Ultrasonic probe with measuring and positioning device
By integrating a tape measure and impact needle on the ultrasonic probe, the problem of inaccurate defect position marking in manual ultrasonic detection of welds is solved, and fast and accurate defect measurement and marking is achieved.
Patent Information
- Application Number
- CN202510574295.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-06
- Publication Date
- 2025-08-15
AI Technical Summary
In manual ultrasonic detection of welds, it is difficult for the prior art to accurately mark the defect location, and the marking process is prone to errors due to slippage or coating influences defect determination.
The ultrasonic probe is integrated with the tape measure and the impact pin. The tape measure is fixed with the impact pin. The impact pin is used to make pits and mark the weld surface. The tape measure is used to measure the defect distance and mark it in combination with the ultrasonic flaw detector to display the numerical value.
It realizes fast and accurate defect measurement and marking, improves the accuracy of defect positioning and operational convenience, and reduces marking errors.
Smart Images
Figure CN120490302A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the field of ultrasonic detection, in particular to an ultrasonic probe with a measuring and positioning device. Background Art
[0002] During manual ultrasonic testing of welds, it's often necessary to determine whether a reflected wave is a defect. The horizontal position of the reflected wave displayed by the ultrasonic flaw detector is the horizontal distance from the probe measured with a steel ruler. If the reflected wave is located within the weld, it's likely a defect. To determine whether it's a defect, it's sometimes necessary to inspect and mark the defect location from both sides of the weld. If suspected defects are detected in the same location on both sides of the weld, it's generally considered a defect.
[0003] The current method for marking defect locations on weld surfaces is: 1. Hold the probe with one hand and a steel ruler with the other hand to measure the length. One end of the steel ruler needs to support the probe to ensure accurate positioning. A slate pencil or marker cannot be used at this time. 2. Keep the hand holding the steel ruler still and press the ruler to prevent displacement. Put down the probe, free your hand, and then pick up the slate pencil or marker to mark according to the scale of the steel ruler.
[0004] Because the steel ruler is out of the probe's position during marking, it can easily slip, causing the marking position to deviate. Furthermore, during weld inspection, the weld surface and sides are coated with coupling agent (motor oil or chemical paste). This makes it difficult for a slate pencil or marker to leave a mark due to the oil or chemical paste. Determining incomplete penetration at the weld root requires accurate knowledge of the reflected wave's position; inaccurate or unclear position markings can severely impact defect detection. Summary of the Invention
[0005] The object of the present invention is to overcome the deficiencies in the above-mentioned background technology and to provide an ultrasonic probe with a built-in measuring and positioning device to improve the measurement speed and the accuracy of defect positioning.
[0006] The technical solution of the present invention is:
[0007] An ultrasonic probe with a built-in measuring and positioning device includes a probe body, and is characterized in that it also includes a tape measure and an impact striker; the tape box of the tape measure is fixed to the probe body; and the tape of the tape measure is fixed to the impact striker.
[0008] The measuring tape and the impact striker are arranged at the front of the probe body; the impact striker is arranged vertically; the probe body is provided with a first card slot for installing the measuring tape and a second card slot for accommodating the impact striker.
[0009] The impact firing pin includes a main sleeve, an impact head that can be axially slidably positioned at the bottom end of the main sleeve inner cavity, a locking sleeve that can be axially slidably positioned outside the top end of the main sleeve, an elastic clip fixed to the locking sleeve and arranged in the main sleeve inner cavity, and a release top column that passes through the locking sleeve from top to bottom and extends into the elastic clip.
[0010] The impact striker further includes a first spring arranged between the locking sleeve and the main sleeve, a second spring arranged between the locking sleeve and the release top column, and a third spring arranged between the locking sleeve and the impact head.
[0011] The impact head includes an impact head sleeve, a lock head arranged on the top of the impact head sleeve, a striker positioned axially slidably in the inner cavity of the impact head sleeve, a fourth spring arranged between the lock head and the striker, and ink arranged between the impact head sleeve and the striker.
[0012] The front end of the measuring tape is fixed to the locking sleeve.
[0013] The 0 mark of the tape is the center of the impact striker.
