Ultrasonic flaw detector
By designing the limit structure in the ultrasonic flaw detector, the problem of hand sweating caused the flaw detector to slide, and the stability and safety of the flaw detector during long-term use are achieved.
Patent Information
- Application Number
- CN202420697722.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-07
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2034-04-07
AI Technical Summary
When you hold an ultrasonic flaw detector with one hand for a long time to detect flaws, sweating on your hands causes a decrease in friction, and the ultrasonic flaw detector can easily slide off your hands.
An ultrasonic flaw detector including a limit structure is designed. The limit structure forms a fixed structure through connecting plates, fixed plates, rotating columns, limit belts and other components to prevent the flaw detector from sliding down.
It effectively avoids the problem of slipping the flaw detector due to sweating on the hand, and ensures that the flaw detector will not fall due to reduced friction during long-term use.
Smart Images
Figure CN222561573U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of ultrasonic flaw detectors, in particular to an ultrasonic flaw detector. Background Art
[0002] The ultrasonic flaw detector is composed of the flaw detector body, operation keys and probe. It is mainly used to detect whether there is any damage inside the material. It is more common in daily life.
[0003] In the prior art, a person holds an ultrasonic flaw detector in one hand and a probe in the other hand for use. However, because the person's hand will sweat during the process of holding the ultrasonic flaw detector in one hand for a long time for flaw detection, the sweating of the person's hand will cause the friction between the person's hand and the ultrasonic flaw detector to decrease, and as a result, the ultrasonic flaw detector is likely to slip from the person's hand during the flaw detection process. Utility Model Content
[0004] The utility model aims to solve the problem in the prior art that a person's hands will sweat when holding an ultrasonic flaw detector in one hand for a long time for flaw detection, and the sweating of the person's hands will cause the friction between the person's hands and the ultrasonic flaw detector to decrease, thereby causing the ultrasonic flaw detector to easily slip from the person's hands during the flaw detection process. An ultrasonic flaw detector is proposed to solve the problem.
[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an ultrasonic flaw detector, comprising a flaw detector body, a probe and a plurality of operation keys are installed on the inner wall of the flaw detector body, a display screen is installed on the side of the flaw detector body close to the operation keys, a limiting structure is provided on one side of the flaw detector body, the limiting structure comprises a connecting plate and a fixing plate, the connecting plate and the fixing plate are both fixedly connected to the flaw detector body, a fixing block and a connecting block are fixedly connected to the side of the fixing plate away from the flaw detector body, a rotating column is rotatably connected to the side where the fixing block and the connecting block are close to each other, the arc surface of the rotating column is fixedly connected to the fixing column, the inner wall of the fixing block is rotatably connected to a rotating rod, the rotating rod is fixedly connected to the rotating column, and one end of the fixing column close to the connecting block The inner wall of the connecting block is provided with a plurality of limit holes, the inner wall of the connecting block is slidably connected to the limit rod, the limit rod is slidably connected to the limit hole, the arc surface of the fixed column is fixedly connected to the limit band, the inner wall of the connecting plate is provided with an auxiliary groove and two slide grooves, the two slide grooves are intersected with the auxiliary grooves, the inner wall of the auxiliary groove is slidably connected with a moving plate, the inner wall of the slide groove is slidably connected with a sliding block, the two sliding blocks are fixedly connected to the moving plate, a spring is provided between the side of the moving plate away from the limiting band and the connecting plate, the two ends of the spring are respectively fixedly connected to the connecting plate and the moving plate, the side of the moving plate away from the spring is fixedly connected with two limit blocks, and the side of the two limit blocks close to each other is rotatably connected with an auxiliary rod, and the auxiliary rod is fixedly connected to the limiting band.
[0006] The effect achieved by the above components is: when a person holds the flaw detector body to perform flaw detection on the material, since the person needs to hold the flaw detector body with one hand and hold the probe with the other hand to perform flaw detection on the material, during the flaw detection process, the person needs to hold the flaw detector body with one hand for a long time, and the person's hands will sweat in the process of holding the flaw detector body for a long time. Because the sweating of the person's hands will cause the friction between the person's hands and the flaw detector body to decrease, the person is likely to slip during the flaw detection process, causing the flaw detector body to fall to the ground and cause damage to the flaw detector body. At this time, the person's hands can be limited by the limiting structure to prevent the flaw detector body from slipping from the person's hands.
