Walking stick type ultrasonic flaw detection device for turnout steel rail

Abstract

The utility model relates to the technical field of flaw detectors, in particular to a walking stick type ultrasonic flaw detection device for a turnout steel rail, which comprises a walking stick rod, an upper walking stick rod is adaptively mounted at the top of a walking stick rod body, and an arm support ring is arranged at the upper part of the upper walking stick rod body and is used for fixing an arm of a user; a handle is fixedly installed on any side of the walking stick rod body, and a kettle is installed on the other opposite side of the handle and communicated with a flaw detection mechanism through a water pipe to release coupling liquid. A lower walking stick rod is adaptively mounted at the bottom of the walking stick rod body, a flaw detection mechanism is mounted at the bottom end of the lower walking stick rod body, and a flaw detection module in the flaw detection mechanism and a flaw detection module A are arranged at an included angle of 0-179 degrees; the flaw detection device is used for railway turnout rail bottom flaw detection, an operator can operate the flaw detection device with one arm, the device is simple in structure and practical, the operation efficiency is improved, and the labor intensity is reduced.

Description

Technical Field

[0001] This utility model relates to the field of flaw detector technology, and in particular to a cane-type ultrasonic flaw detector for turnout rails. Background Technology

[0002] As the core load-bearing component of the railway transportation system, rails are subjected to dynamic loads, temperature stress, and environmental corrosion from trains over long periods, making them prone to defects such as fatigue cracks. Railway turnouts, as crucial hubs for train turning and track changing, are the "throat" of railway lines; their complex structures (switches, stock rails, frogs, etc.) and concentrated stress make them susceptible to damage. Failure to detect damage in time can lead to serious accidents such as derailments.

[0003] Currently, flaw detection of various components of turnouts is included in periodic management. The base of the turnout switch rails, stock rails, and frog rails requires regular specialized ultrasonic flaw detection. Flaw detection can only be performed manually using handheld general-purpose single probes (K2.5 and K1). The following problems exist in flaw detection: 1. The complex structure of the turnout rail base makes flaw detection difficult. The base of the turnout rails (switch rails, stock rails, frog rails, etc.) contains fasteners, tie rods, and other components, making it impossible to perform trolley-type multi-probe scanning; only manual scanning is possible. The geometric features of the turnout rail base area are complex, requiring front and rear K2.5 probe scanning on the rail base slope and front and rear K1 or K2.5 probe scanning on the rail base side. Each rail base edge requires at least four scans. 2. The workload is large and the operation time is short. Each flaw detection workshop manages hundreds of turnouts, with turnout rails ranging from tens of meters to over a hundred meters long. A single work shift may not even be able to complete the flaw detection of one turnout in a single maintenance window. 3. The work is labor-intensive and inefficient. The flaw detection of the turnout rail bottom is a purely manual operation. The operator must first apply a coupling agent and then use a handheld single probe K2.5 and K1 to perform reciprocating scanning. The operator needs to bend over for a long time, resulting in high labor intensity and low detection efficiency.

[0004] Therefore, this application provides a cane-type ultrasonic flaw detection device for turnout rails to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this invention is to provide a cane-type ultrasonic flaw detection device for turnout rails, which solves the problems of existing flaw detectors having great difficulty in detecting flaws at the bottom of turnout rails, high manual bending work intensity, and low detection efficiency.

[0006] To solve the above-mentioned technical problems, this utility model provides a cane-type ultrasonic flaw detection device for turnout rails, including a cane stick, an upper cane stick fitted into the top of the cane stick body, an arm support ring provided on the upper part of the upper cane stick body for fixing the user's arm; a handle is fixedly installed on any side of the cane stick body, and a water bottle is installed on the opposite side of the handle, the water bottle is connected to the flaw detection mechanism through a water pipe for releasing coupling fluid; a lower cane stick fitted into the bottom of the cane stick body, and a flaw detection mechanism is installed at the bottom of the lower cane stick body, the flaw detection module in the flaw detection mechanism and flaw detection module A are set at an angle of 0-179 degrees.

