An ultrasonic testing aid

Abstract

The utility model discloses an ultrasonic detection auxiliary device mainly relates to ultrasonic nondestructive testing technical field. Including handle pole, the bottom of handle pole knuckle has swing frame, the both ends of swing frame are equipped with reverse extension's strip slot hole and clamping piece, the clamping piece is used for clamping ultrasonic detection head, the strip slot hole is equipped with the sliding fit of sliding axle, the sliding axle top is equipped with the fixed connection of control rod, control rod and handle pole parallel extension, the position of control rod along handle pole length direction is adjustable. The utility model has the beneficial effect that through the tool clamping probe, realizes the non - squatting posture's scanning operation, and the fatigue and difficulty of examination are alleviated.

Description

Technical Field

[0001] This utility model relates to the field of ultrasonic nondestructive testing technology, specifically an ultrasonic testing auxiliary device. Background Technology

[0002] When performing ultrasonic testing on rails, all welds and joints must be thoroughly inspected. The joints below the track surface are particularly critical, as their quality directly impacts the rail's safety and stability. Defects in this area, such as cracks, incomplete penetration, or porosity, can lead to stress concentration and rail breakage during train operation, potentially causing serious safety accidents.

[0003] During specific inspections, the inspection locations include the rail head, rail web, and rail foot. For the rail foot, the probe needs to be placed on either side of the rail foot or at the junction of the rail web and rail foot, and scanned longitudinally along the rail. For recessed areas, the scanning angle must avoid the rail body and adapt to the curvature of the rail surface being inspected. Therefore, when performing ultrasonic testing on the rail foot, the inspector needs to hold the probe and squat on one side of the rail, repeatedly pushing the probe back and forth for inspection. This working posture and method places high demands on the inspector's physical strength and endurance, making the work quite strenuous. They need to squat on one side of the rail for extended periods, a posture that keeps the leg and lower back muscles constantly tense. To ensure comprehensive inspection, the inspector also needs to frequently squat and stand up. This repetitive movement not only puts enormous pressure on the knees and lower back but also causes the arms and wrists to remain in a state of tension for extended periods, quickly leading to soreness and fatigue in the arm holding the probe. In addition, when the person crouches down, their body casts a shadow, blocking the light and making the testing area dim. This undoubtedly increases the difficulty of the test and has an adverse effect on the accuracy of the test. Utility Model Content

[0004] The purpose of this invention is to provide an ultrasonic testing auxiliary device that uses a tool to hold the probe, enabling scanning operations without a squatting posture, thus reducing fatigue and difficulty in the examination.

[0005] To achieve the above objectives, this utility model employs the following technical solution:

[0006] An ultrasonic testing auxiliary device includes a handle, a swing frame hinged to the bottom end of the handle, and two ends of the swing frame having counter-extending strip-shaped slots and clamping members. The clamping members are used to clamp an ultrasonic testing head. A sliding shaft is slidably fitted in the strip-shaped slots. A control rod is fixedly connected to the sliding shaft above it. The control rod extends parallel to the handle, and the position of the control rod along the length of the handle is adjustable.

[0007] The length of the handle is 50-120cm.

[0008] The upper part of the handle is fitted with a sleeve that can be pulled out. The bottom end of the sleeve is provided with a spring pin. The handle has a row of pin holes at equal intervals along its length. The spring pin is movably connected to the pin holes. The top end of the sleeve is provided with an L-shaped handle.

[0009] The control lever and the handle are arranged side by side. One side of the handle is provided with a vertical plate extending along its radial line. A sliding sleeve is fixed to the bottom of the vertical plate. The control lever passes through the sliding sleeve and is slidably connected to the sliding sleeve. A rack is provided on the side of the control lever near the handle. The rack is located above the sliding sleeve. A rotating shaft is rotatably mounted on the vertical plate. One end of the rotating shaft is provided with a circular handle, and the other end of the rotating shaft is provided with a gear meshing with the rack.

[0010] An annular seat is fixed through the upright plate, and the rotating shaft passes through the annular seat and rotates with the annular seat. A rubber ring is provided on the inner ring of the annular seat, and the rubber ring is in frictional contact with the circumferential surface of the rotating shaft.

[0011] The clamping component includes a base body with two horizontally penetrating holes running vertically through it. A telescopic rod slides through the holes and engages with the telescopic rod. One end of the telescopic rod is fixed with a pressure plate perpendicular to it, and the other end is fixed with a connecting rod perpendicularly connected to it. The connecting rod extends away from the handle, and the two connecting rods are located at the two ends of the two telescopic rods respectively. A clamping block is fixed to the outer end of the connecting rod, and the two clamping blocks are symmetrically arranged on both sides of the base body. A helical spring is provided between the pressure plate and the base body, sleeved on the outside of the telescopic rod. The spring has an elastic force that brings the clamping block closer to the base body.