[0007] Preferably, a positioning rod is slidably connected to the inner wall of the sliding block, and the positioning rod is fixedly connected to the sliding groove.
[0008] The effect achieved by the above components is that the positioning rod can limit the slider, thereby preventing the slider from being misplaced when sliding on the inner wall of the slide groove.
[0009] Preferably, one end of the limiting rod away from the handle is fixedly connected to a guide block, and the guide block is slidably connected to the limiting hole.
[0010] The effect achieved by the above components is that the guide block can guide the limiting rod, so that the limiting rod can slide into the inner wall of the limiting hole more quickly.
[0011] Preferably, the limiting belt is a leather belt, and the cross-section of the limiting belt is rectangular.
[0012] The effect achieved by the above components is that the leather material has good strength and is not prone to breakage during short-term use.
[0013] Preferably, the arc surface of the rotating rod is fixedly connected to an anti-slip sleeve, and the cross-section of the anti-slip sleeve is a hollow circle.
[0014] The effects achieved by the above components are: the anti-slip sleeve can increase the friction between the hand of the person and the rotating rod, and can prevent the person from slipping when rotating the rotating rod.
[0015] Preferably, an auxiliary structure is provided on the side of the flaw detector body close to the button, and the auxiliary structure includes a connecting plate, which is fixedly connected to the flaw detector body, and the inner wall of the connecting plate is provided with four limit grooves, and the inner walls of the limit grooves are slidably connected to limit columns, and the upper surfaces of the four limit columns are fixedly connected to a sun visor, and the inner wall of the sun visor is provided with a card slot, and the upper surface of the connecting plate is fixedly connected to a positioning plate, and the inner wall of the positioning plate is slidably connected to a card block, and the side of the card block away from the sun visor is fixedly connected to a moving column, and the arc surface of the moving column is sleeved with a compression spring, and the two ends of the compression spring are respectively fixedly connected to the card block and the positioning plate.
[0016] The effect achieved by the above components is: when personnel use the flaw detector body outdoors, due to the strong sunlight, personnel cannot clearly view the data on the display screen of the flaw detector body when performing flaw detection on materials. At this time, the display screen of the flaw detector body can be shaded by an auxiliary structure, thereby avoiding the problem that personnel cannot clearly view the data on the display screen of the flaw detector body when the sunlight is strong.
[0017] Preferably, one end of the movable column away from the clamping block is fixedly connected with a pull ring, and the cross section of the pull ring is circular.
[0018] The effect achieved by the above components is that the pull ring can facilitate personnel to move the movable column, thereby improving the convenience of personnel's operation.
[0019] In summary, the beneficial effects of the utility model are:
[0020] In the utility model, when a person needs to hold the ultrasonic flaw detector for a long time to perform flaw detection, the person can first pull the middle part of the limiting belt to move the limiting belt in a direction away from the flaw detector body, wherein the limiting belt is made of leather, the leather material has good strength, and is not easy to break in short-term use, and then the limiting belt drives the auxiliary rod to rotate and move in a direction close to the fixed column, the auxiliary rod drives the two limiting blocks to move in a direction close to the fixed column, the two limiting blocks drive the moving plate to move in a direction close to the fixed column, the moving plate drives the two sliders to move in a direction close to the fixed column and also drives the spring to stretch, wherein the slider slides on the arc surface of the positioning rod, wherein the positioning rod can limit the slider, and can prevent the slider from being misplaced when sliding on the inner wall of the slide groove, at this time, the person can pass the finger between the limiting belt and the flaw detector body, and release the limiting belt after passing through, at this time, the spring rebounds and drives the moving plate to move away from the person's hand, the moving plate drives the two limiting blocks to move in a direction away from the person's hand, and the two limiting blocks drive the auxiliary rod to move in a direction away from the person's hand. The auxiliary rod drives the limiting belt to move away from the personnel's hand until the limiting belt fits the back of the personnel's hand. If it is found that the limiting belt is not closely enough to the hand, the personnel can first use the anti-slip sleeve to drive the rotating rod to rotate, which can increase the friction between the personnel's hand and the rotating rod to prevent the personnel from slipping when rotating the rotating rod. Then the rotating rod drives the rotating column to rotate, the rotating column drives the fixed column to rotate, the fixed column drives the limiting belt to rotate, the limiting drives the auxiliary rod to move, and the auxiliary rod drives the two limiting blocks to move. When the personnel adjust to the appropriate After adjusting the tightness appropriately, the person drives the limit rod to move toward the limit hole with the help of the handle, and the limit rod drives the guide block to move toward the limit hole until the guide block completely slides into the inner wall of the limit hole, wherein the guide block can guide the limit rod, and can make the limit rod slide into the inner wall of the limit hole more quickly. By setting the limit structure, the person's hand is fixed, and the situation that the ultrasonic flaw detector slips from the person's hand due to sweating when the person holds the ultrasonic flaw detector for a long time for flaw detection is avoided.