[0007] A further improvement of the present invention is that the flaw detection mechanism also includes a frame, the frame being fixed with a U-shaped fixing frame by a screw, a fixing shaft being provided in the middle of the fixing frame body, and the fixing shaft being adapted to be installed at the bottom end of the lower cane body.

[0008] A further improvement of this utility model is that: a flaw detection module and a flaw detection module A are installed on the frame body; the flaw detection module and the flaw detection module A form a symmetrical angle.

[0009] A further improvement of this utility model is that the flaw detection module and flaw detection module A have the same structure and size; the flaw detection module also includes a flaw detection module housing, the inner cavity of the flaw detection module housing is adapted to install probe A, the top of probe A body is adapted to install probe spring, and the probe spring is fixed by probe pressure plate.

[0010] A further improvement of this utility model is that: the probe in the flaw detection module A is symmetrical with probe A to form an angle; magnets are installed on both sides of the probe body, water pipes are set on the outside of the magnet body, and foot bearing rings are set on the outside of the water pipe body; the foot bearing rings, magnets and probes are respectively installed on the frame and move against the rail.

[0011] A further improvement of this utility model is that a fixing strap is provided at one end of the arm support ring body, and the other end of the fixing strap is locked or unlocked by a fixing buckle. The fixing strap is used to fix the user's upper arm.

[0012] A further improvement of this utility model is that: the upper and lower parts of the walking stick body are respectively fitted with adjustment heads and adjustment head A, and the adjustment heads and adjustment head A respectively adjust the length of the upper and lower walking sticks to adapt to users of different heights.

[0013] A further improvement of this utility model is that: the cane body is fixed with a water bottle by a water bottle fixing ring, and a water valve is provided below the water bottle body. The water valve is used to adjust the flow rate of the coupling agent in the water bottle.

[0014] A further improvement of this utility model is that a junction box is provided below the kettle body, and one end of the probe connection wire in the junction box is electrically connected to the flaw detection module and flaw detection module A respectively; the other end is electrically connected to the flaw detector host through the probe connection bus, and the flaw detector host is used to view the data information detected by the flaw detector.

[0015] A further improvement of this utility model is that a water valve is fitted and installed at the lower part of the kettle body, and the water valve is connected to the water guide pipe through a water pipe, and the water guide pipe is set on one side of the flaw detection module A.

[0016] A further improvement of this utility model is that a junction box is provided on the cane body, and the junction box is used to connect the probe connection wire and the probe connection bus.

[0017] By adopting the above technical solution, this utility model has the following beneficial effects:

[0018] 1. This utility model provides a cane-type ultrasonic flaw detection device for turnout rails. The flaw detection mechanism has two sets of flaw detection modules arranged vertically, one set for vertical flaw detection and the other set for horizontal flaw detection. The flaw detection modules adopt complementary external angles to improve the ultrasonic detection coverage, realize bidirectional synchronous detection, significantly shorten the detection time, and improve the detection efficiency.

[0019] 2. This utility model provides a cane-type ultrasonic flaw detection device for turnout rails. This flaw detection device is used for flaw detection on the bottom of railway turnout rails. It can be operated by a single person. The device has a simple and practical structure, which improves work efficiency and reduces labor intensity.

[0020] 3. This utility model provides a cane-type ultrasonic flaw detection device for turnout rails. The flaw detection device has a reasonable structure and can be operated by a single arm, reducing the intensity of bending over for detection and improving the efficiency of detection work. Attached Figure Description

[0021] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the overall structure of a cane-type ultrasonic flaw detection device for turnout rails.

[0023] Figure 2 A three-dimensional structural diagram of a cane-type ultrasonic flaw detection device for turnout rails;

[0024] Figure 3 This is a three-dimensional structural diagram of the flaw detection mechanism;

[0025] Figure 4 This is a side view of the flaw detection mechanism.

[0026] Figure 5 This is a schematic diagram of the front structure of the flaw detection mechanism;

[0027] Figure 6 This is a side sectional view of the flaw detection mechanism.