[0014] The reel of the measuring tape is arranged horizontally.
[0015] The working principle of the present invention is:
[0016] A tape measure and an impact pin are added to the original ultrasonic probe. The added components do not affect the original detection performance of the probe. The tape of the tape measure is connected to the impact pin. The main function of the impact pin is to create a pit with a depth of about 0.3mm on the weld surface. At the same time, the ink of the impact pin flows into the pit for marking. When the impact pin is removed, the tape is pulled out to measure the length. In this way, the horizontal distance position of the defect can be measured according to the value displayed by the ultrasonic flaw detector, and the defect position can be marked on the weld surface at the same time.
[0017] The beneficial effects of the present invention are:
[0018] The new ultrasonic detection probe provided by the present invention has its own tape measure and marking function, which can greatly facilitate ultrasonic detection personnel to measure and mark weld defects, solving the problem of difficulty in on-site defect positioning and marking positions. It has the characteristics of high integration, simple operation, easy portability, fast measurement speed and accurate defect positioning. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a main structural schematic diagram of the present invention.
[0020] Figure 2 It is a schematic diagram of the top structure of the present invention.
[0021] Figure 3 It is a schematic cross-sectional structural diagram of the impact striker of the present invention.
[0022] Figure 4 It is a schematic diagram of the cross-sectional structure of the main sleeve and the sliding sleeve of the present invention.
[0023] Figure 5 It is a schematic cross-sectional structural diagram of the locking sleeve, the guide sleeve and the elastic buckle of the present invention.
[0024] Figure 6 It is a schematic diagram of the main structure of the elastic buckle of the present invention.
[0025] Figure 7 It is a schematic cross-sectional structural diagram of the release top column of the present invention.
[0026] Figure 8 It is a schematic cross-sectional structural diagram of the impact head of the present invention.
[0027] Figure 9 It is a schematic diagram of the usage of the present invention.
[0028] Figure 10 This is one of the schematic diagrams of the working mode of the impact striker of the present invention.
[0029] Figure 11 This is the second schematic diagram of the working mode of the impact striker of the present invention.
[0030] Reference numerals:
[0031] Probe body 1, first card slot 1-1, second card slot 1-2, tape measure 2, tape 2-1, ruler box 2-2, impact striker 3, end cover 3-1, locking head 3-11, conical head 3-11-1, connecting rod 3-11-2, base 3-11-3, impact head sleeve 3-13, ink 3-14, striker 3-15, fixing slot 3-16, button 3-2, first spring 3-21, second spring 3-22, third spring 3-23, fourth spring 3-24, release top column 3-3, first limiting structure 3-31, second limiting structure 3-32, locking sleeve 3-4, guide sleeve 3-5, sliding sleeve 3-6, main sleeve 3-7, elastic buckle 3-8, upper claw hook 3-8-1, lower claw hook 3-8-2, inner recess 3-8-3, tightening ring 3-9. DETAILED DESCRIPTION
[0032] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.
[0033] The present invention relates to an ultrasonic probe with a built-in measuring and positioning device. When manually ultrasonically detecting weld defects, the horizontal distance from the defect to the probe can be conveniently measured using a tape measure built into the probe, and the defect position mark can be made on the metal weld using an impact striker built into the probe.
[0034] like Figure 1 As shown, an ultrasonic probe with a built-in measuring and positioning device includes a probe body 1, a measuring tape 2 and an impact striker 3.
[0035] The structure of the probe body 1 is consistent with the prior art, and the tape measure and the impact striker are arranged at the front end of the probe body ( Figure 1 The structure of the tape measure is consistent with the prior art. The tape measure is a pocket steel tape measure, that is, a miniaturized ordinary steel tape measure, with a maximum measuring length of 10 cm. The tape measure includes a ruler box 2-2 and a ruler tape 2-1.