[0021] In the utility model, when personnel need to use an ultrasonic flaw detector outdoors to perform flaw detection on materials, the personnel cannot clearly view the data on the display screen of the ultrasonic flaw detector in time due to the strong sunlight outdoors. At this time, an auxiliary structure can be used to solve the problem that personnel cannot clearly view the data in time when performing flaw detection work outdoors with strong sunlight. Then, the personnel can take out the sun visor before detection and then move the sun visor toward the direction close to the connecting plate. The sun visor drives the four limit posts to move toward the direction close to the connecting plate until the four limit posts slide into the inner walls of the four limit grooves. When the limit posts slide into the inner walls of the limit grooves When the limit column completely slides into the inner wall of the limit groove, the compression spring rebounds and drives the block to move in the direction close to the slot until the block slides into the inner wall of the slot. By setting the auxiliary structure, the problem that personnel cannot view data clearly and in time when performing flaw detection work outdoors with strong sunlight is solved. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;
[0023] Figure 2 For this utility model Figure 1 Schematic diagram of the back structure;
[0024] Figure 3 It is a schematic diagram of the limiting structure of the utility model;
[0025] Figure 4 It is a schematic diagram of the split structure of the limiting structure of the utility model;
[0026] Figure 5 For this utility model Figure 4 Schematic diagram of the local structure;
[0027] Figure 6 For this utility model Figure 5 A magnified image of point A;
[0028] Figure 7 For this utility model Figure 5 The enlarged view of point B;
[0029] Figure 8 It is a schematic diagram of the cross-sectional structure of the limiting structure of the utility model;
[0030] Fig. 9 For this utility model Figure 8 Enlarged view of point C;
[0031] Fig.10 It is a schematic diagram of the auxiliary structure of the utility model;
[0032] Fig.11 This is a schematic diagram of the split structure of the auxiliary structure of the utility model;
[0033] Fig.12 For this utility model Fig.11 The enlarged view of point D;
[0034] Fig.13 For this utility model Fig.11 Schematic diagram of the cross-sectional structure;
[0035] Fig.14 For this utility model Fig.13 Enlarged view of point E.
[0036] Legend: 1. Flaw detector body; 2. Operation key; 3. Probe; 4. Limiting structure; 401. Fixing plate; 402. Fixing block; 403. Rotating column; 404. Rotating rod; 405. Anti-slip sleeve; 406. Fixing column; 407. Limiting hole; 408. Limiting belt; 409. Limiting rod; 410. Handle; 411. Connecting plate; 412. Auxiliary groove; 413. Slide groove; 414. Positioning rod; 415. 5. Slider; 416. Spring; 417. Moving plate; 418. Limit block; 419. Auxiliary rod; 420. Connecting block; 421. Guide block; 5. Auxiliary structure; 501. Connecting plate; 502. Limit groove; 503. Limit column; 504. Sun visor; 505. Positioning plate; 506. Pull ring; 507. Moving column; 508. Compression spring; 509. Block; 510. Slot; 6. Display screen. DETAILED DESCRIPTION
[0037] Reference Figure 1 As shown, the utility model provides a technical solution: an ultrasonic flaw detector, comprising a flaw detector body 1, a probe 3 and a plurality of operation keys 2 are installed on the inner wall of the flaw detector body 1, a display screen 6 is installed on the side of the flaw detector body 1 close to the operation keys 2, a limiting structure 4 is provided on one side of the flaw detector body 1, and an auxiliary structure 5 is provided on the side of the flaw detector body 1 close to the keys.
[0038] The specific arrangement and function of the limiting structure 4 and the auxiliary structure 5 will be described in detail below.