[0012] A boss is fixed on the end face of the seat away from the sleeve, and the boss is a rubber part.

[0013] The clamping member includes a column head, one end of which is fixed to the swing frame, and the other end of which is fitted with a sleeve. The position of the sleeve relative to the column head is adjustable, and the end of the sleeve away from the column head is fixed to the base body.

[0014] The sleeve is provided with a slot for movably inserting into the end near the column head. A tightening bolt is threaded through the side wall of the slot near the opening and the inner end of the tightening bolt abuts against the column head.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] By holding the inspection head in place with the clamping mechanism, inspectors can hold the handle at any position to scan the target area. This eliminates the need for prolonged squatting or repeated standing to adjust body posture for inspection, and also reduces the need to hold the inspection head for extended periods, thus alleviating muscle stiffness, soreness, and fatigue, and reducing workload. Simultaneously, the angle of the swing frame can be adjusted by raising and lowering the control lever to obtain a more suitable inspection head angle for the scanning area, while avoiding nearby space and light, facilitating a better field of view, reducing inspection difficulty, and improving inspection efficiency and accuracy. Attached Figure Description

[0017] Figure 1 This is a side view of the present invention (the swing frame is tilted upwards).

[0018] Figure 2 This is a utility model Figure 1 A schematic diagram.

[0019] Figure 3 This is a schematic diagram of the upper view of this utility model.

[0020] Figure 4 This is a schematic diagram of the utility model (the swing frame is tilted downwards).

[0021] Figure 5 This is a utility model Figure 4 A schematic diagram of the bottom structure.

[0022] Figure 6 This is a schematic diagram of the components of this utility model disassembled.

[0023] The labels shown in the attached diagram:

[0024] 1. Handle; 2. Tube sleeve; 3. L-shaped handle; 4. Hinge seat; 5. Swing frame; 6. Strip slot; 7. Sliding shaft; 8. Control lever; 9. Vertical plate; 10. Sliding sleeve; 11. Rack; 12. Gear; 13. Circular handle; 14. Ring seat; 15. Column head; 16. Tightening bolt; 17. Sleeve seat; 18. Seat body; 19. Boss; 20. Sliding hole; 21. Telescopic rod; 22. Connecting rod; 23. Pressure plate; 24. Clamping block; 25. Spring. Detailed Implementation

[0025] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the present invention, and these equivalent forms also fall within the scope defined in this application.

[0026] Example:

[0027] This auxiliary device is used to clamp the detection head, thereby obtaining a suitable angle through setting, and is convenient for holding and standing operation in terms of length, so that squatting posture detection is not required.

[0028] The tool includes a handle 1, which can be 80cm long, allowing for standing scanning of near-ground positions. Alternatively, a retractable sleeve 2 can be provided at the upper end of the handle 1. A spring pin 25 is located at the bottom of the sleeve 2. A row of pin holes is evenly spaced along the length of the handle 1. The spring pin 25 engages with different pin holes to limit the relative pulling range of the handle 1 and sleeve 2, thus extending the handle 1 and allowing for overall length adjustment. This structure is common in other tools (e.g., cleaning tools, telescopic tools) and is not limited to this example; other locking or latching structures can be used to secure the sleeve 2 and handle 1. An L-shaped handle 3 is located at the top of the sleeve 2. The L-shaped handle 3 is bent and tilted to one side, resembling a gun handle for easy gripping.