[0036] like Figure 1 and Figure 2 As shown, the front end of the probe body is provided with a first slot 1-1 and a second slot 1-2. The measuring tape is installed in the first slot. The measuring tape case is fixed to the probe body, and the measuring tape is fixed to the impact striker. The second slot is provided to the right of the first slot, forming a vertically extending opening at the front end of the probe body. The reel of the measuring tape is arranged horizontally, and the measuring tape unfolds horizontally when pulled out. The starting scale of the measuring tape is half the side length of the impact striker locking sleeve (the cross section of the locking sleeve is square), so the center position of the impact striker is the zero scale of the measuring tape.
[0037] When measurement and positioning are required, the impact pin is directly removed from the probe body, and the tape of the tape measure is pulled out. After the measurement is completed, the impact pin is stored in the second card slot, and the tape measure is automatically retracted.
[0038] The impact striker includes a main sleeve 3-7, an impact head, a locking sleeve 3-4, an elastic buckle 3-8, a release top column 3-3, a first spring 3-21, a second spring 3-22, and a third spring 3-23.
[0039] The main sleeve is cylindrical. The impact head is axially slidably positioned at the bottom end of the main sleeve's inner cavity. The locking sleeve is a rectangular sleeve (square in cross-section). The locking sleeve is axially slidably positioned outside the top end of the main sleeve. The front end of the tape measure is fixed to the locking sleeve, and the outer wall of the locking sleeve is provided with a fixing groove 3-16 for connecting the tape measure.
[0040] The top of the main sleeve 3-7 is connected to the sliding sleeve 3-6 via a threaded structure. The top of the locking sleeve 3-4 is connected to the end cover 3-1 via a threaded structure. The bottom of the end cover is connected to the downwardly extending guide sleeve 3-5 via a threaded structure. The guide sleeve passes downward through the sliding sleeve 3-6 and extends into the inner cavity of the main sleeve. The bottom end of the guide sleeve is provided with an elastic buckle 3-8.
[0041] like Figure 6 As shown, the upper portion of the elastic snap is provided with six upper claw hooks 3-8-1 and the lower portion is provided with four lower claw hooks 3-8-2. The top ends of the upper claw hooks are bent outward, and the upper claw hooks 3-8-1 are arranged in the grooves on the outer circumference of the guide sleeve 3-5 (the grooves extend along the generatrix of the sliding sleeve, omitted in the figure). The clamping ring 3-9 is tightened and fixed to the guide sleeve 3-5 by the inner wall thread matching the outer wall thread of the guide sleeve 3-5 (the outer wall of the guide sleeve is provided with threads between the grooves). The bottom ends of the lower claw hooks are bent inward, and the middle portion of the lower claw hooks is provided with an inner recess 3-8-3.
[0042] The release post 3-3 can be axially slidably positioned in the main sleeve and the locking sleeve. The release post passes through the end cover and the guide sleeve from top to bottom and then extends into the elastic buckle. The top of the release post is provided with a button 3-2, which protrudes upward from the top surface of the end cover. The bottom of the release post is a round table with a larger top and a smaller bottom. Pressing the button causes the release post to move downward, and the round table squeezes the inner depression of the lower claw hook, causing the lower claw hook to open (releasing the impact head for impact). Releasing the button causes the release post to move upward, and the lower claw hook to retract.
[0043] A first spring 3-21 is provided between the locking sleeve and the main sleeve. The first spring is mounted on the guide sleeve and has its ends pressed against the end cap and the sliding sleeve. A second spring 3-22 is provided between the locking sleeve and the release post. The second spring is mounted on the release post and has its ends pressed against the button and the guide sleeve. A third spring 3-23 is provided between the guide sleeve and the impact head.
[0044] A first limiting structure 3-31 for controlling the sliding stroke is provided between the outer wall of the locking sleeve and the end of the sliding sleeve. A second limiting structure 3-32 for controlling the sliding stroke is provided between the outer wall of the guide sleeve and the bottom surface of the sliding sleeve.
[0045] The impact head includes an impact head sleeve 3-13, a locking head 3-11, a striker 3-15, a fourth spring 3-24, and ink 3-14. The impact head sleeve is larger at the top and smaller at the bottom. The locking head, mounted on top of the impact head sleeve, includes a base 3-11-3 secured to the impact head sleeve via a threaded structure and a conical head 3-11-1 secured to the base via a connecting rod 3-11-2. When the release post is lowered, the conical head guides the lower claw hook outward. Once the conical head fully enters the lower claw hook, the lower claw hook returns to its original position and engages the conical head.