[0039] Reference Figures 3 to 9As shown, in this embodiment: the limiting structure 4 includes a connecting plate 411 and a fixing plate 401, the connecting plate 411 and the fixing plate 401 are both fixedly connected to the flaw detector body 1, the fixing plate 401 is fixedly connected to a fixing block 402 and a connecting block 420 on a side away from the flaw detector body 1, the fixing block 402 and the connecting block 420 are rotatably connected to a rotating column 403 on a side close to each other, the arc surface of the rotating column 403 is fixedly connected to a fixing column 406, the inner wall of the fixing block 402 is rotatably connected to a rotating rod 404, the rotating rod 404 is fixedly connected to the rotating column 403, a plurality of limiting holes 407 are opened on the inner wall of the fixing column 406 near one end of the connecting block 420, the inner wall of the connecting block 420 is slidably connected to a limiting rod 409, and the limiting rod 409 slides with the limiting hole 407 The arc surface of the fixed column 406 is fixedly connected to the limiting belt 408, the inner wall of the connecting plate 411 is provided with an auxiliary groove 412 and two slide grooves 413, the two slide grooves 413 are connected with the auxiliary groove 412, the inner wall of the auxiliary groove 412 is slidably connected with a moving plate 417, the inner wall of the slide groove 413 is slidably connected with a slider 415, the two sliders 415 are fixedly connected with the moving plate 417, a spring 416 is provided between the side of the moving plate 417 away from the limiting belt 408 and the connecting plate 411, the two ends of the spring 416 are respectively fixedly connected with the connecting plate 411 and the moving plate 417, the side of the moving plate 417 away from the spring 416 is fixedly connected with two limiting blocks 418, and the side of the two limiting blocks 418 close to each other is rotatably connected with an auxiliary rod 419, The auxiliary rod 419 is fixedly connected to the limiting belt 408. When a person holds the flaw detector body 1 to perform flaw detection on a material, the person needs to hold the flaw detector body 1 with one hand and hold the probe 3 with the other hand to perform flaw detection on the material. During the flaw detection process, the person needs to hold the flaw detector body 1 with one hand for a long time. During the long period of holding the flaw detector body 1, the person's hand will sweat. The sweating of the person's hand will cause the friction between the person's hand and the flaw detector body 1 to decrease, and then the person is likely to slip during the flaw detection process, causing the flaw detector body 1 to fall to the ground and cause damage to the flaw detector body 1. At this time, the person's hand can be limited by the limiting structure 4 to prevent the flaw detector body 1 from slipping from the person's hand. The inner wall of the slider 415 is slidably connected with a positioning rod 414, and the positioning rod 414 is fixedly connected to the slide groove 413. The positioning rod 414 can limit the slider 415, which can prevent the slider 415 from being misplaced when sliding on the inner wall of the slide groove 413. The end of the limiting rod 409 away from the grip 410 is fixedly connected with a guide block 421, and the guide block 421 is slidably connected to the limiting hole 407. The guide block 421 can guide the limiting rod 409, so that the limiting rod 409 can slide into the inner wall of the limiting hole 407 more quickly. The limiting belt 408 is a leather belt, and the cross-section of the limiting belt 408 is rectangular. The leather material has good strength and is not easy to break in a short-term use. The arc surface of the rotating rod 404 is fixedly connected to the anti-slip sleeve 405.The cross section of the anti-slip cover 405 is a hollow circle, and the anti-slip cover 405 can increase the friction between the hand of the person and the rotating rod 404, and can prevent the person from slipping when rotating the rotating rod 404.
[0040] Reference Figures 10 to 14 As shown, in this embodiment: the auxiliary structure 5 includes a connecting plate 501, the connecting plate 501 is fixedly connected to the flaw detector body 1, the inner wall of the connecting plate 501 is provided with four limiting grooves 502, the inner wall of the limiting groove 502 is slidably connected to the limiting column 503, the upper surface of the four limiting columns 503 is fixedly connected with a sunshade 504, the inner wall of the sunshade 504 is provided with a card slot 510, the upper surface of the connecting plate 501 is fixedly connected with a positioning plate 505, the inner wall of the positioning plate 505 is slidably connected with a card block 509, the side of the card block 509 away from the sunshade 504 is fixedly connected with a moving column 507, the arc surface of the moving column 507 is sleeved with a compression spring 508, the two ends of the compression spring 508 are respectively connected to the card block 50 9 is fixedly connected to the positioning plate 505. When a person uses the flaw detector body 1 outdoors, due to the strong sunlight, the person cannot clearly view the data on the display screen 6 of the flaw detector body 1 when performing flaw detection on the material. At this time, the display screen 6 of the flaw detector body 1 can be shaded by the auxiliary structure 5, thereby avoiding the problem that the person cannot clearly view the data on the display screen 6 of the flaw detector body 1 when the sunlight is strong. The end of the movable column 507 away from the block 509 is fixedly connected with a pull ring 506. The cross-section of the pull ring 506 is circular. The pull ring 506 can facilitate the person to move the movable column 507, thereby improving the convenience of the person's operation.