[0028] Reference numerals: 1. Walking stick; 2. Handle; 3. Lower walking stick; 4. Flaw detection mechanism; 5. Water bottle; 6. Flaw detector main unit; 7. Wall support ring; 8. Fixing strap; 9. Fixing buckle; 10. Adjusting head; 11. Water bottle fixing ring; 12. Junction box; 13. Probe connection cable; 14. Adjusting head A; 15. Probe connection bus; 16. Frame; 17. Fixing bracket; 18. Screw; 19. Fixing shaft; 20. Flaw detection module; 21. Flaw detection module A; 22. Base bearing ring; 23. Water valve; 24. Water pipe; 25. Probe; 26. Magnet; 28. Flaw detection module housing; 29. ​​Probe pressure plate; 30. Probe spring; 31. Probe A; 32. Upper walking stick. Detailed Implementation

[0029] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0030] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] The present invention will be further explained below with reference to specific embodiments.

[0033] like Figures 1-6 As shown, this embodiment provides a cane-type ultrasonic flaw detection device for turnout rails, including a cane 1, an upper cane 32 fitted inside the top of the cane 1 body, an arm support ring 7 provided on the upper part of the upper cane 32 body for fixing the user's arm; a handle 2 fixedly installed on any side of the cane 1 body, a water bottle 5 installed on the opposite side of the handle 2, the water bottle 5 being connected to the flaw detection mechanism 4 through a water pipe for releasing coupling fluid; a lower cane 3 fitted inside the bottom of the cane 1 body, the flaw detection mechanism 4 installed at the bottom of the lower cane 3 body, the flaw detection module 20 and flaw detection module A21 in the flaw detection mechanism 4 are set at an angle of 0-179 degrees. Specifically, a height-adjustable upper cane 32 is installed at the top of the cane 1. An arm support ring 7 is set on the upper part of the upper cane 32. The arm support ring 7 is used to fix the user's arm and can be adjusted to accommodate users of different heights. A handle 2 is fixedly installed on the relatively horizontal side of the arm support ring 7. The handle 2 is located below the arm support ring 7 and is used by the user to lift the entire flaw detection device to improve the flexibility and stability of operation. A water bottle 5 is set on the other side of the handle 2. A water outlet pipe (not shown in the figure) is set at the bottom of the water bottle 5. The water outlet pipe is connected to a water pipe (not shown in the figure). The water pipe is connected to the water guide pipe 24 in the flaw detection mechanism 4 to release the coupling fluid. A water valve 23 is set below the water bottle 5. The water valve 23 is used to regulate the flow rate of the coupling agent in the water bottle 5. A lower cane 3 is fitted and installed at the bottom of the cane 1 body. The length of the lower cane 3 can also be adjusted by adjusting head A14 to facilitate flaw detection operations. A flaw detection mechanism 4 is fitted and installed at the bottom of the lower cane 3 body. The flaw detection module 20 and flaw detection module A21 in the flaw detection mechanism 4 form an angle with each other. The angle is set vertically and the outer angle is 90 degrees. The flaw detection modules in this flaw detection device adopt complementary outer angles to improve the ultrasonic detection coverage, reduce the risk of missed detection, and improve detection efficiency.

[0034] like Figures 2-6As shown, in this embodiment, the flaw detection mechanism 4 also includes a frame 16. The frame 16 is L-shaped, and a fixing frame 17 is installed outside the frame 16 in a right-angle direction. The fixing frame 17 can rotate and move on the frame 16. This rotation and movement is achieved by screws 18 at both ends of the U-shaped fixing frame 17. The screws 18 can also fix the fixing member 17 in any position. A fixing shaft 19 is provided in the middle of the upper surface of the fixing frame 17. The fixing shaft 19 is adapted to be installed at the bottom end of the lower cane 3. A through hole (not shown in the figure) is provided at the bottom end of the lower cane 3. As shown in the figure, the diameter of the through hole is adapted to the inner or outer diameter of the fixed shaft 19. The fixed shaft 19 is fixed by a nut (not shown in the figure). The fixed shaft 19 is similar to the structure of a screw (not shown in the figure) and a nut. The flaw detection module 20 and the flaw detection module A21 are installed on the frame 16 body. The flaw detection module 20 and the flaw detection module A21 form a symmetrical external angle structure. The flaw detection module 20 and the flaw detection module A21 have the same structure, which facilitates the operation of the user and reduces the difficulty of use.

