), the gear (28) is located in the inside of the device box (1), the gear (28) is engaged with the two first racks (2), one end of the rotating shaft (27) extends to the outside of the device box (1) and is fixedly installed with a rotating handle (11).
5. The portable iron rail track detection device according to claim 1, wherein: The top of the device box (1) is provided with two circular grooves (32), the inside of the two circular grooves (32) is slidably connected with a latch (10), the bottom of the latch (10) is fixedly installed with a circular block (30), one side of the circular block (30) is fixedly connected with a second spring (29), the second spring (29) is fixedly connected with the inner wall of the device box (1), the latch (10) penetrates through the second spring (29), the corresponding side of the two rail frames (5) is fixedly installed with a clamping buckle (9), the inside of the two clamping buckles (9) is provided with a clamping groove (8), and the two clamping grooves (8) are matched with the two latches (10).
6. The portable iron rail track detection device according to claim 1, wherein: The top of the device box (1) is fixedly provided with a first U-shaped block (14), the inside of the first U-shaped block (14) is rotationally connected with a second telescopic rod (13), and the top of the second telescopic rod (13) is fixedly connected with a handle (12).
7. The portable iron rail track detection device according to claim 1, wherein: The top of each of the two rail frames (5) is fixedly provided with a loudspeaker (4), and the two loudspeakers (4) are electrically connected with two alarms (17).