[0041] Working principle: when a person needs to hold the ultrasonic flaw detector for a long time to perform flaw detection, the person can first pull the middle part of the limiting belt 408 to move the limiting belt 408 away from the flaw detector body 1, wherein the limiting belt 408 is made of leather, which has good strength and is not easy to break in short-term use. Then the limiting belt 408 drives the auxiliary rod 419 to rotate and move toward the direction close to the fixed column 406, the auxiliary rod 419 drives the two limiting blocks 418 to move toward the direction close to the fixed column 406, the two limiting blocks 418 drive the moving plate 417 to move toward the direction close to the fixed column 406, and the moving plate 417 drives the two sliders 415 to move toward the fixed column 406. The movement in the direction of the fixed column 406 also drives the spring 416 to stretch, wherein the slider 415 slides on the arc surface of the positioning rod 414, wherein the positioning rod 414 can limit the slider 415, and can prevent the slider 415 from being misplaced when sliding on the inner wall of the slide groove 413. At this time, the personnel can pass their fingers between the limiting belt 408 and the flaw detector body 1, and release the limiting belt 408 after passing through. At this time, the spring 416 rebounds and drives the moving plate 417 to move away from the personnel's hand. The moving plate 417 drives the two limiting blocks 418 to move in the direction away from the personnel's hand, and the two limiting blocks 418 drive the auxiliary rod 419 to move in the direction away from the personnel's hand. The auxiliary rod 419 drives the limiting belt 408 to move away from the personnel's hand until the limiting belt 408 fits against the back of the personnel's hand. If the limiting belt 408 is not tightly enough against the hand, the personnel can first use the anti-slip sleeve 405 to drive the rotating rod 404 to rotate, which can increase the friction between the personnel's hand and the rotating rod 404 to prevent the personnel from slipping when rotating the rotating rod 404. Then the rotating rod 404 drives the rotating column 403 to rotate, the rotating column 403 drives the fixed column 406 to rotate, the fixed column 406 drives the limiting belt 408 to rotate, the limiting belt 408 drives the auxiliary rod 419 to move, and the auxiliary rod 419 drives the two limiting blocks 418 to move. When the personnel adjusts the tightness to a suitable level, the personnel drives the limit rod 409 to move toward the limit hole 407 with the help of the handle 410, and the limit rod 409 drives the guide block 421 to move toward the limit hole 407 until the guide block 421 completely slides into the inner wall of the limit hole 407, wherein the guide block 421 can guide the limit rod 409, so that the limit rod 409 can slide into the inner wall of the limit hole 407 more quickly. By setting the limit structure 4, the effect of fixing the personnel's hands is achieved, thereby preventing the ultrasonic flaw detector from slipping from the personnel's hands due to sweating when the personnel hold the ultrasonic flaw detector for a long time for flaw detection.
[0042] In addition, when personnel need to use an ultrasonic flaw detector outdoors to perform flaw detection on materials, the outdoor sunlight is relatively strong, which makes it impossible for personnel to clearly view the data on the ultrasonic flaw detector display screen 6 in time. At this time, the auxiliary structure 5 can be used to solve the problem that personnel cannot clearly view the data in time when performing flaw detection work outdoors under strong sunlight. Then, the personnel can take out the sun visor 504 before detection and then move the sun visor 504 toward the direction close to the connecting plate 501. The sun visor 504 drives the four limit columns 503 to move toward the direction close to the connecting plate 501 until the four limit columns 503 slide into the inner walls of the four limit grooves 502. When the limit columns 503 slide into the inner walls of the limit grooves 502, the sun visor 504 will first contact with the block 509. The abutment then drives the block 509 to move away from the sun visor 504, the block 509 drives the compression spring 508 to contract and drives the movable column 507 to move away from the sun visor 504, the movable column 507 drives the pull ring 506 to move away from the sun visor 504, wherein the pull ring 506 can facilitate personnel to move the movable column 507, thereby improving the convenience of personnel operation. When the limit column 503 completely slides into the inner wall of the limit groove 502, the compression spring 508 rebounds and drives the block 509 to move towards the direction of the groove 510 until the block 509 slides into the inner wall of the groove 510. By setting the auxiliary structure 5, the problem that personnel cannot view data clearly and in time when performing flaw detection work outdoors with strong sunlight is solved.