[0029] The bottom end of the handle 1 is provided with a hinge seat 4, and a swing frame 5 is rotatably connected to the hinge seat 4. The two opposite ends of the swing frame 5 are respectively provided with a strip-shaped slot 6 and a clamping member. The extension direction of the strip-shaped slot 6 and the column head 15 is consistent. A sliding shaft 7 is slidably fitted inside the strip-shaped slot 6. Both ends of the sliding shaft 7 are provided with stops. The sliding shaft 7 is a round shaft and fits into the slot of the strip-shaped slot 6. A control rod 8 is fixedly connected to the sliding shaft 7 above it. The control rod 8 and the handle 1 are arranged side by side. A vertical plate 9 extending along the radial line is provided on one side of the handle 1. The bottom of the vertical plate 9... A sliding sleeve 10 is fixed, and the control rod 8 passes through the sliding sleeve 10 and is slidably connected to the sliding sleeve 10. A rack 11 is provided on the side of the control rod 8 near the handle 1, and the rack 11 is located above the sliding sleeve 10. A rotating shaft is rotatably mounted on the upright plate. One end of the rotating shaft is provided with a circular handle 13, and the other end of the rotating shaft is provided with a gear 12. The gear 12 meshes with the rack 11 and is located between the handle 1 and the rack 11. By rotating the circular handle 13, the relative height position of the control rod 8 relative to the handle 1 can be controlled, thereby changing the angle of the bottom swing frame 5. A damping structure is provided on the rotating shaft. For example, an annular seat 14 passes through the upright plate 9, allowing the rotating shaft to pass through the annular seat 14 and rotate in cooperation with the annular seat 14. A rubber ring is provided on the inner ring of the annular seat 14. The rubber ring contacts the circumference of the rotating shaft, providing friction to prevent the rotating shaft from rotating. Combined with the mechanical resistance of the meshing, the swing frame 5 can maintain a relatively stable state without human intervention.

[0030] The clamping member includes a column head 15, one end of which is fixed to the swing frame 5. The axis of the column head 15 is consistent with the length direction of the strip-shaped slot 6, and the column head 15 and the strip-shaped slot 6 are arranged in opposite directions. By swinging the swing frame 5, the upward or downward angle of the clamping member can be adjusted.

[0031] A sleeve 17 is fitted onto the column head 15, and a slot is provided at one end of the sleeve 17 near the column head 15 for movable insertion. A tightening bolt 16, threadedly connected to the slot, passes through the side wall of the slot near the opening. The inner end of the tightening bolt 16 abuts against the column head 15, thereby installing and fixing the sleeve 17. Alternatively, a countersunk groove can be provided on the column head 15. One or more countersunk grooves are provided, equidistantly arranged along the length of the column head 15. The tightening bolt 16 movably inserts into the countersunk groove, thereby fixing the sleeve 17 in place. Based on the above structure, the clamping component can be disassembled, allowing for replacement of the clamping component that mates with the detection head. Simultaneously, the distance between the clamping component and the hinge axis can be adjusted, thereby obtaining a more flexible swing range and adjusting the forward extension capability.

[0032] The end of the sleeve 17 away from the column head 15 is fixed with a seat body 18. The seat body 18 is a square piece fixed on the sleeve 17. A rubber boss 19 is fixed on the end face of the seat body 18 away from the sleeve 17. The boss 19 can be annular, circular, or waist-shaped. In this example, a waist-shaped annular rubber boss is recommended to provide gentle support and contact when it is used with the detection head. It also has a certain elasticity. The annular structure increases the ability of deformation elasticity and can play a buffering role.

[0033] Two sliding holes 20 are transversely penetrating the base 18. The sliding holes 20 are arranged vertically relative to the base 18 and symmetrically arranged vertically relative to the sleeve 17. The length direction of the sliding holes 20 is perpendicular to the column head 15. A telescopic rod 21 that slides through the sliding hole 20 is inserted therewith. One end of the telescopic rod 21 is fixed with a pressure plate 23 perpendicular to it, and the other end of the telescopic rod 21 is fixed with a connecting rod 22 perpendicularly connected to it. The connecting rod 22 extends away from the column head 15, and a clamping block 24 is fixed at the end of the connecting rod 22. The connecting rods 22 on the two telescopic rods 21 are arranged in opposite directions, so that there are clamping blocks 24 on both sides of the base 18. The clamping blocks 24 move closer or further away from each other based on the sliding of the telescopic rods 21.

[0034] The pressure plates 23 of the two telescopic rods 21 are also arranged in opposite directions. A spiral spring 25 is provided between the pressure plate 23 and the base 18, which is sleeved on the telescopic rod 21. The spring 25 has an elastic force that brings the clamping block 24 closer to the base 18. The end of the pressure plate 23 is inclined towards the middle of the base 18, so that when operating, the operator can easily pinch the pressure plate 23 with their fingers to move the clamping blocks 24 on both sides away, and then clamp the detection head after releasing it.

[0035] The aforementioned clamping components allow for easy and convenient clamping of the detection head by pinching and releasing. Adjusting the swing angle of the swing frame 5 adapts to the conditions of the target area while avoiding nearby space for convenient observation.

[0036] When using this tool for specific testing, the method is as follows:

[0037] Select an appropriately sized clamping device, place the sleeve 17 onto the column head 15, and secure it.