[0035] Furthermore, the flaw detection module 20 also includes a flaw detection module housing 28. Probes A31 are fitted and installed within the cavity of the flaw detection module housing 28. The number, position, and angle of probes A31 can be customized according to user requirements. The probes are commercially available products and will not be described in detail here. Probes A31 are in contact with the rail surface. A probe spring 30 is fitted and installed on the top of the probe A31 body, and the probe spring 30 is fixed by a probe pressure plate 29. By setting the probe spring 30, probes A31 can always be in contact with the rail surface. Probes 25 and A31 in the flaw detection module A21 are symmetrically arranged at an external angle of 90 degrees. The complementary external angle arrangement of the two probes 25 and A31 improves the detection coverage of the flaw detection device and enables simultaneous scanning in two directions, significantly shortening the detection time and improving detection efficiency. Magnets 26 are installed on both sides of the probe 25 body on the frame 16. The magnets 26 further increase the contact between the probe and the rail surface. Water pipes 24 are set on the outside of the magnets 26 body. The water pipes 24 are used to release the coupling fluid in the water tank 5, which increases the sensitivity and anti-interference ability of the probe. Foot bearing rings 22 are set on the outside of the water pipes 24 body. The foot bearing rings 22 are used for the movement of the flaw detection module 20 and flaw detection module A21 in the entire flaw detection mechanism. This flaw detection device realizes synchronous scanning in both directions, reduces detection time, and improves detection efficiency.

[0036] like Figures 1-2As shown, in this embodiment, the upper and lower parts of the walking stick 1 are respectively fitted with adjustment heads 10 and A14. Adjustment heads 10 and A14 adjust the lengths of the upper walking stick 32 and lower walking stick 3 to accommodate users of different heights. Through the two adjustment heads, the distance between the upper walking stick 32 and lower walking stick 3 can be precisely controlled, making it convenient for users of different heights. The upper part of the walking stick 32 is equipped with an arm support ring 7. One end of the arm support ring 7 is equipped with a fixing strap 8. The arm support ring 7 is a semi-circular ring. The other end of the fixing strap 8 is locked or unlocked by a fixing buckle 9. The fixing buckle 9 is a commercially available product and will not be described in detail here. The fixing strap 8 is used to fix the user's upper arm. The walking stick 1 is equipped with a water bottle 5 fixed by a water bottle fixing ring 11. A junction box 12 is set below the water bottle 5. The junction box 12 is a commercially available product and will not be described in detail here. One end of the probe connection wire 13 in the junction box 12 is electrically connected to the flaw detection module 20 and the flaw detection module A21 respectively. The other end is electrically connected to the handheld flaw detector host 6 through the probe connection bus 15. The flaw detector host 6 is used to view the data information detected by the flaw detector. The user pushes the flaw detection mechanism 4 in the flaw detection device. The flaw detection module 20 and the flaw detection module A21 in the flaw detection mechanism 4 emit and collect A waves and B waves in two directions. The location of the rail crack is determined by the waveform. A water valve 23 is fitted and installed on the lower part of the water tank 5. The water valve is a commercially available product and will not be described in detail here. The water valve 23 is connected to the water guide pipe 24 through a water pipe. The water guide pipe 24 is located on one side of the flaw detection module A21. The water tank 5 controls the release flow of the coupling fluid through the water valve 23. The flaw detection device has a simple structure and can be operated by a single person, reducing the labor intensity of users bending over for detection and improving the efficiency of detection operations.