[0046] The striker is positioned axially and slidably within the inner cavity of the impact head sleeve. A fourth spring is disposed between the base and the striker. A certain distance is left between the striker and the impact head sleeve for filling with ink. Under the action of the fourth spring, the tip of the striker extends a certain distance from the bottom opening of the impact head sleeve, blocking the opening to prevent ink leakage. During impact, the striker loosens, causing a small amount of ink to leak out.
[0047] The operating steps of the present invention are:
[0048] 1. The initial state of the impact striker is as follows: Figure 3 As shown;
[0049] 2. After the ultrasonic flaw detection, pull out the impact needle horizontally by hand. The extended length of the tape is the horizontal distance of the reflected wave displayed by the ultrasonic flaw detector.
[0050] 3. Place the bottom end of the impact pin against the workpiece (weld surface), press the locking sleeve with your thumb, and the locking sleeve moves downward so that the elastic buckle hooks the impact head ( Figure 10 As shown), the third spring is compressed;
[0051] 4. Release your thumb, the first spring pushes the locking sleeve upward to reset, and the impact head is lifted upward ( Figure 11 shown);
[0052] 5. Press the button with your thumb to release the top column and move it downward, so that the elastic buckle opens and releases the impact head. Under the action of the third spring, the impact head moves downward instantly, and the workpiece is hit by the impact head, resulting in a pit. During the impact, the striker loosens, causing a small amount of ink to seep out and remain in the pit. Therefore, positioning, dotting and marking are completed in one go.
[0053] 6. After the ink is used up, the components of the present invention can be disassembled through the threaded structure and then ink can be added.
[0054] The accompanying drawings show preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described in this specification. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.
Claims
1. An ultrasonic probe with a built-in measuring and positioning device, comprising a probe body (1), characterized in that: It also includes a measuring tape (2) and an impact striker (3); the measuring tape box of the measuring tape is fixed to the probe body; and the measuring tape of the measuring tape is fixed to the impact striker.
2. The ultrasonic probe with a built-in measurement and positioning device according to claim 1, characterized in that: The tape measure and the impact striker are arranged at the front of the probe body; the impact striker is arranged vertically; the probe body is provided with a first card slot (1-1) for installing the tape measure and a second card slot (1-2) for accommodating the impact striker.
3. The ultrasonic probe with a built-in measurement and positioning device according to claim 22, characterized in that: The impact striker comprises a main sleeve (3-7), an impact head axially slidably positioned at the bottom end of the main sleeve inner cavity, a locking sleeve (3-4) axially slidably positioned outside the top end of the main sleeve, an elastic buckle (3-8) fixed to the locking sleeve and arranged in the main sleeve inner cavity, and a release top column (3-3) passing through the locking sleeve from top to bottom and extending into the elastic buckle.
4. The ultrasonic probe with a built-in measuring and positioning device according to claim 3, characterized in that: The impact striker further comprises a first spring (3-21) arranged between the locking sleeve and the main sleeve, a second spring (3-22) arranged between the locking sleeve and the release top column, and a third spring (3-23) arranged between the locking sleeve and the impact head.
5. The ultrasonic probe with a built-in measurement and positioning device according to claim 4, characterized in that: The impact head comprises an impact head sleeve (3-13), a lock head (3-11) arranged at the top of the impact head sleeve, a striker (3-15) axially slidably positioned in the inner cavity of the impact head sleeve, a fourth spring (3-24) arranged between the lock head and the striker, and ink (3-14) arranged between the impact head sleeve and the striker.
6. The ultrasonic probe with a built-in measurement and positioning device according to claim 5, characterized in that: The front end of the measuring tape is fixed to the locking sleeve.
7. The ultrasonic probe with a built-in measurement and positioning device according to claim 6, characterized in that: The 0 mark of the tape is the center of the impact striker.
8. The ultrasonic probe with a built-in measurement and positioning device according to claim 7, characterized in that: The reel of the measuring tape is arranged horizontally.