[0038] Pinch the pressure plates 23 on both sides to clamp the detection head onto the clamping device.

[0039] By rotating the circular handle 13 and adjusting the control lever 8 up and down, the swing angle of the swing frame 5 can be adjusted. Then, it can be observed whether the detection surface of the detection head matches the detection area during the swing, and finally, an appropriate swing angle can be obtained.

[0040] Hold the handle 1 or L-shaped handle and extend or retract your arm to scan the rail base area from front to back.

[0041] Using this tool, the length of the handle 1 allows inspectors to perform inspections without squatting, enabling them to adopt a standing or other suitable and comfortable posture. Furthermore, the length of the handle 1 significantly increases the scanning range of the inspection head during arm movements, eliminating the need for repeated squatting and moving, greatly reducing inspection fatigue and difficulty. The clamping mechanism allows for relaxation and appropriate movement of the hand and upper limbs, significantly improving the relief of muscle soreness and preventing strain from fixed postures.

[0042] Furthermore, since there is no need to collapse or squat, the light will not be blocked, and the extension of the clamping device allows for ample observation space, which is conducive to focusing on the detection area, obtaining a better field of view, and improving the detection level.

Claims

1. An ultrasonic testing auxiliary device, characterized in that, The device includes a handle, with a swing frame hinged to the bottom end of the handle. The swing frame has counter-extending strip-shaped slots and clamping members at both ends. The clamping members are used to clamp the ultrasonic testing head. A sliding shaft is slidably fitted inside the strip-shaped slots. A control rod is fixedly connected to the sliding shaft above it. The control rod extends parallel to the handle and its position is adjustable along the length of the handle.

2. The ultrasonic testing auxiliary device according to claim 1, characterized in that, The length of the handle is 50-120cm.

3. The ultrasonic testing auxiliary device according to claim 1, characterized in that, The upper part of the handle is fitted with a sleeve that can be pulled out. The bottom end of the sleeve is provided with a spring pin. The handle has a row of pin holes at equal intervals along its length. The spring pin is movably connected to the pin holes. The top end of the sleeve is provided with an L-shaped handle.

4. The ultrasonic testing auxiliary device according to claim 1, characterized in that, The control lever and the handle are arranged side by side. One side of the handle is provided with a vertical plate extending along its radial line. A sliding sleeve is fixed to the bottom of the vertical plate. The control lever passes through the sliding sleeve and is slidably connected to the sliding sleeve. A rack is provided on the side of the control lever near the handle. The rack is located above the sliding sleeve. A rotating shaft is rotatably mounted on the vertical plate. One end of the rotating shaft is provided with a circular handle, and the other end of the rotating shaft is provided with a gear meshing with the rack.

5. The ultrasonic testing auxiliary device according to claim 4, characterized in that, An annular seat is fixed through the upright plate, and the rotating shaft passes through the annular seat and rotates with the annular seat. A rubber ring is provided on the inner ring of the annular seat, and the rubber ring is in frictional contact with the circumferential surface of the rotating shaft.

6. The ultrasonic testing auxiliary device according to claim 1, characterized in that, The clamping component includes a base body with two horizontally penetrating holes running vertically through it. A telescopic rod slides through the holes and engages with the telescopic rod. One end of the telescopic rod is fixed with a pressure plate perpendicular to it, and the other end is fixed with a connecting rod perpendicularly connected to it. The connecting rod extends away from the handle, and the two connecting rods are located at the two ends of the two telescopic rods respectively. A clamping block is fixed to the outer end of the connecting rod, and the two clamping blocks are symmetrically arranged on both sides of the base body. A helical spring is provided between the pressure plate and the base body, sleeved on the outside of the telescopic rod. The spring has an elastic force that brings the clamping block closer to the base body.

7. The ultrasonic testing auxiliary device according to claim 6, characterized in that, The clamping member includes a column head, one end of which is fixed to the swing frame, and the other end of which is fitted with a sleeve. A boss is fixed on the side of the seat away from the sleeve, and the boss is a rubber part.

8. The ultrasonic testing auxiliary device according to claim 6, characterized in that, The clamping member includes a column head, one end of which is fixed to the swing frame, and the other end of which is fitted with a sleeve. The position of the sleeve relative to the column head is adjustable, and the end of the sleeve away from the column head is fixed to the base body.

9. The ultrasonic testing auxiliary device according to claim 8, characterized in that, The sleeve is provided with a slot for movably inserting into the end near the column head. A tightening bolt is threaded through the side wall of the slot near the opening and the inner end of the tightening bolt abuts against the column head.

Images