[0037] This utility model also provides the working principle of a cane-type ultrasonic flaw detection device for turnout rails: The user first holds the handle 2 and adjusts the distance between the upper cane 32 and the lower cane 3. When the appropriate distance is reached, the user first fixes the user's upper arm in the arm support ring 7 using the fixing strap 8. After adding coupling fluid to the water tank 5, the user tests and inspects the connection between the flaw detector main unit 6 and the flaw detection mechanism 4 to check for any problems. If the test is correct, the user starts the flaw detector main unit 6 and simultaneously controls the handle 2 to place the flaw detection mechanism 4 on the rail. The user opens the water valve 23 to release the coupling fluid and pushes the flaw detection mechanism 4 along the rail. The flaw detection module 20 and flaw detection module A21 in the flaw detection mechanism 4 are arranged vertically, with one set for vertical flaw detection and the other for horizontal flaw detection. The A-wave and B-wave information in both directions are transmitted to the screen of the flaw detector host 6. The user can determine the location of rail cracks by observing the flaw detector host 6. This flaw detection device has a simple structure and can be operated by a single person, reducing the user's bending intensity for detection and improving detection efficiency. The flaw detection modules in this flaw detection device adopt complementary external angles to improve the ultrasonic detection coverage. Simultaneous scanning in both directions greatly shortens the detection time and improves detection efficiency.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A cane-type ultrasonic flaw detection device for turnout rails, characterized in that, Includes a cane (1), an upper cane (32) is fitted and installed on the top of the cane (1), and an arm support ring (7) is provided on the upper part of the upper cane (32) for fixing the user's arm; The cane handle (1) has a handle (2) fixedly installed on any side of the body. The handle (2) is installed on the opposite side of the other side with a water bottle (5). The water bottle (5) is connected to the flaw detection mechanism (4) through a water pipe to release the coupling fluid. The bottom of the cane (1) is fitted with a lower cane (3), and a flaw detection mechanism (4) is installed at the bottom of the lower cane (3). The flaw detection module (20) in the flaw detection mechanism (4) is set at an angle with the flaw detection module A (21) and the angle is 0-179 degrees.

2. The cane-type ultrasonic flaw detection device for turnout rails according to claim 1, characterized in that, The flaw detection mechanism (4) also includes a frame (16), which is fixed to a U-shaped fixed frame (17) by a screw (18). A fixed shaft (19) is provided in the middle of the fixed frame (17), and the fixed shaft (19) is adapted to be installed at the bottom of the lower cane (3) body.

3. The cane-type ultrasonic flaw detection device for turnout rails according to claim 2, characterized in that, The frame (16) is equipped with a flaw detection module (20) and a flaw detection module A (21); the flaw detection module (20) and the flaw detection module A (21) form a symmetrical angle.

4. The cane-type ultrasonic flaw detection device for turnout rails according to claim 3, characterized in that, The flaw detection module (20) also includes a flaw detection module housing (28), with a probe A (31) adapted to be installed inside the flaw detection module housing (28), and a probe spring (30) adapted to be installed on the top of the probe A (31) body, and the probe spring (30) is fixed by a probe pressure plate (29).

5. The cane-type ultrasonic flaw detection device for turnout rails according to claim 3, characterized in that, The probe (25) in the flaw detection module A (21) and the probe A (31) form an angle symmetrical to each other; magnets (26) are installed on both sides of the probe (25) body, and water pipes (24) are set on the outside of the magnet (26) body, and foot bearing rings (22) are set on the outside of the water pipes (24) body. The foot bearing rings (22), magnets (26) and probes (25) are installed on the frame (16) and move against the rail.

6. The cane-type ultrasonic flaw detection device for turnout rails according to claim 1, characterized in that, The arm support ring (7) has a fixing strap (8) at one end and the other end of the fixing strap (8) is locked or unlocked by a fixing buckle (9). The fixing strap (8) is used to fix the user's upper arm.

7. The cane-type ultrasonic flaw detection device for turnout rails according to claim 1, characterized in that, The upper and lower parts of the walking stick (1) are respectively fitted with adjustment head (10) and adjustment head A (14). Adjustment head (10) and adjustment head A (14) adjust the length of the upper walking stick (32) and the lower walking stick (3) to suit users of different heights.

8. The cane-type ultrasonic flaw detection device for turnout rails according to claim 1, characterized in that, The cane handle (1) is fixed to the kettle (5) by the kettle fixing ring (11). A water valve (23) is set below the kettle (5). The water valve (23) is used to adjust the flow rate of the coupling agent in the kettle (5).

9. The cane-type ultrasonic flaw detection device for turnout rails according to claim 8, characterized in that, A water valve (23) is fitted to the lower part of the kettle (5). The water valve (23) is connected to the water pipe (24) through a water pipe. The water pipe (24) is located on one side of the flaw detection module A (21).

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