[0043] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.
Claims
1. An ultrasonic flaw detector, comprising a flaw detector body (1), characterized in that: The inner wall of the flaw detector body (1) is provided with a probe (3) and a plurality of operating keys (2); a display screen (6) is provided on a side of the flaw detector body (1) close to the operating keys (2); a limiting structure (4) is provided on one side of the flaw detector body (1); the limiting structure (4) comprises a connecting plate (411) and a fixing plate (401); the connecting plate (411) and the fixing plate (401) are both fixedly connected to the flaw detector body (1); a fixing block (402) is fixedly connected to the fixing plate (401) on a side away from the flaw detector body (1); ) and a connecting block (420), the fixed block (402) and the connecting block (420) are rotatably connected to a rotating column (403) on one side close to each other, the circular arc surface of the rotating column (403) is fixedly connected to a fixed column (406), the inner wall of the fixed block (402) is rotatably connected to a rotating rod (404), the rotating rod (404) is fixedly connected to the rotating column (403), a plurality of limiting holes (407) are opened on the inner wall of the fixed column (406) close to one end of the connecting block (420), and the inner wall of the connecting block (420) is slidably connected to the limiting rod (409), the limiting rod (409) is slidably connected to the limiting hole (407), the arc surface of the fixing column (406) is fixedly connected to the limiting belt (408), the inner wall of the connecting plate (411) is provided with an auxiliary groove (412) and two sliding grooves (413), the two sliding grooves (413) are connected to the auxiliary groove (412), the inner wall of the auxiliary groove (412) is slidably connected to a moving plate (417), the inner wall of the sliding groove (413) is slidably connected to a sliding block (415), the two sliding blocks (415) are connected to the moving plate ( The movable plate (417) is fixedly connected to the limiting belt (408), a spring (416) is provided between the side of the movable plate (417) away from the limiting belt (408) and the connecting plate (411), the two ends of the spring (416) are fixedly connected to the connecting plate (411) and the movable plate (417), the side of the movable plate (417) away from the spring (416) is fixedly connected to two limiting blocks (418), the side of the two limiting blocks (418) close to each other is rotatably connected to an auxiliary rod (419), and the auxiliary rod (419) is fixedly connected to the limiting belt (408).
2. An ultrasonic flaw detector according to claim 1, characterized in that: The inner wall of the sliding block (415) is slidably connected with a positioning rod (414), and the positioning rod (414) is fixedly connected to the sliding groove (413).
3. The ultrasonic flaw detector according to claim 1, characterized in that: One end of the limiting rod (409) away from the handle (410) is fixedly connected to a guide block (421), and the guide block (421) is slidably connected to the limiting hole (407).
4. The ultrasonic flaw detector according to claim 1, characterized in that: The limiting belt (408) is a leather belt, and the cross section of the limiting belt (408) is rectangular.
5. The ultrasonic flaw detector according to claim 1, characterized in that: The arc surface of the rotating rod (404) is fixedly connected to the anti-slip sleeve (405), and the cross-section of the anti-slip sleeve (405) is a hollow circle.
6. The ultrasonic flaw detector according to claim 1, characterized in that: An auxiliary structure (5) is provided on one side of the flaw detector body (1) close to the button, and the auxiliary structure (5) comprises a connecting plate (501), the connecting plate (501) is fixedly connected to the flaw detector body (1), the inner wall of the connecting plate (501) is provided with four limiting grooves (502), the inner wall of the limiting groove (502) is slidably connected to a limiting column (503), the upper surfaces of the four limiting columns (503) are fixedly connected to a sunshade (504), and the sunshade (504) ) is provided with a card slot (510), the upper surface of the connecting plate (501) is fixedly connected to a positioning plate (505), the inner wall of the positioning plate (505) is slidably connected to a card block (509), a side of the card block (509) away from the sun visor (504) is fixedly connected to a movable column (507), the circular arc surface of the movable column (507) is sleeved with a compression spring (508), and the two ends of the compression spring (508) are respectively fixedly connected to the card block (509) and the positioning plate (505).
7. An ultrasonic flaw detector according to claim 6, characterized in that: One end of the movable column (507) away from the clamping block (509) is fixedly connected with a pull ring (506), and the cross section of the pull ring (506) is circular.